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43004-019D - GAI

1. 49 SERVICE ADJUST sente iesu e OPE DEDE GER DIUTIUS UNTIL BER UE EI RIF 51 Service Adjust Service Diagnostics i ee UR EHE REO OE 51 Service Adjust Manual Off hook Telephone Line Off hook Threshold Voltage esses 52 Entering Programmed Parameters 52 Mobile Programming of Auto Dial Numbers eese eene teen trennen 53 Wildcard Access Release ei RR SER qe guises e Eee eo Oe EEN 54 Programming Wildcard Access Release rencr einion n ETENEE EEE E E eene 55 Wildcard Access Release with Paging eese eene teeth een ieii isask esasa sias 56 Paging without Direct Channel Access eese eee enne 56 Paging with Direct Channel Access Suede RUE gat a quiate edam ad 57 Programming the Wildcard Code for use with Paging esee eene nennen enne 58 Miscellaneous Information about Wildcard Access Release Feature esee 59 MULTIEDIGIT ACCESS RELBASE insit eser tede ena perterriti iei p rennen rende rea riores tao 60 Digit ACCESS etu et RE eed eti ete ne tet eto He Re detenti 60 Security Code Tabla a net reete re tete PE REX ad CEU UY auk Re Y e REGE PU VN 61 Multi Digit Release iae a e RR RE UY berti REN D E suaseedededanshoncagvasagearnsbaceseagts 62 Quo VOVnn
2. QUIRED Intercabling Diagram Flexar Repeater to PL1877A 04 15 152 PL1877A Microprocessor Radio Telephone Interconnect PL1877A Radio Installation T1600 Series Remote Interfacing In this mode of operation the PL1877A normally operates in the enhanced VOX simplex mode Receiver audio is used as the receiver carrier source Connect the PL1877A radio cable to the remote as follows color Function Terminal It is recommended to use the optional ac transformer and cable on remote installations Install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A Required Parameter Settings Using the Parameter Modification Procedure section of this manual set the following parameters Parameter 1 simplex 0 active low PTT sense input 1 enhanced VOX requires enhanced VOX option 153 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect All other parameters are programmed as applicable to system requirements Refer to the Parameter Modification Procedure on page 77 and then the Level Setting section on page 17 of this manual Level Setting The remote should be set to provide 8 dBm output measured at the 8 ohm hot output with any Touch Code digit from a properly adjusted mobile Also refer to Level Setting section in this manual A NOTE A The line input level to the remote shoul
3. 63 MOBILE ORIGINATED pei ie pe E TP HIC Ten ROI taxes HI ipi tei iie Hee ders 63 Signal Search Simplex Mode eee ed ee gie re EO 63 04 15 Publication 43004 019D Table of Contents PL1877A Microprocessor Radio Telephone Interconnect Enhanced VOX Simplex Mode de pete eet xe eve doeet bebe 63 Network Si nalitig e tee eee 64 Half Duplex Mode 2 edebat he DF DR HEP ERO EFE DRE ERE 64 LANDEINE ORIGINATED CALES ee re ep eo Rp re dran ned 66 DIVeCEACCESS t t i OSEE EE EMI EB E IS 66 Selective Signaling eie eee regere sided reete e re egere Are eripe ee etel ee lateri debes 66 MULTI DIGIT ACCESS RELEASE e ODIT ED E He HERES Do E eR LINES era Hr ds raten edi 67 M lti Digit ACCESS e e Ee EHE SER CUR E EE END EHE CENE UA RU ERR eee e Rr eR ENTRE 67 Bypassing Restrictions via Multi digit Access esses 67 Security Code Privileged User Override Code esee esent ener enne 66 Installation of the Multi Digit Access Feature eee en then en ennt tenente entente nee 69 Configuring the Security Code to Bypass Restrictions eese sees eene nennen enne neret entente enne 71 Multi Dioit Release re WR nU REPE EE ETE Rr ee ONC bob EEE AETS 71 Linking Multi Digit Release to Multi Digit Access eese seen eene nennen enhn tenen tenen 72 T stallation scs ot oi t ERREUR Ie teste i
4. 5 teet eet aede eee 1 5 V Maximum high level input eet deret retener te eie eet ss de xerit 3 5 V Maximum lev l RR 100 V Physical Temp rature range creer t Ser eee eet ee eg eee te iia iere e a 0 C to 60 C dp eerte edd ele lt 95 at relative humidity at 50 Dimensi ns foe pr ee 7 0 W x 83D x 1 5 inches ere re 26 9 ounces 04 15 6 Description General Description The PL1877A Radio Telephone Interconnect is a highly advanced DSP based tool to connect to a public telephone network It can be used with a repeater or base station for initiating calls with properly equipped portables and mobiles and or receiving landline initiated calls With the telephone interconnect your wireless users can keep in contact with landline phone users The PL1877A provides a vast array of standard features that are optional with most telephone interconnects Features such as triple key access number restricts timers speed dial enhanced VOX built in paging and more mean easy operation control of land line communications and user efficiency Because of its programmable features the PL1877A can be used in most user environments and radio systems PWR BUSY PL CONN TX PLST MON INH C C C C C O CN Ne Front Panel View of the PL1877A Features of the PL
5. 1122 5 3589 B 3715 2 346 7 682 5 652 5 667 5 643 0 1472 9 1930 2 04 15 378 6 651 9 1217 8 489 8 507 0 473 2 802 5 832 5 817 5 1082 0 1598 0 2094 5 399 8 688 3 422 1 726 8 445 7 767 4 1251 4 543 3 1285 8 602 6 1321 2 668 3 562 3 524 8 623 7 582 1 691 8 645 7 847 5 877 5 892 5 922 5 937 5 967 5 862 5 1130 0 907 5 1287 0 952 5 1465 0 1642 0 2155 6 1687 2 2212 2 1733 7 2271 7 132 PL1877A Microprocessor Radio Telephone Interconnect 1063 2 524 6 903 2 1433 4 912 0 944 1 881 0 637 5 697 5 622 5 2688 0 1881 0 2468 2 3 Ea Loved Lea E BON EN Ea EA E ia PL1877A Microprocessor Radio Telephone Interconnect Paging Plectron Paging The Plectron paging feature requires a 4 digit prefix capcode Like 2 tone paging the capcode and code plan will determine at what frequency the paging tones will be transmitted Plectron paging uses the Plectron Code Plan Chart Table 3 and Plectron Tone Group Frequency Chart Table 4 Refer to the example below and the tables to determine the capcodes you need Plectron Paging Example Suppose the number of Plectron keypad digits accepted from the user on the selected channel is 0 and the capcode has been programmed to 3456 The A tone length is one second and the B tone length is two seconds If the console operator were to press the TRANSMIT button the consol
6. 0 Enable SID on patch release 1 62 Do not transmit the SID if it is time to do so and no station PTT has occurred since the last SID transmission 0 Transmit the SID if it is time to do so and no station PTT has occurred since the last SID transmission 1 The time in minutes between SID transmissions Valid range 0 59 minutes If this parameter is programmed to 0 periodic SID is disabled 501 512 Station ID SID enter the SID in ASCII as shown in the table below NOTE ASCII equivalents are given in hexadecimal 95 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect ASCII Equivalents in Hexadecimal ASCII ASCII ASCII Character Equivalent Character Equivalent Character Equivalent ge BA A Ww Nin oo A A lt Period Dash Slash Space 04 15 96 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Toll Restrictions Funston 46 Don t allow 9 as the first telephone number digit 0 Allow 9 as the first telephone number digit 1 47 Don t allow 1 as the first telephone number digit 0 Allow 1 as the first telephone number digit 1 48 0 Don t allow 0 as the first telephone number digit Allow 0 as the first telephone number digit 1 Up to eight different prefixes of up to four digits each may be restricted Addition
7. If all digits are filled with FF the corresponding code is disable 386 391 Multi digit release code corresponding to multi digit access prefix 1 392 397 Multi digit release code corresponding to multi digit access prefix 2 398 403 Multi digit release code corresponding to multi digit access prefix 3 404 409 Multi digit release code corresponding to multi digit access prefix 4 04 15 92 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Parameter Function ____________ O Multi digit Release as Related to Multi digit Access Don t tie multi digit release codes to multi digit access prefixes 0 Tie multi digit release codes to multi digit access prefixes 1 Default 0 Refer to the section on Multi digit Access Release in this manual Telephone Originated Release Don t land line user to disconnect a mobile originated call using DTMF command 0 Allow land line user to disconnect a mobile originated call using DTMF command 1 Automatic Release Methods Mobile Originated Call Current Supervision Don t Dbostaliowgbenedue betiery everaal or todo to disconmcstaoblle onea call phone line battery reversal or loss to disconnect mobile originated call 0 Allow phone line battery reversal or loss to disconnect mobile originated call 1 Default 0 Busy Tone Detection Disconnection aa tabusy deon Thisparamcer detitecihen
8. Tone 1 amp 2 Frequencies Tone 1 First of two tones generated during a custom page Enter the desired frequency The value will be adjusted to the actual frequency generated Tone 2 Second of two tones generated during a custom page Enter the desired frequency The value will be adjusted to the actual frequency generated Tone 1 amp 2 Durations Select the duration that each frequency is generated Link to Another ID Allows the user to specify whether another paging entry is linked to the one currently being edited NOTE This is only available if the entry being edited is NOT the only entry in the list Linked ID If Link to Another ID is selected this parameter contains the 2 digit user ID that is paged if the current user ID is unavailable NOTE Empty entries the current entry and entries that eventually link back to the current entry are not available 04 15 50 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Service Adjust Service Adjust Service Diagnostics Service Diagnostics allow the user to detect PL1877A hardware problems The PL1877A cannot remain in communication with the IAPS while performing the remote diagnostics Therefore results of the remote diagnostic session must be read at least 15 seconds later The following information is reported e Default parameters have been reloaded since remote diagnostics were last performed e Autodial memory has been modified by a mobile user
9. Tone PL reedless type TRN 4237A and similar Run a wire from U401 pin 28 on the PL deck to J601 pin 10 wire for meter 1 may be in pin 10 of J601 and possibly can be rerouted and used for this function Digital PL TRN6207A and similar Run a wire from U301 pin 7 on the DPL deck to J601 pin 10 wire for meter 1 may be in pin 10 of J601 and possibly can be rerouted and used for this function 04 15 142 PL1877A Microprocessor Radio Telephone Interconnect PL1877A Radio Installation 4 Reverse Burst Disable necessary for signal search mode only Tone PL reed type TRN6177C and similar Remove the lead on the PL deck that comes from J601 pin 1 PL on off from hang up box and solder it to Q406 base Solder the supplied 01 RF decoupling capacitor between base and emitter of Q406 Connect JU401 to HD Note there are two JU401s shown on the board pictorial The correct one for this function is the one that grounds the emitter of Q409 when connected to pin HD Tone PL reedless type TRN4237A and similar Remove the lead on the PL deck that comes from J601 pin 1 PL on off from hang up box and solder it to U401 pin 36 Remove the lead on the PL deck that comes from J601 pin 2 hang up box ground and solder it to the junction of C414 and R408 on the PL deck Remove R421 on the PL deck between U401 pin 7 and pin 26 Solder the supplied diode into the JU102 holes on the main circuit board close to squelch control with th
10. 0 4 Motorola EIA 0 6 123 04 15 Features Parameter PL1877A Microprocessor Radio Telephone Interconnect Function The number of digits accepted from a mobile user for selective signaling The valid range depends on the type of signaling selected DTMF 2805 1500 0 6 2 Tone 0 3 Plectron 0 4 Motorola EIA 0 6 NOTE Parameters 1083 1084 and 1085 apply only if multi mode selective signaling has not been selected If one of these parameters has been set to 0 the same paging sequence is generated every time For example if parameter 1083 0 the PL1877A automatically pages the preprogrammed capcode every time the landline user dials into the patch Multi Mode Parameter Function 1179 to 2878 The multi mode paging parameters create a table of the user IDs associated with multi mode paging It consists of up to 100 entries in a 17 byte pattern The pattern for each entry is described below 1 The first byte is to be entered using the format wxyzaaa aaaa defines the paging type of the user ID Paging types as defined in parameter 1081 are 0 DTMF 1 2 Tone 2 Plectron 3 2805 4 1500 5 Motorola EIA 5 Tone 8 TPL 9 DPL If this byte is set to F the multi mode selection this entry is disabled If 15 set to 1 direct channel access is granted following paging even if it has been previously disabled in parameters 58 42 and or 59 If the capcode for this user ID specifi
11. 373 e Multi digit release suffix 3 parameters 398 403 corresponds to multi digit access prefix 3 parameters 374 379 e Multi digit release suffix 4 parameters 404 409 corresponds to multi digit access prefix 4 parameters 380 385 The PL1877A can be programmed to require the corresponding multi digit release suffix when the mobile user has accessed the phone line via a multi digit access prefix For example suppose multi digit release suffix 2 is 546 Then when the mobile user accessed the PL1877A by entering 786 the sequence 546 would be required to cause disconnection NOTE If the associated multi digit release suffix is not enabled the PL1877A requires the general multi digit release suffix If the general multi digit release suffix is not enabled the PL1877A simply disconnects in response to the disconnect command Installation To force the user of a multi digit access prefix to use the associated multi digit release suffix set parameter 39 Then enter the release suffix digits in the appropriate parameters as listed above The PL1877A can be programmed to use multi digit release prefixes instead of suffixes If this is desired set parameter 40 1 In this case the general multi digit release code and all multi digit release codes corresponding to the multi digit access prefixes is a prefix to the or release command The wildcard access release feature provides a mobile user with
12. Enable enable feature 1 Default 428 433 Station repeater enable prefix Miscellaneous Features ol multiple ringing to mobiles 0 Enable multiple ringing to mobiles 1 Default 0 Disable over beep to phone user 0 Enable over beep to phone user 1 Default 1 The over beep is returned to the phone user when the PL1877A detects loss of mobile carrier It indicates that it is the phone user s turn to talk Don t allow mobile user to access busy phone line with command 0 Allow mobile user to access busy phone line with command 1 Default 0 If the mobile has attempted to access the PL1877A for an outbound call and the PL1877A detects that the phone line is already in use by an attendant line sharing telephone user busy tones are transmitted to the mobile The PL1877A continues to return busy tones for 30 seconds or until the attendant hangs up If the attendant hangs up the PL1877A accesses the phone line for the requested outbound call In this situation the mobile can force PL1877A to access the busy line by sending Ring signal generated to mobile is low frequency 0 low frequency is a 430 390 Hz combination Ring signal generated to mobile is high frequency 1 high frequency is an 840 800 Hz combination Default 0 103 04 15 Parameter Modification Parameter Function Reference Table Description Determines whether RX receiver audio source is
13. command The PL1877A supports four unique multi digit access codes each of which may be from 1 6 digits in length Each multi digit access code can be programmed to bypass a specified set of restrictions such as dialing a telephone number beginning with 1 as cited in the example above NOTE Consider the multi digit access sequence XYZ where XYZ is the 3 digit multi digit access prefix to the access command The PL1877A recognizes XYZ as a multi digit access prefix only if the time between individual digits represented by the in X Y Z is no greater than 1 second Also the duration of each digit must be no greater 3 5 seconds Bypassing Restrictions via Multi digit Access Refer to the Bypassing Restriction Table on page 68 for the list of the restrictions that can be bypassed via a multi digit access prefix The parameter that enables each restriction is also listed 67 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect Security Code Privileged User Override Code The security code consists of the DTMF command 0 followed by a suffix of 1 6 digits When the PL1877A receives the security code 0 n where n is the security code suffix it immediately bypasses all restrictions listed in the table below The restrictions remain bypassed until the next disconnection 1 the next time the PL1877A generates 6 disconnect beeps NOTE The security code is not an access code the PL1877A
14. generates two simultaneous tones one for the row and one for the column meme 7 C X T To send a signal to a radio Transmit Squelch A system that prevents audio from being heard when no signal is being received 165 04 15 Notes PL1877A Microprocessor Radio Telephone Interconnect 166
15. phone line audio is delayed before being presented at the TX audio port in the enhanced VOX mode 04 15 84 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Carrier Detect Methods The following parameters determine the source of the signal used to indicate mobile carrier detect One of three signals can be selected These are as follows external logic level input internal squelch or internal VOX The active polarity of the external input can also be selected By default the PL1877A is configured for internal squelch carrier detect 3 0 Internal carrier detect a 1 External logic level carrier detect 4 0 Carrier detect input is active low a 1 Carrier detect input is high 0 Internal squelch for carrier detect 1 RX audio VOX for carrier detect External Logic Input Set parameter 3 1 Set parameter 4 as needed Internal Squelch Circuit Set parameter 3 0 Set parameter 5 0 RX Audio VOX Set parameter 3 0 Set parameter 5 1 PL Validation of Carrier Signal When parameter 06 is enabled the Private Line detect input is checked to determine if a valid system carrier is present The active polarity of this input is set by the next parameter No PL detect input required to validate carrier detect 0 PL detect input required to validate carrier detect 1 Default 0 PL detect input is active low 0 PL detect input is active high 1 Default 0 85 04 15 Parameter M
16. status of the following e PTT Sense Input LED 1 bit 7 e PL Detect Input LED 2 bit 6 e Auxiliary Carrier Detect LED 3 bit 5 The 5 least significant LEDs are used to display decoded DTMF digits Test 5 Mobile to Phone Audio Path PTT is activated and phone audio is auto leveled and routed to the transmitter If enhanced VOX option is present enhanced VOX operation is used otherwise auto leveling is used The UP button is used to toggle phone line auto leveling ON or OFF The 5 least significant LEDs refer to the LED assignment diagram on page 13 display a binary representation of DTMF decoded from the phone line The most significant LED indicates the status of phone line VOX if the enhanced VOX option is present NOTE A DTMF 0 is displayed as hexadecimal 10 decimal 16 in binary Test 6 Non accessed Patch Functions The non accessed phone line status is represented by the LEDs The signals displayed are e Off Hook Status of an Attendant Phone e Ring Voltage e Phone Line Current Polarity positive negative none e Ring Threshold Setting Refer LED assignment diagram for Test 6 below OCRAM oc MRTI 2000 PWR BUSY PL CONN TX PLST MON INH i i i T i q 1 i OFF HOOK INDICATOR L LSB OF RING THRESHOLD SETTING LINE 2 RING INDICATOR BIT 1 OF RING THRESHOLD SETTING LINE 1 RING INDICATOR MSB OF RING THRESHOLD SETTIN
17. 1500 Hz 2805 paging preamble Valid digit range 0 9 Parameter Function 1096 The number of 10 ms periods in tone off time for 1500 paging Valid range 0 8 10 ms to 90 ms 1500 Hz Single Mode Paging 1156 1164 1500 paging preamble Valid digit range 0 9 127 04 15 Features PL1877A Microprocessor Radio Telephone Interconnect Motorola 5 6 Tone Parameter Function Disable 5 Tone diagnostic mode 0 Enable 5 Tone diagnostic mode 1 If this parameter is set to 1 all tones in a 5 tone sequence will be generated with a duration of 1 second Disable dual addressing in Motorola 5 tone selective signaling 0 Enable dual addressing in Motorola 5 tone selective signaling 1 5 6 Tone Single Mode Paging 1129 1165 1170 Group Calls Parameter Determine the preamble tone number from the table below Then enter the number in this paragraph such that the 10 s digit appears in the four most significant bits and the 1 s digit appears in the four least significant bits For example for a preamble tone of 570 Hz enter 13 hexadecimal 13 00 600 05 1305 15 675 20 1240 01 741 06 1446 16 750 2 1520 02 882 07 1587 17 825 22 1750 03 1023 08 1728 18 850 23 1860 04 1164 09 1869 19 1010 24 2135 25 2280 Preprogrammed Motorola EIA 5 Tone paging digits Valid digit range 0 9 Function Disable the ability of a land line user to c
18. LED LEAST SIGNIFICANT LED Digit cycling may be slowed down by pressing the DOWN button once or frozen by pressing the DOWN button a second time Pressing the UP button speeds up the cycling process NOTE A DTMF 0 is displayed as hexadecimal 10 decimal 16 in binary Test 3 Mobile to Phone Audio Path This test accesses the phone line and routes mobile audio to the phone lines with autoleveling Decoded DTMF from the mobile is displayed via the 5 least significant LEDs in binary format 15 dB of RX audio attenuation may be toggled ON or OFF by pressing the UP button When test 3 is entered the attenuator is in the state required by parameter 2 Pressing the DOWN button toggles the state of the RX audio 6 dB per octave de emphasis When Test 3 is entered the de emphasis is in the state required by parameter 1 The three most significant LEDs refer to the LED assignment diagram above are used to indicate the state of the following e Carrier Detect Input LED 1 bit 7 e RX VOX LED 2 bit 6 e Internal Squelch Detection LED 3 bit 5 If the LED is lit the input is active if the LED is not lit the input is inactive 13 04 15 Installation PL1877A Microprocessor Radio Telephone Interconnect Test 4 Mobile to Phone Path 2 Test 4 is identical to Test 3 with the following exceptions Test 4 activates the monitor output and disables RX auto leveling The LEDs refer to the LED assignment diagram on page 13 display the
19. Mode Mitrek Consolette Base Station to PL1877A 139 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect Mitrek Consolette Enhanced VOX Simplex Mode Make the following modifications and additions to the base station using spare screw terminals on TBI and TB2 1 RX Detected Audio Run a wire to DETECTED AUDIO available at solder strip TB4 6 local control station only or TB10 6 remote control station 2 PL Detect Run a wire to SQUELCH DISABLE on the MITREK transmitter receiver board Set up the PL detect circuit output for or squelch operation JU1 in JU2 out on the PL deck for tone PL JUS in JU4 out for digital PL If the radio has a busy light kit refer to the schematic for jumper information If the busy light kit is not present add a 5 6k 4 W resistor from SQUELCH DISABLE to ground 3 PL Stripping Run a wire to the CD code disable stake pin on the PL deck Now connect the PL1877A P1 interconnect cable to TB1 and TB2 as follows P1 camie color ro rte Earth Ground Run the supplied 712 or larger wire from the GND terminal on the rear of the PL1877A to the base station chassis ground This wire must be as short as practical not coiled and fastened securely to the base station chassis After this connection has been made the installation is complete If the PL1877A is to be dc powered connect the red lead in the dc power cable to TB2 1 and the black lead
20. The PL1877A could also be configured to use the PL1877A s internal squelch circuit This would require setting the parameters as shown on the previous page with the following exceptions A NOLE A With the parameter settings listed below the radio must be internally jumpered to provide discriminator audio and JU551 must be in the position 0 de emphasis 0 internal carrier detect All other parameters are programmed as applicable to system requirements Refer to the Parameter Modification Procedure on page 77 and then the Level Setting section on page 17 of this manual 1 JU202 OUT mid level audio 04 15 156 Theory of Operation Power Supply DC power enters the PL1877A via J2 and passes through fusible resistor R350 Common mode choke L201 acts to reduce the level of EMI RFI out of the dc power port C261 and C262 also work with the choke to accomplish additional filtering D226 provides reverse and overvoltage protection C259 L202 and C260 provide high frequency filtering from the switch mode power supply C215 U206b and associated components regulate the 5 volt source derived from the 14 volt supply Programmable zener U212 provides the 5 volt reference The 2 volt reference voltage is obtained by dividing the reference 5 volts in half by voltage divider R370 and R369 and buffered by U202d U211 Q211 T201 and associated components comprise a fly back switch mode power supply operating at app
21. accidental parameter changes Once you have entered the prefix code if so programmed followed by the 0 command the parameter modification procedure is the same as for land line remote programming of parameters Once you have completed programming the desired parameters exit the parameter modification routine by entering a from the mobile DTMF pad The PL1877A should return a series of 6 disconnect beeps to the mobile informing you that the patch is in the idle condition NOTE The DTMF programming mode times out after approximately minute of no activity from the user When this occurs the PL1877A returns to idle operation The following is a list of parameters that are programmable via DTMF emt LE Determines whether access command is or Determines whether the normal release command is or 16 Determines whether phone line reversal or loss to disconnect mobile originated call is disabled or enabled 17 Determines whether phone line current reversal or loss to disconnect land line originated call is disabled or enabled 37 Determines whether mobile DTMF regeneration after call is established is enabled or disabled 45 Determines whether DTMF 1 tone upon automatic phone line access is enabled or disabled Enable or disable disconnection upon detection of dial tone of a land line originated call 6 Determines whether the ring signal generated to the mobile is low or a high frequency Mobile au
22. addition to the standard function provided Install the following modification additions to the base station using spare screw terminals on TB1 and TB2 1 RX Detected Audio Run a wire to DETECTED AUDIO available at solder strip TB4 6 local control station only or TB10 6 remote control station 2 PL Detect Run a wire to SQUELCH DISABLE on the Mitrek transmitter receiver board Set up the PL detect circuit output for or squelch operation JUI in JU2 out on the PL deck for tone PL JUS in JU4 out for digital PL If the radio has a busy light kit refer to the schematic for jumper information If the busy light kit is not present add a 5 6k 1 4 W resistor from SQUELCH DISABLE to ground 3 PL Stripping Run a wire to the CD code disable stake pin on the PL deck 4 Reverse Burst Inhibit Run a wire to the PL deck as follows digital PL deck to E3 stake pin tone PL deck to junction of R18 R22 5 Now connect the PL1877A interconnect cable to and TB2 as follows P1 camie coor retos _ 137 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect If the PL1877A is to be dc powered connect the red lead in the dc power cable to TB2 1 and the black lead to TB2 4 connect the other end of the dc power cable into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If the optional ac transformer and cable are to be used install the ac
23. does not access the phone line in response to this code The PL1877A only bypasses the restrictions listed in the table below Bypassing Restriction Table 5 04 15 68 PL1877A Microprocessor Radio Telephone Interconnect Operator Instructions Installation of the Multi Digit Access Feature It is recommended that programming software be used to install the multi digit access feature However these instructions are also provided for use with the terminal programming feature Multi digit access prefix 1 is located in parameters 362 367 multi digit access prefix 2 is located in parameters 368 373 multi digit access prefix 3 is located in parameters 374 379 multi digit access prefix 4 is located in parameters 380 385 Each multi digit prefix can consist of DTMF digits from 0 D Fill all unused digits with FF hexadecimal FF If all digits are filled with FF the corresponding multi digit access prefix is disabled 1 Limiting patch access to users of multi digit prefixes You can program the PL1877A to allow accessing the phone line ONLY if the mobile user has entered a multi digit access sequence This feature can be used to prevent the PL1877A from responding to the simple access commands and n Parameter 38 should be set to 1 if you wish to limit phone line access to users of multi digit access prefixes 2 Programming the bypass characteristics of each prefix Progr
24. exclusive remedy and in no event shall GAI Tronics warranty obligations with respect to services exceed 100 of the total cost of services provided hereunder Limitations Exclusions The warranty on any equipment supplied hereunder is subject to Customer s use in compliance with applicable FCC regulations and manufacturer specifications The warranties herein shall not apply to and GAI Tronics shall not be responsible for any damage to the goods or failure of the services supplied hereunder to the extent caused by accident misuse abuse neglect system design product modification failure to follow instructions contained in the product manual repair or attempted repair by anyone not authorized by GAI Tronics improper installation installation of parts that do not conform to the quality or specifications of the original parts or accessories damage or loss occurred during shipment or any unit that is not new when sold or upon which the serial number has been defaced modified or removed The warranty does not extend to damage incurred by natural causes including Force Majeure The warranty does not cover microprocessors if failure is due to static damage or application of improper voltage THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE IN LIEU OF AND EXCLUDE ALL OTHER WARRANTIES AND REMEDIES WHETHER EXPRESS OR IMPLIED BY OPERATION OF LAW OR OTHERWISE INCLUDING ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Operati
25. goes on and off at the desired RF threshold levels generally 10 to 12 dB sinad The actual squelch sensitivity is determined by the radio in this case Any adjustments to squelch sensitivity must be made with the radio When complete exit the Diagnostic Test Mode by pressing the UP and PATCH ON OFF buttons simultaneously Internal Noise Operated Squelch Adjustment This procedure applies only if using the PL1877A internal noise operated carrier detect Its use requires that receive audio is taken from the discriminator or detector prior to any high frequency filtering The primary use for this method is Signal Search Simplex where its use is required Refer also to page 83 of this manual for the Signal Search Simplex mode Ensure that these basic parameters are set as follows 1 0 RX audio source has been pre emphasized 2 1 or 0 Set to match available detector level refer to Receiver Input Audio Level 3 0 Internal carrier detect 5 0 Internal squelch selected With the PL1877A in the idle state with no RF signal applied observe the BUSY LED Adjust control VR201 marked SQL with a small screwdriver until the LED extinguishes This adjustment is accessible on the rear of the PL1877A housing Then from the communications service monitor generate a signal on the receive frequency and verify that the LED lights at 10 to 12 dB sinad Readjust the control as needed to obtain the desired level of squelch sensitivity Fina
26. group call has been selected and the preset 2 tone digit is 7 Also the A tone length is set to 1 second and the B tone length is set to 3 seconds If the console operator entered the digits 43 and pressed the TRANSMIT button the console would generate 1251 4 Hz for 1 second followed by 669 9 Hz for 3 seconds These tone frequencies are located on Table 2 according to the following procedure 1 Locate the chosen code plan in this example on Table 1 2 From the same chart locate the most significant digit MSD of the 2 Tone prefix 7 in this example 3 Next determine the 2 digit number that appears at the intersection of the code plan row and the MSD column 62 in this example 4 The first digit of this number 6 in this example corresponds to a number under the Group heading on Table 2 and indicates which row of frequencies on Table 2 will be used for the A tone In this example the tone number entered by the console operator is 4 which corresponds to 1251 4 Hz 5 The second digit of the number from chart B 2 in this example also corresponds to a number under Table 2 Group and indicates which row of frequencies on Table 2 will be used for the B tone In this example the B tone number entered by the console operator is 3 which corresponds to 669 9 Hz The previous example involves the console operator being required to enter two digits from the keypad programming the number of 2 Tone digits accepted from the u
27. is erroneously seen as a mobile transmission In systems that require PL DPL and retransmit not generate the PL DPL signal such as most community repeaters no problem is encountered since carrier only is not seen as a system mobile Some repeater stations have a jumper for turn off delay but many delay turn off more than a second even though the 0 position is selected In these cases reducing the timing capacitor to a much smaller value produces the required results for example changing C11 on a MICOR repeater TLN4662A squelch gate module from 68 uF to 4 7 uF 2 60 Second Mobile Inactivity Timer In the enhanced VOX simplex mode the landline caller cannot be interrupted by the mobile until the 30 second time out Therefore it is possible for the mobile to hear the warning ticks and not be able to reset the inactivity timer because the landline party is talking Therefore it is recommended that the mobile inactivity timer parameter 122 be set to 3 minutes of mobile inactivity in Enhanced VOX simplex systems 141 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect MITREK A CONSOLETTE BASE STATION GRN BLK GROUND WHITE 5 PTT BLUE BLK ex 6 VIC LO BLUE WHITE 2 gt MIC HI 3 PL STRIPPING AC POWER CABLE 9 RX DETECTOR i TB4 6 DC POWER CABLE BLAC 2 10 P
28. keypads to answer incoming calls e PC Programmable of the PL1877A s operating parameters can be programmed using IAPS Software This makes installing and setting up the PL1877A easy 04 15 8 Installation TELEPHONE LINE Typical PL1877A Installation The PL1877A can be placed on any flat level surface desk top that provides the operator with full visibility of all front panel controls and indicators It can also be rack mounted using the optional rack mount kit FCC Interference Warnings The FCC requires that manuals pertaining to Class A and Class B computing devices contain warnings about possible interference with local and residential radio and TV reception Please read these warnings and all safety information in the Foreword of this manual Equipment Required e RF service monitor e XAC0004A Programming Cable e Radio interface cable e PC with Windows95 or higher not Windows NT e AC voltmeter with dB ranges for e IAPS Programming Software included on measuring audio levels XAC4000B Programming Bundle Flash Drive e 1 Phillips screwdriver e 1 8 inch flat blade screwdriver Cable Installation Safety Considerations Interconnecting communications and Class 2 dc power cables should be separated from electrical light or other Class 1 circuits by at least 2 inches The exception is where Class 1 wiring or power circuits are run in raceway or are metal sheathed or metal clad
29. mobile to 30 seconds This allows the mobile to maintain control of a simplex radio patch Its use is required by Federal rules in most cases Consult applicable regulations before disabling It is applicable only when Mode of Operation is Enhanced VOX The default for the Enhanced VOX Transmit Timer is enabled Enhanced VOX Receive Recovery Delay Determines dead time between station transmit and receive mode This is necessary to allow time for the station receiver to fully recover after PTT is released the landline user pauses An insufficient delay time may cause false carrier detects to the interconnect It is applicable only when Mode of Operation is Enhanced VOX Enhanced VOX Delay The time telephone line audio is delayed before being presented at the TX audio port Delay time may be set to the minimum time that will ensure no loss of syllables due to transmitter turn on times and or delays Normally it is set to 500 ms It is applicable only when Mode of Operation is Enhanced VOX The valid range is 0 500 ms VOX Detection Threshold Alters the Enhanced VOX detection threshold The threshold is the minimum level required to activate the transmitter PTT High is 30 dBm low is 45 dBm It is applicable only when Mode of Operation is Enhanced VOX 10 dB Extra Gain for Phone Audio This can be selected to boost the phone audio level if necessary Applicable only when Mode of Operation is Enhanced VOX 29 04 15 PC Progr
30. none of the multi digit access prefixes being capable of bypassing the restriction on manual dialing NOTE As a general rule a multi digit access prefix can only bypass restrictions that are definitely bypassed by the security code Parameters 527 529 are used to configure the security code to bypass restrictions e The structure of parameter 527 exactly matches the structure of parameters 515 518 521 and 524 e The structure of parameter 528 exactly matches the structure of parameters 516 519 522 and 525 e The structure of parameter 529 exactly matches the structure of parameters 517 520 523 and 526 Multi Digit Release The multi digit release feature requires a DTMF suffix following the or release command If the PL1877A does not receive this suffix it will not respond to the release command This feature is used when it is desirable to allow the mobile user to dial a DTMF without causing phone line disconnection NOTE Consider the multi digit release sequence XYZ where XYZ is the 3 digit multi digit release suffix to the release command The PL1877A recognizes XYZ as a multi digit release suffix only if the time between individual digits represented by the in 7 is no greater than 1 second Also the duration of each digit must be no greater than 3 5 seconds The multi digit release suffix hereafter referred to as the general multi digit release suffix is defined by parameters 410 415 It ca
31. on the PL deck 3 TXPL Strip Locate the orange black wire running from J701 pin 10 to filter bracket terminal 10 Cut this wire off at the filter bracket and install a male pin on the free end Insert the pin into J801 pin 2 position This is a spare wire that terminates at J601 on the transmitter chassis in the Flexar housing Run another orange black wire from J602 pin 10 position may already be present to the cathode side of CR120 on the exciter chassis 4 TX Audio Run a blue white wire from the J801 pin 4 position to the previously vacated filter bracket terminal 10 On the Repeater control board connect a blue white lead in series with a 1M resistor from J20 pin 10 clipping the resistor leads to 1 2 inch and soldering the resistor to U2 pin 9 Use heat shrink or other spaghetti to insulate the wire end of the resistor 5 PTT Run a white wire from the J801 pin 5 position to terminal 8 of the filter bracket 6 Install male pins on the PL1877A P1 radio cable and insert them into a plug body not supplied Motorola P N 15 80315A40 as follows color renun Pug Pinno me mam Rea ornoa ooma 05 _ aetema jam 5 This plug mates with J801 If the PL1877A is to be dc powered connect the red lead in the dc power cable to P801 pin 7 and the black lead to P801 pin 6 connect the other end of the dc power cable into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If the optional ac
32. or are permanently separated from the conductors of the other circuitry by a continuous and firmly fixed nonconductor such as porcelain tubes or flexible tubing in addition to the insulation on the wire Communications cables and in building wiring should be listed and marked for the purpose according to NEC Article 800 Telephone Line Lightning and Over voltage Protection The PL1877A has an over current phone line fuse that protects against occasional extreme fault conditions that may get past the primary protectors An example of such a fault condition is a power line cross For maximum surge and lightning protection building primary and over voltage protectors should be installed at the point where the telephone lines enter the radio equipment building Primary protectors are usually required by local codes and should be provided by your leased line provider 9 04 15 Installation PL1877A Microprocessor Radio Telephone Interconnect Rack Mount Installation The optional Model XAC0005A Rack Mount Kit for the PL1877A is available from GAI Tronics It includes a 19 inch rack mounting bracket and other parts that can be used to mount one or two PL1877A units or tone dc adapter into a standard 19 inch rack The kit includes hardware and complete mounting instructions Installation Considerations The electrical hook up of the PL1877A requires these basic connections the ground wire radio interface cable and the power supply cable WARN
33. reset the inactivity timer because the land line party is talking Therefore it is recommended that the mobile inactivity timer parameter 122 be set to 3 minutes of mobile inactivity in Enhanced VOX simplex systems CON TROL STATION REVERSE BURST INHIBIT Je MAYEZ 08 REV BURS BU MALE CHASSIS STUD ORANGE BLACK 2 REVERSE BURST RETURN CIRCUIT RJ14C w T 8 PL STRIPPING BLUE WHITE TELEPHONE LINE Mo AC POWER CABLE DC POWER CABLE MULTICONDUCTOR INTERFACE SUPPLIED LIGHTNING PROTECTION LOGIC RETURN NOTE CABLES SLIDE OUT OF MRTI CHASSIS SLOTS FOR SERVICING Intercabling Diagram Maxar Moxy Control Station to PL1877A MAXAR 80 Bases MAXAR 80 Bases are characterized by two large power pins in the cable connector pins A and B Install the following modifications additions to the base station using the supplied female pins where necessary 1 RX Detector Audio Run a wire from U10 pin 6 to J601 6 wire for meter 2 may be in pin 13 of J601 and possibly could be rerouted and used for this function 2 TX PL Disable Run a wire from the PL DPL code disable pin CD or TD 0 the PL DPL deck to J601 3 3 PL Detect Tone PL reed type TRN6177C and similar Locate and remove the soldered in JU401 and install a 100k 4 W resistor in its p
34. restriction on manual mobile dialing restriction 4 and the restriction on dialing phone numbers beginning with 0 restriction 7 parameters 515 517 are programmed as follows 515 10 hexadecimal 10 bit 4 1 516 8 bit 3 1 517 0 1941 is treated as multi digit access prefix 2 Therefore it is programmed into parameters 368 373 368 1 369 9 370 4 371 1 372 FF 373 FF In order to bypass the restriction on autodialing restriction 6 parameters 518 520 are programmed as follows 518 4 bit2 1 519 0 520 0 If the security code suffix was enabled and a mobile user was acquainted with it the security code could be transmitted to allow autodialing manual dialing AND bypassing the restriction on telephone numbers starting with 0 Configuring the Security Code to Bypass Restrictions As indicated in the previous table the multi digit access prefixes have the potential to bypass 18 programmed restrictions The security code bypasses all 18 of these restrictions It may not be desirable to allow all 18 of these restrictions to be bypassed by the security code It is possible to configure the security code to bypass only certain restrictions However doing so limits the number of restrictions that can be bypassed by a single multi digit access prefix For example you may require that the security code cannot bypass the restriction on manual dialing This is possible but to require this also results in
35. the auto dial memory 1 With the PL1877A idle dial 0 from the mobile DTMF keypad Three mid frequency beeps are generated indicating that the PL1877A is awaiting entry of a valid auto dial location number 1 through 25 followed by If an invalid auto dial location number is entered 6 disconnect beeps are generated and the auto dial programming mode is exited 2 Upon receipt of following the location number an auto dial location is opened Enter the desired phone number You can program pauses between telephone number digits by entering DTMF at the desired point For example if you want to dial 9 pause 948 1490 enter 9 9481490 This is useful when you are dialing out of a PABX and must wait for the PSTN external dial tone before continuing dialing If the PL1877A is programmed for pulse dialing you can dial several pulse auto dial digits then pause and dial the remaining digits in DTMF This is called a revert since the PL1877A reverts from pulse to DTMF dialing To place a revert in an auto dial number enter a DTMF at the desired point For example if you want the PL1877A to dial 9 revert 948 1490 where 9 is dialed in pulse and 948 1490m DTMF enter 9229481490 NOTE Only one revert can be in an auto dial telephone number reverts after first one cause the PL1877A to pause in dialing Two adjacent pauses or reverts cannot be entered in an auto dial telephone number because the and commands cause
36. these units with no problem if the transmit button is pressed a second before the Touch Code signaling commences Then signaling may be entered at a normal rate Enhanced VOX Simplex Mode In this mode the patch is installed either on your base station or on a wire line remote control located away from the radio base station The feature unique to this mode of operation is the cross lock out between you the mobile radio party and the telephone line party This means that whoever begins speaking first maintains control of the conversation until they are finished speaking For example after the first party finishes speaking the second party may speak and maintain control of the conversation until they are finished speaking Then the first party may speak and maintain control locking out the second party from being heard until speaking is finished The patch recognizes signaling tones to be different from speech and interrupts such tones as dial tone busy tone etc for mobile control Typical operation is as follows 63 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect Press the button on your encoder After a short delay you should hear the dial tone for a duration of about 2 seconds When it drops out enter the telephone number You should follow the telephone number with another This second tells the patch that you are finished with telephone line signaling If you omit this the patch ass
37. time the PL1877A is accessed Each time the wildcard release suffix or prefix must exactly match the wildcard access prefix 04 15 54 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Programming Wildcard Access Release The wildcard access prefixes can be programmed to be from to 6 digits long However they cannot be of variable lengths if this feature is programmed for 3 digit wildcard access prefixes then all wildcard access prefixes and corresponding wildcard release suffixes prefixes must only be three digits long Also some of the digits can be set to specific values For example you can program the PL1877A such that all wildcard prefixes are in the form of x3x where x is a wildcard digit chosen by the mobile user In this case the user can access the PL1877A only with a 3 digit access prefix in which the second digit is 3 Suppose you have decided that wildcard access codes will be four digits long and take the form of 3xx2 where the x represents wildcard digits selected by the mobile user Program required values into the Wildcard Access Release Code using s where you want the wildcard digits 3 2 in this example Suppose you decide you don t want any fixed digits in the wildcard prefix In the four digit example above you would enter 55 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Wildcard Access Release with Paging This feature can provide added
38. to enter adjacent pauses and reverts You can cause the PL1877A to revert from pulse to DTMF dialing when manually dialing telephone numbers that is when not using the auto dial feature To accomplish this program the PL1877A for pulse dialing parameter 31 1 and DTMF regeneration subsequent to receipt of a parameter 36 1 parameter 37 1 Then when dialing a telephone number enter a where you wish the revert to occur For example if you wanted to dial 9 revert 948 1490 you would dial 9 Then after pausing the required amount of time you would dial 948 1490 While you are entering the auto dial telephone number pressing causes the PL1877A to key the transmitter and repeat the input digits received so far This is useful in determining that you have not made any mistakes while entering the number 04 15 82 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification 4 Ifyou wish to abandon modification of this phone number without saving any of your input you can enter or Hf causes the PL1877A to abandon your input transmit three beeps and wait for you to enter a new auto dial location number followed by a This command is useful if you have made a mistake and wish to start over causes the PL1877A to abandon your input and exit the auto dial programming mode You can enter from any point in the auto dial programming mode 5 When you have entered the desired telephone number a
39. transformer is to used install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A 151 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect Earth ground Run the supplied 12 black ground wire from the PL1877A ground terminal to the repeater chassis frame This wire must be as short as practical not coiled and connected securely to the chassis Required Parameter Settings Using the Parameter Modification Procedure section of this manual set the following parameters Parameter 0 de emphasis 0 No PL detect input required 1 PL detect input required 7 1 PL detect input is active high If parameter 6 0 parameter 7 don t care 5 ore 0 active low PTT sense input All other parameters are programmed as applicable to system requirements Refer to the Parameter Modification Procedure on page 77 and then the Level Setting section on page 17 of this manual FLEXAR REPEATER HOUSING RECEIVER 5001 RX AUDIO CHASSIS PL STRIP 3LUE WHITE WHITE C POWER CAB MULTICONDUCTOR INTERFACE SUPP PL DETECT LIGHTNING PROTECTION LOGIC RETURN 7 lee pa s o S SLIDE OUT OF MRTI S FOR SERVICING
40. user ID entry TPL Byte 3 designates the TPL frequency to be used in signaling this user Determine this value from Table 8 on page 135 and enter it in hexadecimal For example a value of 4 designates TPL frequency XB DPL Byte 3 designates the DPL code to be used in signaling this user Determine this value from Table 9 on page 136 and enter it in hexadecimal For example a value of A designates DPL code 071 Byte 4 must be set to 1 if this DPL code is to be inverted 125 04 15 Features Selective Signaling Types DTMF Parameter 1090 Function PL1877A Microprocessor Radio Telephone Interconnect DTMF outpulse timing The number of 50 ms periods in the DTMF digit inter digit time Valid range 0 8 Single Mode DTMF Paging 1131 1139 DTMF paging preamble Valid digit range 0 F 2 Tone Sequential Parameter 1091 2 Tone paging A tone length The number of 0 5 second increments in duration of the Function first tone of a 2 Tone sequence Valid Range 0 8 0 5 to 4 5 seconds 1092 2 Tone paging B tone length The number of 0 5 second increments in duration of the first tone of a 2 Tone sequence Valid Range 0 8 0 5 to 4 5 seconds 2 Tone Single 1140 1142 04 15 Mode Paging Selected code plan for single mode 2 Tone paging Valid range is 00 24 decimal Determine the code plan number from the table below Then enter the number in this p
41. 0 800 Hz combination 70 Enable or disable enhanced VOX 0 Disable 83 1 Enable 71 Enable or disable redial feature 0 Disable 99 1 Enable Default 0 72 Determines whether VOX detection 0 more sensitive 83 threshold is more or less sensitive threshold 45 dBm 1 less sensitive threshold 30 dBm 73 Determines whether phone audio level for 0 High 83 enhanced VOX option is high or low 1 Low 74 Switches notch filter Off or On 0 Off 83 1 On 121 Mobile audio cut through delay Valid range 0 9 89 Default 5 122 Mobile inactivity control Valid range 0 14 95 Default 0 04 15 108 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Refer to Section on Description Control Digits Page 123 Determines the number of rings that the Valid range 1 9 88 PL1877A must receive before generating Default 1 ring signaling to the mobile 124 Determines the function of programmable 0 GPI 1 unused 86 GPI 1 pin P1 14 1 Aux carrier detect input 125 Determines the function of programmable 0 GPI 2 unused 86 GPI 2 pin P1 16 1 Aux carrier detect input 126 Direct access duration the number of 5 Valid range 0 8 100 second periods in the direct access time Default 0 127 Enhanced VOX receive recovery delay Valid range 0 8 84 the number of 50 ms periods in the delay between transmitting and receiving enhanced VOX mode 128 The ti
42. 00 15 digits are allowed with valid ranges 0 9 e For Plectron four digits are allowed The first two digits cannot be larger than 35 The others have a valid range 0 9 e For 5 Tone five digits are allowed if Group Calls is disabled six digits if Group Calls is enabled with the sixth digit as either 0 or 1 The valid range for each digit is 0 9 NOTE Editable only if Paging Format is not set to either CTCSS or CDCSS ID Select a CTCSS or CDCSS tone code Invert Capcode Allows the user to specify if the CDCSS capcode will be inverted NOTE Editable only if Paging Format is set to CDCSS Group Calls Dual Addressing If either 2 Tone Group calls or 5 Tone Dual Addressing is enabled it can nevertheless be allowed for this user ID by marking this field Direct Access If land line attendant direct access is disabled it can nevertheless be enabled after paging this user ID by marking this field CTCSS Stripping on Paging If CTCSS is to be stripped during paging only for certain user IDs enable CTCSS stripping here for those IDs Also disable CTCSS Stripping during Paging under the General Paging menu CTCSS Stripping on Direct Access If CTCSS is to be stripped during direct access only after paging certain users enable CTCSS stripping here for those IDs Also disable CTCSS Stripping during Direct Access under the Direct Access Parameters menu 49 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect
43. 11 Auto dial location 12 See appropriate section 4930 4931 Auto dial location 13 See appropriate section 4950 4951 Auto dial location 14 See appropriate section 4970 115 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Para Refer to meter Section on No Description Control Digits 4971 Auto dial location 15 See appropriate section 4990 4991 Auto dial location 16 See appropriate section 5010 5011 Auto dial location 17 See appropriate section 5030 5031 Auto dial location 18 See appropriate section 5050 5051 Auto dial location 19 See appropriate section 5070 5071 Auto dial location 720 See appropriate section 5090 5091 Auto dial location 721 See appropriate section 5110 5 11 Auto dial location 722 See appropriate section 5130 5131 Auto dial location 23 See appropriate section 5150 5151 Auto dial location 24 See appropriate section 5170 5 71 Auto dial location 25 See appropriate section 5190 04 15 116 Features Second Line Option The PL1877A Second Line Option Kit No XTI0001A provides mobile users with the ability to answer and originate calls on a second phone line Note however that conferencing of calls between lines 1 and 21s not supported At any given time the PL1877A operates on whichever line is currently selected When the PL1877A is idle it defaults to line 1 being the selected line The PL1877A automa
44. 13 8 V b Note meter 2 quadrature output using a high impedance DVM may be necessary to measure on the radio circuit board if the meter 2 wire was used in the PL1877A installation c Dekey the radio d Inject a 10 7 MHz signal into the I F of the MAXAR radio e Adjust the quadrature coil L18 or L23 for a meter 2 reading as measured in step b 0 1 V dc This procedure reduces or eliminates the pulse to the PL DPL deck caused by the difference of quadrature voltage between transmitting and receiving an on frequency signal Note that a mobile transmitting off frequency can cause the same problem 147 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect 2 Repeater transmit turn off delay in repeater control station installations When the PL1877A is being installed in a control station controlling a repeater it is necessary to ensure that the repeater does not stay on the air after the control station unkeys If the PL1877A detects carrier and PL DPL if applicable after unkeying the control station it is erroneously seen as a mobile transmission In systems that require PL DPL and retransmit not generate no problem is encountered with the PL DPL signal such as most community repeaters since carrier only is not seen as a system mobile Some repeater stations have a jumper for turn off delay but many delay turn off more than a second even though the 0 position is selected In t
45. 1877A Microprocessor Telephone Interconnnect e Flash signal Allows the mobile user to regain an in house dial tone without releasing and re accessing the patch call transfer etc Applicable on certain PBX equipment e Programmable Connect command The command sequence required for connection to the patch can be determined by parameter selection e Enhanced VOX mode allows the PL1877A to operate on control station and base station that require VOX operation In this mode the PL1877A keys the radio on the presence of audio on the telephone line The telephone audio is delayed while the radio system is establishing the channel to avoid clipping of syllables e Selective Signaling Paging The PL1877A is equipped with the capability for analog paging Supported paging formats are 2 Tone DTMF Plectron CTCSS CDCSS 2805 1500 5 Tone and custom 2 Tone e Last number redial The last number dialed may be redialed by entering the command sequence This feature may also be disabled by parameter selection e Over beep beep is sounded when the mobile carrier is lost This feature may be enabled or disabled by parameter selection 7 04 15 Description PL1877A Microprocessor Radio Telephone Interconnect e Time out warning If the line has been inactive for a certain period of time a period to be set by parameter selection the unit sends ticks prior to disconnection to alert the user These ticks can be en
46. 7A Microprocessor Radio Telephone Interconnect Schematics J5 gele 29 C53 R44 ENT c58 R43 6 eee es CIDE DHF Je Mes g d uie 4 3 Ul US i 8 il E mae To La BC 2 115 18 E E Sep 1 026 HE Ai 3 SS BE gE cz Tg PCIE Component Layout for MDP Circuit Board 163 Main Circuit Board PL1877A Microprocessor Radio Telephone Interconnect 164 Definitions and Acronyms Carrier squelch Capcode The identifying number on the outside of the radio pager It is related to the tone or digital code that gives the address and other information about this particular pager Detection of a valid mobile signal is based on loss squelch of random channel noise Squelch Continuous Tone Controlled Subaudible System A means of grouping users of a common radio channel Subaudible tones are transmitted with audio a particular radio s speaker or the speakers of a group of radios will unmute to broadcast a transmission only if the associated subaudible tone identifies it as belonging to the radio s user group CDCSS Continuous Digital Coded Squelch System A system analogous to CTCSS but using low speed digital signaling instead of subaudible tones Tests to determine if any hardware or software problems exist C 5 Dual Tone Multi Frequency is a method used by the telephone system to communicate the keys pressed when dialing Pressing a key on the phone s keypad
47. Commands or Access telephone line if set by parameters Multi digit access code n 1 6 digits O n Executive override code n 1 6 digits overrides a variety of programmed restrictions Enter mobile DTMF programming mode n remote parameter access code 1 6 digits Auto dial Selective Signaling Option Revertive mobile to mobile call where n is the capcode or user ID of the target mobile 2nd Line Option Select line 2 for outbound call origination Select line 1 for outbound call origination if line 2 is currently selected 65 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect Landline Originated Calls The landline telephone originated call proceeds in two different manners depending upon installed options If special information access code selective signaling code etc is required to initiate mobile signaling refer to the applicable section in this manual for operational details When the landline caller dials the phone patch the unit detects ringing on its line as indicated by the flashing CONN LED After ensuring that the channel is available not receiving carrier and not sensing PTT the patch transmits one 3 second ring tone To answer the call the mobile operator presses on the encoder after the ring tone ceases The patch accesses the telephone line and conversation may proceed as outlined previously When the conversation is over the mobile or teleph
48. DPL deck caused by the difference of quadrature voltage between transmitting and receiving an on frequency signal Note that a mobile transmitting off frequency can cause the same problem 2 Repeater transmit turn off delay in repeater control station installations When the PL1877A is being installed in a control station controlling a repeater it is necessary to ensure that the repeater does not stay on the air after the control station unkeys If the PL1877A detects carrier and PL DPL if applicable after unkeying the control station it erroneously is seen as a mobile transmission In systems that require PL DPL and retransmit not generate no problem is encountered with the PL DPL signal such as most community repeaters since carrier only is not seen as a system mobile Some repeater stations have a jumper for turn off delay but many delay turn off more than a second even though the 0 position is selected In these cases reducing the timing capacitor to a much smaller value produces the required results for example changing C11 on a MICOR repeater TLN4662A squelch gate module from 68 uF to 4 7 uF 04 15 144 PL1877A Microprocessor Radio Telephone Interconnect PL1877A Radio Installation 3 60 Second Mobile Inactivity Timer In the enhanced VOX simplex mode the land line caller cannot be interrupted by the mobile until the 30 second time out Therefore it 1s possible for the mobile to hear the warning ticks and not be able to
49. ERNAL DIAGNOSTICS rete bar re etae see these EE E EEn EEr SS E Er aos 13 Test I Softpot Adjustment eii dede et ge er eee Hie ddeee pde iste bite 13 Test 2 DTMF Decode Thresholds 13 Test 3 Mobile to Phone Audio Path esses eese nnne enne 13 Test 4 Mobile to Phone Path Zan sese ente te resa sese sten tenen nene ene 14 Test 5 Mobile to Phone Audio Path sese essent ente 14 Test 6 Non accessed Patch Functions 14 Test 7 Active Line Swap ate meg ie Ov vas babes Dove phun ube RE rede aes 15 Testo Network Tone D codiltg i a e URDU te 15 Testo HCLH DSP Communications eei av OS as av ae ER Oo a teneis 16 Test 10 HC11 DSP 16 Test TL I FX A dio POort anuo eite etin a eae aes 16 Test 12 RS 232 DidgnoStiC s iiis ata tt PER RE EHE EHE RU rt ee 16 Test 13 DTMF Decode on Un accessed Phone Line eee essent 16 EBVELSELTING qo Rr e AA boe tbe UE re E OE E UE re REI eren 17 Transmitter Audio Level 17 Carrier Detect Adjustments ssiri id de puce ede
50. G POSITIVE POLARITY INDICATOR NEGATIVE POLARITY INDICATOR 04 15 14 PL1877A Microprocessor Radio Telephone Interconnect Installation Off Hook Status of an Attendant Phone If the LED is lit the attendant phone is off hook If the LED is not lit the attendant phone is on hook Ring Voltage If the LED is flashing ringing is present if the LED is not lit the phone line is idle Phone Line Current Polarity If the Negative Polarity Indicator is lit the current is negative Ifthe Positive Polarity Indicator is lit the current is positive If neither indicator is lit no current is being detected Ring Threshold Setting Pressing the UP button increments the ring threshold setting to a maximum of 7 Pressing the DOWN button decrements the ring threshold setting to a minimum of 0 Off hook Voltage Threshold Adjustment If parameter 163 is set to 2 you can manually adjust the PL1877A s off hook voltage threshold from 48 V to 6 V through Test 6 To accomplish this press the DOWN and PATCH ON OFF buttons simultaneously while the PL1877A is in Test 6 The PWR LED should begin flashing indicating that the PL1877A has entered the off hook adjustment The remaining LEDs display a binary representation of the voltage currently on the phone line maximum displayed voltage 51 V 1 Disconnect the PL1877A from the phone line 2 Set an external dc power supply to the maximum voltage that the PL1877A shou
51. ING Voltages hazardous to life may be present at the exposed control line terminals under certain conditions during the following procedures These voltages are also present on some component leads Care should be taken to avoid shock during installation Electrical Interface of the electrical connections to the PL1877A are made at the rear panel Power to the console is furnished through a 5 pin DIN connector The figure below shows the rear view of the PL1877A and the locations of the various connectors View of the PL1877A Back Panel with Connectors DC Power Connector Pin Chart 04 15 10 PL1877A Microprocessor Radio Telephone Interconnect Installation Ground Cable The PL1877A is designed with a high degree of protection against electro static discharge ESD power line surges and telephone line surges The protection circuitry is designed to shunt the transient current to earth ground through the GND terminal located on the back panel of the unit This terminal must be connected to a high quality earth ground in order to obtain maximum protection All equipment at a site should be bonded frame to frame with adequately sized conductor NOTE This ground should be connected through a utility entrance ground cable and the telephone entrance ground cable if different from the utility ground Lightning is essentially RF and as such does not like long leads or s
52. L DETECT SQUELCH DISABLE MULTICONDUCTOR INTERFACE SUPPLIED ex Naro UN SED NU TB1 OR TB2 LS COMPATIB S LIGHTNING PROTECTION LOGIC RETURN 12 BLACK SUPPLIED DS EARTH GROUND WIRE NOT SUPPLIED Intercabling Diagram for Enhanced VOX Simplex Mode Mitrek Consolette Base Station to PL1877A MAXAR and MOXY Bases The MAXAR and MOXY bases are characterized by all pins in the cable connector being the same size Install the following modifications additions to the base station using the female connector pins supplied where necessary 1 Detector Audio Run a wire from U10 pin 6 to J601 13 wire for meter 2 may be in pin 13 of J601 and possibly could be rerouted and used for this function 2 TX PL Disable Run a wire from the PL DPL code disable pin CD or TD on the PL DPL deck to J601 3 3 PL Detect Tone PL reed type TRN6177C and similar Locate and remove the soldered in JU401 and install a 100k 4 W resistor in its place NOTE There are two JU401 s shown on the board pictorial The correct one for this function is the one in series between U401 pin 13 and Q409 base This resistor allows pin 13 of U401 to swing between detectable logic levels Remove C428 and replace it with a 1 uF capacitor observing polarity Run a wire from U410 pin 13 to J601 pin 10 wire for meter 1 may be in pin 10 of J601 and possibly can be rerouted and used for this function
53. L paging advances to the next TPL tone frequency Pressing this button combination while in DPL paging will have no effect Test 12 RS 232 Diagnostic This test requires that the TX and RX pins on the RS 232 port be shorted In this test the PL1877A transmits alternating patterns of 1 s and 0 s and expects to receive the exact same patterns If the pattern received matches the pattern sent the four most significant LEDs will light If the pattern does not match the LEDs remain unlit The four least significant LEDs display the test number during this test Test 13 DTMF Decode on Un accessed Phone Line During this test phone DTMF is decoded and displayed in the five least significant LEDs 0 is displayed as 0x10 The phone line is not accessed during this test 04 15 16 PL1877A Microprocessor Radio Telephone Interconnect Installation Level Setting A service monitor or communications system analyzer is required for level setting adjustments Connect the radio s antenna connector to the communications analyzer and a 50 ohm load Set the equipment to monitor deviation at the radio s transmit frequency It is necessary to enter the diagnostic test mode for some of the level setting To enter diagnostic mode press both the UP and DOWN buttons simultaneously To step to another test once the diagnostic mode has been entered press the PATCH ON OFF button To exit press both the UP and PATCH ON OFF buttons simultaneously For mor
54. MF digits from the mobile i e non regenerated which can cause wrong numbers to be dialed Signaling Telephone Line Dialing Autodial Redial Autodial Feature Enabled Determines whether a mobile can use the Auto dial feature If disabled the mobile can only dial phone numbers manually Restrict Mobile Users to Autodial Numbers Restricts mobile users to using only the autodial feature when dialing telephone numbers This equates to placing a restriction on manual dialing telephone numbers for mobile users Mobile Modifications of Autodial Numbers Determines whether mobiles are allowed to modify autodial numbers Redial May be enabled or disabled The last number dialed is automatically re dialed if enabled when the mobile accesses the interconnect with a command instead of a single Any applicable multi digit prefix must still be entered from the mobile Autodial Number Pause Time Sets the duration of the pause in dialing that occurs whenever a pause character is encountered in an autodial number 04 15 40 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Signaling Telephone Line Dialing Auto dial Numbers Toll Restrict Prefixes Dialing Method Autodial Parameters Autodial Numbers Toll Restriction Parameters m 18882549155 as mz wo 19019474000 mo ms 16107771374 an mo na 19004321212 m2 20 There are 25 autodial numbers available Each number is allowed a
55. Parameters 25 Installation Telephone Line 5 esee eee enne entente 27 BASIC OPERATION s 16 Ie 00s nosed sevens SEE ERREUR SERERE RM HER SEE ERE T HR Fa I DS 28 Basic Operation Mode Selection y RU Re ER 28 Basic Operation Operational Settings esses rennen nete tene 30 Basic Operation Programming Privileges eese 31 ACCESS RELEASE SETTINGS inneren piter eH EO Fe e supa FR eti tero erri i rr ridet rines 32 Access Release Mobile Initiated Mobile Access Release eese eene neret 32 Access Release Mobile Initiated Mobile Access Release Security Code Overrides esses 34 Access Release Mobile Initiated Multi Digit Prefixes essent nene rennen 35 Access Release Mobile Initiated Multi Digit Release Codes eene 35 Access Release Telephone Initiated Direct Access eene nennen nennen renes rennen 35 Access Release Telephone Initiated Misc Access Release esee eerte nenne enne 37 Access Release Global Access Release iirinn essipessi tissosa otses 38 SIGNALING ORI D RR ERE RO PO EH p erri endi Pareto ese Pere i 39 Signaling Telephone Line Dialing Dialing Method eene nennen 39 Signaling Telephone Line Dialing Au
56. Pub 43004 019D A GAI TRONICS CORPORATION A HUBBELL COMPANY PL1877A MRTI 2000 Microprocessor Radio Telephone Interconnect Installation and Service Manual y TRONICS lt GAI TH RTI 2000 pL Conn TX C Y PROGRAM BUS GAI Tronics Corporation 400 E Wyomissing Ave Mohnton PA 19540 USA 610 777 1374 800 492 1212 Fax 610 796 5954 VISIT WWW GAI TRONICS COM FOR PRODUCT LITERATURE AND MANUALS CONFIDENTIALITY NOTICE This manual is provided solely as an operational installation and maintenance guide and contains sensitive business and technical information that is confidential and proprietary to GAI Tronics GAI Tronics retains all intellectual property and other rights in or to the information contained herein and such information may only be used in connection with the operation of your GAI Tronics product or system This manual may not be disclosed in any form in whole or in part directly or indirectly to any third party COMPUTER SOFTWARE COPYRIGHTS This product contains copyrighted computer programs stored in semiconductor memory These programs are copyrighted by GAI Tronics Corporation and may not be reproduced in any form without express written permission from GAI Tronics WARRANTY GAI Tronics warrants for a period of one 1 year from the date of shipment that any GAI Tronics equipment supplied hereunder shall be free of defects in material and workmanship shall comply with the then curre
57. RE E EEEE ERREUR EUR EUR PRECES ERREUR E IRE EUN REPRE FRENTE 2 ORDERING REPEACEMENT PARTS brio e o rH RE NERO HB RUD En Ese RR PME 2 SERVICE AND REPAIR c 2 SAFE HANDLING OF CMOS INTEGRATED CIRCUIT DEVICES esee nennen eene 3 MODEL CHART cerro eR e Ug Er E NY e 4 SPECIFICATION S sits tU RE eee site aedes UR ilte Reese xod eee bee ed ie tani 6 DESCRIPTION D 7 GENERAL DESCRIPTION teles t Ete ERE S UE Se irpo E REN SD ERAS speeds A 7 FEATURES OF THE PL1877A MICROPROCESSOR TELEPHONE INTERCONNNECT esee eene nennen 7 INSTALLATION POP 9 FCC Interference Warnings uscire RE EY p eG e ER SIR o eee ect riiv e qe 9 Egi pment Required i d ree me epe iem od d eto eese nti ide die ene 9 Cable Installation Safety Considerations eee esee eese enne enne tnnt tenente trennen trennen 9 Telephone Line Lightning and Over voltage Protection eese nennen nennen 9 Rack Mount Installation e eit etr He teretes eto eee teer 10 Installation Consideratiohs ia a ter ER RON IH HH IH II 10 Electrical Interface ieren enk A SME A EKFAT E 10 Power Supply ee E td PER EDS RE BOE a eE Dee AE p eI ia RAE 11 PT Radio Gonm ctoF IIR mee aai iet crai eg 12 INT
58. Start menu At the prompt type x Setup exe where X represents the drive letter that is associated with your flash drive A Card Suite icon should appear on the desktop display after successful installation 19 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect IAPS Programming To start the IAPS program click on the IAPS Icon This screen appears ITIG000 IAPS Untitled Jof x File Input Output Service Adjust View Help For Help press F1 Editing Screens The status bar on the bottom of the window gives instructions for setting parameters Editing some parameters depends on the state of another parameter Most screens have tabs for selecting each set of parameters e Select tabs by clicking on the tab key e To select Next Page press CTRL TAB e To select Previous Page press CTRL SHIFT TAB 04 15 20 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Input Output Input Output I O Settings When the main menu screen appears click on Input Output This screen appears ITI6000 IAPS Untitled Input Output Click on the I O Settings Input Output 21 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Serial Port Setup The PL1877A can be programmed from the Local Port or the Remote Port This parameter must be entered to begin programming e Ifthe PL1877A is installed in the same location as the c
59. TO DIAL NUMBERS 82 INSTALLATION PARAMETERS reip eth de ttr EG Qe e Ene E CR DR Hee eed RES 83 Radio Interface iei rinde er P ert ie re Ur oe Re ERE Ee UR DERE EE 63 Telephone Inter dce tee ert etre distent e ii nee tte ti a eps de exte ettet 68 Parameter Programming Methods ae ei ere iieri seeds seve e chatess ee ost oae 90 MOBIEE ACCESS METHODS fii sisters tet tl ete USE UO RR TRU P D HESS CR PII e IS eI e bees 91 Mobile Access 9 Multizdigit ACCESS cis i A SU ee RG A Ae ee 91 Wildcard ACCESS so sae oae ee Netto bep mae eedem ihe BR EARS 9 Triple Key ACCES i sete odes d e eed Ld ge RT UE ete 92 MANUAL REEBASE METHODS E E rie e FERREA EFIE RU IR REF ERREUR ER NA ERE 92 Mobile Originated Release t tr EUH Uer tr p etis 92 Telephone Originated Release eot I p HU EET RU 93 AUTOMATIC RELEASE METHODS cie to E RUE er ege ag ea dt e E o ER HERREN TI edi 93 Mobile Originated estet n be DH ERE tte oe et esie Reds 93 Telephone Originated Call iU Ren PRU aen eq estem edi te 93 GENERAL CALL CHARACTERISTICS E En 94 VITA ERE 94 Semi private Operation ae ere ee ge e re HS RE RE Ee S UR eret Er EP dens 95 SELECTABLE FEATURES PEU NE En ECRIRE ER 95 Station Id
60. a second to enable the patch to detect your transmitter signal You should follow the telephone number with another This second tells the patch that you are finished with telephone line signaling If you omit this the patch assumes you are finished 1 to 10 programmable seconds after the last digit has been entered and then opens the voice path to the telephone line When the called party answers you may converse in the same manner as with the base station operator You may interrupt the telephone party but they cannot interrupt you and be heard Each time you push your microphone button you should pause for about a half second before you begin speaking in order to allow the patch to detect your transmitter signal This eliminates lost words to the telephone line party When you release your microphone button the telephone party hears a short beep to indicate that they may speak and be heard by you At the end of the conversation push the button on your encoder stretching the duration for about a second This disconnects the telephone line and the patch confirms disconnect back to you with a series of short beeps Optional control signaling should be handled in the same manner to the signal search mode by always stretching the first control digit in order to be recognized by the phone patch Many hand held portable radios are equipped with Touch Code encoders that only put out a short burst of Touch Code signaling The patch recognizes
61. abled or disabled e Mobile call origination restrictions Calls originating from mobile sources can be permitted prohibited or restricted to specific features e Mobile signaling Ring signaling to mobiles may be sent to begin on any of the first 9 rings Setting the patch to delay mobile ring signaling by a certain number of rings allows an attendant to answer the call on a line sharing telephone set before mobiles are alerted e Mobile inactivity control If after a conversation the interconnect determines the mobile has been inactive for a set period of time and the release code has not been sent the line releases automatically The inactivity time 15 set by parameter programming e Telephone line origination restrictions Calls originating from the switched network telephone lines can be permitted or prohibited Toll long distance restriction The PL1877A disconnects when 1 0 9 or any of various prefixes as programmed is entered as the first digit s of the telephone number e Programmable telephone line dialing method Either Touch Codes or dial pulses can be sent to the land line e Attendant control An attendant telephone sharing the same telephone line with the PL1877A can initiate or forward calls to the mobile users via a Touch Code equipped line sharing telephone set by dialing the attendant access code e Patch telephone line busy signal When a mobile user attempts to access the p
62. ables 5 Tone Paging Digits If less than five or six if Dual Addressing 1s enabled digits are required as input from the land line attendant mobile user the remaining digits are supplied here For example if one digit were required from the telephone user the first four or five digits would be taken from this field This is not applicable to multi mode paging Six digits are allowed if 5 Tone Dual Addressing is enabled five if it is not If 5 Tone Dual Addressing is enabled the sixth digit must either be a 0 or a 1 04 15 48 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Paging Paging Format Multi Mode Paging Table The top portion of the screen allows modification of the Multi Mode Paging table with up to 100 entries Select the entry to modify from among Paging Table Entries Pressing the Edit button selects that entry and its settings appear in the lower portion of the screen Paging Format Allows selection of the type of paging for the corresponding user ID Codeplan Preamble Allows the user to select a codeplan for 2 Tone paging or a preamble tone for 5 Tone paging Capcode Allows the user to enter the capcode for the selected signaling type The number of capcode digits depends on the selected signaling type All the capcode digits must be entered For 2 Tone three digits are allowed with valid range of 0 9 e For DTMF 15 digits are allowed with valid ranges 0 9 e For 2805 and 15
63. access duration can be extended to the normal overall access duration by e Programming the PL1877A to extend the direct access duration if mobile carrier is detected or e Requiring reception of a wildcard access code that includes the paged mobile s capcode or user ID digits For example suppose the PL1877A is operating in single mode paging and has paged a mobile with a 2 tone capcode of 023 The telephone user has been granted direct channel access If the mobile enters a wildcard access code that includes some or all of the digits 0 2 or 3 the time allotted for direct access is extended to the overall access duration Suppose the PL1877A is operating in multi mode paging and has just paged a mobile with a user ID of 56 The telephone user has been granted direct channel access If the mobile user enters a wildcard access code that includes the digits 5 and 6 the time allotted for direct access is extended to the overall access duration 57 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Programming the Wildcard Code for use with Paging If you wish to allow only the paged mobile user to answer a page without direct access restrict mobile access to multi digit access prefix users Also disable all standard multi digit access prefixes Determine how many digits from 1 through 6 you want in the wildcard access prefix Determine how the capcode digits or user ID will be encoded in the prefix For exa
64. access or selective signaling input 1 Default 0 Don t require access command from attendant user before allowing direct channel access or selective signaling input 0 Require access command from attendant user before allowing direct channel access or selective signaling input 1 Default 0 Prefix to land line access command Valid range 0 D unused digits must be programmed to F To completely disable the prefix requires programming all digits to SF The landline user must enter this code as a prefix to the command before being granted direct channel access or selective signaling privileges Prefix to attendant access command Valid range 0 D unused digits must be programmed to F To completely disable the prefix requires programming all digits to F The attendant user must enter this code as a prefix to the command before being granted direct channel access or selective signaling privileges 101 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Emergency Call Direct Access 24 Disable emergency call direct access 0 Enable emergency call direct access 1 Default 0 With this feature enabled a caller or attendant that has dialed into the patch and has been answered by the patch and is waiting channel busy another call no mobile answer etc can declare an emergency and immediately be connected to the radio by sending The patch retur
65. ally up to two numbers or prefixes of up to nine digits each may be specifically allowed even though they contain a restricted prefix such as 1411 for information etc One other number or prefix of up to four digits may be specifically allowed When a number is determined to be restricted and not stored as an allowed number the patch disconnects the phone line For all the remaining parameters of this section unused digits must be filled with FF hexadecimal FF To completely disable an entry program all its digits to FF 446 449 Toll restrict prefix 1 Valid range 0 D 1 4 digits 500 Maximum phone number length allowed Valid range 1 20 If this parameter is greater than 20 an entry of 20 is assumed 97 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Autodial The auto dial feature allows storage of up to nine often used telephone numbers When the selective signaling option is present an additional 16 numbers are available These numbers can be up to 20 digits each in length They are stored in the EEPROM NVRAM which ensures that the numbers are remembered even during power outages Disable auto dial feature 0 Enable auto dial feature 1 Default 0 Toll restriction does not apply to auto dial numbers 0 Toll restriction applies to auto dial numbers 1 Default 0 Restrict mobile user to using auto dial feature for dialing telephone numbers 1 Default 0 Time i
66. amberet buy done to busy detection This parameter defines the number of busy tone cycles that must be received to cause the PL1877A to disconnect during a mobile originated call If set to 0 busy tone detection is set to disabled Valid range 1 15 If this parameter is not set to 0 the actual number of busy cycles required to produce disconnection is 2 the value of this parameter Telephone Originated Call Current Supervision Don t o gt Iban Pallow plone line battery Fevelsal or dossto d sconticeiTand Hine oni 0 phone line battery reversal or loss to disconnect land line originated call 0 Allow phone line battery reversal or loss to disconnect mobile originated call 1 Default 0 93 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Dial Tone Detection 64 Disable disconnection upon detection of dial tone for a land line originated call 0 Enable disconnection upon detection of dial tone for a land line originated call 1 Default 0 General Call Characteristics Disable mobile call origination 0 Enable mobile call origination 1 Default 1 14 Disable land line call origination 0 Enable land line call origination 1 Default 1 Disable attendant call origination 0 Enable attendant call origination 1 Default 1 Call Timers 360 The length of time before disconnect that time out warning ticks are generated Valid range 0 59 sec
67. amming PL1877A Microprocessor Radio Telephone Interconnect Basic Operation Operational Settings Mobile Call Origination Enables or disables Mobile Call Origination Telephone Line Call Origination Enables or disables Land Line Call Origination Attendant Call Origination Enables or disables Attendant Origination of calls to a mobile The attendant phone must be parallel connected one that shares a common line with the interconnect Over Beep Controls the Over Beep to telephone users When enabled this beep tone occurs when the mobile de keys to let the landline party know that it is their turn to speak Mobile Go Ahead Beep Controls the mobile go ahead beep if Enhanced VOX 15 the selected mode of operation This beep tone lets the mobile user know the landline party has paused and it is the mobile user s turn to speak 04 15 30 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Basic Operation Programming Privileges Remote DTMF Parameter Modification Enables or disables the ability to modify parameter using a remote DTMF telephone or other DTMF source Modem Parameter Modification Allows or disallows modification of parameters via modem Mobile Parameter Modification Determines whether the modification of parameters from a mobile equipped with a DTMF keypad is allowed Prefix to 0 Mobile Programming Code Contains the 0 6 digit prefix to the 0 mobile command The valid r
68. amming the bypass information for each individual multi digit access prefix is a somewhat complicated affair To greatly simplify this task it is recommended that you use the PL1877A s programming software However the instructions below are provided in case you wish to use the terminal programming feature for programming this information Associated with each multi digit access prefix are three parameters that define the bypass characteristics for that prefix e The bypass characteristics for multi digit access prefix 1 are set by parameters 515 517 e The bypass characteristics for multi digit access prefix 2 are set by parameters 518 520 e bypass characteristics for multi digit access prefix 3 are set by parameters 521 523 e The bypass characteristics for multi digit access prefix 4 are set by parameters 524 526 The first bypass parameter for each access prefix that is parameters 515 518 521 and 524 is structured according to the following table First Bypass Parameter Bypasses Restriction Unused 69 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect The second bypass parameter for each access prefix that is parameters 516 519 522 and 525 is structured according to the following table Second Bypass Parameter Bypasses Restriction Unused The third bypass parameter for each access prefix that is parameters 517 520 523 a
69. ange of each digit is 0 9 A D Prefix to 0 Telephone Line Programming Code If enabled enter as a prefix to one of the land line programming commands 0 1s used for DTMF parameter programming is used for modem IAPS parameter programming Either Remote DTMF Parameter Modification or Modem Parameter Modification must be enabled in order for a code to be entered The valid range of each digit is 0 9 A D 31 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Access Release Settings File Input Output Service Adjust Installation Basic Operation 20 Signaling Paging View Help Initiated C5 E Restriction Overrides Multi Digit Prefixes Multi Digit Release Codes Telephone Initiated Global Access Release Model ITI6000 Access Release Mobile Initiated Mobile Access Release Access Command Allows selection of a Mobile Access Command The choices are or The command may be better in systems sharing a radio channel with other users who may have an interconnect on their radio system It may also help prevent accessing via pseudo DTMF character generated by certain voice characteristics Normal Release Command Allows selection of the Normal Release Command as or Mobile Access to Busy Phone Line When enabled allows mobile users to access an off hook telephone line with a command making emergency interruptions of calls in progress
70. arameter such that the 10 s digit appears in the four most significant bits and the 1 s digit appears in the four least significant bits For example for codeplan Q enter 15 hexadecimal 15 General Encode Plan 00 Code Plan B 02 Code Plan C 03 Code Plan D 04 Code Plan 05 Code Plan F 06 Code Plan G 07 Code Plan 08 Code Plan J 09 Code Plan 10 Modified General Encode Plan 00 Code Plan N 13 Code Plan P 14 Code Plan Q 15 Code Plan R 16 Code Plan S 17 Code Plan T 18 Code Plan U 19 Code Plan V 20 Code Plan w 21 Preprogrammed 2 Tone paging digits Valid digit range 0 9 126 PL1877A Microprocessor Radio Telephone Interconnect Features Plectron Parameter Function Plectron paging A tone length The number of 0 5 second increments in duration of the first tone of a 2 tone sequence Valid range 0 8 0 5 to 4 5 seconds 1093 1094 Plectron paging B tone length The number of 0 5 second increments in duration of the first tone of a 2 tone sequence Valid range 0 8 0 5 to 4 5 seconds Plectron Single Mode Paging 1143 1146 2805 Hz Preprogrammed Plectron paging digits Valid digit range 0 9 NOTE The first two digits of a Plectron capcode cannot exceed 35 Parameter Function 1095 The number of 10 ms periods in tone off time for 2805 paging Valid range 0 8 10 ms to 90 ms 2805 Hz Single Mode Paging 1147 1155
71. as been entered press the PATCH ON OFF button To exit press both the UP and PATCH ON OFF buttons simultaneously Each time a new test is selected a test timer is set to 15 minutes If this timer reaches zero the patch resets itself to idle ready for normal operation 04 15 12 PL1877A Microprocessor Radio Telephone Interconnect Installation Internal Diagnostics Test 1 TX Softpot Adjustment This test activates both the PTT and the PL strip output accesses the phone line and generates 1000 Hz to the phone line and transmitter The UP or DOWN buttons are used to adjust the TX softpot UP increases the TX level and DOWN decreases the level As the UP or DOWN button is pressed the value stored in gain stage U18 is displayed via the LEDs in binary form When the PATCH ON OFF button is pressed to exit Test 1 the TX softpot is set at the indicated TX level number The TX softpot remains at this value permanently unless it is again changed through Test 1 Test 2 DTMF Decode Thresholds Test 2 accesses the phone line and generates each of the 16 DTMF digits The tones are generated at six different levels The PL1877A decodes its own DTMF and the decoded digits are indicated on the five least significant LEDs in binary form Refer to the LED assignment diagram below The most significant LED indicates that the digit being generated has been decoded GAI TR ONICS RTI MOST SIGNIFICANT
72. asized 0 RX audio source is flat 1 Receiver Input Audio Level The input from the receiver is obtained from either a high mid or low level source Parameter 2 and jumper JU202 must be set to match the receiver audio source Refer to the following information in determining the required state of parameter 2 and jumper JU202 Audio Source Level Parameter 2 2 5 V ac In 0 5 V ac Out default 80 mV ac Out rameter Funston 10 PTT sense input is active low 0 PTT sense input is active high 1 Default 0 Signaling pretime This parameter sets the delay between activating the PTT and generating mobile signaling rings paging beeps SID etc This number is x in the following equation pretime 100 ms x 1 Valid range 0 24 Default 3 65 Patch inhibit input is active low 0 Patch inhibit input is active high 1 Default 0 87 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Telephone Interface 163 Off hook voltage threshold is 25 V 0 Off hook voltage threshold is 15 V 1 Allow user to manually set off hook voltage threshold via test 6 or programming software 2 Default 0 This parameter 15 required for determining the off hook voltage threshold on the PL1877A s phone line This allows the PL1877A to determine when an attendant line sharing telephone is in use Program parameter 163 to 0 for a phone line that provide
73. atch telephone line and the line is off hook in use by a line sharing telephone set etc the unit returns a busy signal to the mobile user The line may be accessed in this condition by the busy override code e CTCSS Control The TX CTCSS disable relay can be programmed to operate on command only or automatically on access This allows use of the patch without disturbing other mobile users in the system If the relay has been activated disabling CTCSS the CTCSS may be commanded back on in order to involve another mobile user in the telephone conversation e Parallel telephone line capability The interconnect can share a telephone line with a standard telephone set This eliminates the need for a separate telephone line dedicated to the patch e Direct Access Direct Air Allows the telephone line callers to be placed on the air immediately after mobile signaling on telephone line originated calls e Overall Access Time Limit The duration of access to the patch is set by parameter control e Automatic Station Identifier CWID The patch can be configured to automatically send Morse Code station identification information at selected intervals The choices for these intervals are 0 59 minutes periodic SID at the end of every interconnect or both e Autodial The PL1887A can have up to 25 speed dial numbers programmed into it e Triple Key Access This feature allows mobiles and portables without DTMF equipped
74. ause generation of group calls for selected paging type 0 Enable the ability of a land line user to cause generation of group calls for selected paging type 1 Disable ability of attendant to cause generation of group calls for selected paging type 0 Enable ability of attendant to cause generation of group calls for selected paging type 1 04 15 Disable mobile user s ability to cause generation of group calls for selected paging type 0 Enable mobile user s ability to cause generation of group calls for selected paging type 1 NOTE These parameters 1009 1010 and 1011 apply only to 2 tone 128 Paging Types of Paging The PL1877A supports the following types of paging DTMF 2 Tone Plectron 5 6 Tone 1500 and 2805 NOTE In many applications below 800 MHz the maximum allowable signaling time as prescribed by FCC regulations is 3 seconds and only signal once Therefore be sure that regulations applying to this system are not violated before programming the tone length values that would cause the console to signal for more than the allowed time 2 Tone Paging The 2 tone paging format requires a 3 digit prefix or capcode This capcode and the selected code plan determine what paging tone frequencies are transmitted 2 Tone Paging Example Example 1 Suppose the number of 2 tone keypad digits accepted from the user on the selected channel is 2 and Code Plan R has been selected The 8 second
75. ay not prevent degradation of service in some situations Repairs to certified equipment should be coordinated by a representative designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas N CAUTION N Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or electrician as appropriate CP 01 Issue 8 Part I Section 14 2 NOTICE The Ringer Equivalence Number REN assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5 1 04 15 Foreword PL1877A Microprocessor Radio Telephone Interconnect Scope of Manual This manual offers descriptive data and service information for the PL1877A Microprocessor Radio Telephone Interconnect Printed circuit board details are a part of this service manual Nome
76. bile signaling is enabled or 1 Enable disabled Default 0 1004 Determines whether the PL strip output 0 Deactivate 122 during transmission of selective signaling tones is activated or deactivated 1 Activate 04 15 112 PL1877A Microprocessor Radio Telephone Interconnect Description Determines whether pulse dial decoding for landline selective signaling input is enabled or disabled Control Digits 0 Disabled 1 Enable Parameter Modification Refer to Section on Page Determines whether 6 dB octave de emphasis of selective signaling tones is enabled or disabled 0 Disabled 1 Enable Determines whether selective signaling from a landline caller on line 2 is enabled or disabled 0 Disable 1 Enable Default 0 Determines whether 5 tone diagnostic mode is enabled or disabled 0 Disable 1 Enable Enable or disable the ability of a landline user to cause generation of group calls for a selected paging type 0 Disable 1 Enable Enable or disable the ability of an attendant to cause generation of group calls for a selected paging type 0 Disable 1 Enable Enable or disable the ability of a mobile user to cause generation of group calls for a selected paging type 0 Disable 1 Enable Determines whether dual addressing in Motorola 5 Tone selective signaling is enabled or disabled 0 Disable 1 Enable Allo
77. ce that only the right most digits of the capcode were placed in the wildcard prefix Or suppose the wildcard code is 12 34 and the PL1877A is programmed for multi mode paging If user ID 56 is paged the PL1877A requires a wildcard access prefix that matches the pattern 61234 Again the right most digit of the user ID was placed in the wildcard prefix 59 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Multi Digit Access Release Multi Digit Access This feature provides a method of allowing certain privileged mobile users to override restrictions that have been programmed into the PL1877A For example the parameters may be set so that mobile users are not allowed to dial telephone numbers with a first digit of 1 If a mobile user attempts to dial a number beginning with 1 the PL1877A disconnects However with multi digit access certain privileged users may override this restriction and dial numbers beginning with 1 The Multi Digit Access Code A multi digit access code is a 1 to 6 digit DTMF code that is used as a prefix to DTMF access commands which are n autodial where is the autodial location and redial The PL1877A supports four unique multi digit access codes each of which may be 1 to 6 digits in length Each can be programmed to override a specified set of restrictions such as dialing telephone numbers beginning with 1 NOTE PL1877A only recognizes multi digit access prefi
78. certain functions to occur Also a pause or revert cannot be the last digit of an auto dial telephone number For a long pause modify the autodial pause duration via the IAPS The PL1877A automatically pauses at a revert character so it is not necessary to enter adjacent pauses and reverts 3 While entering the auto dial telephone number pressing causes the PL1877A to key the transmitter and repeat the input digits received so far This is useful in determining that you did not make any mistakes while entering the number 4 causes the PL1877A to abandon your input transmit 3 beeps and wait for entry of a new auto dial location number followed by Use this command if you made a mistake and wish to start over causes the PL1877A to abandon your input and exit auto dial programming You can enter at any point in auto dial 5 To store a telephone number just entered press The PL1877A saves your input returns 3 beeps and waits for entry of a new auto dial location number followed by You can modify another auto dial number or exit the auto dial programming mode by entering or 6 clear an auto dial location number enter the auto dial programming mode as described above Enter the number to be cleared followed by then dial The PL1877A clears the location returns 3 beeps and waits for you to enter a new location number 53 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconn
79. crew terminals TB3 should be used for connection of the PL1877A P1 interface cable The following jumper wires should be soldered into the holes adjacent to the screw terminals rather than wrapping the jumper ends around the terminals Install the following jumpers From T9 Function 1 Screw terminal 9 J5 pin 9 PL stripping 2 Screw terminal 13 Sta cont Pin 21 3 Screw terminal 15 F1 PL pin 22 Exciter input 4 Screw terminal 17 22 10 In order to use the PL stripping function a jumper must also be installed from P701 on the PL encoder board to P964 on the transmitter interconnect board This jumper is also used with the paging PL defeat option Installation of P1 Interface Cable Cable Color To Function Red Screw terminal 1 PL stripping return Orange black Screw terminal 1 PTT return Green black Screw terminal 1 RX audio return Blue black Screw terminal 1 TX audio return Red black Screw terminal 9 PL stripping Green white Screw terminal 13 RX disc audio White Screw terminal 14 Repeater PTT Blue white Screw terminal 15 TX audio Black Screw terminal 17 PL indicator If the PL1877A is to be dc powered connect the red lead in the dc power cable to screw terminal 10 and the black lead to screw terminal 1 connect the other end of the dc power cable into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If the optional ac transformer and cable are t
80. d Determines the time between SID transmissions If this parameter is programmed to 0 periodic SID is disabled Multi digit access prefix 1 Multi digit access prefix 2 Multi digit access prefix 3 Multi digit access prefix 4 110 Valid range 0 59 seconds Default 15 Valid range 0 59 minutes Valid range 0 9 A D FF Valid range 0 9 A D FF Valid range 0 9 A D FF Valid range 0 9 A D FF PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Refer to Section on Description Control Digits Page 386 391 Multi digit release code corresponding to Valid range 0 9 A D FF 92 multi digit access prefix 1 392 397 Multi digit release code corresponding to Valid range 0 9 A D FF 92 multi digit access prefix 2 398 403 Multi digit release code corresponding to Valid range 0 9 A D FF 92 multi digit access prefix 3 404 409 Multi digit release code corresponding to Valid range 0 9 A D FF 92 multi digit access prefix 4 410 415 General multi digit release code Valid range 0 9 A D FF 92 416 421 DTMF Security Code Privileged User See appropriate section 102 Override Code 422 427 Remote parameter access code this code Valid range 0 9 FF 90 is the prefix to the 0 mobile Default disabled parameter programming command It is also the acc
81. d press the PATCH ON OFF button The value set remains stored in memory unless it is again changed through an adjustment in Test 1 Exit the test by pressing the UP and PATCH ON OFF buttons simultaneously Carrier Detect Adjustments Logic Carrier Detect If using the logic carrier detect input most recent radios models use this mode the parameters must be set as follows 1 1 RX audio is post de emphasis or speaker muted source 2 1 or 0 Set to match the available level from receiver refer to Receiver Input Audio Level 3 1 External logic level carrier detect 4 1 or 0 Must be set to match the logic polarity available from the radio Consult the radio manual or programming software to determine the polarity of the logic carrier detect output Other parameters must be set as the system requires Verify the proper selection of RX audio source from the radio Some radios such as the GM300 and MaxTrac Series radios require the positioning of an internal jumper to select muted post de emphasized audio JU551 in the B position in these models Refer to the radio s technical manual for information on internal jumpers 17 04 15 Installation PL1877A Microprocessor Radio Telephone Interconnect Enter diagnostic Test 3 by pressing both the UP and DOWN buttons simultaneously Press the PATCH ON OFF button until Test 3 is reached While in Diagnostic Test 3 ensure that the Carrier Detect Input LED marked PWR for this test
82. d be adjusted to the minimum level that will provide satisfactory receive volume at the knee of compression and no more Excessive input sensitivity or too high an adjustment of the receive line input level potentiometer will result in an increase in effective line noise and or hum possibly causing improper operation of the PL1877A cross lock out VOX feature During final tests a check should be made by setting up the PL1877A for Test 5 refer to Internal Diagnostics section of this manual and ascertain the RADIO BUSY LED is extinguished when not receiving a mobile signal and is illuminated with the presence of receive audio MSF 5000 Digital Base Repeater Stations Installation of the PL1877A to the MSF 5000 digital station requires the MSF 5000 Cable Kit Part No M2000 MSF5000 CBL The station must be programmed for phone patch operation using MSF 5000 Radio Service Software available through Motorola Service Stations Connect the signal cable to connector P802 on the MSF 5000 station control module Connect the dc power cable to the screw terminal strip on the station power supply Earth Ground Run the supplied 12 black ground wire from the PL1877A GND terminal to the base station chassis This wire must be as short as practical not coiled and connected securely to the base station chassis Required Parameter Settings Using the Parameters Modification Procedure detailed in this manual set the following parameters 0 inter
83. d digits in all wildcard prefixes For example suppose you have decided that you want all wildcard prefixes to be four digits in length and conform to the structure 3xx2 where x represents a wildcard digit 3 Program the required values into the wildcard template For the example above you have chosen 3xx2 as the required wildcard structure The last digit of your wildcard structure must be programmed into parameter 535 Thus you would program parameters 530 535 as follows parameter 530 FF parameter 531 FF parameter 532 3 parameter 533 F parameter 534 F parameter 535 2 Notice that all unused locations must be programmed with the value FF hexadecimal FF All wildcard digits must be programmed with the value F hexadecimal F 73 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect Suppose you have changed your mind and decided that you don t want any fixed digits in your wildcard prefixes This allows the mobile user to choose all digits in the wildcard prefix when the prefix is actually used To accomplish this you would program parameters 530 535 as follows parameter 530 FF parameter 531 FF parameter 532 F parameter 533 F parameter 534 F parameter 535 F Notice that all four digits used in the wildcard prefixes are wildcard digits 4 Ifyou want to completely disable the wildcard feature simply program parameters 530 535 to FF hexadecimal FF Wildcard Access Release w
84. d paging type In multi mode operation each mobile is assigned a user ID from 0 to 99 The selective signaling feature may be operated by 1 A land line caller with a DTMF or rotary telephone 2 An attendant the user of a DTMF telephone that shares the same phone line as the PL1877A 3 A mobile user with a DTMF encoder Parameter settings determine which of these are allowed any all or none Landline Caller The caller dials the telephone number of the PL1877A When the PL1877A answers it normally generates two beeps to indicate that it is waiting on the landline user to enter the required capcode digits or user ID NOTE If the PL1877A is programmed to require a landline access code before allowing selective signaling parameter 50 1 or parameter 43 1 then it answers the phone line with one beep After the landline user has entered possibly preceded by an access prefix parameters 133 138 the PL1877A generates two beeps and awaits the paging input digits The caller is allowed a certain time set by parameter 1089 to enter the first input digit When the proper number of digits has been entered the PL1877A generates three beeps Then the PL1877A checks for a clear channel before paging the mobile If the channel is busy the PL1877A returns busy tones to the landline The PL1877A continues to check for a clear channel for a maximum of one minute If the channel is not clear at the end of 1 minute the PL1877A disconnec
85. d with the wildcard template E1FEF Also mobile access has been restricted to users of multi digit access prefixes and all standard multi digit access prefixes have been disabled In this example the mobile is always required to access the PL1877A with a wildcard prefix To answer a page mobile users must substitute their user ID digits into the capcode wildcard positions However to originate a call to a telephone user the mobile treats the capcode wildcards as normal wildcard digits That is instead of substituting their user ID digits into the capcode wildcard positions the mobile can substitute any digits for those locations Thus continuing the example above to answer a page the mobile must always use a wildcard access prefix that matches the pattern 51x6x However to originate a call to a telephone user the mobile may use a wildcard access prefix that matches the pattern x1 xxx If the wildcard template contains less capcode wildcards than there are digits in the capcode only the right most digits of the capcode are used in the wildcard prefix For example suppose your wildcard template contains EIFEF Also suppose your PL1877A is programmed for QuickCall II single mode selective signaling If the PL1877A pages a user with the capcode 023 the PL1877A requires wildcard access prefixes that match the pattern 21x3x Notice that only the right most digits of the capcode were placed in the wildcard prefix Suppose your wildcard te
86. dant has entered possibly preceded by an access prefix parameters 139 144 the PL1877A generates two beeps and awaits the paging input digits The attendant is allowed a certain time set by parameter 1089 to enter the first input digit When the proper number of digits has been entered the PL1877A generates the beeps Then it checks for a clear channel before paging the mobile If the channel is busy the PL1877A returns several busy tones to the attendant The PL1877A continues to check for a clear channel for a maximum of one minute If the channel is not clear at the end of one minute the PL1877A generates six disconnect beeps and returns to idle When the channel is clear the PL1877A pages the mobile Then if the PL1877A is not programmed for direct access it waits for the mobile to answer Otherwise the PL1877A immediately patches the attendant through to the channel for the duration of the direct access timer If the attendant takes too long to enter the paging input digits the PL1877A responds in one of three ways depending on the value of parameter 1082 It either disconnects the landline transmits ring signaling to the mobiles or pages user ID 00 if user ID 00 has been enabled If the attendant desires to page several mobiles at once he enters the paging input for the first mobile as described above Then when the PL1877A has paged the mobile he presses In response the PL1877A generates two beeps to indicate it
87. deck between U401 pin 7 and pin 26 Solder the supplied diode into the JU102 holes on the main circuit board close to squelch control with the cathode toward mic PTT Digital PL TRN6207A and similar Remove the lead on the PL deck that comes from J601 pin 1 on off from hang up box and solder it to Q312 base Connect JU302 to pin D The Monitor function is now via the front panel and or desk mic monitor switch Now connect the PL1877A P1 radio cable to the base station P601 connector as follows using the supplied male connector pins as applicable Twist the above listed leads together and solder to a short wire lead Then strip a small section on the black power lead close to the connector Neatly solder the short lead from the returns to the stripped section of the black power lead corr 6 _ 9 ww m NOTE The orange and orange black leads reverse burst inhibit and return need to be connected only in the signal search mode If the PL1877A is to be dc powered connect the red lead in the dc power cable to P601 pin 4 and the black lead to P601 pin 6 Connect the other end of the dc power cable into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If the optional ac transformer and cable are to be used install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A 04 15 146 PL1877A Microprocessor Radio Telephone Interco
88. der processor control via data lines MPD8 15 The leveled audio signal passes through an anti aliasing filter U24c and onto the encoder portion of CODEC U20 The CODEC is a device that quantizes samples the analog audio signal according to mu law coding conventions i e companding Output at U20 11 is a serial 8 bit code suitable for conditioning by the DSP algorithms The conditioned receive audio data in serial form from U10 is input to the receive data DR input pin 6 of the CODEC There it is restored to analog by the decoder portion of the CODEC The CODEC expands the signal decompression back to its original dynamics reversing the compression that took place in the encoding process This process is known as companding The restored audio signal is without much of its original undesirable attributes such as noise hum etc Also if de emphasis is selected by parameter 1 audio is restored to flat response Reset to the DSP processor asserted on power up to assure proper initialization provided by U4 is under control of the HOST processor TX Audio The audio processing that occurs to the TX phone line to transmitter audio is similar to the process that occurs to receive audio However different algorithms are used to detect VOX dial tone and call progress tones and DTMF tones Audio enters the DSP module and is directed to U19 19 The process of audio signal leveling is essentially the same to that used in the r
89. determine the frequencies for capcode 765 when the selected codeplan is R parameter 1129 16 Locate the chosen code plan in Table 1 From the same table locate the most significant digit MSD 7 in this example of the 2 tone capcode Next determine the two digit number that appears at the intersection of the codeplan row and the MSD column 62 in this example The first digit of this number 6 in this example corresponds to a number under Chart A Group Table 2 and indicates which row of frequencies in Table 1 is used for the A tone In this example the A tone number is 6 which corresponds to 1321 2 Hz The second digit of the number from Table 1 2 in this example also corresponds to a number under Chart A Group and indicates which row of frequencies in Table 2 is used for the B tone In this example the B tone number is 5 which corresponds to 746 8Hz Plectron Plectron capcodes consist of four digits that specify two tones the tone and the B tone The frequencies of the A and B tones are determined from Table 3 and Table 4 on pages 133 and 134 according to the following procedure Suppose you wish to determine the frequencies for the Plectron capcode 3456 The first two digits of the capcode 3 and 4 in this example are located on the Plectron Code Plan chart Table 3 In the column beneath this two digit number there are two P numbers P5 and P6 in this example that correspond to tone groups in the Plectron To
90. dett 119 2 Tone Group Calls E p e ERR REEF Od eon Eae ERI EUR st EARTEN 120 ID P ILI p EEUU 120 Single Mode Selective Signaling e eter e nr t ERES at PE ER S 120 Multi Mode Selective Signaling a ee eie tee bes a eR Rees 121 Capcode Characteristics s oe eR o Ree er Ri s pte ie te E E Ee ER E o pe ride Res 121 SELECTIVE SIGNALING PARAMETERS AND FUNCTIONS ee ee 122 General Selective Signaling Characteristics eese esses eese eene eene entente tnnt 122 Selective Sienaling Method e t Re teet tie edente rene eet Redes reip testes 123 Selective Signaling Types ic i te o a ERE de cus te os inca EXEC EE qt 126 IZ ient 129 TYPES OF PAGING ses de aeta pete ie A Oe ditte A denen sides AP dd ide 129 2 UTE HON GIU 129 2 Tone Paging Example ede e e e P RE UE RR EUR ERR EF RU UTR PR E ERE NE dp UG 129 Call RE 130 PEECIRON PAGING e Sub E N eee A pou 133 Plectron Paging Examples cresien i or iias oe oe ele 133 SVG RONI 3 5 eee aaa tae ss ev cetera den edd 134 PL1877A RADIO INSTALLATION esee reser enses ta enses suse ta sesso sees suse ta suae 137 Mitrek Consolette PL1877A Single Simplex Mode eese ener nenne enne 137 Mitrek C
91. dic soft high pitched warbling tone to the mobile This tone is summed with the phone line audio and does not interfere with voice communications It alerts the mobile that the PL1877A s other line is ringing If the mobile wishes to answer the other line he must first terminate the current conversation by entering the disconnect command or possibly in conjunction with a multi digit release sequence The PL1877A generates 6 disconnect beeps and then transmits the 3 second ring signal 1f the other line is not programmed for selective signalling or direct access NOTE Selective signaling and direct access are programmable on a per line basis That is you can program the selective signaling or direct access features to operate on one both or neither line Originating Calls on Line 2 Since the PL1877A idles on line 1 the mobile user must specifically direct the PL1877A to line 2 if he wishes to place a call on that line This is accomplished by dialing 2 from the mobile encoder The mobile user can then access the PL1877A via an access command autodial command or redial command If the mobile user has not attempted to access the phone line within 30 seconds after entering the 2 command the PL1877A automatically reselects line 1 117 04 15 Features PL1877A Microprocessor Radio Telephone Interconnect The 2 command can also be used when the PL1877A is generating a busy signal to the mobile When the PL1877A attempts to acce
92. dio cut through delay Mobile inactivity control 128 The time that the PL1877A is to pause and wait for a dial tone when the pause character is encountered in an auto dial number 131 The number of busy tone cycles that must be received to cause the PL1877A to disconnect during a mobile originated call 81 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Mobile Programming of Auto dial Numbers If enabled by parameter 55 mobile users can install or modify telephone numbers in the auto dial memory Following are instructions regarding how this is accomplished 1 With the PL1877A in the idle state dial 0 from the mobile DTMF keypad The PL1877A responds by transmitting three mid frequency beeps The PL1877A is now waiting for you to enter a valid auto dial location number 1 25 followed by a NOTE Auto dial locations 10 25 are only available for use and modification if the selective signaling option is present If you enter an invalid auto dial location number the PL1877A generates 6 disconnect beeps and exit the auto dial programming mode Upon receipt of the following the location number the PL1877A opens the auto dial location and waits for you to enter a phone number Enter the desired phone number You can program the PL1877A to pause between digits of a telephone number This is useful when you are dialing out of a PABX and must wait for the PSTN external dial tone before cont
93. e averaged over 3 seconds Input level from phone line esses rentrer enne 5 dBm maximum autolevel threshold 35 dBm 3 dB Phone line busy detect 1 20 V 2 V or 10 V 2 V with 24 V threshold user selectable Phoneline ring detection at ee ce e i di eese Adjustable from 20 Vrms to 50 Vrms Ringer equivalence se occ rinsed RT IS RN BS EE I RE 0 0B acy 4 9 dc Input Audio Level from Receiver High level discriminator detector esses 0 45 8 dBm Low level discriminator detector eese eene enenenennnne 80 mVgys 8 dB High level flat audio eno eme etre eer rer c tec Re 2 5 Vrms 6 to 8 dBm Low level flat audio ir erre e 0 45 Vrms 8 dB Ti pedatice crees 600 ohms or high impedance bridging user selectable Audio Frequency Response RX to landlines e eene n e eret esten eret nes se teen 360 to 3 000 Hz 3 dB Land line to transmitter nennen een Aaea rir eii 300 to 3 000 Hz 3 dB 745 dBm input phone to transmitter path 45 mV ac input low level flat input to phone line path auto level disabled Logic Level Inputs Inp timpedance zoe In Ree e a ee ges ete ee eR o ER D RR en ates 90k ohms inputs pulled up through 100K ohms to power input voltage Maximum low level mput
94. e cathode toward mic PTT Digital PL 6207A and similar Remove the lead on the PL deck that comes from J601 pin 1 on off from hang up box and solder it to Q312 base Connect JU302 to pin D The monitor function is now via the front panel and or desk mic monitor switch Connect the PL1877A P1 radio cable to the base station P601 connector as follows using the supplied male connector pins as applicable Twist the above listed leads together and solder to a short wire lead Then strip a small section on the black power lead close to the connector Neatly solder the short lead from the returns to the stripped section of the black power lead mesw mr co paneon s mw m NOTE The orange and orange black leads reverse burst inhibit and return need to be connected only in the signal search mode If the PL1877A is to be dc powered connect the red lead in the dc power cable to P601 pin 4 and the black lead to P601 pin 6 Connect the other end of the dc power cable into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If the optional ac transformer and cable are to be used install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A 143 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect Earth ground Run the supplied 12 or larger wire from the GND terminal on the rear of the PL1877A to the base station chassis ground T
95. e direct channel 0 Disable 100 access 1 Enable Default 0 59 Enable or disables attendant direct channel 0 Disable 100 access 1 Enable Default 0 107 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Refer to Section on Description Control Digits Page 60 Determines whether control of external 0 Disable 102 devices using the security code is enabled 1 Enable or disabled Default 0 61 Determines whether the PL strip output 15 0 Deactivate 100 activated or deactivated during direct 1 Activate access time Default 0 62 Determines whether the SID is transmitted 0 Do not transmit 95 if it is time to do so and no station PTT has 1 Transmit occurred since the last SID transmission 64 Enable or disable disconnection upon 0 Disable 94 detection of dial tone for a landline 1 Enable originated call Default 0 65 Determines whether patch inhibit input 15 0 Active low 87 active low or active high 1 High Default 0 66 Determines whether GPI 1 is active low or 0 Active low 86 active high 1 Active high Default 0 67 Determines whether GPI 2 is active low or 0 Active low 86 active high 1 Active high Default 0 69 Determines whether the ring signal 0 Low frequency 103 generated to the mobile is a low frequency 1 High frequency 430 390 Hz combination or a high Default 0 frequency 84
96. e information on diagnostic test mode refer to the Internal Diagnostic section in this manual Transmitter Audio Level The following procedure is for setting and measuring transmitter modulator IDC circuit performance and overall quality of the landline to mobile audio Before proceeding disable the Private Line encoder output of the transmitter if used This may involve removing the PL code plug in older model radios For newer model radios select a carrier squelch mode if available or temporarily program the station to generate carrier only without PL DPL If the PL STRIP function has been properly wired to the station it is not necessary to perform the above mentioned procedure Simply verify that the transmitter is not sending PL DPL while testing Enter diagnostic Test 1 by pressing both the UP and DOWN buttons simultaneously This procedure also activates PTT and generates a 1000 Hz tone to the transmitter If the PL STRIP function has been wired to the station the transmitter should key and cause the station to transmit without generating Private Line codes Adjustment of the transmit level should be made by pressing the UP or DOWN buttons as needed to produce 60 system deviation Adjust the level to produce 3 kHz deviation as indicated by the deviation monitor for standard 5 kHz deviation radios For split channel narrow band radios set the level to produce 1 5 kHz deviation After the desired deviation level has been achieve
97. e station repeater enable command the PL1877A activates the monitor output This output can be used to enable the base station or repeater if desired The PL1877A remains responsive to mobile DTMF commands for 7 minutes following reception of the enable command The monitor output remains active for that entire duration If the mobile accesses the phone line during the 7 minutes the PL1877A remains responsive to mobile DTMF and keeps the monitor output active until disconnection occurs The mobile user can refresh the 7 minute timer by sending the command He can disable the PL1877A and deactivate the monitor output by sending a disconnect sequence or with any required multi digit prefix suffix at any time 04 15 102 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Installation To enable the station repeater enable feature program parameter 56 to 1 NOTE The station repeater enable feature is not available when the PL1877A is programmed for RX VOX carrier detect parameter 3 0 parameter 5 1 This is because the monitor output is used for channel scanning in that configuration The station repeater enable prefix consists of 1 6 DTMF digits Each digit has a valid range of 0 D Unused digits must be filled with FF hexadecimal FF To completely disable the prefix thus requiring only as the enable command store FF in all digits 766 5 station repeater enable feature 0
98. e to respond by sending the access command If a mobile does not respond in the time set by parameters the patch disconnects NOTE When the patch attempts to transmit the direct access ring or the selective signaling sequence it checks for a clear channel absence of mobile carrier and station PTT If the channel is not clear the phone user hears busy tones until the channel clears or until one minute has transpired If the channel remains busy for one minute the patch aborts the call 04 15 66 PL1877A Microprocessor Radio Telephone Interconnect Operator Instructions Multi Digit Access Release Multi Digit Access The multi digit access feature provides a method of allowing certain privileged mobile users to bypass restrictions that have been programmed into the PL1877A For example if parameter 47 is set to 0 mobile users are not allowed to dial telephone numbers whose first digit is 1 Thus every time a mobile accesses the PL1877A and attempts to dial a number beginning with 1 the PL1877A disconnects However it may be desirable to allow certain mobiles to dial telephone numbers beginning with 1 even though most mobiles in the system are not allowed this privilege To accomplish this you must use the multi digit access feature A multi digit access code is a DTMF code of 1 6 digits that is used as a prefix to the DTMF access commands n the autodial command where is the desired autodial location and the redial
99. e when the mobile user has accessed the phone line using a multi digit access code For example suppose the multi digit access code 1 is 786 and the corresponding release suffix is 546 When the mobile uses accessed the PL1877A by entering 786 the sequence 546 would be required to disconnect NOTE Ifthe associated multi digit release code is not enabled the PL1877A requires the general multi digit release code If the general multi digit release code is not enabled the PL1877A will simply disconnect is response to the or disconnect command 04 15 62 Operator Instructions Mobile Originated Calls The PL1877A Radio Telephone Interconnect is capable of operating in three different modes to work with different types of radio systems Each of these types of systems requires a slightly different set of mobile operating instructions Therefore it is important to refer to the section that applies to your system Signal Search Simplex Mode In this mode the patch is installed at your base station To access the telephone line connect push the button on your encoder In about two seconds you should hear the dial tone interrupted by short bursts of squelch noise These short bursts are sample intervals during which the patch is searching for your transmitter signal and are heard only by the mobile radio users When dial tone is heard you may enter the telephone number stretching the duration of the first digit for about
100. e would send an A tone of 330 5 Hz for one second and then a B tone of 564 7 Hz for two seconds The frequencies for the A and B tones are determined from the charts according to the following procedure 1 Locate the first two digits of the prefix 3 and 4 in this example on Table 3 2 Inthe column beneath this two digit number there are two P numbers P5 and P6 in this example that correspond to tone groups on Table 3 Using the P number for the third digit of the prefix determine the correct tone group from the Table 4 3 Find the frequency of A tone 330 5 Hz by locating the intersection of the tone group row with the column headed by the third prefix digit 5 in this example 4 Find the frequency of the B tone is in the same manner by using the tone group for the fourth prefix digit as listed in Table 3 below Table 3 Plectron Paging Code Plan Chart Most Significant Digits to Tone Source 01 02 03 05 07 08 09 10 12 13 14 15 16 17 Digits 3 digit tone P1 P2 P1 P2 P3 P1 P3 P2 P3 P4 1 2 P4 P3 4 P5 1 source source 1 2 MS 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Digits 3 digit tone P5 P2 P5 P3 5 4 P5 P6 P1 P6 P2 P3 P6 P4 P5 source 4 digit tone P5 P2 5 P3 P5 P4 P6 1 P2 P6 P3 P6 4 P6 P5 source 133 04 15 Paging PL1877A Microprocessor Radio Telephone Interconnect Table 4 Plectron Tone Group F
101. ease Telephone Initiated Misc Access Release Disconnection on Phone Line Current Reversal Land Line Origin Allows the installer to enable disable the automatic disconnect of a land line originated call in case of a phone current reversal or loss of loop current Many phone systems use this feature to indicate the landline party has hung up facilitating automatic disconnect of the equipment Not all phone systems support this feature check with your local telephone company Disconnection upon Detection of Dial Tone after Access If enabled the PL1877A disconnects if dial tone is detected during a landline originated call Land Line Disconnect with DTMF Release Command Allows or disallows the ability of a landline user to disconnect a mobile originated call using the DTMF command DTMF 1 upon Auto Phone Line Access Enables disables a DTMF 1 answer tone of 100 ms in duration upon automatic telephone line access Direct Access Some automatic systems have the capability to decode the DTMF 1 as an indication of answer signal Enabling this feature allows interconnect compatibility with this equipment Time between Answering Call amp Generating Beep Determines the delay between automatic phone line access and beep tone generation The value ranges from 500 ms to 1250 ms in 50 ms increments 37 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Access Release Global Access Release Station Repeater Cont
102. eceiver path Once auto leveled the analog transmit audio is routed through CODEC U21 where companding takes place as in the case of receive audio From there the PCM signal is handled by the DSP processor and reconstituted as analog audio by the CODEC 04 15 158 PL1877A Microprocessor Radio Telephone Interconnect Theory of Operation Radio Interface Receive audio from the station receiver enters via P1 10 and passes through an attenuator consisting of R221 R225 and R205 and R206 JU202 IN allows use of high level audio sources such as a line or speaker level source A 15 dB attenuator Q201 202 and 203 can be enabled on demand parameter 2 by the processor as needed to give flexibility in acceptable receive levels R220 serves as a termination resistor JU202 IN to establish a 600 ohm input impedance With JU202 the input impedance is high or bridging Receive audio then is routed to the microprocessor DSP module via U206b There it is digitized to a serial output by CODEC U20 to allow processing by U10 U207a U207b and associated components comprise an active high pass filter extracting the noise component from the detector but ignoring the speech audio Wide band noise is always present from an FM detector when no signal is present The extracted noise level set by VR201 is detected by D210 and U207c which comprises a half wave precision rectifier The dc output derived feeds comparator U207d w
103. eception of the security code The monitor relay must not be used for any other function that is it must not be wired to enable MONITOR Not applicable with VOX carrier detect method Security Code Allows privileged users to enter a 6 digit security code to override some unit functions The valid range for each digit is 0 9 CTCSS Strip on Access Determines whether the TX CTCSS disable output is automatically activated at the beginning of a conversation If enabled in a system that uses CTCSS limited privacy is afforded to the mobile as other mobiles on hook will not hear the telephone conversation 04 15 38 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Signaling File Input Output Service Adjust Installation Basic Operation Access Release Paging View Help amp Dialing Method Telephone Line Dialing gt By Autodial Redial Mobile Signalling Autodial Numbers Toll Restriction Toll Restricion Prefixes 1 16000 Signaling Telephone Line Dialing Dialing Method Telephone Line Dialing Type Chooses the type of landline out dialing compatible with the available telephone service The default is DTMF Mobile DTMF Regeneration Determines whether regeneration of DTMF numbers occurs during dialing If disabled all valid DTMF digits are simply passed through to the telephone line unprocessed or un regenerated except for auto leveling 1 transparent Disabli
104. ect Wildcard Access Release This provides a mobile user with the ability to create a unique access prefix each time a call is placed or answered This access prefix then becomes the required release suffix to disconnect the call This feature increases the level of security beyond that provided by the standard multi digit access release feature Since the standard multi digit access and release codes are fixed security is limited by the number of mobile users who know the codes For example if the PL1877A is programmed to require a multi digit suffix from the mobile user anyone who knows the required suffix can cause disconnection of the conversation However with wildcard access release it is unlikely that anyone will be able to disconnect a call except the mobile user who originated it via the wildcard access prefix For example suppose a mobile user accessed the PL1877A with the wildcard access code 1776 and then the standard access code The user would be required to enter the same wildcard code to disconnect the call 1 e enter 1776 or 17764 depending on whether the PL1877A is programmed for multi digit release prefixes or suffixes On the next call the mobile user might use 1812 as the access code so the same wildcard code 1812 or 181272 would need to be used to disconnect Notice that the mobile user used two entirely different access prefixes in each case above In fact the user could enter a different prefix each
105. eeps three short mid frequency tones if the parameter has been successfully opened Enter the desired parameter value Once the parameters have been programmed as needed exit the parameter modification routine by entering a from the DTMF telephone The PL1877A should then return to you a series of six disconnect beeps returning the PL1877A to an idle state Refer to the parameters section of this manual for specific parameter functions and the table at the end of this section for a valid DTMF parameter modification list This list informs you of what specific parameters can be programmed via DTMF NOTE Ifthe PL1877A is configured for land line selective signaling and you wish to allow land line DTMF programming you must program the PL1877A to require a access command from the land line caller parameters 43 50 Then to program parameters via DTMF dial 0 along with any required prefix instead of If you do not program the PL1877A to require a access command the PL1877A interprets 0 as paging input instead of a command to enter the land line DTMF programming mode 04 15 80 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Procedure from a Mobile or Portable Equipped with DTMF Pad From the mobile enter the command 0 If the PL1877A is to require a prefix prior to the 0 command this prefix must be entered into parameters 422 427 The prefix gives additional protection against unauthorized or
106. enses tuse ta tua tosta sone ta sene ta sens eta suse tasa 165 04 15 Publication 43004 019D vi Foreword User Instructions USA This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense This equipment complies with Part 68 of the FCC rules Located on the equipment is a label that contains among other information the FCC registration number and ringer equivalence number REN If requested this information must be provided to the telephone company The REN is used to determine the quantity of devices that may be connected to the telephone line Excessive REN s on the telephone line may result in the devices not ringing in response to an incoming call In most but not all areas the sum of the REN s should not exceed five 5 0 To be certain of the number of devices that may be connected to the line as determined by the total REN s con
107. entification SID CWID reiii eiei ea RA N EEE E EEEE NEEE EAEE REE E 95 Toll Restrictions ares ise n aee A EN AE ea cQ EE ERA EATE A Ye VEEE EN AEE e eae 97 AULOCIGI EARNE EAA EAE EN AEE EEA 98 e tete ete venie andere N EE ACNE EARE 99 Direct Channel ACCOSS ui e d aea ise tbe IEE SEE aiiud eaedem 100 Mobile Security Code Privileged User Override essere 102 Station Repeater Enable Feature dee um terere re er Rr re ea a edges 102 04 15 Publication 43004 019D V Table of Contents PL1877A Microprocessor Radio Telephone Interconnect Miscellaneous Features sg o lod RIT ee ex Ne vau eee ERR eve bee 103 PARAMETER FUNCTION REFERENCE TABLE sese nnne nne nnn nennen nennen inerenti 104 URES rd T 117 SECOND EINB OPTION ERU ETERNI EU HR eie ri Sete eee E T Ree HO eunt 117 Answering Calls on Line 25 Rc piel ee e 117 Originating Calls on Line 2 3 e oe nb e he de e este Pe edet pen 117 SELECTIVE SIGNALING saisie igiena E Eaa eese nti ied b teers nin tieni ceder ena e dre e eret 118 Landline Caller 3 det e e ee ERR I Wee eta a 118 LUCIDE dai 119 Mobile User Mobile Revertive 5 1 amp nennen rennen 119 Gro p Calls se RE re a e RE E fei pO etie
108. ephone user immediately after paging the mobile The telephone user has access to the channel for a certain time the direct access duration At the end of that time the PL1877A disconnects the telephone user The direct access duration can be extended to the normal overall access duration set by parameter 357 in one of two ways First you can program the PL1877A via parameter 25 to extend the direct access duration if mobile carrier is detected The other method of extending the direct access duration is to require reception of a wildcard access code that includes the paged mobile s capcode or user ID digits For example suppose the PL1877A is operating in single mode selective signaling and has just paged a mobile whose QuickCall II capcode is 023 The telephone user has been granted direct channel access If the PL1877A receives a wildcard access code that includes some or all of the digits 0 2 and 3 the time allotted for direct access is extended to the overall access duration parameter 357 Suppose the PL1877A is operating in multi mode selective signaling and has just paged a mobile whose user ID is 56 The telephone user has been granted direct channel access If the PL1877A receives a wildcard access code that includes the digits 5 and 6 the time allotted for direct access is extended to the overall access duration Programming the Wildcard Template for Use with Selective Signaling To program the wildcard template such that t
109. erconnect Model Chart Model Description O PL1877A PL1877A Microprocessor Radio Telephone Interconnect The following options are included in your PL1877A Options Description ____ OO E375 Enhanced VOX E380 Basic Selective Signaling provides 2 Tone Z394 Selective Signaling Package One provides DTMF and Plectron Z395 Selective Signaling Package Two provides 5 6 Tone and 2805 1500 04 15 4 PL1877A Microprocessor Radio Telephone Interconnect Foreword The following field installation kits and accessories are available for the PL1877A C OORNE RN 5 04 15 Foreword PL1877A Microprocessor Radio Telephone Interconnect Specifications General Tnputvoltage s ccc it aed 110 5 16 V de or optional 115 V ac 60 Hz 220 V ac 50 60 Hz Input curte de Erstes ert A Less than 750 mA RET Protection Built in Hum and nolse rege on no oa to 45 dB from 1 000 Hz reference Audio Distortion eee enne 1 maximum with reference to a 1 000 Hz tone 710 dBm input phone to transmitter path 0 45 V ac input low level receiver speaker input to phone path Circuit loading to TX audio sese Bridging impedance ac coupled Output level to radio transmitter sss 15 to 0 5 Vrms into 600 ohms Output level to phone line sess 9 dBm maximum tim
110. erfacing to various radios 159 04 15 Theory of Operation PL1877A Microprocessor Radio Telephone Interconnect Line Interface The line interface complies with FCC part 68 rules allowing direct connection to the public switched telephone network PSTN The interface functions are lightning and surge protection from the phone line isolation line accessing pulse dialing ring detection hybrid and longitudinal balance Land line audio from the PSTN or PABX enters the PL1877A via P404 L401 L402 S401 S402 and S403 provide surge protection Ring detection is afforded by comparators U403c and U403d generating an input pulse train to the HOST processor This occurs whenever the level of the ring component exceeds the threshold level of the positive and negative comparators There it is validated U402a functions as a differential mode amplifier reflecting a high impedance load to the phone line Common mode balance is enhanced by proper setting of VR401 Phone line audio entering U402a is reduced in level by a factor of 20 71 From this point the audio passes on to U402b comprised as a gain stage of 26DB U402b also is part of the hybrid The receive audio is then injected out of phase with the line audio at the summing junction of 1402 9 The signal at HYBR_OUT 0402 8 is thus suppressed of the receive audio component Phone audio enters the module and into U402b the line driver Amplified audio coupled through T401 and C401 pr
111. es a group call and parameters 1009 1010 or 1011 are set to disable group call generation bit y must be set If the selected paging type for this user is Motorola 5 6 tone six digits have been entered and parameter 1012 is set to disable dual addressing bit y must be set If parameter 1004 is set to deactivate the PL strip output during selective signaling tones but it is necessary to activate this output when paging this particular user bit x must be set If parameter 61 is set to deactivate the PL strip output during direct access time but it is necessary to activate the PL strip output during direct access after paging this particular user bit w must be set 2 The second byte links the user ID to another user ID If the PL1877A receives no answer after paging this user the required number of times it pages the user ID specified by this byte The valid range for this entry is 0 99 This entry must have the ten s digit of the user ID in the four most significant bits and the one s digit in the four least significant bits For example for user ID 36 enter 36 hexadecimal 36 This feature allows you to create a chain of user IDs If the PL1877A receives no answer to a page it advances to the next user ID in the chain This process continues until the PL1877A reaches a user ID with no linked ID or until the PL1877A pages a user ID that requires direct access following paging bit z 1 04 15 124 PL1877A Micropr
112. ess code If the PL1877A has a Remote Access Code enter that number in the Land Line Dialing Prefix field Click on Dial After the modem dials the number listen for the remote PL1877A to answer If using a telephone connected to the modem pick up the telephone receiver and listen for the remote PL1877A to answer If dialing from a telephone connected to the modem click on Manual Dialing pick up the telephone and dial the number of the remote PL1877A Click on OK when the PL1877A connects and then hang up To ensure your parameters are saved after your programming session make sure the Auto Archive box is checked 23 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Input Output Remote Programming Dialing Directory If there are multiple PL1877A installations you have the option of storing up to 10 names phone numbers and Telephone Line Access prefixes in the Dialing Directory These can be selected and dialed directly from the screen entries To store entries in the directory enter up to 16 digits symbols Valid entries are 0 9 A F Standard DTMF digits Dash open and close parenthesis 2 second pause 1 or more rings then wait 5 seconds Flash hook Telephone line dialing prefix 6 digit access code allowing remote access to PL1877A When Remote Programming is completed select Program Remote and click on OK after the progress bar reaches 100 NOTE Ifthe IAPS o
113. ess code for the terminal programming feature 428 433 Station repeater enable prefix this See appropriate section 103 parameter is the prefix to the station repeater enable command 446 449 Toll restrict prefix 1 Valid range 0 D 1 4 97 digits 450 453 Toll restrict prefix 2 Valid range 0 D 1 4 97 digits 454 457 Toll restrict prefix 3 Valid range 0 D 1 4 97 digits 458 461 Toll restrict prefix 4 Valid range 0 D 1 4 97 digits 462 465 Toll restrict prefix 5 Valid range 0 D 1 4 97 digits 466 469 Toll restrict prefix 6 Valid range 0 D 1 4 97 digits 470 473 Toll restrict prefix 7 Valid range 0 D 1 4 97 digits 474 477 Toll restrict prefix 8 Valid range 0 D 1 4 97 digits 478 486 Ist 9 digit phone number prefix excepted Valid range 0 9 4 digits 97 from toll restriction 487 495 2nd 9 digit phone number prefix excepted Valid range 0 9 4 digits 97 from toll restriction 111 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Refer to Section on Description Control Digits Page 496 499 Four digit emergency access number Valid range 0 9 4 digits 97 exception from toll restrictions 500 Maximum phone number length allowed Valid range 1 20 97 If this parameter is greater than 20 an entry of 20 is assumed 501 512 Sta
114. eters contains a 9 digit telephone number or prefix exempted from toll restrictions If the Land Line Signaling Type is DTMF the valid range for each digit is 0 9 A D If pulse the range is 0 9 Emergency Access Number Contains the 4 digit emergency access number excepted from toll restriction The valid range for each digit is 0 9 A D Signaling Mobile Signaling Ring Signaling Enable Multiple Ringing to Mobiles Enables disables multiple ringing to mobiles The default is one ring signal event to the mobile Frequency of Ring Signal Generated to Mobile Permits the sound of the ring signal sent to the mobiles to be customized Choices are Low or High frequency pairs of tones The high frequency pair may be advantageous in high noise environments The low frequency pair may be more pleasant in quiet environments Rings Detected on Telephone Line before Mobile Signaling Determines the number of rings the unit must receive from the landline before generating ring signaling to mobiles Valid range is 1 9 Signaling Pretime Selects the time for signaling pretime the period between PTT and generation of the first tone This delay ensures a complete RF path 1s established before signaling commences 04 15 42 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Station Identifier NOTE The terms SID Station Identifier and CWID Continuous Wave Identifier are used here interchangeably SID on Patc
115. facircuit module is removed from the system it is desirable to lay it on a conductive surface such as a sheet of aluminum foil that is connected to ground through 100k of resistance 7 When soldering be sure the soldering iron is grounded and has a grounded tip 8 Prior to connecting jumpers replacing circuit components or touching CMOS pins if this becomes necessary in the replacement of an integrated circuit device be sure to discharge any static build up as described in procedure 1 Since voltage differences can exist across the human body it is recommended that only one hand be used if it is necessary to touch pins on the CMOS device and associated board wiring 9 When replacing a CMOS integrated circuit device leave the device in its conductive rail container or conductive foam until it is to be inserted into the printed circuit module 10 All low impedance test equipment such as pulse generators etc should be connected to CMOS device inputs after power is applied to the CMOS circuitry Similarly such low impedance equipment should be disconnected before power is turned off 11 Replacement modules shipped separately from the factory will be packaged in a conductive material Any modules being transported from one area to another should be wrapped in a similar material aluminum foil may be used Never use non conductive material for packaging these modules 3 04 15 Foreword PL1877A Microprocessor Radio Telephone Int
116. fore allowing either a direct channel access or paging input Direct Access Timer Determines overall talk time permitted from the landline caller to the mobile before automatic disconnect occurs Applicable only if direct access is enabled Revert to Overall Timer on Detection of Carrier If enabled the PL1877A will switch from direct access time to overall access time which is considerable longer if mobile activity is detected during a direct access call NOTE If Wildcard access is required to perform this function in conjunction with the paging option this parameter is ignored CTCSS Strip Output During Direct Access Time Controls whether CTCSS CDCSS is sent with the voice message during the direct access time It applies only if the Direct Access parameter is also enabled When enabled it allows semi private pages on the radio channel Mobile units with microphones on hook will not be aware of the voice page Only the mobile unit that the voice page was directed to hears the page unless a mobile is in the monitor mode Emergency Call Direct Access Enables disables the Emergency Call Direct Access feature Emergency Call Direct Access allows a land line or attendant to gain direct access via the command when direct access is disabled Mobile Ring Signaling Enables disables mobile ring signaling prior to direct channel access 04 15 36 PL1877A Microprocessor Radio Telephone Interconnect PC Programming AccesshRel
117. ft AN NOTE A Before displaying the Help Screen the patch attempts to clear the monitor screen and return the cursor to the top left corner However due to the wide variety of video display terminals available some monitors may not allow these actions and the Help Screen is displayed starting at the current cursor position This should not cause any problem due to the scrolling nature of the display on all terminals F OP1 OP2 VALUE lt cr gt Fill Parameter Block With Value OP1 Start Parameter OP2 End Parameter D OP1 OP2 lt cr gt Display parameter block OP1 Start Parameter No OP2 End parameter No Ctrl E Reload EEPROM Default Parameters and Exit Ctrl N Reload NVRAM Default Parameters and Exit Ctrl X Exit lt cr gt Change parameter starting at lt cr gt Change the current parameter to Ctrl J or Dn Arrow Decrease one parameter Ctrl K or UpArrow Increase one parameter Ctrl U or PgUp Increase ten parameters Ctrl D or PgDn Decrease ten parameters lt gt Return to main menu RS 232 Help Screen 77 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Clear Parameters Parameters may be cleared by entering the command sequence 1 OP2 lt cr gt where is the starting parameter number and OP2 is the ending parameter number Display Parameters Parameters may be displayed on the screen by entering the command sequence D OP2 cr where i
118. ging General Paging CTCSS Strip Output for Paging Tones When enabled causes CTCSS Stripping during transmission of paging tones Other radio channel users 1 with microphones on hook are not annoyed by the paging call tones or data 6 dB octave De Emphasis of Paging Tones Enables disables the 6 dB octave de emphasis or reverse pre emphasis of paging tones Applies to transmit only Enabling increases the amplitude of the low frequency tones when audio is injected into the EIA microphone input of the station Higher modulation of the transmitter during signaling occurs counteracting the effect of pre emphasis Pre emphasis which primarily benefits only voice audio takes place in the IDC circuit Paging Format Selects a Paging Format type Action to Take on Input Error from Telephone Line Selects the type of action to take when the time allotted for receiving the first paging digit expires or improper telephone line dialing is received Mobile Answer Timer after Paging Tones Determines the time allowed for a mobile to answer a page This time is measured from immediately after the page is transmitted 45 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Phone Line Attd DTMF Dialing Inter digit Time Selects the time allowed between individual digits entered as paging input Number of Times to Repeat Paging Determines the number of times to repeat the page The valid range is 0 8 Consult a
119. h Release Enables disables automatic transmission of Station ID using Morse Code on patch release The station call identifier letters and numbers must also be programmed into its designated parameters SID Only After Station PTT If enabled the SID will be generated only if a station PTT has occurred since the last SID If disabled the SID will be generated regardless of whether station PTT occurred SID Transmission Time Cycles Edits the time between automatic Station ID transmissions Valid range is 0 59 minutes If set to 0 automatic periodic CWID is disabled Station Identification Contains the one to 12 digit Station ID This ID is transmitted in Morse Code automatically at the pre set time if the CWID is enabled Valid values are 43 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Paging File Input Output Service Adjust Installation Basic Operation Access Release Signaling 80 view Help 18 080 RE Mobile General Paging Format gt Model ITI6000 Paging Telephone Line Paging Enabled from Telephone Line Lines 1 amp 2 Enables disables access to the paging option from a landline originated call Telephone Line Group Calls Enabled Enables the ability of landline users to cause generation of 2 Tone group calls Number of Digits Accepted from Telephone Line Determines the number of digits accepted from landline user for paging The range is from 0 to
120. harp bends Make connections appropriately Power Supply An optional ac power supply XACO0001A is available from GAI Tronics if power is not available from the radio The Model 3308 00750 10 Power Supply is designed for use with 220 V ac applications 11 04 15 Installation PL1877A Microprocessor Radio Telephone Interconnect P1 Radio Connector The 16 pin radio connector P1 pin designations are shown below Refer to the applicable section of this manual for your specific radio for more detailed information on its installation Radio Connector Pinout P1 Radio Connector Pin Chart Pin No Wire Color Function Red Black PL Strip Red PL Strip Return Orange Monitor Orange Black Monitor Return White PTT Green PTT Sense White Black Data TX TPL and DPL signal output Blue White TX Audio Blue Black TX Audio Return Green White RX Audio Return Green Black RX Audio Black PL Detect nA N Blue Carrier Detect Black White Optional Input 1 Red White Patch Inhibit A Not connected Optional Input 2 The PL1877A has been designed with several diagnostic tests to assist you in set up and troubleshooting Entry into the diagnostic mode is made by simultaneously pressing the UP and DOWN buttons To step to another test once the diagnostic mode h
121. he wildcard access feature functions as described for selective signaling follow the steps of this section 1 Ifyou wish to allow only the paged mobile user to answer a page without direct access restrict mobile access to users of multi digit access prefixes by setting parameter 38 to 1 Also disable all standard multi digit access prefixes by setting parameters 362 385 to FF hexadecimal FF 2 Determine how many digits you want in wildcard access prefixes The allowable range is 1 6 3 Determine the manner in which the mobile s capcode digits or user ID is to be encoded into the wildcard prefix For example suppose you have decided that wildcard prefixes are to consist of five digits represented by X X X X X Since the PL1877A is programmed for multi mode selective signaling you want the 2 digit user ID represented by YY to be encoded into the wildcard prefix There are a number of ways you can encode the user ID into the wildcard prefix Listed below are just a few XXXYY YYXXX XYXYX XYXXY YXXYX 4 Fill in any remaining digits with specific digits or wildcard digits Suppose you have chosen Y X X Y X as your wildcard pattern You must now determine what will be placed in those locations marked by X You may either place fixed digits 0 9 A D in these positions or you may place wildcard digits F in them Of course you may also place a mixture of fixed and wildcard digits in them There are numerous possibilities for the re
122. her electrical surges This equipment is Hearing Aid Compatible HAC The telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device including fax machines to send any message unless such message clearly contains in a margin at the top or bottom of each transmitted page or on the first page of the transmission the date and time it is sent and an identification of the business or other entity or other individual sending the message and the telephone number of the sending machine or such business other entity or individual The telephone number provided may not be a 900 number or any other number for which charges exceed local or long distance transmission charges User Instructions Canada CP 01 Issue 8 Part 1 Section 14 1 NOTICE The Industry Canada label identifies certified equipment This certification means that the equipment meets certain telecommunications network protective operational and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document s The Department does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection The customer should be aware that compliance with the above conditions m
123. hese cases reducing the timing capacitor to a much smaller value produces the required results for example changing C11 on a MICOR repeater TLN4662A squelch gate module from 68 uF to 4 7 uF 3 60 Second Mobile Inactivity Timer In the enhanced VOX simplex mode the land line caller cannot be interrupted by the mobile until the 30 second time out Therefore it is possible for the mobile to hear the warning ticks and not be able to reset the inactivity timer because the landline party is talking Therefore it is recommended that the mobile inactivity timer parameter 122 be set to 3 minutes of mobile inactivity in enhanced VOX simplex systems OPTIONAL AC REVERSE BURST INHIBIT N 362 CDN6008 REV BURST ORANGE BLACK T REVERSE BURST RETURN CIRCUIT o RED BLACK 5 PL STRIPPING TD CD BLACK 4 PL DETECT PL DECODER BLUE WHITE 5 MIC HI GREEN WHITE 6 RX AUDIO DC POWER CABLE MULTICONDUCTOR INTERFACE SUPPLIED 12 BLACK SUPPLIED A GROUND Wi NOT S eem EARTH GROUND WIRE NOT SUPPLIED be ee 22 Intercabling Diagram Maxar 80 Control Station to PL1877A 04 15 148 PL1877A Microprocessor Radio Telephone Interconnect PL1877A Radio Installation MICOR RCB Repeater PL1877A Half duplex mode To facilitate easier installation and servicing the s
124. hich outputs a logical high upon a reduction of high frequency noise mobile carrier detected The line is read by the microprocessor being an input to the SPI serial peripheral interface bus via U205 which then validates detection of a mobile transmission Reconstituted analog processed transmit audio enters line driver U210 functioning as a constant current driver This configuration allows the PL1877A to bridge the microphone input circuit without loading it Q221 Q222 and Q223 function as an audio switch muting the TX audio path in the receive mode Logical inputs from the station PTT sense COR IN PL sense Patch Inhibit and options are selected by U205 Then they are fed to the host processor via the SPI wire under control of bus line MISO_D synchronized by serial clock All logical outputs to the station TX PL disable PTT and MON are under control of the HOST processor through serial to parallel data latch U204 U204 interfaces with the processor via the SPI bus The logical outputs then are directed to the appropriate driver as an output synchronized by the SCK line from the host processor A logic high on the PTT line turns on Q205 sinking its drain to ground and providing the PTT to the station transmitter In a similar fashion the MON high turns on Q206 or PL strip turns on Q207 activating optical relays U208 and U209 respectively This scheme provides a very high degree of isolation and assures flexible int
125. his wire must be as short as practical not coiled and fastened securely to the base station chassis If this is a control station is a repeater system that transmits PL DPL during transmit turn off delay it is necessary that the repeater be set for zero turn off delay See Note 2 All other parameters are programmed as applicable to system requirements Refer to the Parameters Modification Procedures and then the Level Setting sections of this manual eme SOS 0 1 PL detect input required 70 0 signal search 1 enhanced VOX requires the enhanced VOX option NOTES 1 MAXAR Quadrature Detector Adjustment can cause receiver response time problems especially in DPL systems This can adversely affect PL1877A operation especially in the Signal Search mode The following procedure ensures the shortest possible receiver PL DPL response time and is the procedure currently being used on all MAXAR MOXY and MAXAR 80 radios being shipped from the factory a Transmit into a 50 ohm load at 13 8 V b Note meter 2 quadrature output using a high impedance DVM may be necessary to measure on the radio circuit board if the meter 2 wire was used in the PL1877A installation c Dekey the radio d Inject a 10 7 MHz signal into the IF of the MAXAR radio e Adjust the quadrature coil L18 or L23 for a meter 2 reading as measured in step b 0 1 V dc This procedure reduces or eliminates the pulse to the PL
126. ide Restriction Starting with 9 When the PL1877A is programmed such that phone numbers starting with 9 cannot be dialed users of this multi digit prefix security code will nevertheless be allowed to dial them Override Restriction of Length of Numbers When the PL1877A is programmed such that mobile users can only dial phone numbers with a quantity of digits lt N users of this multi digit pre fix security code will nevertheless be allowed to dial numbers with a quantity N Toll Restrict Prefixes 1 8 Disables the override restriction on each of the eight toll restriction prefixes AccesshRelease Mobile Initiated Multi Digit Prefixes Multi Digit Prefixes 4 allowed Each of these four prefixes contains a 1 to 6 digit multi digit access prefix The valid range of digits is 0 9 Multi Digit Override Switches Each multi digit prefix code can be programmed to override certain restrictions on a mobile originated call This allows assignment of specific privileges to groups of mobile users Each group can be given its own multi digit access prefix code NOTE A restriction can only be overridden by entry of the security code See also Security Code Overrides Access Release Mobile Initiated Multi Digit Release Codes General Multi Digit Release Code Contains the 6 digit general multi digit release code The valid range for each digit is 0 9 A D Multi Digits Release Codes Each one of these four multi digit release code
127. iminator detector is 80 mV gms 8 dB High level speaker is 2 5 Vams 6 dB to 8 dB Low level speaker is 0 45 Vrms 8 dB Carrier Detect Source Determines the method for carrier detection e Use of noise operated Internal Squelch requires discriminator detector audio e Use of RX Audio VOX requires that the source of receive audio is muted i e speaker audio The external logic carrier detect also requires that the polarity match the radio s logic carrier detect output Some radios require internal jumper changes to select the RX audio source discriminator or speaker audio Refer to the radio manual for specific help on jumper settings 25 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect External Logic Carrier Detect Polarity If Carrier Detect Source has been set to external this determines the polarity of the Logic Carrier Detect Input as active low or active high CTCSS Validation of Carrier Disables or Enables validation of the carrier detect by CTCSS detect input e Carrier squelch only systems should have this parameter disabled e If enabled the CTCSS detect input polarity must also be set to match the radio CTCSS Detect Input Sets the CTCSS detect input polarity as either active high or active low This must be set to match the polarity of the radio whenever CTCSS validation of carrier is selected PTT Sense Input Allows selection of the polarity of the PTT Sense Input as eithe
128. inuing dialing To place a pause in an auto dial telephone number enter a DTMF at the desired point For example if you want the PL1877A to dial 9 pause 948 1490 enter the following into the auto dial location 9 9481490 If the PL1877A is programmed for pulse dialing you can cause the PL1877A to dial several auto dial digits in pulse then pause and switch to dialing the remaining digits in DTMF This is called a revert since the PL1877A reverts from pulse dialing to DTMF dialing To place a revert in an auto dial telephone number enter a DTMF at the desired point For example if you want the PL1877A to dial 9 revert 948 1490 where the 9 is dialed in pulse and 948 1490 is dialed in DTMF enter the following into the auto dial location 9 9481490 NOTES Only one revert can be placed in an auto dial telephone number If you place more than revert in a number all reverts subsequent to the first will only cause the PL1877A to pause in dialing Two adjacent pauses or reverts cannot be entered into an auto dial telephone number This is because and are commands that cause the PL1877A to perform certain functions see the paragraphs below Also a pause or revert cannot be the last digit of an auto dial telephone number If you wish to cause a long pause simply modify the pause duration via parameter 128 The PL1877A automatically pauses when a revert character 15 encountered so it is not necessary
129. io Telephone Interconnect Multi Digit Release This feature requires entry of a DTMF suffix after the or standard release command If the PL1877A does not receive this suffix it will not respond to the release command This is used when it is desirable to allow the mobile user to dial a DTMF without causing phone line disconnection There are 5 available release codes one general multi digit code and four specific multi digit codes Linking Multi Digit Release to Multi Digit Access When it is desired to have all mobile users employ the same release code the general multi digit release code is sufficient However for added security it may be desirable to prevent the PL1877A from disconnecting unless it receives a multi digit release code from the same mobile user who originally entered the multi digit access code For example suppose the multi digit access prefix 2 is 786 and the general multi digit release suffix is 999 When a mobile enters 786 the PL1877A accesses the phone line To disconnect the mobile user would enter 999 However since 999 is the general multi digit release code that is known to all users of the system any other mobile user could disconnect the call in progress In addition to the general release suffix the PL1877A provides four other release suffixes each of which corresponds to one of the multi digit access prefixes The PL1877A can be programmed to require the corresponding multi digit release cod
130. ions that can be overridden by the security code Security Code Table No Restriction 1 No mobile call origination No overriding of access time limit by command No mobile access of busy phone line by command No redialing 2 3 4 Mobile user restricted to use of auto dial feature no manual dialing 5 6 No autodialing 7 No dialing of numbers starting with 0 8 No dialing of numbers starting with 1 9 No dialing of numbers starting with 9 No dialing of numbers greater than length of N No dialing of number starting with a toll restrict prefix of 1 No dialing of number starting with a toll restrict prefix of 2 No dialing of number starting with a toll restrict prefix of 3 No dialing of number starting with a toll restrict prefix of 4 No dialing of number starting with a toll restrict prefix of 5 No dialing of number starting with a toll restrict prefix of 6 No dialing of number starting with a toll restrict prefix of 7 No dialing of number starting with a toll restrict prefix of 8 Limiting Interconnect Access to Users of Multi Digit Prefixes The PL1877A can be programmed to allow access to the phone line only if the mobile user enters a multi digit access sequence This feature can be used to prevent the PL1877A from responding to the basic access commands and n 61 04 15 PC Programming PL1877A Microprocessor Rad
131. is again awaiting paging input Then he enters the paging input digits for the second mobile This process continues until all the desired mobiles have been paged NOTE While the PL1877A is awaiting input digits from the attendant or after the PL1877A has generated several busy tones to the attendant and is waiting for the channel to clear the PL1877A de accesses the phone line This is to allow the PL1877A to detect whether the attendant telephone is placed on hook If it is then the PL1877A terminates the call Mobile User Mobile Revertive Signaling A mobile can selectively signal another mobile using the revertive signaling feature of the PL1877A The mobile dials the revertive code and the appropriate paging input digits capcode digits or user ID After monitoring the channel for activity the PL1877A sends the paging sequence Group Calls A group call is a paging sequence that alerts several mobiles portables pagers at once The PL1877A supports group calls for 2 tone paging The ability of landline attendant and mobile users to initiate group calls can be independently enabled or disabled via parameters 1009 1010 and 1011 119 04 15 Features PL1877A Microprocessor Radio Telephone Interconnect If a landline user attempts to transmit a group call when parameter 1009 specifically forbids group calling the PL1877A disconnects If an attendant user attempts to transmit a group call when parameter 1010 specifically fo
132. itch notch filter OFF 0 Signal Search Simplex Mode Description The standard signal search frequency is two per second or every one half second The standard search duration is 20 ms If these times are not adequate slower transmitter relays etc they may be adjusted to fit the individual requirements in the following ranges Frequency 4 per sec to once every 2 5 sec Duration 15 100 ms 83 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Installation The frequency is stored in parameter 358 Determine the number of 25 ms periods in the required frequency For example if a frequency of 1 sample per second is desired the value required would be 40 hexadecimal 28 40 x 25 ms 1000 ms 1 sec The duration is stored in parameter 359 Determine the number of 5 ms periods in the required duration For example if a duration of 40 ms were required the value would be 8 8 x 5 ms 40 ms Number of 25 ms periods in the signal search frequency Range 10 100 Number of 5 ms periods in the signal search sample duration Range 3 20 Enhanced VOX Simplex Mode oe l enhanced VOX attention getting ticks 0 Enable enhanced VOX attention getting ticks 1 These ticks are sent to the landline user at the beginning of a mobile originated call Their purpose is to hold the landline user s attention until the mobile user seizes control of the audio path kee
133. ith Selective Signaling The wildcard access release feature can provide added security to the selective signaling feature Selective Signaling without Direct Channel Access In this situation the PL1877A must receive a mobile access command subsequent to paging the mobile If the PL1877A does not receive this command within a specified time period it normally disconnects the telephone user To prevent anyone except the paged mobile user from answering the call you can program the PL1877A to restrict mobile access to users of wildcard access prefixes Then you can program the wildcard template such that wildcard access requires that the mobile users include their capcode digits or user ID in a wildcard prefix used to answer a page For example if the PL1877A is operating in single mode selective signaling and the mobile user s QuickCall II capcode is 023 you can program the PL1877A to allow that mobile user to answer a page only if they include the digits 0 2 and 3 in their wildcard access prefix If the PL1877A is operating in multi mode selective signaling and the mobile s user ID is 56 you can program the PL1877A to allow that mobile user to answer a page only if the digits 5 and 6 are included in the wildcard access prefix 04 15 74 PL1877A Microprocessor Radio Telephone Interconnect Operator Instructions Selective Signaling with Direct Channel Access In this situation the PL1877A grants direct channel access to the tel
134. l Digits Page 46 Allows 9 as the first telephone digit 0 Don t allow 97 1 Allow 47 Allows 1 as the first telephone digit 0 Don t allow 97 1 Allow 48 Allows 0 as the first telephone digit 0 Don t allow 97 1 Allow 49 Determines whether toll restriction applies 0 Does not apply 98 to auto dial numbers 1 Applies Default 0 50 Determines whether access command is 0 Don t require 101 required from a landline user on line 1 1 Require before allowing direct channel access or Default 1 selective signaling input 51 Determines whether access command is 0 Don t require 101 required from attendant user before 1 Require allowing a direct channel access or Default 1 selective signaling input 52 Enable or disable SID on patch release 0 Disable 95 1 Enable 53 Determines whether the mobile user is 0 Don t restrict 98 restricted to using the auto dial feature for 1 Restrict dialing telephone numbers Default 0 54 Allows a mobile user to access a busy 0 Don t allow 103 phone line with the command 1 Allow Default 0 55 Enables disables mobile modification of 0 Disable 90 auto dial numbers 1 Enable Default 1 56 Determines whether the station repeater 0 Disable 103 enable feature is enabled or disabled 1 Enable Default 0 57 Enables or disables a mobile users ability 0 Disable 90 to modify parameters with a DTMF 1 Enable keypad Default 0 58 Enable or disables landlin
135. lace Note There are two JU401 s shown on the board pictorial The correct one for this function is the one is series between U401 pin 13 and Q409 base This resistor allows pin 13 of U401 to swing between detectable logic levels Remove C428 and replace it with a 1 pF capacitor observing polarity Run a wire form 0401 pin 13 to J601 pin 4 Tone PL reedless type TRN6207A and similar Run a wire from U401 pin 28 on the PL deck to J601 pin 4 Digital PL TRN6207A and similar Run a wire from U301 pin 7 on the DPL deck to J601 pin 4 145 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect 4 Reverse Burst Disable necessary for signal search mode only Tone PL reed type TRN6177C and similar Remove the lead on the PL deck that comes from J601 pin 1 PL on off from hang up box and solder it to Q406 base Solder the supplied 01 uF RF decoupling capacitor between base and emitter of Q406 Connect JU401 to HD NOTE There are two JU401 s shown on the board pictorial The correct one for this function is the one that grounds the emitter of Q409 when connected to pin HD Tone PL reedless type TRN4237A and similar Remove the lead on the PL deck that comes from J601 pin 1 PL on off from hang up box and solder it to U401 pin 36 Remove the lead on the PL deck that comes from J601 pin 2 hang up box ground and solder it to the junction of C414 and R408 on the PL deck Remove R421 on the PL
136. lay in binary the value 0 253 binary 255 or 254 indicates an error has occurred Test 10 HC11 DSP Communications In this test each radio input is assigned a corresponding LED to indicate its state active or inactive If the LED is lit the input is active if the LED is not lit the input is inactive Beginning with the least significant LED the LEDs represent e PTT Sense Input P1 pin 6 e Carrier Detect Input P1 pin 13 e PL Detect Input pin 12 e Patch Inhibit Input pin 15 e Squelch Detect Reduction of RX white noise e General Purpose Input 1 P1 pin 7 e General Purpose Input 2 P1 pin 16 e General Purpose Input 3 pin 14 Test 11 TX Audio Port In this test the circuitry associated with TPL and paging is checked Upon entry into this test the PL1877A generates 1800 Hz at the parameter selected Pressing the UP button increments the output level of the TPL or DPL signal It also causes the new level to be saved to EEPROM Pressing the DOWN button decrements the output level ofthe TPL or DPL signal It also causes the new level to be saved to EEPROM Pressing the UP and DOWN buttons simultaneously switches from MDC not applicable to TPL to DPL signal generation The output level associated with the newly selected signaling type is written to the circuitry The most significant LEDs display binary 2 for TPL paging and binary 3 for DPL paging Pressing DOWN and PATCH ON OFF while in TP
137. ld recognize as off hook 3 Connect this voltage across the PL1877A s TIP and RING P404 pins 2 3 4 Press the DOWN and PATCH ON OFF buttons simultaneously The PL1877A samples the voltage and stores it as the new off hook threshold and then returns to the normal operation of Test 6 To abandon the off hook adjustment without changing the current threshold press the UP and PATCH ON OFF buttons simultaneously while the PWR LED is flashing The new off hook threshold does not change unless the value of parameter 163 is changed or the threshold is again modified through Test 6 Test 7 Active Line Swap If the PL1877A is equipped with the second line option the phone line used for all other tests may be selected by pressing the UP button A DTMF is routed out the active phone line The least two significant LEDs refer to the LED assignment diagram on page 13 give a binary indication of the phone line selected Test 8 Network Tone Decoding This test accesses the phone line and the three most significant LEDs refer to the LED assignment diagram on page 13 indicate the detection of e Dial Tone When dial tone is detected LED 1 the most significant LED bit 7 lights e Busy Tone When busy tone is detected LED 3 lights 15 04 15 Installation PL1877A Microprocessor Radio Telephone Interconnect Test 9 HC11 DSP Communications In this test the HC11 and DSP communication paths are checked The LEDs should disp
138. le revertive signaling 0 Enable mobile revertive signaling 1 Default 0 General Selective Signaling Characteristics Selective Signaling Password Refer to Direct Access Selective Signaling Password in the Parameter Modification Procedure section on page 101 of this manual Paging Tone Transmission Characteristics Parameter Function Deactivate the PL strip output during transmission of selective signaling tones 0 Enable the PL strip output during transmission of selective signaling tones 1 Disable 6 dB octave de emphasis of selective signaling tones 0 Enable 6 dB octave de emphasis of selective signaling tones 1 Number of times to repeat signaling Valid range 0 8 If the mobile fails to respond to a page in the time specified by parameter 1008 the PL1877A can repeat the paging sequence and wait again This parameter determines the maximum number of times this occurs before disconnection Mobile answer time time for a mobile to answer a selective call before disconnection in single mode or advancing to a linked user ID in multi mode This parameter is x in the following equation Time 10 seconds 1 x Valid range 0 15 04 15 122 PL1877A Microprocessor Radio Telephone Interconnect Features Selective Signaling Input Parameter Function Disable pulse dial decoding for landline selective signaling input 0 Enable pulse dial decoding for landline selective signali
139. led or enabled Determines whether attendant call origination is disabled or enabled 104 0 Disable 1 Enable Default 1 0 Disable 1 Enable Default 1 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Refer to Section on Description Control Digits Page 16 Determines whether phone line battery 0 Don t allow 93 reversal or loss to disconnect mobile 1 Allow originated call is allowed Default 0 17 Determines whether phone line battery 0 Don t allow 93 reversal or loss to disconnect landline 1 Allow originated call is allowed Default 0 18 Determines whether the mobile user is 0 Don t allow 94 allowed to override the access time limit 1 Allow with Default 0 19 Determines whether the command 0 Resets timer to 1 minute 94 resets the overall access timer to 1 minute 1 Resets timer to duration or the time specified by parameter 357 specified by parameter 357 20 Enables or disables the triple key access 0 Disable 92 feature 1 enable Default 0 21 Enables or disables parameter modification 0 Disable 90 from a remote DTMF telephone 1 Enable Default 1 22 Enables or disables parameter modification 0 Disable 90 via a modem 1 Enable Default 1 23 Determines whether a landline user can 0 Disable 93 disconnect a mobile originated call using 1 Enable the DTMF command 24 Determines whethe
140. ll access timer upon detection of mobile carrier during direct access time 1 Default 0 NOTE If wildcard access 15 required to perform this function in conjunction with the selective signaling option this parameter is ignored Refer to Wildcard Access Release section Direct access duration number of 5 second periods in direct access time This parameter is x in the following equation direct access duration 5 seconds 1 x Valid range 0 8 Default 0 04 15 100 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Direct Access Selective Signaling Password 133 138 139 144 Disable DTMF 1 tone upon automatic phone line access 0 Enable DTMF 1 tone upon automatic phone line access 1 Default 0 Some automated equipment requires a specific indication that the patch is ready to accept DTMF digits When enabled this parameter causes the patch to answer the line with a DTMF 1 instead of the usual beep Don t require access command from landline user on line 1 before allowing direct channel access or selective signaling input 0 Require access command from landline user on line 1 before allowing direct channel access or selective signaling input 1 Default 0 Don t require access command from land line user on line 2 before allowing direct channel access or selective signaling input 0 Require access command from landline user on line 2 before allowing direct channel
141. lly ensure that the LED extinguishes when the RF signal is removed 04 15 18 PC Programming General Description The IAPS Software included on No XAC4000B Programming Bundle Flash Drive is needed to program the features of your equipment It allows entry of programming data into your personal computer for transfer to your equipment The programmed data can be retrieved and edited and printed in hard copy form for record keeping Hardware Software Requirements This software is for use on PCs with Windows 95 or higher operating system not compatible with Vista or Windows NT The computer should have 8 Mb of memory or higher with one serial port Use 800 x 600 or higher resolution to optimize viewing Communication Port Data is transferred via a serial communication port on the computer The port must be RS 232 compatible and either COMI 2 3 or 4 port on the computer can be used Connections The PL1877A must be connected to your personal computer with the 25 pin D connector cable No XAC0004A before the programming software can be used Connect the cable to the COM 1 2 3 or 4 connector on the computer Connect the other end to the programming jack on the PL1877A Installing the Programming Software Start the Windows program and ensure that all other applications are closed Insert the No XAC4000B Programming Bundle Flash Drive into the computer s USB port Select the Start button and then select Run from the
142. locations 10 25 require that the selective signaling option be present Redial redial feature 0 Enable redial feature 1 Default 0 99 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Direct Channel Access Normally the PL1877A generates a ring signal to the mobile and landline users before granting direct channel access However it may be desirable to eliminate this ring ameter Re SSCS 27 Disable mobile ring signaling prior to direct access 0 Enable mobile ring signaling prior to direct access Default 1 Disable land line direct channel access on line 1 0 Enable land line direct channel access on line 1 1 Default 0 Disable land line direct channel access on line 2 0 Enable land line direct channel access on line 2 1 Default 0 59 Disable attendant direct channel access 0 Enable attendant direct channel access 1 Default 0 Deactivate PL strip output during direct access time 0 Activate PL strip output during direct access time 1 Default 0 The time between automatically answering a land line call and generating a beep prompt time 500 ms x 50 ms Valid range 0 15 Default 0 Direct Access Timer s Disable revert from direct access timer to overall access timer upon detection of mobile upon detection of mobile carrier during direct access time 0 Enable revert from direct access timer to overa
143. lt 0 04 15 90 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Mobile Access Methods Mobile Access Command Access Re is S Access command is Default 0 Multi digit Access Don t restrict 34 l access to users of multi digit access prefixes 0 Restrict patch access to users of multi digit access prefixes 1 Default 0 When patch access is restricted to mobiles using multi digit access commands it may be desirable to allow mobile users to answer a landline call without the necessity of entering the multi digit prefix In this case only a or answer if called command would be required Don t allow bypassing multi digit access restriction to answer a landline call 0 Allow bypassing multi digit access restriction to answer a landline call 1 Default 0 NOTE The valid range for parameters 362 385 is 0 9 A D FF Unused digits must be filled with FF hexadecimal FF If all digits are filled with FF the corresponding code is disable Overriding Preprogrammed Restrictions via Multi digit Access Perameter Function OOS For details on the override feature refer to the section on multi digit access release in this manual Wildcard Access 530 535 Refer to the section on Wildcard Access Release in this manual 91 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnec
144. m phone line voltage at which the PL1877A recognizes that the line is in use by an attendant telephone Valid entries are 6 through 48 volts NOTE Talk Battery Voltage must be set to allow manual adjustment of the off hook threshold This must already be programmed into the PL1877A whose threshold voltage is to be changed not merely in the current parameter settings Otherwise the PL1877A automatically resets the off hook threshold to a default value upon exiting the IAPS session Set Local After clicking on the Set Local button the computer sends commands to change the threshold It then reads back the threshold voltage to verify that the change was successful Set Remote After clicking on the Set Remote button you go to the Dialing Screen where you may select the telephone number to access the PL1877A Click on Dial to dial the number You are returned to the previous screen After the PL1877A answers click on the OK button It should now process as described in Set Local Entering Programmed Parameters After all desired parameters are entered select Program ITI6000A from the Input Output Menu on the Main Menu Select the Program ITI6000A tab and click on Program Local or Program Remote Name the programming file and click on OK 04 15 52 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Mobile Programming of Auto Dial Numbers If allowed by programming mobile users can install or modify telephone numbers in
145. maximum quantity of 20 digits If the Land Line Signaling Type is DTMF the valid digits are 0 9 A D E for pause and F for revert For pulse dialing valid digits are 0 9 and A may be followed by any DTMF digit 0 9 A F Signaling Telephone Line Dialing Toll Restriction Allow 9 as First Digit of Phone Number Dialing of phone numbers beginning with the digit 9 can be enabled disabled This feature is useful in prohibiting outside calls from a PABX Allow 1 as First Digit of Phone Number Enables disables use of number as the first digit of a telephone number This is useful in restricting mobiles to local or non toll calls Allow 0 as First Digit of Phone Number Allows or disallows use of the number 0 as the first digit of a telephone number When disabled prevents mobiles from abusing operator assisted calling Toll Restrictions Apply to Autodial Determines whether toll restrictions apply to auto dial numbers Maximum Length of Telephone Numbers Determines the maximum length number of digits allowed of a mobile originated telephone number Valid range is from 1 20 41 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Signaling Telephone Line Signaling Toll Restriction Prefixes Toll Restrict Prefix 8 allowed Allows the user to enter a 4 digit toll restrict prefix The valid range is from 0 D First amp Second Number Excluded from Toll Restriction Each of these param
146. me in seconds that the PL1877A 15 Valid range 0 7 98 to pause and wait for a dial tone when the Default 5 pause character is encountered in an auto dial number 129 Determines the on time for regenerated Valid range 0 8 50 450 89 digits ms Default 1 130 Rotary dial pulse rate Valid range 0 9 89 0 9 pulses per second 1 6 pulses per second 2 7 pulses per second 3 8 pulses per second 4 10 pulses per second 5 11 pulses per second 6 12 pulses per second 7 13 pulses per second 8 14 pulses per second 9 20 pulses per second Default 0 131 The number of busy tone cycles that must Valid range 1 15 93 be received to cause the PL1877A to Default 0 disconnect during a mobile originated call When this parameter is set to 0 busy tone detection is disabled 133 138 Prefix to landline access code the Valid range 0 D 101 access code a landline user must enter as a prefix to the command before being granted direct channel access or selective signaling privileges 109 04 15 Parameter Modification 139 144 Description Prefix to attendant access code the code an attendant user enters as a prefix to the command before being granted direct channel access or selective signaling privileges Control Digits Valid range 0 D PL1877A Microprocessor Radio Telephone Interconnect Refer to Section on Page 145 150 Landline remote para
147. meter Modification Para Refer to ae Section on JDesenpuon _ _ Control Digits 1129 Selected code plan number for single Valid range 00 24 decimal mode and 2 tone paging NOTE This parameter must be loaded such that the 1st digit of the 2 digit decimal code plan number appears in the upper nibble and the 2nd digit appears in the lower nibble Example code plan 23 would be loaded as 23 1130 Preamble tone number for single mode and Valid range 00 25 decimal Motorola EIA 5 Tone paging NOTE This parameter must be loaded such that the Ist digit of the 2 digit decimal tone number appears in the upper nibble and the 2nd digit appears in the lower nibble Example code plan 25 would be loaded as 25 1131 DTMF paging preamble Valid digit range 0 F 1139 1140 Preprogrammed 2 Tone paging digits Valid digit range 0 9 1142 1143 Preprogrammed Plectron paging digits Valid digit range 0 9 1146 NOTE The first 2 digits of a Plectron capcode cannot exceed 35 1147 2805 paging preamble Valid digit range 0 9 1155 1156 1500 paging preamble Valid digit range 0 9 1164 1165 Preprogrammed Motorola EIA 5 Tone Valid digit range 0 9 1170 paging digits 1179 Multi mode paging table See appropriate section 2878 4871 Auto dial location 10 See appropriate section 4890 4891 Auto dial location 11 See appropriate section 4910 49
148. meter programming code when enabled the code must be entered as a prefix to one of the landline programming commands Valid range 0 9 A D FF Default disabled Off hook Voltage Threshold See appropriate section Time between automatically answering a land line call and generating a beep prompt time 500 ms x 50 ms Valid range 0 15 Default 0 177 196 Auto dial location 1 See appropriate section 197 216 Auto dial location 2 See appropriate section 217 236 Auto dial location 3 See appropriate section 237 256 Auto dial location 4 See appropriate section 257 276 Auto dial location 5 See appropriate section 271 296 Auto dial location 6 See appropriate section 297 316 Auto dial location 7 See appropriate section 317 336 Auto dial location 8 See appropriate section 337 356 Auto dial location 9 See appropriate section 357 Overall access time limit Any number greater than 59 sets the overall access time limit to an infinite duration The number of 25 ms periods in the signal search frequency The number of 5 ms periods in the signal search sample duration Valid range 1 59 minutes Default 0 Valid range 10 100 Valid range 3 20 362 367 368 373 374 379 380 385 04 15 The length of time before disconnect that time out warning ticks are generate
149. mplate contains E1234 Also suppose your PL1877A is programmed for multi mode selective signaling If the PL1877A pages user ID 56 the PL1877A requires wildcard access prefixes that match the pattern 61234 Notice that only the right most digit of the user ID was placed in the wildcard prefix 04 15 76 Parameter Modification Procedure Terminal Programming Feature NOTE GAI Tronics recommends using the programming software to set up the PL1877A s initial configuration Terminal programming should only be used for making small modifications to the unit s archive Parameter Modification via RS 232 The terminal programming feature allows the user to observe and or modify parameter locations from a display terminal The RS 232 interface operates at 9600 baud rate and the data format is eight bits character with one stop bit and no parity To program use the XAC0004A Programming Cable available from GAI Tronics RS 232 Operator Instructions To begin the parameter routine when using a local video display terminal connected to the program port first press ENTER five times If an access code has been programmed in parameters 422 427 the display screen prompts you to enter the correct code The RS 232 Help Screen shown below is then displayed on the monitor Parameters may be cleared displayed or modified using the commands listed in the following paragraphs During terminal programming the front panel LEDs strobe from right to le
150. mple suppose you have decided that wildcard prefixes are to consist of five digits represented by XXXXX Since the PL1877A is programmed for multi mode selective signaling you want the 2 digit user ID represented here by YY to be encoded in the wildcard prefix This can be programmed a variety of ways including XXXYY YYXXX XYXYX XYXXY YXXYX Fill in the remaining digits with specific or wildcard digits Suppose you have chosen YXXYX as the wildcard pattern You must determine what will be placed in the locations marked by X These can be either fixed digits 0 9 A D or they may be wildcard digits Of course you may also place a mixture of fixed and wildcard digits in this code There are numerous possibilities such as Y12Y3 Y Program the required values into the wildcard code For the example above you have chosen Y 1 Y 3 amp the required wildcard structure This would be programmed as Notice the Y digits have been replaced by The is referred to as the capcode wildcard digit since it is actually a special wildcard digit that is replaced by capcode digits or the user ID digits To complete the above example suppose you have just paged the mobile corresponding to user ID 56 The telephone user is waiting on a mobile answer since direct access is disabled In this situation the PL1877A doesn t respond to any mobile access codes except those matching the 51x6x Here x represents wildca
151. must be disabled in the IAPS programming e To disable call waiting enter 70 Although this is the standard Disable Call Waiting code some local phone companies may use a different code To verify 70 as the correct code dial it on a phone connected to the phone line you will be calling from e A beep signifies it is the correct code e busy signal means the code does not work Check your phone book or call your local telephone company for information Paging If the Paging option is enabled these parameters must be set e Click on Access Release under the main menu and select Telephone Init Enable Require from Telephone User for Direct Access for Line 1 and Line 2 e Click on Basic Operational Settings and select Programming Privileges Enter the prefix to 0 Telephone Line Programming Code Enter a code here if you want only those with an access code to be able to access the PL1877A parameters remotely This code number must be entered as the Telephone Line Dialing Prefix or the connection attempt will fail After Call Waiting and Paging options have been programmed go to the Input Output on the Main Menu Select Program then click on Program Remote The Dialing Screen appears Select the desired dialing method If you want the computer to dial the PL1877A Interconnect phone number select Enter Number Type the PL1877A Interconnect telephone number at the Enter Number prompt If applicable enter the land line acc
152. n a 3 second window the PL1877A accesses the phone line Disconnection on Phone Line Current Reversal Mobile Origin Enables disables the automatic disconnect of a mobile originated call in case of a loss of telephone loop current or phone line current reversal The loss of loop current on current reversal occurs whenever the landline party hangs up the telephone on many telephone systems Not all phone systems support this feature Number of Busy Cycles Detected Before Disconnect If set to zero busy signaling will not cause disconnection If not set to zero the parameter determines how many cycles of network busy signals are required to cause disconnection during a mobile originated call 33 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Access Release Mobile Initiated Mobile Access Release Security Code Overrides This screen allows editing of parameters applicable to the General Override Features and Overrides for each of the four Multi Digit Prefixes NOTE When setting overrides for individual Multi Digit Prefixes a switch can only be set if the corresponding General Override Switch is enabled Mobile Origination When the PL1877A is programmed such that mobile call origination is not allowed users of this multi digit prefix security code will nevertheless be allowed to originate calls Reset Overall Access Timer When the PL1877A is programmed such that mobile users are not allowed to rese
153. n consist of DTMF digits from 0 D Fill all unused digits with FF hexidecimal FF If all digits are filled with FF the general multi digit release suffix is disabled 71 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect Linking Multi Digit Release to Multi Digit Access When it is desired that all mobile users employ the same release code the general multi digit release suffix is sufficient However for added security it may be desirable to prevent the PL1877A from disconnecting unless it receives a disconnect sequence from the same mobile user who originally entered the multi digit access sequence For example suppose multi digit access prefix 2 were 786 Also suppose the general multi digit release suffix is 999 Thus when a mobile entered 786 the PL1877A would access the phone line To disconnect the phone line the mobile user would enter 999 However since 999 is a general multi digit release suffix that is known to all users of the system any other mobile user could disconnect the call in progress In addition to the general release suffix the PL1877A provides four other release suffixes each of which corresponds to one of the multi digit access prefixes e Multi digit release suffix 1 parameters 386 391 corresponds to multi digit access prefix 1 parameters 362 367 e Multi digit release suffix 2 parameters 392 397 corresponds to multi digit access prefix 2 parameters 368
154. n seconds that the PL1877A pauses and waits for dial tone when pause character is encountered in auto dial number Valid range 0 7 This parameter is x in the following equation pause delay 1 second x 1 Default 5 Don t restrict mobile user to using auto dial feature for dialing telephone numbers 0 Entry of Auto dial Numbers The following information provides the valid range for auto dial digits 1 Pause Store a hexadecimal E The pause character allows a pre programmed amount of time in seconds to pass before continuing with the auto dial number See parameter 128 2 End Store a hexadecimal FF NOTE If the auto dial number is less than 20 characters an END character is necessary If the auto dial number including any reverts and or pauses is 20 digits in length the END character is not necessary 3 Revert Store hexadecimal F The revert character causes a revert from pulse dialing to DTMF if pulse dialing is selected via parameter 31 A revert cannot be made from DTMF to pulse The revert is followed automatically by a pause Only one revert may be used per auto dial number Any subsequent reverts are treated as pauses Refer also to the section on mobile programming of auto dial numbers on page 82 04 15 98 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification 4 Digits Valid range 0 9 A D Function SSCS 5171 5190 Auto dial location 25 NOTE Auto dial
155. n though protection devices are provided in CMOS integrated circuit inputs the protection is effective only against overvoltage in the hundreds of volts range such as is encountered in an operating system In a system circuit elements distribute static charges and load the CMOS circuits decreasing the chance of damage However CMOS circuits can be damaged by improper handling of the modules even in a system To avoid damage to circuits observe the following handling shipping and servicing precautions 1 Prior to and while servicing a circuit module particularly after moving within the service area momentarily touch both hands to a bare metal earth grounded surface This will discharge any static charge that may have accumulated on the person doing the servicing NOTE Wearing a conductive wrist strap will minimize static build up during servicing 2 Whenever possible avoid touching any electrically conductive parts of the circuit module with your hands 3 Power down the unit before installing or removing the circuit module 4 When servicing a circuit module avoid carpeted areas dry environments and certain types of clothing silk nylon etc because they contribute to static build up Similarly disconnect the test probe prior to removing the ground lead 5 All electrically powered test equipment should be grounded Apply the ground lead from the test equipment to the circuit module before connecting the test probe 6 I
156. nabled or disabled 1 Enable Default 1 37 Determines whether mobile DTMF 0 Disable 89 regeneration after call is established is 1 Enable enabled or disabled Default 1 38 Allows the patch access to users of multi 0 Don t restrict patch access 91 digit access prefixes to be restricted or 1 Restrict patch access unrestricted Default 0 39 Determines whether multi digit release 0 Don t tie release codes 92 codes are tied to multi digit access 1 Tie release codes prefixes Default 0 40 Determines whether multi digit release 0 Suffixes 92 codes are suffixes to release commands 1 Prefixes prefixes to release commands Default 0 42 Determines whether landline direct 0 Disable 100 channel access on line 2 is enabled or Enabled disabled Default 0 43 Determines whether access command is 0 Don t require 101 required from a landline user on line 2 require before allowing direct channel access or Default 0 selective signaling input 44 Determines whether bypassing multi digit 0 Don t allow 9 access restriction to answer a landline call 1 Allow is allowed Default 0 45 Determines whether DTMF 1 tone upon 0 Disable 101 automatic phone line access is enabled or 1 Enable disabled Default 0 04 15 106 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Refer to Section on Description Contro
157. nal squelch for carrier detect 0 no PL detect input required 1 PL detect input required 0 half duplex 10 0 active low PTT sense input 04 15 154 PL1877A Microprocessor Radio Telephone Interconnect PL1877A Radio Installation MAXTRAC 300 GM300 Base Station Enhanced VOX Mode Installation of the PL1877A to the Max Trac 300 radio requires the MaxTrac GM300 Cable Kit Part No M2000 MAX CBL The radio must be programmed for phone patch operation using Radio Service Software available through Motorola Service Stations If the PL1877A is to be dc powered connect the dc power cable from the patch to the base station power supply If the optional ac transformer and cable is to be used install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A Earth Ground Run the supplied 12 black ground wire from the PL1877A ground terminal to the base station chassis This wire must be as short as practical not coiled and connected securely to the base station chassis Required Parameter Settings Using the Parameter Modification Procedure detailed in this manual set the following parameters N NOTE A With the parameter settings listed below the radio must be internally jumpered to provide de emphasized muted audio JU551 must be in the B position Parameter 1 PL detect 22 155 04 15 PI1877A Radio Installation PL1877A Microprocessor Radio Telephone Interconnect
158. nclature The model number located on the nameplate on the bottom specifically identifies GAI Tronics equipment Ordering Replacement Parts When ordering replacement parts or requesting equipment information please include the complete identification number This applies to all components kits and chassis If the component part number is not known the order should include the number of the chassis or kit of which it is a part and sufficient description of the desired component to identify it Order parts from Customer Service GAI Tronics Corporation 400 E Wyomissing Ave Mohnton PA 19540 US 800 492 1212 Outside US 610 777 1374 Service and Repair Inoperative or malfunctioning equipment should be returned to the factory for repair Please call 1 800 492 1212 to obtain a Return Authorization number published repair prices and shipping instructions NOTE A purchase order or credit card number is required prior to processing non warranty repairs 04 15 2 PL1877A Microprocessor Radio Telephone Interconnect Foreword Safe Handling of CMOS Integrated Circuit Devices Many of the integrated circuit devices used in communications equipment are of the Complementary Metal Oxide Semiconductor CMOS type Because of their high open circuit impedance CMOS integrated circuits are vulnerable to damage from static charges Care must be taken handling shipping and servicing them and the assemblies in which they are used Eve
159. nd 526 is structured according to the following table Third Bypass Parameter Bypasses Bit Restriction 7 11 6 12 5 13 4 14 2 16 1 17 0 18 To bypass a restriction set the appropriate bit from the tables above to 1 If you do not wish the restriction bypassed set the appropriate bit from the above tables to 0 For example suppose the PL1877A is programmed such that mobile users cannot dial telephone numbers starting with 0 parameter 48 0 Also suppose that the PL1877A is programmed to disable the auto dial feature parameter 30 0 also manual dialing of telephone numbers is disabled parameter 53 1 You wish to allow one group of mobiles to manually dial telephone numbers starting with 0 however you do not wish them to have access to the autodial feature On the other hand you wish another group of mobiles to have access to the autodial feature only 04 15 70 PL1877A Microprocessor Radio Telephone Interconnect Operator Instructions To satisfy these differing requirements you create two multi digit access prefixes To those mobiles that must manually dial phone numbers starting with 0 you assign the prefix 1938 to those mobiles that are only allowed to use the auto dial feature you assign the prefix 1941 1938 is treated as multi digit access prefix 1 Therefore it is programmed into parameters 362 367 362 1 363 9 364 3 365 8 366 FF 367 FF In order to bypass the
160. nd wish to store it enter The PL1877A saves your input returns three beeps and waits for you to enter a new auto dial location number followed by a You can either modify another auto dial number or exit the auto dial programming mode by entering or 6 To clear an auto dial location number enter the auto dial programming mode as described in 1 above Then enter the location number to be cleared followed by a Then dial The PL1877A clears the location returns 3 beeps and waits for you to enter a new location number followed by Installation Parameters Radio Interface If the PL1877A is to operate in signal search simplex program parameter 9 1 70 0 If the PL1877A is to operate in half duplex program parameter 9 0 If the PL1877A is to operate in enhanced VOX program parameter 9 1 70 1 NOTE Enhanced VOX option must be present for enhanced VOX to be operational VOX detection threshold for enhanced VOX is more sensitive threshold 45 dBm 0 VOX detection threshold for enhanced VOX is less sensitive threshold 30 dBm 1 Expected phone audio level for enhanced VOX option is high 0 Expected phone audio level for enhanced VOX option is low 1 This parameter determines the maximum gain that can be added to phone line signals that are below the compression threshold If parameter 73 equals 0 gain is 20 dB If parameter 73 equals 1 gain is 30 dB 74 Switch notch filter ON 1 Sw
161. ne Group Frequency Chart Table 4 Using the P number for the third digit of the capcode determine the correct tone group from Table 4 The frequency of the A tone 330 5 Hz is found by locating the intersection of the tone group row with the column headed by the third capcode digit 5 in this example The frequency of the B tone 564 7 Hz in this example is found in the same manner by using the tone group for the fourth capcode digit as listed in the Plectron Code Plan Chart Table 3 121 04 15 Features PL1877A Microprocessor Radio Telephone Interconnect 2805 1500Hz Paging The 2805 1500 capcodes consist of 1 to 6 digits For single mode paging the PL1877A can be programmed to generate a 1 9 digit preamble parameters 1147 1155 1156 1164 prior to the 2805 1500 capcode For multi mode paging you can specify 1 15 2805 1500 digits for each user ID Motorola EIA 5 Tone 5 Tone capcodes consist of five digits If dual addressing is enabled a sixth digit is required Selective Signaling Parameters and Functions Parameter Function Disable selective signaling from a land line caller on line 1 0 Enable selective signaling from a land line caller on line 1 1 Disable selective signaling from a land line caller on line 2 0 Enable selective signaling from a land line caller on line 2 1 Disable selective signaling from an attendant 0 Enable selective signaling from an attendant 1 Default 0 Disable mobi
162. ne et vti intei E 72 Wildcard Access Release Installation escis a esent 73 Wildcard Access Release with Selective Signaling eese eene nennen nente nennen 74 Selective Signaling without Direct Channel Access eee 74 Selective Signaling with Direct Channel Access eese 75 Programming the Wildcard Template for Use with Selective Signaling eese 75 Miscellaneous Information Regarding Wildcard Access Release Feature eese 76 PARAMETER MODIFICATION PROCEDURE ecce ee etes eee ee etos estos to seta to seta sese so seen sese eese eaae eoa 77 TERMINAL PROGRAMMING EBATURE d eter dtes stie uelut detener 77 Parameter Modification via RS 232 a ote eene ed te ives iib e Pete Er BRE 77 RS 232 Operator Instructions eb ge eee d ede e dhe er E ege Bee 77 Parameter Modification via Modem esee esee enne nennen teen reete rennen tene 78 Modem Operator Instructions e St etg e REED ee pe ERE aene ei eee 79 DTMF PROGRAMMING FEATURE etienne ede He eene e eren ee Rae udine 79 UJ TA PP LELTSI ETIN ITE RE 79 Procedure from Landline Telephone eese eee enne enne 80 Procedure from a Mobile or Portable Equipped with DTMF Pad 12 2 esee 81 MOBILE PROGRAMMING OF AU
163. ng allows certain controls characters such as the and to pass through to the phone line to support special applications These applications include local PABX paging call transfers etc For most applications this should be enabled to ensure accurate dialing When enabled only digits 0 9 and A D are regenerated Pseudo DTMF Regeneration Controls regeneration of DTMF after mobile dialing is ended If enabled additional DTMF digits after the cut through timer expires will be regenerated It also mutes the receive audio for the duration of the cut through delay If disabled additional DTMF digits from the mobile are passed through un regenerated 39 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect DTMF On Time for Telephone Line Dialing Selects the digit On Time 1 the duration of the regenerated DTMF burst sent to the telephone network during dialing The valid range 15 50 450 ms Adjustable on time allows the interconnect to work with telephone systems that require longer DTMF bursts This parameter is only available if the Land Line Signaling Type is set to DTMF Rotary Pulse Dial Rate This is only available if the Land Line Signaling Type is set to Pulse Mobile Audio Cut Through Delay Alters DTMF inter digit time allowed to mobile users during manual dialing After the time expires receive audio is cut through to the landline party This timer prevents direct pass through of DT
164. ng input 1 If enabled the PL1877A accepts paging input from a landline pulse rotary telephone You should program parameter 1089 to allow a long inter digit time if pulse dial decoding is enabled NOTE Requiring a landline access command prior to selective signaling parameters 50 43 is incompatible with pulse dial decoding The action taken when time allotted for receiving first selective signaling or user ID digit expires or improper phone line dialing is received 0 Disconnect 1 Revert to ring signaling 2 Revert to user ID 00 if enabled Landline and attendant DTMF dialing inter digit time The time allowed between digits being entered as selective signaling input This parameter is x in the following equation Time allowed 1 second x 1 Valid range 1 5 Selective Signaling Method Parameter Single Mode Parameter Function Type of service signaling selected for landline user is 0 DTMF 4 1500 1 2 5 Motorola EIA 5 Tone 2 Plectron F Multi mode 3 2805 Function The number of digits accepted from the landline user for selective signaling The valid range depends on the type of signaling selected DTMF 2805 1500 0 6 2 Tone 0 3 Plectron 0 4 Motorola EIA 0 6 The number of digits accepted from the attendant for selective signaling The valid range depends on the type of signaling selected DTMF 2805 1500 0 6 2 Tone 0 3 Plectron
165. nly programs a partial program because the user canceled or it failed before the program was completed default parameters are reloaded Input Output Read Local After selecting the Read ITI6000A tab click on Read Local The LEDs on the front of the PL1877A strobe and then the PWR and BUSY LEDs remain illuminated Click on OK after the progress bar reaches 100 After the Read ITI6000A tab menu has been completed you are now ready to continue programming the necessary parameters 04 15 24 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Installation File Input Output Service Adjust Basic Operation Access Release Signalling Paging View Radio Interface Telephone Line Model ITI6000 Installation Radio Interface Parameters These parameters must be set RX Audio Source Allows the installer to match the RX audio source Choices are Detector Discriminator audio prior to de emphasis or from Speaker audio after the de emphasis circuit Use of the internal noise operated squelch circuit requires the audio source be derived from the detector or discriminator Select Detector Discriminator audio Use of the RX audio VOX for carrier detect requires speaker muted audio for its source Select Speaker audio RX Audio Input Level Allows the installer to match the available receive audio level High level discriminator detector is 0 45 Vrms 8 dB Low level discr
166. nnect PL1877A Radio Installation Earth ground Run the supplied 12 black ground wire from the PL1877A GND terminal to the base station chassis This wire must be as short as practical not coiled and connected securely to the base station chassis If this 1s a control station in a repeater system that transmits PL DPL during transmit turn off delay it is necessary that the repeater be set for zero turn off delay See Note 2 Required Parameters Using the Parameter Modification Procedure set the following parameters Sewing OSS 0 No PL detect input required 1 PL detect input required 7 1 PL detect input is active high If parameter 6 0 parameter 7 don t care s 0 active low PTT sense input 70 0 signal search 1 enhanced VOX requires the enhanced VOX option All other parameters are programmed as applicable to system requirements Refer to the Parameter Modification Procedure starting on page 77 and then the Level Setting section on page 17 of this manual NOTES 1 MAXAR Quadrature Detector Adjustment can cause receiver response time problems especially in DPL systems This can adversely affect PL1877A operation especially in the signal search mode The following procedure ensures the shortest possible receiver PL DPL response time and is the procedure currently being used on all MAXAR MOXY and MAXAR 80 radios being shipped from the factory a Transmit into a 50 ohm load at
167. ns a connect beep and cuts through the conversational audio this occurs even if the channel is busy The duration of channel access is governed by the value of parameter 126 Mobile Security Code Privileged User Override Disable control of external devices using the security code 0 Enable control of external devices using the security code 1 Default 0 In some installations it is desirable to operate an external device whenever the security code has been entered by the mobile user An example of such an application would be operating a second PL code This function should not be used in installations where receive audio is used as the mobile carrier indicator parameter 03 0 parameter 05 1 With this parameter enabled the monitor relay activates whenever the security code is received It remains active until the patch disconnects again 416 421 DTMF Security Code Privileged User Override Code Refer to the section on Multi digit Access Release in this manual Station Repeater Enable Feature The station repeater enable feature allows a mobile user to selectively enable the PL1877A and or associated station Until the station repeater enable command n where n is the station repeater enable prefix stored in parameters 428 433 is received the PL1877A will not respond to any mobile commands However the PL1877A transmits ring and or selective signaling in response to phone line activity Upon receiving th
168. nt product specifications and product literature and if applicable shall be fit for the purpose specified in the agreed upon quotation or proposal document If a Seller s goods prove to be defective in workmanship and or material under normal and proper usage or unfit for the purpose specified and agreed upon and b Buyer s claim is made within the warranty period set forth above Buyer may return such goods to GAI Tronics nearest depot repair facility freight prepaid at which time they will be repaired or replaced at Seller s option without charge to Buyer Repair or replacement shall be Buyer s sole and exclusive remedy and the warranty period on any repaired or replacement equipment shall be one 1 year from the date the original equipment was shipped In no event shall GAI Tronics warranty obligations with respect to equipment exceed 100 of the total cost of the equipment supplied hereunder The applicability of any such third party warranty will be determined solely by GAI Tronics Services Any services GAI Tronics provides hereunder whether directly or through subcontractors shall be performed in accordance with the standard of care with which such services are normally provided in the industry Ifthe services fail to meet the applicable industry standard GAI Tronics will for a period of one 1 year from the date of completion re perform such services at no cost to the Buyer Re performance of services shall be Buyer s sole and
169. o be used install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A Earth ground run the supplied 12 or larger wire from the GND terminal on the PL1877A to the base station chassis ground This wire must be as short as practical not coiled and fastened securely to the base station chassis 149 04 15 11877 Radio Installation PL1877A Microprocessor Radio Telephone Interconnect Required Parameters Using the Parameters Modification Procedure in this manual set the following required parameter settings Parameter Seung 0 No PL detect input required 1 PL detect input required 7 0 PL detect input is active low 1 PL detect input is active high 0 active low PTT sense input All other parameters are programmed as applicable to system requirements Refer to the Parameter Modification Procedure starting on page 77 and then the Level Setting section on page 17 of this manual BLUE BLK SUPPLIED OWER CABLE MULTICONDUCTOR INTERFACE SUPPLIED LIGHTNING PROTECTION LOGIC RETURN PTT ey 16 Nr EM Sess EXCITER HI T 18 PL INDICATOR AUX MONITOR RECEIVER WHERE REQUIRED MRTI Intercabling Diagram Micor RCB to PL1877A 04 15 150 PL1877A Micropr
170. ocessor Radio Telephone Interconnect Parameter Programming Methods Terminal Programming 422 427 Remote parameter access code This parameter is the prefix to the 0 mobile DTMF parameter programming command and is also the access code for the terminal programming feature Valid range 0 9 A D FF Unused digits must be filled with FF hexadecimal FF If all digits are filled with FF the code is disabled Default disabled Programming from the Telephone 145 150 If this code is enabled it must be entered as a prefix to one of the land line programming commands 0 for DTMF parameter programming 1 for modem software parameter programming 2 for modem terminal parameter programming Valid range 0 9 A D FF Unused digits must be filled with FF hexadecimal FF If all digits are filled with FF the code is disabled Default disabled DTMF Programming Disable parameter modification from remote DTMF telephone 0 Enable parameter modification from remote DTMF telephone 1 Default 1 Modem Programming Disable parameter modification via modem 0 Enable parameter modification via modem 1 Default 1 Programming from a Mobile or Portable Disable mobile modification of auto dial numbers 0 Enable mobile modification of auto dial numbers 1 Default 1 Enable parameter modification via mobile user with DTMF keypad 1 Disable parameter modification via mobile user with DTMF keypad 0 Defau
171. ocessor Radio Telephone Interconnect Features Parameter Function NOTE If you desire to link user IDs in this manner disable direct access through parameters 58 42 and 59 3 The remaining 15 bytes for this entry consist of the 15 digits of the user capcode Any unused bytes must be filled with FF There are different valid capcode ranges for each of the paging types check parameter descriptions for the appropriate range DTMF capcode Bytes 3 17 contain the DTMF digits to be paged Thus a maximum of 15 DTMF digits can be assigned to a user ID 2 Tone capcode Byte 3 contains the code plan to be used when paging this user ID Refer to the instructions regarding parameter 1129 in determining a value for byte 3 Bytes 4 6 contain the 2 Tone capcode digits Plectron capcode Enter the 4 digit Plectron capcode in bytes 3 6 2805 1500 capcode Bytes 3 17 contain the 2805 1500 pulse digits Thus a maximum of 15 2805 1500 digits can be assigned to a user ID Motorola EIA 5 Tone capcode Byte 3 designates the preamble tone to be used when paging this user ID Refer to the instructions regarding parameter 1130 in determining a value for byte 3 Bytes 4 8 contain the 5 tone capcode Byte 9 is the dual address digit If the dual address tone is to be sent with this page enter a 1 in byte 9 Otherwise enter a 0 Note that byte 9 is used only 1f dual addressing is enabled via parameter 1012 or if bit y is set in byte 1 of this
172. ocessor Radio Telephone Interconnect PL1877A Radio Installation FLEXAR Repeater Install the following modifications additions to the Flexar repeater using the supplied connector pins Female pins are used on J801 Wire colors specified match PL1877A cable wire colors and if followed may assist in any future service 1 RX Detector Audio Run a green white wire from J801 metering socket pin 1 to P901 receiver chassis plug pin 1 male pin Run another green white wire from J901 pin 1 female pin on the receiver chassis to U10 pin 6 detector audio output 2 PL Detect Run a black wire from J801 pin 9 position to P901 pin 2 male pin Tone PL reed type TRN6177 and similar Run another black wire from J901 pin 2 female pin on the receiver chassis to U401 pin 13 on the PL deck Locate and remove the soldered in JU401 and install a 100k 1 4 W resistor in its place Note There are two JU401 s shown on the board pictorial The correct one for this function is the one in series between U401 pin 13 and Q409 base This resistor allows pin 13 of U401 to swing between detectable logic levels Remove C428 and replace it with a 1 uF capacitor observing polarity Tone PL reedless type TRN4273A and similar Run another black wire form J901 pin 2 female pin on the receiver chassis to U401 pin 28 on the PL deck Digital PL TRN6207A and similar Run another black wire from J901 pin 2 female pin on the receiver chassis to U301 pin 7
173. odification PL1877A Microprocessor Radio Telephone Interconnect General Purpose Inputs 04 15 GPI 1 input is active low 0 GPI 1 input is active high 1 Default 0 GPI 2 input is active low 0 GPI 2 input is active high 1 Default 0 Function of programmable input GPI 1 pin P1 14 0 GPI 1 unused 1 Auxiliary carrier detect input Function of programmable input GPI 2 pin P1 16 0 GPI 2 unused 1 Auxiliary carrier detect input NOTE If both GPI 1 and GPI 2 are programmed for auxiliary carrier detect GPI 2 is unused In that event only GPI 1 functions as the auxiliary carrier detect input The auxiliary carrier detect function is used in applications where two repeaters may be sharing the same channel In this situation the auxiliary carrier detect input is connected to the logic carrier detect output of an auxiliary receiver that monitors the repeater transmit frequency The auxiliary carrier detect function is used only to establish that the channel is idle prior to generating mobile signaling ring paging SID etc 86 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Miscellaneous Receiver Input Audio Source The input from the receiver is obtained from either a pre emphasized source requiring de emphasis discriminators and detectors or from a de emphasized flat source volume control or speaker Parameter 01 is set to match the source RX FP o 7 source is pre emph
174. of 10 Valid range 0 15 second increments for a mobile to answer a selective call before disconnection or advancing to an alternate user ID 1089 Landline and attendant DTMF dialing Valid range 0 15 inter digit time the time between digits being entered as selective signaling input 1090 DTMF outpulse timing the number of 50 Valid range 0 8 ms periods in the DTMF digit inter digit time 1091 2 Tone paging tone length the number Valid range 0 8 of 5 second increments in the duration of the first tone of a 2 Tone sequence 1092 2 Tone paging B tone length the number Valid range 0 8 of 5 second increments in the duration of the second tone of a 2 Tone sequence 1093 Plectron paging tone length the number Valid range 0 8 of 5 second increments in the duration of 5 to 4 5 seconds the first tone of a Plectron tone sequence 1094 Plectron paging B tone length the number Valid range 0 8 of 5 second increments in the duration of 5 to 4 5 seconds the second tone of a Plectron tone sequence 1095 2805 Tone off time the number of 10 ms Valid range 0 8 periods in tone off time for 2805 paging 10 90 ms This parameter is x in the following equation 10 ms x 10 ms 1096 1500 Tone off time the number of 10 ms Valid range 0 8 127 periods in tone off time for 1500 paging 10 90 ms 04 15 114 PL1877A Microprocessor Radio Telephone Interconnect Para
175. omputer used to program it the serial port selected should be Local Refer to Input Output I O Settings Local Reading on page 24 e Ifthe PL1877A is located at a remote location a modem must be installed at the correct serial port Select Modem Port See the Modem Installation manual for complete information Make sure your COMM ports are connected properly Input Output I O Settings Read ITI6000A e After the correct COMM port is selected click on the Read ITI6000 tab Input Output x Input Output Settings Dialing Directory Read rri6000 NOTE Once Read ITI6000 begins you will not be able to close or switch from this window until the read either finishes or fails unless you click on Cancel e Select Read Remote for a remote modem installation e Select Read Local for a Local installation Programming information about Read Local follows the Remote modem programming information on page 24 When the progress bar reaches 100 click on OK The expanded main menu is now available that allows you to complete your IAPS programming 04 15 22 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Input Output I O Settings Read Remote For Remote Programming it is recommended that you have a telephone connected to the modem or a modem with a speaker to monitor the connection process Call Waiting If a modem is used and the phone line being used has a Call Waiting feature this feature
176. on via RS 232 NOTE Ifthe PL1877A is configured for land line selective signaling and you wish to allow modem programming you must program the PL1877A to require a access command from the land line caller parameters 43 50 Then to use the modem dial 2 along with any required prefix instead of If you do not program the PL1877A to require a access command the PL1877A interprets 2 as paging input instead of a command to enter the modem programming mode DTMF Programming Feature Operator Instructions Limited programming of the PL1877A is provided from either a standard DTMF Touch Code telephone or from a mobile or portable radio equipped with a Touch Code pad The PL1877A may be programmed to require an access code prefix to provide additional protection against accidental modifications of parameters This code may be different for mobile or portable and land line parameter modification Parameter 21 enables or disables remote programming of parameters via DTMF telephone The default for this parameter is enabled parameter 21 1 Parameter 57 enables or disables mobile DTMF programming of parameters The default for this parameter 1s disabled parameter 57 0 A second PL1877A or similar device for decoding DTMF digits is required to display the DTMF digits from the remote programming telephone location This PL1877A should be placed in parallel with the calling telephone instrument using a modular adapter
177. onal and Maintenance Procedures Buyer acknowledges that any improper use maintenance or modification of the equipment provided hereunder or use of unqualified maintenance or service technicians will severely impair the operational effectiveness of the entire communication system Buyer hereby agrees to indemnify defend and hold GAI Tronics harmless from and against any and all third party claims arising in any manner out of a Buyer s neglect of the equipment b Buyer s use of technicians not authorized by GAI Tronics to service the equipment or c Buyer s improper use or modification of the equipment or failure to follow the operational and maintenance procedures provided with the equipment Limitation of Liability Damages In no event even should circumstances cause the exclusive warranties and remedies set forth in the Warranty section to fail of their essential purpose shall either party be liable for any indirect incidental special or consequential damages including but not limited to loss of use loss of anticipated profits or damages arising from delay whether such claims are alleged to have arisen out of breach of warranty breach of contract strict or absolute liability in tort or other act error or omission or from any other cause whatsoever or any combination of the foregoing 04 15 Publication 43004 019D i Table of Contents FOREWORD REO 1 SCOPEORM ANUAL oeque nU mU E D aute d qe eu 2 NOMENCLATU
178. onds If this parameter is programmed to 0 time out ticks are disabled Default 15 Overall Access Timer Don t allow mobile user to override access time limit with command 0 Allow mobile user to override access time limit with command 1 Default 0 Overall access timer Valid range 1 59 minutes Any number greater than 59 sets the overall access time to an infinite duration Default 1 minute 19 command entered during conversation resets overall access timer to 1 minute 0 command entered during conversation resets overall access timer to duration specified by parameter 357 1 Default 1 04 15 94 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Mobile Inactivity Timer I qos diie ep er deren how longihe PLIST 4 inactivity timer This parameter determines how long the PL1877A keeps the phone line accessed without detection of mobile carrier Valid range 0 14 This parameter is x in the following equation mobile inactivity timer 30 seconds x 30 seconds If set to 15 hexadecimal F the mobile inactivity timer is disabled Default 0 Semi private Operation PL Strip Control Hoga chAsmencdb ier Pesmo Eae SOY 713 activate PL strip relay on access 1 Do not activate PL strip relay on access 0 Default 0 Selectable Features Station Identification SID or CWID 52 Disable SID on patch release
179. one user sends a to release the telephone line The patch confirms release with a series of short beep tones Direct Access NOTE Direct Access is used for portables with no DTMF keypad The landline caller dials the phone patch The unit detects ringing on its line and accesses the phone line Then the patch generates two beeps After ensuring that the channel is clear the patch transmits one 3 second ring signal to the mobile Immediately following this ring the audio paths between phone and radio are established The telephone user may speak over the air according to the instructions regarding conversations outlined previously When the allowed time for direct channel access expires the patch automatically releases the phone line Selective Signaling The landline caller dials the phone patch The unit detects ringing on its line and accesses the phone line Then the patch generates two beeps to indicate it is awaiting input the desired capcode digits or user ID from the phone user When the proper number of digits is received three beeps are generated After ensuring that the channel is clear the signaling sequence is transmitted If the patch is programmed for direct access the audio paths between phone and mobile are established immediately following the signaling transmission The path automatically releases the phone line when the direct access time expires If the patch is not programmed for direct access it waits for a mobil
180. onsolette Enhanced VOX Simplex Mode esee enne nennen ene 140 MAXAR and MOXY hes ete Sri een e esie ese i eee uates v rlee tents 142 MAXAR 80 BASES PE EE 145 e Re eese ete decies eer peer et css ire eae es to e peo ever tpe eques 149 ter RR Cannon E DEREN AAE iR E IRR P E E Eee RR RE M ERR RE 151 L1600 Series Remote 1 dope E eave As dep abies av See ee 153 MSF 5000 Digital Base Repeater Stations eee eene nennen retener nenne trennen nre ene 154 MAXTRAC 300 GM300 Base Station esses esee ee eene teeth en nne nein nest tenen ense tenen test tenente nennen 155 THEORY OF OPERATION 157 POWER SUPPLY Cree GNU RETO RO ERA e RETIRER RR A GRATANTER US 157 MICROPROCESSOR AND DSP MODULE MDDB sess 157 PITAL SIONAL PROGESSING ire ir metri er ra ta teer tpi Rt eterni 158 TEX AUDIO et de ibd ted a t etie ta a d 158 RADIO INTEREAGE dimer ied he esas iai re 159 DINEINTERBACE 4 ERI AOA e rette eei t EN PR er n ERES 160 OPTIONAL LINE 2 INTERFACE ettet tremere iieri erede erede e eiie 160 MAIN CIRCUIT BOARD p ste c 161 DEFINITIONS AND ACRONYMSS esses
181. ovides isolation and impedance matching to the line No dc current flows through T401 but rather only the ac component audio DC loop current flows instead through the constant current circuit comprised of Q401 Q405 and associated components Opto switch U401 serves as the access relay and provides isolation to the phone line from high voltage surges The opto switch is also pulsed at the selected dialing rate by the microprocessor if pulse dialing is required Optional Line 2 Interface The optional line 2 interface provides the ability to answer and originate calls on a second phone line Dual ring detect is provided by U502 necessary to detect ring on line 1 when line 2 is accessed U502a d is configured as two dual polarity comparators Line selection is provided by energizing relay K501 under processor control via LIN_Sel Land line audio is then routed through the same path that line 1 used T401 From there the operation is identical to line 1 04 15 160 161 Main Circuit Board 04 15 Main Circuit Board PL1877A Microprocessor Radio Telephone Interconnect useeu sh ANE cdd Ali L7 48 d EEEH 1 ueni B Boza 1022 __ C sax 8 1 20316 co 90316 T E 4 tin Testy 8 E co x sone Ortu 3 0316 xd YL 7981 gt sit 031 C zai ea JC zezo m CE LIZEH 8 1 PL187
182. pcode Thus since landline users enter only one digit the PL1877A draws the first four capcode digits 8812 from these parameters Since attendant and mobile users enter three digits the PL1877A draws the first two capcode digits 88 from these parameters 04 15 120 PL1877A Microprocessor Radio Telephone Interconnect Features Multi Mode Selective Signaling When the PL1877A is programmed for multi mode selective signaling the user enters only the required user ID from 00 to 99 The capcode is already preprogrammed as part of the user ID Overriding Certain Restrictions for Individual User IDs Each user ID can be assigned certain properties that allow it to bypass specific restrictions on selective signaling For example if group calling is disabled via parameters 1009 1010 or 1011 you can specifically allow it for an individual user ID Refer to page 124 which describes the multi mode paging table Capcode Characteristics DTMF DTMF capcodes consist of 1 6 digits For single mode paging the PL1877A can be programmed to generate a 1 9 digit preamble parameters 1131 1139 prior to the DTMF capcode For multi mode paging you can specify 1 15 DTMF digits for each user ID 2 Tone The 2 tone capcodes consist of 3 digits that specify 2 tones the A tone and the B tone The frequencies for the A and B tones are determined from Tables 1 and 2 on pages 131 and 132 according to the following procedure Suppose you wish to
183. ping the landline user from locking the station in transmit when he answers the telephone The ticks disappear upon mobile carrier detection after the landline user answers the phone Disable enhanced VOX land line transmit timer 0 Enable enhanced VOX land line transmit timer 1 When the patch is being used in the enhanced VOX simplex mode if landline audio is continuous keeping the transmitter keyed for more than 30 seconds the landline transmit timer unkeys the transmitter for 5 seconds to allow the mobile to take control Caution FCC regulations in many services require the landline transmit timer to be enabled Disable mobile go ahead beep 0 Enable mobile go ahead beep 1 The mobile go ahead beep is sent to the mobile user when the PL1877A detects loss of landline VOX It signals him her that it is his her turn to talk Enhanced VOX receive recovery delay number of 50 ms periods in the delay between transmitting and receiving in enhanced VOX mode Valid range 0 8 Some radios have an inherent delay between transmitting and receiving during which the radio receiver and or carrier detect outputs are invalid The PL1877A must be programmed to ignore receiver audio squelch and carrier detect logic during this period Otherwise transmitter cycling could result when receiving dial tone or busy tone on the phone line Enhanced VOX delay Valid range 0 100 Default 100 This parameter determines how long in 5 ms increments
184. power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A Earth Ground Run the supplied 712 or larger wire from the GND terminal on the rear of the PL1877A to the base station chassis ground This wire must be as short as practical not coiled and fastened securely to the base station chassis After this connection has been made the installation is complete Using the Parameters Modification Procedure in this manual set the following required parameter settings Parameter 0 de emphasis 0 No PL detect input required 1 PL detect input required 7 0 PL detect input is active low 1 PL detect input is active high reine 0 active low PTT sense input All other parameters are programmed as applicable to system requirements Refer to Level Setting in the Parameters Modification Procedure section of this manual 04 15 138 PL1877A Microprocessor Radio Telephone Interconnect ENDS AC POWER CABLE E PLIED DC POWER CABLE PL1877A Radio Installation JCTOR INTERFACE SUPPLIED 12 BLACK SUPPLIED X 19 RX DETECTOR PTT MIC LO MIC LO MIC HI LeCD TD PL STRIPPING ai REV BURST INH 784 6 PL DETECT _squeLcH DISABLE EARTH GROUND WIRE NOT SUPPLIED Intercabling Diagram for Signal Search Simplex
185. pplicable rules before exceeding one signal event Paging Paging Format DTMF Paging Parameters DTMF Outpulse Timing Determines the duration of the DTMF digit inter digit time DTMF Paging Preamble Contains a DTMT preamble of up to nine digits for paging Paging Paging Format 1500 Paging Parameters 1500 Paging Tone Off Time Each 1500 digit consists of an ON time and OFF time The OFF time is programmed here the ON time is 100 ms minus the OFF time 1500 Paging Preamble Allows a user to enter a 1500 Preamble up to nine digits for paging 04 15 46 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Paging Paging Format 2805 Paging Parameters 2805 Paging Tone Off Time Each 2805 digit consists of an ON time and OFF time The OFF time is programmed here the ON time is 100 ms minus the OFF time 2805 Paging Preamble Allows a user to enter a 2805 Preamble up to nine digits for paging Paging Paging Format Plectron Paging Parameters Plectron Paging A Tone Length Selects the duration of the first tone of a Plectron paging sequence Valid settings are 0 5 4 5 sec in 0 5 sec increments Plectron Paging B Tone Length Selects the duration of the second tone of a Plectron paging sequence Valid settings are 0 5 4 5 sec in 0 5 sec increments Plectron Paging Digits If less than four digits are required as input from the land line attendant mobile user the remaining digits are s
186. pre emphasized or flat Determines whether RX audio input level See appropriate section Beginning 12 is low or high Determines whether internal carrier detect or external logic level carrier detect will be used Determines whether internal squelch or RX audio VOX is used for carrier detect PL1877A Microprocessor Radio Telephone Interconnect Refer to Section on Control Digits Page 0 Pre emphasized 87 1 Flat Internal carrier detect a External logic level carrier detect Determines whether the carrier detect 0 Active low input is active low or high 1 High Internal squelch m RX audio VOX Determines whether or not PL detect input is required to validate carrier detect Determines whether PL detect input is active low or active high Determines whether patch is half duplex or simplex Determines whether PTT sense input is active low or active high Determines whether the access command is or Determines whether the normal release command is or 0 no PL detect input required 1 PL detect input required Default 0 0 Active low 1 Active high Default 0 0 Half duplex Simplex Default 1 0 Active low High Default 0 0 1 Default 0 0 1 Default 0 Determines whether the mobile call origination is disabled or enabled 0 Disable 1 Enable Default 1 Determines whether landline call origination is disab
187. r active high or active low Patch Inhibit Input Determines the polarity of the patch inhibit input as either active low or active high If the patch inhibit is not used leave set to active low GPI 1 Input Determines the polarity of the general purpose input as either active low or active high Valid only if the GPI 1 input has been enabled RX Audio 2175 Hz Notch Allows enabling of a 2175 Hz notch filter in the path between RX audio and phone line audio and is for special applications only 04 15 26 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Installation Telephone Line Settings Installation Parameters Talk Battery Voltage Select the talk battery voltage as 48 V or 24 V depending on what is supplied by the local phone system or PABX as applicable It will determine the off hook threshold of the interconnect Select Manual Set to allow the user to specify the off hook voltage threshold via the IAPS or Diagnostic Test 6 in the PL1877A See Also Off Hook Threshold 27 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Basic Operation File Input Output Service Adjust Installation EE Access Release Signalling Paging View Help Programming Privileges Model ITI6000 Basic Operation Mode Selection Mode of Operation Selects between Half Duplex Signal Search Simplex or Enhanced VOX Simplex modes e Half Duplex should be chosen when
188. r emergency call direct 0 Disable 102 access is enabled or disabled 1 Enable Default 0 25 Determines whether revert from direct 0 Disable 100 access timer to overall access timer upon 1 Enable detection of mobile carrier is enabled or Default 0 disabled 26 Enables or disables multiple ringing to 0 Disable 103 mobiles 1 Enable Default 0 27 Enables or disables mobile ring signaling 0 Disable 100 prior to direct access 1 Enable Default 1 28 Enables or disables enhanced VOX 0 Disable 84 attention getting ticks 1 Enable 29 Determines whether enhanced VOX 0 Disable 84 landline transmit timer is enabled or 1 Enable disabled 105 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Refer to Section on Description Control Digits Page Enable or disable auto dial feature 0 Disable 1 Enable Default 0 31 Determines whether DTMF or pulse 0 DTMF land line signaling 89 landline signaling is selected 1 Pulse land line signaling Default 0 32 Determines whether PL strip relay is 0 Do not activate 95 automatically activated on access 1 Activate Default 0 33 Determines whether over beep to phone 0 Disable 103 user is enabled or disabled 1 Enable Default 1 34 Enables disables mobile go ahead beep 0 Disable 84 1 Enable 36 Determines whether mobile DTMF 0 Disable 89 regeneration is e
189. rbids group calling the PL1877A disconnects If a mobile user attempts to transmit a group call when parameter 1011 specifically forbids group calling the PL1877A ignores the mobile revertive paging command n where n is the paging input 2 Tone Group Calls A 2 Tone Group Call is an 8 second tone burst of a specified frequency It alerts all devices whose 2 tone capcodes consist of B tones matching the group call tone For example an 8 second burst of 330 5 Hz would alert all devices whose 2 tone capcodes consisted of B tones of frequency 330 5 Hz NOTE GE systems do not support this method of group calling Therefore 8 second tone bursts are not generated if the selected code plan is the GE code plan parameter 1129 23 If identical A and B tones are specified for a capcode under the GE codeplan the A tone is replaced by the diagonal tone of 742 5 Hz Dual Addressing Dual Addressing applies to Motorola EIA 5 Tone paging The 5 tone paging sequences transmitted by the PL1877A consist of 5 tones However if enabled by parameter 1012 the PL1877A can generate 5 tone paging sequences that consist of a 6th tone the dual address tone This sixth tone is always the same frequency 2010 Hz When dual addressing is enabled through parameter 1012 the PL1877A requires that all 5 tone capcodes consist of six digits The sixth digit is either 0 or 1 If the dual address tone is to be generated the sixth digit must be 1 otherwise the
190. rd digits chosen by the mobile user when transmitting the code 04 15 58 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Miscellaneous Information about Wildcard Access Release Feature Capcode and Normal Wildcard Codes When the PL1877A is not paging a mobile any capcode wildcards in the wildcard code are treated as normal wildcard digits For example suppose the PL1877A is programmed with a wildcard code of l Mobile access has been restricted to multi digit access prefixes and all standard multi digit access prefixes have been disabled Here the mobile is always required to access the PL1877A with a wildcard prefix To answer a page mobile users must substitute their user ID digits into the capcode wildcard positions However to originate a call to a telephone user the mobile user treats the capcode wildcards as normal wildcard digits Instead of substituting their user ID digits into the capcode wildcard position the mobile user can substitute any digits for those locations Use of the Right Most Digit If the wildcard code contains fewer capcode wildcards than there are digits in the capcode only the right most digits of the capcode will be used in the wildcard prefix For example suppose your wildcard code is l and the PL1877A is programmed for 2 tone single mode paging If the PL1877A pages a user with the capcode 023 the PL1877A requires a wildcard access code matching the pattern 21x3x Noti
191. regeneration 1 Default 1 Otherwise the mobile DTMF is routed transparently to the phone line This parameter determines the time for regenerated digits the interdigit time is fixed at 100 ms Valid range 0 8 for a DTMF on time range for 50 450 ms Default 1 37 Disable mobile DTMF regeneration after call established 0 Enable mobile DTMF regeneration after call established 1 Default 1 When the mobile user dials a telephone number he is supposed to terminate his dialing with a This parameter determines how subsequent mobile DTMF digits are treated If this parameter is enabled the PL1877A regenerates DTMF digits subsequent to the Pulse Dialing Due to the wide variations in telephone line performance experienced in rural and urban environments it may be necessary or desirable to vary the dial pulse rates from the nominal 9 pulses per second pps Long telephone lines to the central office sometimes require lower pulse rates for reliable operation while short telephone lines may allow higher pulse rates It is recommended that several pulse rates be tried initially to determine the highest reliable rate Then reduce that rate somewhat to ensure continuously reliable performance Rotary dial pulse rate Valid range 0 9 0 9 pps 6 12 pps 1 6 pps 7 13 pps 2 7 pps 8 14 pps 3 8 pps 9 20 pps 4 10 pps Default 0 5 11 pps 89 04 15 Parameter Modification PL1877A Micropr
192. rent eae decent sl civ eere dl dive dede Seren 17 Internal Noise Operated Squelch Adjustment eee esses eene nne neen retener enne 18 PC PROGRAMMING ose a en ave PEN SUR CARERE S YER SERRE e PESE Une enda 19 GENERAL DESCRIPTION pectet deese cele dade eret erede veces te 19 Hardware Software Requirements eee esee eee eene etenim 19 Communication Port es e fr vi e v e i n Er tere teu e rtr 19 CORneCtlons v s t ce ca ve Pe e RE ere WR e e Pe EDEN e ret 19 Installing the Programming Software eese eene nennen tenete trennen trente 19 TAPS PROGRAMMING a rae e gen CIRC 20 Editing SereenS C EEEE AEROS 20 21 Input Output I O Settings ii ote rte i sur Ne eb les ci o Qo Ub qe eMe EA re TEE KEE 2l MAIN mm E 22 04 15 Publication 43004 019D ii Table of Contents PL1877A Microprocessor Radio Telephone Interconnect Input Output I O Settings Read 1 1600 22 Input Output I O Settings Read 23 Input Output Remote Programming Dialing Directory eese eerte nennen een eene nennen 24 Input Output Re d Local tna de eie e RH iie te eee ere 24 INSTALLATION E 25 Installation Radio Interface
193. requency Chart in Hz 3rd and 4th Digits 5 6 7 Tone Group P1 765 799 834 871 910 950 Tone Group P2 1036 1082 1130 1180 1232 1287 1344 1403 1465 Tone Group P3 1530 1598 1669 1743 1820 1901 1985 2073 2164 2260 Tone Group P4 2361 2465 2575 2688 2807 2932 3062 3197 3339 3487 Tone Group P5 282 2 294 7 307 8 321 4 335 6 330 5 366 0 382 3 399 2 416 9 Tone Group P6 435 3 454 6 474 8 495 8 517 8 540 7 564 7 589 7 615 8 742 5 5 6 Tone The following charts are used with 5 6 Tone paging Table 5 Tone Timing in milliseconds 7778 ae em Table 6 5 6 Tone Frequencies in Hz es mer Frequency _ 04 15 134 PL1877A Microprocessor Radio Telephone Interconnect Paging Table 7 5 6 Tone Preamble Chart 2 Digit Preamble with Corresponding Frequency Hz A n SS N Nn Table 8 TPL Code Chart Frequency Frequency Code Hz Code Hz 27 28 29 30 3 Frequency Frequency Hz Code Hz 1A 1 2 2 2B 37 3A 3B AZ 4A 4B 57 5 13 103 5 14 107 2 15 110 9 16 114 8 17 118 8 18 123 0 19 127 3 20 131 8 21 136 5 22 141 3 23 146 2 24 151 4 25 156 7 6 167 9 7 40 250 3 6 173 8 OZ 254 1 179 9 Jl 159 8 Ll A A m wss
194. rol Mode Enable Controls the Station Repeater Enable Mode feature If enabled a mobile can enable the base station or repeater remotely via a chosen prefix followed by a command This prefix consisting of 1 6 digits must be programmed in Station Repeater Enable Prefix Code Prefix to the Station Repeater Enable command It applies only if the Station Repeater Enable mode is active Mobile Inactivity Control The maximum allowable pause in mobile activity during a conversation Normally this parameter should be set to a maximum of 3 minutes Consult applicable local rules before disabling Its use prevents the interconnect from tying up the phone and radio system if the mobile drives out of range or is otherwise unable to drop the patch Overriding Access Time Limit by Mobile Command When enabled a mobile user can prevent the overall access time from expiring by using the command Resets Access Timer to Determines whether the command resets the access time to 1 minute or to the overall access time limit Overall Access Time Limit Valid range is 1 to 59 minutes of total access time before automatic disconnect occurs Time Out Tick Duration Determines the length of time prior to disconnect that time out warning ticks are initiated Valid range is 0 59 seconds If set to 0 time out ticks are disabled Control of External Devices via Security Code When enabled the monitor output will be activated upon r
195. roximately 50 kHz This supply furnishes the regulated 5 volts for analog and digital circuits and unregulated 14 volts The 5 volt analog output is delayed by Q217 Q213 until the 5 volt supply is present U234 and associated components provide an RS 232 compatible interface for programming system parameters from the serial port of a terminal U234a functions as a line receiver while section d serves as the line driver Microprocessor and DSP Module MDP U1 a 68HC11 8 bit microcontroller controls audio paths provides timing and regulates output levels The processor contains an internal power up reset and computer operating properly COP watchdog timer In the event that an internal failure occurs the reset output is asserted This resets the DSP controller DSP processor U10 handles the following audio routing tone detection DTMF tone generation receive audio de emphasis VOX autolevel and modem functions Host and DSP processors generate an operating clock internally by crystals Y2 and Y1 respectively Operating parameters are stored in NVRAM U3 U2 contains the operating program that runs the HOST processor Communication between the Host and DSP processors is via U5 and U6 157 04 15 Theory of Operation PL1877A Microprocessor Radio Telephone Interconnect Digital Signal Processing Receive audio enters the module through U18a U24b and U18 configured as a digitally controlled gain stage are un
196. s bcmar x 92 37 229 1 5 38 233 6 M 173 Al 254 179 42 159 wer n ms f 206 46 183 218 48 196 225 9 199 Z Z 8Z 2 3 4 114 1072 2z 15 109 135 04 15 Paging PL1877A Microprocessor Radio Telephone Interconnect Table 9 DPL Code Chart 13 074 35 251 57 464 79 731 14 114 36 261 58 465 80 732 15 115 37 263 59 466 81 734 21 143 43 331 65 565 87 145 04 15 136 PL1877A Radio Installation This section covers the installation information for the specific radio models listed below General installation instructions not specifically mentioned here are covered in the Installation Considerations section of this manual e Mitrek Consolette e Flexar Repeater e MCRI00 Repeater e 80 Base e T1600 Series Remote e MaxTrac 300 Base Station e RCB Repeater e MSF5000 Series Base NOTE If any of the following options are included in this PL1877A set up parameter modification as described in the Parameter Modification Procedures section starting on page 77 may be necessary to enable or disable a particular function Mitrek Consolette PL18774A Single Simplex Mode Interconnection between the PL1877A and the base station can be made via the accessory terminal strips and 2 on the rear of the chassis In most applications there are several spare terminals available for special interfacing in
197. s a 48 V talk battery Program parameter 163 to 1 for a phone line that provides a 24 V talk battery If the phone line provides substantially less than 24 V of talk battery it may be necessary to manually program the off hook threshold via test 6 or via the programming software If so program parameter 163 to 2 Number of rings that PL1877A must receive before generating ring signaling to mobile Valid range 1 9 Default 1 This parameter is used to delay ring signaling to the mobile long enough for an attendant to answer the call via a line sharing telephone 04 15 88 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Dialing Characteristics DTMF 1 line signaling selected 0 Pulse land line signaling selected 1 Default 0 Mobile audio cut through delay Valid range 0 9 This number is x in the following equation cut through delay 1 second x 1 second Default Mobile nus cut through delay is the allowed DTMF interdigit time for a telephone number dialed by the mobile The audio path from the mobile to phone line is disabled for the duration of this timer Thus mobile DTMF is kept from being routed to the phone line while the PL1877A regenerates the DTMF or converts the mobile DTMF into pulse dialing This timer is refreshed each time a new DTMF digit is received from the mobile DTMF Dialing Disable mobile DTMF regeneration 0 Enable mobile DTMF
198. s contains the 6 digit code that corresponds to a multi digit access prefix The valid range for each digit is 0 9 and A D AccesshRelease Telephone Initiated Direct Access Telephone Line Direct Access Lines 1 amp 2 Enables disables the telephone line direct access feature Telephone line direct access allows a telephone user to be placed directly on the air without any mobile intervention It works in conjunction with the Direct Access Timer 35 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Telephone Line Access Prefix The 0 to 6 digit prefix to command See also Require from Telephone Line User for Direct Access Lines 1 and 2 Require from Telephone Line User for Direct Access Lines 1 and 2 For telephone lines 1 and 2 this determines whether command is required from a landline user before allowing direct channel access and applies for paging input also Attendant Direct Access Enables disables the attendant direct access feature Direct access from the Attendant phone a parallel connected telephone instrument allows the attendant to talk directly to a mobile without mobile intervention It works in conjunction with the Direct Access Timer Attendant Access Prefix The 0 to 6 digit prefix to command See also Require from Attendant for Direct Access Require from Attendant for Direct Access Determines whether the DTMT command is required from the attendant user be
199. s the required suffix can cause disconnection of the conversation However with wildcard access release it is unlikely that anyone would be able to disconnect a call in progress except the mobile user who originated it via a wildcard access prefix Wildcard Access Release Installation The wildcard feature can be programmed to require wildcard access prefixes from 1 to 6 digits in length Note that the feature does not support variable length prefixes that is if the feature is programmed for 3 digit wildcard access prefixes then ALL wildcard access prefixes and the corresponding wildcard release suffixes prefixes must be 3 digits in length etc Furthermore some of the digits in wildcard codes can be set to specific values For example you can program the PL1877A such that all wildcard prefixes are of the form x3x where x is a wildcard digit that is a digit chosen by the mobile user when the prefix is used In this case the mobile user could access the PL1877A only with 3 digit access prefixes in which the 2nd digit is 3 The features described above are determined by programming parameters 530 535 This group of parameters is referred to as the wildcard template since it defines the structure that all valid wildcard prefixes must match To program the wildcard template follow the steps listed below 1 Determine how many digits you want in all wildcard prefixes The allowable range is 1 6 2 Determine whether you want any fixe
200. s the starting parameter number and OP2 is the ending parameter number View Parameters Parameters may be displayed and opened for modification by entering the command sequence No cr where No is the number of the parameter to be modified After entering the No cr command the parameter number chosen is displayed along with the current value of this parameter To change the value enter the new value and then close the location by pressing ENTER The next parameter 15 then displayed 1 Press the J CTRL and J entered simultaneously or the DOWN arrow to display the previous parameter 2 Press the K CTRL and entered simultaneously or the UP arrow to display the next parameter 3 Press the U CTRL and U entered simultaneously or the PgUp button to display parameters in increments of 10 4 Press the D CTRL and D entered simultaneously or the PgDn button to display parameters in decrements of 10 Help Screen To regain the help screen at any time during the routine enter a cr question mark at the prompt Exit To exit the parameter modification routine and cease communication between the patch and the video display terminal enter the sequence X CTRL and X pressed simultaneously NOTE Generally when entering parameter values larger than 9 the hexadecimal equivalent of the parameter value must be entered as opposed to the decimal value For example to program the overall access timer to a dura
201. security to paging Paging without Direct Channel Access In this situation the PL1877A must receive a wildcard access command after the mobile is paged If this command is not sent within a specified time period it normally disconnects the telephone user To prevent anyone except the paged mobile user from answering the call the PL1877A can be programmed to restrict mobile access to users of wildcard access prefixes Then you can program the wildcard code such that wildcard access requires the mobile users include their capcode digits or user ID in a wildcard prefix to answer a page For example if the PL1877A is operating in single mode paging and die mobile user s 2 tone capcode is 023 the PL1877A can be programmed to allow the user to answer a page only if the digits 0 2 or 3 are entered in the wildcard access code If the PL1877A is operating in multi mode paging and the mobile s user ID is 56 you can program the PL1877A to allow that mobile user to answer a page only if the digits 5 and 6 are entered in the wildcard access prefix 04 15 56 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Paging with Direct Channel Access With this feature direct channel access is granted to the telephone user immediately after paging the mobile The telephone user has access to the channel for a certain time the direct access duration At the end of that time the PL1877A disconnects the telephone user The direct
202. selected The preset 2 Tone digit is 4 Therefore if the operator entered 55 as the paging digits and pressed the TRANSMIT button the console would send the 2 Tone sequence A 742 5 Hz B 907 5 Hz This would alert a pager with a GE capcode of 455 04 15 130 PL1877A Microprocessor Radio Telephone Interconnect Paging Table 1 2 Tone Paging Code Plans Chart B Important Note The first digit indicates Chart A Group Source for the A tone and the second digit indicates Chart A Group Source for B Tone ee ee a e A 4A AR ON 2 gt N N AR 2 gt 8 N N N N N N oN N 2 gt N A w uni m imBjjnmirnmirnmirnljnj inji Ci C c Rjojo o NTN tA J WT BW JT CA N nN oo oo l oo wW wW gt wW e gt w 131 04 15 Paging Table 2 Tone Group Frequency Chart Chart A The chart below cross references the 2 Tone Paging Code to the frequency in Hz Tone Group 7 330 5 349 0 368 5 389 0 410 8 433 7 457 9 483 5 510 5 539 0 Ex 32 o 569 1 600 9 634 5 669 9 7073 7468 788 5 832 5 8790 9281 112 1 288 5 2965 3047 313 0 953 7 979 9 1006 9 1034 7 1024 5 553 9
203. ser on the selected channel to 2 However if all three digits were required from the console operator programming the number of 2 Tone digits accepted from the user on the selected channel to 3 the procedure for finding the frequencies from Table 2 would be the same except that the most significant digit of the prefix would be the first digit entered from the keypad 129 04 15 Paging PL1877A Microprocessor Radio Telephone Interconnect If no digits were required from the operator programming the number of 2 Tone digits accepted from the user on the selected channel to 0 both the A and B tone frequencies would be predetermined through programming and the same tone sequence would be sent every time a 2 Tone page is generated on this particular channel Group Call A group call occurs when both tones of a 2 Tone paging sequence are the same frequency If the console is programmed to allow 8 second group calls on a particular channel then whenever a paging sequence is generated that consists of two tones of the same frequency the page consists of an 8 second burst of that tone frequency However 8 second group calls do not apply when the GE code plan has been selected In the GE system a diagonal tone of 742 5 Hz is inserted in place of the first tone if that tone is the same as the second tone Example 2 Suppose the number of 2 Tone keypad digits accepted from the user on the selected channel is 2 and the GE code plan has been
204. similar to the installation of an answering machine The PL1877A should also be placed in diagnostic Test 13 to allow displaying of any valid DTMF digit 79 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Procedure from Landline Telephone Two telephone lines are required one for the interconnect and a second line for the telephone that is used to originate Touch Code commands After connecting the patch to the first telephone line dial the number assigned to the PL1877A from the telephone Allow the PL1877A one full minute to answer the line At that time the PL1877A returns a short beep tone to the caller After the beep tone is heard you must enter the sequence 0 If a landline programming prefix has been programmed into parameters 145 150 you must precede 0 with that prefix To check parameters without changing them you should enter a followed by the parameter number you wish to examine then a second If you make a mistake while entering this number you may cancel the incorrect entry with a prior to the second At this time the PL1877A should return to the caller the corresponding DTMF code of the number that has been stored into that specific location If an invalid parameter has been attempted from the originating DTMF phone the PL1877A returns bad beeps 3 short high frequency tones To modify a parameter enter the parameter number followed by a The patch returns good b
205. since the remote diagnostic was last performed e For Telephone Line 1 and 2 PL1877A is currently disconnected from the phone line e An attendant phone on the phone line is off hook or PL1877A is disconnected from the phone line e PL1877A is programmed for the wrong talk battery voltage on the phone line or the PL1877A access control circuitry is damaged e Audio path between the DSP processor and the phone line is damaged e DSP HCII Error 1 e DSP HCII Error 2 e DSP HCII Error 3 Read Local To perform a diagnostic on a PL1877A connected to the computer click on Read Local button The command to start the diagnostic is issued and the telephone line hangs up After a 5 second delay the results are read and displayed on the screen Read To perform a diagnostic by modem click on the Read Remote button Go to the Dialing Screen where you select or enter the number to be dialed and if applicable the PL1877A access code Click on the Dial button After the PL1877A answers click on OK The command to start the diagnostic is issued and the telephone line hangs up The previously dialed telephone number is dialed and after connecting to the PL1877A again the results of the diagnostic are read and displayed on the screen 51 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Service Adjust Manual Off hook Telephone Line Off hook Threshold Voltage The off hook threshold determines the maximu
206. sixth digit must be 0 Single Mode Selective Signaling When the PL1877A is programmed for single mode selective signaling input is normally required from the user landline attendant or mobile user This input specifies all or some of the target device s capcode digits The number of input digits required from the landline user is determined by parameter 1083 The number of input digits required from the attendant user is determined by parameter 1084 The number of input digits required from the mobile user is determined by parameter 1085 Suppose for example that the PL1877A is programmed for 5 tone single mode selective signaling parameter 1081 5 Suppose also that your system is configured such that the capcodes of all 5 tone devices are of the form 88xyz You wish to allow the landline user to page only a limited group of mobiles capcodes 88120 through 88129 You wish to allow mobile and attendant users to page any mobile in the system capcodes 88000 through 88999 To accomplish this program parameter 1083 to 1 This sets the PL1877A to require one input digit from landline users Program parameters 1084 and 1085 to 3 This sets the PL1877A to require three input digits from attendant and mobile users Then 8812 must be programmed into the preprogrammed 5 tone capcode parameters 1165 1170 Parameters 1169 and 1170 would be programmed with FF since they are unused The PL1877A draws whatever digits it needs from this ca
207. ss the phone line for a mobile originated call it returns a busy signal if it detects that the line is in use by a line sharing telephone set If the mobile wishes to bypass the busy line and place the call on line 2 he can dial 2 The PL1877A switches to line 2 and attempts the call on that line NOTE Ifthe mobile user switches to line 2 in response to busy signaling as described above it is not necessary to re enter the access command When the PL1877A switches to line 2 it automatically accesses the phone line If the mobile had previously entered an auto dial or redial command the PL1877A proceeds with auto dialing or redialing the telephone number The 2 command can be used to immediately return the PL1877A to line 1 when line 2 has already been selected For example if the PL1877A detects ringing on line 2 switches to line 2 and rings the mobile the mobile user can command the PL1877A back to line 1 in order to originate a call via the 2 command 2 can also be used when the PL1877A returns busy signaling as described previously to the mobile because line 2 is in use by a line sharing telephone set Selective Signaling The PL1877A supports single mode and multi mode selective signaling In single mode selective signaling the PL1877A is programmed to use only one paging type DTMF 2 tone etc for all mobiles In multi mode selective signaling the PL1877A is capable of paging 100 mobiles each of which has its own define
208. sulting wildcard pattern Listed below are just a few Y12Y3 YIFYF YFFYF 75 04 15 Operator Instructions PL1877A Microprocessor Radio Telephone Interconnect 5 Program the required values into the wildcard template For the example above you have chosen Y 1 F Y F as the required wildcard structure The last digit of your wildcard structure must be programmed into parameter 535 Thus you would program parameters 530 535 as follows parameter 530 FF parameter 533 F parameter 531 E parameter 534 E parameter 532 1 parameter 535 F Notice that the Y digits representing user ID digits have been replaced by E hexadecimal E E is referred to as the capcode wildcard digit since it is actually a special wildcard digit that is replaced by capcode digits or the user ID digits To complete the example above suppose the PL1877A has just paged the mobile corresponding to user ID 56 The telephone user is waiting on a mobile answer since direct access is disabled In this situation the PL1877A does not respond to any mobile access codes except those that match the following structure 51x6x where x represents wildcard digits digits chosen by the mobile user when transmitting the code Miscellaneous Information Regarding Wildcard Access Release Feature 1 When the PL1877A is not paging a mobile any capcode wildcards in the wildcard template are treated as normal wildcard digits For example suppose the PL1877A is programme
209. t Triple Key Access The PL1877A can be programmed to allow answering of land line attendant calls by mobiles that are not equipped with DTMF decoders If enabled by parameter 20 the PL1877A interprets three carrier bursts over a 3 second interval as an attempt to answer ring or selective signaling The PL1877A responds just as if it had received the access command NOTE This feature requires that the PL1877A be programmed for external logic or internal squelch carrier detection It is incompatible with RX VOX carrier detection triple key access feature 0 Enable triple key access feature 1 Default 0 Manual Release Methods Mobile Originated Release Mobile Release Command ae release command is 4 0 Normal release command is 1 Default 0 Multi digit Mobile Release FAG digit release codes are suffixes to release commands 0 Multi digit release codes are prefixes to release commands 1 Default 0 General Multi digit Release Code The valid range for parameters 410 415 is 0 9 FF Unused digits must be filled with FF hexadecimal FF If all digits are filled with FF the corresponding code 15 disable 410 415 General multi digit release code Specific Multi digit Release Code The valid range for parameters 386 409 is 0 9 A D FF Unused digits must be filled with FF hexadecimal FF
210. t the access timer via the command users of this multi digit prefix security code will nevertheless be allowed to do so Accessing Busy Phone Line When the PL1877A is programmed such that mobile users cannot access an off hook phone line via the command users of this multi digit prefix security code will nevertheless be allowed to do so Manual Dialing Restriction When the PL1877A is programmed such that mobile users can place auto dial calls only users of this multi digit prefix security code will nevertheless be allowed to do so Redialing Restriction When the PL1877A is programmed such that automatic redialing is disabled users of this multi digit prefix security code will nevertheless be allowed to use the redial command Auto dial Restriction When the PL1877A is programmed such that auto dial is disabled users of this multi digit prefix security code will nevertheless be allowed to place auto dial calls 04 15 34 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Override Restriction Starting with 0 When the PL1877A is programmed such that phone numbers starting with 0 cannot be dialed users of this multi digit prefix security code will nevertheless be allowed to dial them Override Restriction Starting with 1 When the PL1877A is programmed such that phone numbers starting with 1 cannot be dialed users of this multi digit prefix security code will nevertheless be allowed to dial them Overr
211. tact the telephone company to determine the maximum REN for the calling area This equipment cannot be used on the telephone company provided coin service Connection to Party Line Service is subject to State Tariffs If this equipment causes harm to the telephone network the telephone company will notify you in advance that temporary discontinuance of service may be required If advance notice isn t practical the telephone company will notify the customer as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it is necessary The telephone company may make changes in its facilities equipment operations or procedures that could affect the operation of the equipment If this happens the telephone company will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service If trouble is experienced with this equipment please contact GAI Tronics Corporation 400 E Wyomissing Ave Mohnton PA 19540 USA 800 492 1212 or 610 777 1374 If the trouble is causing harm to the telephone network the telephone company may request you to remove the equipment from the network until the problem is resolved This equipment uses the following USOC jacks RJ11C It is recommended that the customer install an ac surge arrester in the ac outlet to which this device is connected This is to avoid damaging the equipment caused by local lightening strikes and ot
212. tch is installed at your radio repeater site To access the telephone line connect press the button for about a half second When dial tone is heard dial the telephone number stretching the first digit for about a half second in order to allow the patch to detect your transmitter signal You should follow the telephone number with another This second tells the patch that you are finished with telephone number signaling If you omit this the unit assumes you are finished 1 to 10 programmable seconds after the last digit is entered and then opens the voice path to the telephone line When the called party answers you may talk to him in the same manner as you would to your base station operator or another mobile except that you are able to interrupt the telephone line party but they cannot interrupt you and be heard Each time you finish speaking and release your microphone button the patch sends a short beep tone to the telephone party to inform him that you are finished speaking At the end of the telephone conversation press the button for about a half second to release hang up the telephone line The patch confirms release with a series of short beeps 04 15 64 PL1877A Microprocessor Radio Telephone Interconnect Operator Instructions The following is a list the mobile commands Abbreviated Mobile Commands Chart NOTE All multi digit commands must be entered with a maximum of second inter digit time Standard
213. the maximum allowed by the Paging Format Pulse Dial Decoding Telephone Line Determines whether rotary pulse dial phone can be used to input paging digits NOTE The telephone network must support pulse dialing throughput Many electronic central office switches will disconnect a call if over dialing is attempted in rotary or pulse mode after the call is complete Make sure the system supports this mode before enabling 04 15 44 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Paging Attendant Paging Paging Enabled from Attendant Enables or disables the ability of an attendant to use the paging feature of the interconnect The attendant is a parallel connected telephone instrument Attendant Group Calls Enabled Enables the ability of attendant users to cause generation of 2 Tone group calls Number of Digits Accepted from Attendant Determines the number of digits accepted from attendant for paging The range is from 0 to the maximum allowed by the Paging Format Paging Mobile Paging Mobile Revertive Paging Enabled Determines whether a mobile can use the paging feature to signal another mobile Mobile Group Calls Enabled Enables the ability of mobile users to cause generation of 2 Tone group calls Number of Digits Accepted from Mobile Determines die number of digits accepted from mobile user for revertive paging The range is from 0 to the maximum allowed by the Paging Format Pa
214. the ability to create a unique access prefix each time a call is placed or answered This access prefix then becomes the release suffix or prefix depending on parameter 40 which is required to disconnect the call For example suppose a mobile user accessed the PL1877A with the code 1776 Then to release the PL1877A that user would be required to enter 1776 or 1776 depending on whether the PL1877A is programmed for multi digit release prefixes or suffixes by parameter 40 On the next call the mobile user might access the PL1877A with the code 1812 Then to release the PL1877A the required code would be 1812 or 18128 Notice that the mobile user used two entirely different access prefixes in each case above In fact the mobile user could enter a different prefix each time the PL1877A is accessed In each case the PL1877A would require a release suffix or release prefix depending on parameter 40 that exactly matched the access prefix 04 15 72 PL1877A Microprocessor Radio Telephone Interconnect Operator Instructions The wildcard access release feature is generally used to increase the level of security beyond that provided by the standard multi digit access release feature Since the standard multi digit access and release codes are fixed security is limited by the number of mobile users who know the codes For example if the PL1877A is programmed to require a multi digit release suffix from the mobile user anyone who know
215. the unit is directly attached to a repeater station e Signal Search Simplex is selected when the Interconnect is installed at your base station It requires the transmit to receive turnaround time be less than 50 ms to avoid clipping of words during the receive sample period e Enhanced VOX Simplex is normally chosen when the unit is attached directly to a control station Signal Search Period Contains the control value for the signal search frequency the number of times per second that the base station reverts to the receive mode to check for a mobile carrier It applies only when the signal search simplex is the selected operational mode The range is 250 2500 ms in 25 ms increments Signal Search Duration This is the time interval in which the base station reverts to the receive mode to check for a mobile carrier detect Applies only to the signal search simplex mode The range is 15 100 ms in 5 ms increments 04 15 28 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Enhanced VOX Ticks If enabled short attention getting ticks are sent to the landline party upon initial access on mobile originated calls These ticks allow time for the mobile operator to inform the landline party that they cannot speak while the mobile is speaking It is applicable only when Mode of Operation is Enhanced VOX Enhanced VOX Telephone Line Transmit Timer Limits the continuous uninterrupted talk time from the landline to
216. tically selects line 2 when it detects ringing on that line while in the idle condition Also the mobile can specifically command the PL1877A to select line 2 if line 1 has not been accessed that is if a conversation is not occurring on line 1 NOTE Generally the PL1877A s support for attendant originated calls calls originated from a line sharing telephone set is limited to line 1 This is because the PL1877A idles on line 1 as stated above Thus unless the PL1877A has switched to line 2 for some reason such as a mobile command it cannot receive the attendant access command from a line sharing telephone set on line 2 Answering Calls on Line 2 When the PL1877A is idle and detects ringing on line 1 it transmits a 3 second ring signal to the mobile if not programmed for selective signalling or direct access The same applies for line 2 however the ring signal for line 2 1s comprised of two bursts 1 second burst 5 second silence 1 5 second burst This difference allows the mobile to determine whether the incoming call is on line 1 or line 2 The mobile user answers a call on line 2 in exactly the same manner as he answers a call on line 1 That is he uses the or or access command possibly preceded by a multi digit or wildcard access prefix If line 2 begins ringing while a conversation is occurring on line 1 or if line 1 begins ringing while a conversation is occurring on line 2 the PL1877A generates a perio
217. tion ID SID See appropriate section 95 514 Enhanced VOX delay Valid range 0 100 84 Default 100 515 517 Override table entry corresponding to See appropriate section 91 multi digit access prefix 1 518 520 Override table entry corresponding to See appropriate section 9 multi digit access prefix 2 521 523 Override table entry corresponding to See appropriate section 91 multi digit access prefix 3 524 526 Override table entry corresponding to See appropriate section 9 multi digit access prefix 4 527 529 Override table entry corresponding to See appropriate section 91 security code 530 535 Wildcard access release code template a Refer to the Wildcard 9 6 byte template that defines the structure Access Release section in this of wildcard access release codes The manual code appearing in the template must be right justified the last digit of the template must be in parameter 535 Filling the template with FF disables wildcard features 549 Signaling pretime the delay between Valid range 0 24 87 activating the PTT and generating mobile Default 3 signaling 1001 Determines whether selective signaling 0 Disabled 117 from a landline caller on line 1 is enabled 1 Enable or disabled Default 0 1002 Determines whether selective signaling 0 Disabled 119 from an attendant is enabled or disabled 1 Enable Default 0 1003 Determines whether mobile revertive 0 Disabled 119 mobile to mo
218. tion of 59 minutes 3B the hexadecimal equivalent of 59 must be entered Parameter Modification via Modem The modem feature allows operating parameters to be programmed checked or modified remotely using a computer equipped with a modem The format is Bell 212A operating at 1200 baud Modification of parameters requires the computer modem software to work in a terminal emulation program such as VT100 ANISE or other program that supports ASCII characters This feature can be enabled or disabled via parameter 22 04 15 78 PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification Modem Operator Instructions To access the remote terminal programming modem feature of the PL1877A connect a standard telephone in parallel with the originating modem From the telephone dial the phone number of the remote PL1877A While listening on the telephone wait until the PL1877A seizes the line and returns a prompting tone beep to the caller The amount of rings and the length of time vary depending on parameter programming At the beep enter the sequence 2 If the landline security code has been enabled it must be entered as a prefix to this command see parameters 145 150 Next type the command ATA at the computer keyboard The PL1877A connects approximately 2 seconds after the answer tone Once access has been gained changing or viewing of operating parameters can proceed as described under Parameter Modificati
219. to TB2 4 connect the other end of the dc power cable into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If the optional ac transformer and cable are to be used install the ac power connector into the 5 pin DIN connector DC PWR on the rear panel of the PL1877A If this is a control station in a repeater system that transmits PL DPL during transmit turn off delay it is necessary that the repeater be set for zero turn off delay See Note 1 04 15 140 PL1877A Microprocessor Radio Telephone Interconnect PL1877A Radio Installation Using the Parameters Modification Procedure in this manual set the following required parameter settings Parameter 0 de emphasis 0 No PL detect input required 1 PL detect input required 7 0 PL detect input is active low 1 PL detect input is active high s reine 0 active low PTT sense input 1 enhanced VOX simplex mode All other parameters are programmed as applicable to system requirements Refer to the Parameters Modification Procedure and then the Level Setting sections of this manual NOTES 1 Repeater transmit turn off delay in repeater control station installations When the PL1877A is being installed in a control station controlling a repeater it is necessary to ensure that the repeater does not stay on the air after the control station unkeys If the PL1877A detects carrier and PL DPL if applicable after unkeying the control station it
220. to or from the attendant phone possible Require Multi Digit Prefix Restricts patch access to multi digit prefix users It can only be edited if there is at least one Multi Digit Prefix or Wildcard code Require Multi Digit Release after Multi Digit Access Ties together multi digit access prefixes and release codes If tied together the user entering the multi digit access prefix must enter a corresponding multi digit release code to disconnect 04 15 32 PL1877A Microprocessor Radio Telephone Interconnect PC Programming Multi Digit Release Codes Prefix Suffix Determines whether the Multi Digit Release Codes will be a suffix or a prefix to the release command Bypass Multi Digit Access Command Allows the answer if called mobile command or Access Command to bypass the multi digit access code if a landline call is waiting to be answered Wildcard Access Release Code Allows the user to edit the 0 to 6 digit wildcard code The valid range is 0 9 E F Wildcard characters characters that are variable and supplied by the mobile user are specified by F or Capcode wildcards are specified by E or See the Operation section for more information about these codes Answer via Carrier Burst Detection Triple Key This allows the user to specify whether to allow mobile to answer an attendant or landline originated call via carrier burst detection If a mobile user sends three carrier bursts withi
221. todial Redial eese eene 40 Signaling Telephone Line Dialing Auto dial Numbers eese ens 41 Signaling Telephone Line Dialing Toll Restriction eese nennen 41 Signaling Telephone Line Signaling Toll Restriction Prefixes 42 Signaling Mobile Signaling Ring Signaling esee eee enne nennen trennen ene 42 Station Identifier ti re aet er PER RR UR RE Rea ED eter ener ines 43 44 Paging Telephone Line i4 qu a EROS ERAI NEU HUNE E E ENG QU 44 Paging Attendant Paging edet eee eere Eee pre CORP ATOE 45 Paging Mobile Paging iecit tee rr P REPE EE e EPUM cea a s I RP HR ERE eR ERUNT 45 Paging General Pdgingz eaae POE aeq N 45 Paging Paging Format DTMF Paging Parameters eese eese nere ener een nene ennnen nene 46 Paging Paging Format 1500 Paging Parameters esee entrent rene rennen 46 Paging Paging Format 2605 Paging Parameters eese 47 Paging Paging Format Plectron Paging Parameters eese eene trennen eene eerte nnne 47 Paging Paging Format 2 Tone Paging Parameters eese eene nee enne tnn 47 Paging Paging Format 5 Tone Paging Parameters eee 48 Paging Paging Format Multi Mode Paging
222. ts When the channel is clear the PL1877A pages the mobile Then if the PL1877A is not programmed for direct access it waits for the mobile to answer Otherwise the PL1877A immediately patches the landline user through to the channel for the duration of the direct access timer If the landline user takes too long to enter the paging input digits the PL1877A responds in one of 3 ways depending on the value of parameter 1082 It either disconnects the land line transmits ring signaling to the mobiles or pages user ID 00 if user ID 00 has been enabled 04 15 118 PL1877A Microprocessor Radio Telephone Interconnect Features If the landline user desires to page several mobiles at once he enters the paging input for the first mobile as described above Then when the PL1877A has paged the mobile he presses In response the PL1877A generates two beeps to indicate it is again awaiting paging input Then he enters the paging input digits for the second mobile This process continues until all the desired mobiles have been paged Attendant The attendant dials the attendant access command When the PL1877A answers it normally generates two beeps to indicate that it is waiting on the attendant user to enter the required capcode digits or user ID NOTE Ifthe PL1877A is programmed to require an attendant access code before allowing selective signaling parameter 51 1 then it answers the phone line with one beep After the atten
223. umes that you are finished 1 to 10 programmable seconds after the last digit has been entered and then opens the voice path to the telephone line When the called party answers you cannot interrupt and be heard until they have finished speaking When they have finished speaking you may then talk to the telephone line party In order to allow time for you to answer the patch sends an attention getting ticking sound to the called party that disappears after your first reply When you finish speaking the called party hears a short beep tone Make a brief statement informing the telephone line party not to speak to you until they have heard the go ahead beep tone For example When you hear the beep it is your turn to talk At the end of the conversation press the button to release hang up the telephone line The patch confirms release with a series of short beeps Network Signaling When you dial a telephone number that is busy or make a dialing mistake and get the fast busy signal the phone patch determines the repetitive signaling condition and allows you to hear a few seconds of the telephone network signaling Then when the patch interrupts the signaling you may respond with the button to release the telephone line The patch continues to alternate between two seconds of transmitting the repetitive signaling and five seconds of awaiting mobile commands until the telephone is released Half Duplex Mode In this mode the pa
224. upplied here For example if one digit were required from the telephone user the first three capcode digits would be taken from this field This is not applicable to multi mode paging The value of the first two digits cannot exceed 35 The remaining digits can have values 0 9 Paging Paging Format 2 Tone Paging Parameters 2 Tone Paging A amp B Tone Length Selects individual tone duration in a 2 Tone paging sequence 2 Tone Codeplan Selects the codeplan for 2 Tone paging 2 Tone Paging Digits If less than three digits are required as input from the land line attendant mobile user the remaining digits are supplied here For example if one digit were required from the telephone user the first two capcode digits would be taken from this field This is not applicable to multi mode paging 47 04 15 PC Programming PL1877A Microprocessor Radio Telephone Interconnect Paging Paging Format 5 Tone Paging Parameters 5 Tone Diagnostic Enables the 5 Tone diagnostic mode The diagnostic mode extends the duration of individual tones to one second in length Specific frequencies can then be measured with a frequency counter of other instrument NOTE This parameter must be reset after testing is completed 5 Tone Dual Addressing Enables dual addressing in 5 Tone Paging 5 Tone Paging Preamble Selects the preamble for 5 Tone Paging Choose from the list of available options to match the requirements of the mobiles or port
225. ws selection of the type of selective signaling for a landline user Determines the action to take when the time allotted for receiving the first selective signaling or user ID digit expires or an improper phone line dialing is received Determines the number of digits accepted from a landline user for selective signaling The valid range depends on the type of selective signaling selected 113 0 DTMF 1 2 Tone 2 Plectron 3 2805 4 1500 5 Motorola EIA 5 Tone 8 TPL 9 DPL F Multi mode 0 Disconnect 1 Revert to ring signaling 2 Revert to user ID 00 0 6 DTMF 2805 1500 0 3 2 Tone 0 4 Plectron 0 6 Motorola EIA 04 15 Parameter Modification PL1877A Microprocessor Radio Telephone Interconnect Para Refer to ni Section on pes TpBesenpHOn 1 Control Digits 1084 Determines the number of digits accepted 0 6 DTMF 2805 1500 from an attendant for selective signaling 0 3 2 Tone The valid range depends on the type of 0 4 Plectron selective signaling selected 0 6 Motorola EIA 1085 Determines the number of digits accepted 0 6 DTMF 2805 1500 from a mobile user for selective signaling 0 3 2 Tone The valid range depends on the type 0 4 Plectron selective signaling selected 0 6 Motorola EIA 1087 Determines the number of times to repeat Valid range 0 8 122 signaling 1088 Mobile answer time the number
226. xes if the time between entry of individual digits including the access command 15 less than one second and the duration of each digit is not greater than 3 5 seconds The table on page 61 lists the restrictions that can be overridden using a multi digit access prefix Security Code This code consists of the DTMF command 0 followed by a 1 to 6 digit suffix When the PL1877A receives the security code 0Zn where n is the security code suffix it immediately overrides all restrictions listed in the table below The PL1877A continues to override these restrictions until the next disconnection 1 when the PL1877A generates six beeps NOTE The security code is not an access code The PL1877A will not access the phone line in response to this code it will only override the restrictions 04 15 60 PL1877A Microprocessor Radio Telephone Interconnect PC Programming It may not be desirable to override all of the restrictions in listed in the table You can program the PL1877A to override some of the restrictions however this limits the number of restrictions that can be overridden by a single multi digit access prefix For example suppose you require that the security code cannot override the manual dialing restriction restriction 4 Doing this results in none of the multi digit access prefixes being capable of overriding the manual dialing restriction NOTE As a general rule a multi digit access prefix can only override restrict

43004-019D - GAI

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