G703FE1 - CTC Union
Contents
1. 2 4 Application Notes Chapter 3 Troubleshooting DEO GENEL IUD ILS S 1 8 2 225252 Aes 3 9 Umt nnno ERES Appendix A Cable Definitions Pack Series DB25F Definition A 2 RS 530 Cable Definition V 35 Cable Definition 4 RS 449 Cable Definition 5 21 DTE Cable Definition 21 DCE Cable Definition G 703 Port RJ 45 Pin Assignment A 8 G 703 Cable RJ 45 Pinout A 9 Cable Ordering Information Technical Inquiry Card Table of Contents Blank Page Chapter 1 Introduction 1 0 Introduction The G 703 E1 Pack Series provides an economical digital access solution for El and Fractional E1 network services A flexible selection of replaceable adapter cables provides a wide range of industry standard interfaces for both DTE or DCE devices which2. 703 1 Feb 2000 19 Chapter 2 Configuration and Operation Check carefully this table is for the G703E1 only SW No DIP SW STATUS FUNCTIONS Remarks SWI 1 2 3 4 5 El Line Impedance Setting ON ON OFF OFF OFF 120 ohm line impedance OFF OFF ON 75 ohm line impedance SW2 1 OFF NA Not Applicable ON NA 2 thru 8 NA The G703E1 SW3 1 thru 8 NA does not support Sw4 1 thru 8 NA fractional 1 services SW5 thru 8 NA SW6 1 2 Rx Tx timing source OFF OFF Rx lt Recovery Tx lt Data port transparent OFF ON Rx Tx lt Data port ON OFF Rx Tx lt Recovery ON ON Rx Tx lt Internal Oscillator 3 OFF Rx Clk Polarity Normal ON Rx Clk Polarity Inverted 4 OFF Tx Polarity Normal ON Tx Clk Polarity Inverted 5 OFF NA ON NA OFF NA ON NA 7 OFF NA ON NA 8 OFF Data port is DCE ON Data port is DTE Table 2 1 G703E1 Pack DIP Switch Quick Reference Refer to the sticker on the unit and check the appendix for any updated information 703 1 Feb 2000 20 Chapter 2 Configuration and Operation Check carefully this table is for the G703FE1 only SW No DIP SW STATUS FUNCTIONS Remarks SWI 1 2 3 4 5 EI Line Impedance Setting ON ON OFF OFF OFF 120 ohm line impedance OFF OFF ON 75 ohm line impedance SW2 1 OFF Unframed ON Framed 2 thru 8 Timeslot 1 thru 7 These switches are SW3 1 thr
3. 703 1 Feb 2000 27 Chapter 2 Configuration and Operation Kars LED INDICATORS TABLE LED NAME COLOR INDICATION DTE GREEN DATA PORT DTE MODE amp POWER ON DCE GREEN DATA PORT DCE MODE amp POWER ON TD YELLOW TRANSMIT DATA STATUS ON 1 OFF 0 FLASH CHANGE RD YELLOW RECEIVE DATA STATUS ON 1 OFF 0 FLASH CHANGE TEST RED LOOPBACK TEST ON TEST OFF NORMAL ALARM RED DETAIL SEE NEXT TABLE ON TEST OFF NORMAL TX CLOCK LOSS RED TRANSMIT CLOCK LOSS RX SIGNAL LOSS RED RECEIVE SIGNAL LOSS Table 2 12 G703E1 Pack Series LED Indicators The following table displays all of the possible alarm conditions that will result is lighting the alarm LED ALARM LED INDICATOR TABLE FRAME MODE UNFRAME CAS CCS MODE CRC4 OFF CRC4 ON CRC4 OFF CRC4 ON HDB3 CODE HDB3 CODE HDB3 CODE HDB3 CODE HDB3 CODE VIOLATION VIOLATION VIOLATION VIOLATION VIOLATION RX DATA ALL RX REMOTE RX REMOTE RX REMOTE RX REMOTE ONES ALARM ALARM ALARM ALARM RECEIVE FAS RECEIVE FAS RECEIVE FAS RECEIVE FAS LOSS LOSS LOSS LOSS RECEIVE CAS RECEIVE CAS CRC4 ERROR LOSS LOSS MF SYNC MF SYNC LOSS LOSS CRC4 ERROR Table 2 13 G703E1 Pack Series Alarm LED Indicator 703 1 Feb 2000 28 Chapter 2 Configuration and Operation 2 2 Examples of DIP Switch Settings G703FE1 A version 0101 or later Example 1 Set line impedance to 75
4. RX and TX timing all from data port DTE DCE timing ON OFF RX and TX timing all from recovery ON ON RX and TX timing all from int osc Source select Table 2 11 3 OFF RX clock polarity NORMAL ON RX clock polarity INVERT 4 OFF TX clock polarity NORMAL ON TX clock polarity INVERT 5 OFF CRC4 select DISABLE ON CRC4 select ENABLE 6 OFF SIGNALING mode select CAS ON SIGNALING mode select CCS 7 OFF IDLE code select MARK OxFF Normal ON IDLE code select Pass Through Cascade 8 OFF DATA PORT set to DCE ON DATA PORT set to DTE Table 2 10 G703FE1 A DIP SW6 Functions DTE DCE TIMING SOURCE SELECT TABLE DIP SW6 DTE MODE DCE MODE SETTING 1 2 RX TIMING TX TIMING RX TIMING TX TIMING OFF OFF Recover from 1 Source from data Recover from 1 Source from data port port port port Output to ETC Input from RC Output to RC TC Input from ETC pins pins pins pins OFF ON Source from data Source from data Source from data Source from data port port port port Input from RC Input from RC Input from ETC Input from ETC pins pins pins pins Output to ETC Output to RC TC pins pins ON OFF Recover from E1 Source from 1 Recover from 1 Source from 1 port port port port Output to ETC Output to RC TC pins pins ON ON From internal From internal From internal From internal oscillator oscillator oscillator oscillator Output to ETC Output to RC TC pins pins Table 2 11 G703E1 Pack Series Timing Source
5. 11 4 lt gt 3 19 10 8 gt 5 10 lt gt 12 17 gt 6 9 lt gt 13 Note This cable for DTE mode of Pack Series 703 1 Feb 2000 47 Appendix Cable Definitions A 6 X 21 DCE Cables multi conductor round 100cm Female DB25 Male or Female DB15 PIN PIN 1 gt 1 7 lt gt 8 the following are all twisted pairs 2 lt gt 2 14 lt gt 9 3 lt gt 4 16 lt gt 11 4 lt gt 3 19 lt gt 10 8 lt gt 5 10 lt gt 12 15 17 lt gt 6 9 12 lt gt 13 Note This cable for DCE mode of Pack Series 703 1 Feb 2000 48 Appendix Cable Definitions A 7 G 703 Port RJ 45 Pin Assignment NC GND Tx Fame Rx H H Rx GND NC 8 703 1 Cable RJ 45 Pinout RJ 45 Plug RJ 45 Plug PIN PIN 1 lt gt 1 2 lt gt 2 3 lt gt 4 4 lt gt 3 5 lt gt 6 6 lt gt 5 7 lt gt 7 8 lt gt 8 703 1 Feb 2000 49 Appendix Cable Definitions A 9 Cable Ordering Information MODEL Description Order No H6 EXT DB25 M to DB25 F 1 meter RS 530 58 D2MD2F005 232CON M DB25 M to DB25 M 1 meter RS 530 58 D2MD2M000 V35CON2 M DB25 M to MB34 M 1 meter V 35 58 D2MM3M001 V35CON2 F DB25 M to MB34 F 1 meter V 35 58 D2MM3F001 449CON M DB25 M to DB37 M 1 meter RS 449 58 D2MD3M000 449CON F DB25 M to DB37 F 1 meter RS 4
6. Chapter 1 Introduction e Recovery timing In this mode the G 703 E1 Pack Series E1 link transmit clock is locked to the recovered receive clock This is usually the timing mode selected for network operation LOCAL G703E1 Pack E1 transceiver Figure 1 1 Recovery timing When the user data port is in DTE mode the receive clock provides the clocking source for both the user data receive timing out the ETC pins and the user data transmit timing When the user data port is in DCE mode the El receive clock provides the clocking source for both the user data receive timing out the RC TC pins and the user data transmit timing 703 1 Feb 2000 6 Chapter 1 Introduction e Internal timing In this mode G 703 E1 Pack Series E1 link transmit clock is derived from the internal clock oscillator This timing mode is necessary in point to point applications over leased line In this case one G 703 E1 Pack Series must be a timing source and use the internal oscillator and the others must operate from the recovered clock LOCAL G703E1 Pack Figure 1 2 Internal Timing When the user data port is in DTE mode the internal oscillator provides the clocking source for both the user data receive timing out the ETC pins and the user data transmit timing When the user data port is in DCE mode the internal oscillator provides the clocking source for both the user data receive timing out the RC TC pins and
7. 16 17 17 18 18 19 19 20 lt gt 20 21 lt gt 21 22 lt gt 22 23 lt gt 23 24 lt gt 24 25 lt gt 25 703 1 Feb 2000 44 Appendix A Cable Definitions V 35 Cables multi conductor round 100cm Male DB25 Male or Female MB34 PIN PIN 2 lt gt P 14 lt gt 5 3 lt gt R 16 lt gt T 4 lt gt C 5 lt gt D 6 lt gt E 20 lt gt H 8 lt gt F 24 lt gt U 11 lt gt W 15 lt gt 12 lt gt 17 lt gt V lt gt X 1 lt gt A lt gt B 22 lt 1 NOTE TWISTED PAIRS 5 R T U W Y AA 703 1 Feb 2000 45 Appendix A Cable Definitions 4 RS 449 Cables multi conductor round 100cm Male DB25 Male or Female DB37 PIN PIN 1 lt gt 1 7 lt gt 19 20 37 the following are all twisted pairs 2 lt gt 4 14 lt gt 22 3 lt gt 6 16 lt gt 24 4 lt gt 7 19 lt gt 25 5 lt gt 9 12 lt gt 27 6 lt gt 11 22 lt gt 29 20 lt gt 12 23 lt gt 30 8 lt gt 13 10 lt gt 31 24 lt gt 17 11 lt gt 35 15 lt gt 5 12 lt gt 23 17 lt gt 8 9 lt gt 26 703 1 Feb 2000 46 Appendix A Cable Definitions 5 the following are all twisted pairs X 21 DTE Cables multi conductor round 100cm Male DB25 Male or Female DB15 PIN PIN 1 lt gt 1 7 lt gt 8 gt gt 2 14 lt gt 9 3 lt gt 4 16 lt
8. 6703 Pack Series production in September 2000 the G703 FE1 and G703 FE1 A have been upgraded to version V2 0 The V2 0 units may easily be identified by their off white color cases The table below displays the G703 FE1 V2 0 DIP Switch Quick Reference table The G703 FE1 A V2 0 DIP Switch Quick Reference table remains the same as the original G703 FE1 A DIP Switch Quick Reference table Check carefully this table is for G703FE1 V2 0 only SW No DIP SW STATUS FUNCTIONS Remarks SWI 1 2 3 4 5 El Line Impedance Setting OFF OFF OFF OFF OFF 120 ohm line impedance ON ON 75 ohm line impedance SW2 1 OFF Unframed ON Framed 2 thu 8 Timeslot 1 thru 7 These switches are SW3 1 thu 8 Timeslot 8 thru 15 ignored if SW2 1 is Sw4 1 thu 8 Timeslot 16 thru 23 set OFF Unframed SW5 1 thu 8 Timeslot 24 thru 31 SW6 1 2 Rx Tx timing source OFF OFF Rx lt Recovery Tx lt Data port transparent OFF ON Rx Tx lt Data port ON OFF Rx Tx lt Recovery ON ON Rx Tx lt Internal Oscillator 3 OFF Rx Clk Polarity Normal ON Rx Clk Polarity Inverted 4 OFF Tx Clk Polarity Normal ON Tx Clk Polarity Inverted 5 OFF CRC4 Disabled ON CRC4 Enabled 6 OFF CAS PCM30 mode ON CCS PCM31 mode 7 OFF Unused Timeslot MARK FF ON Unused Timeslot FLAG 7E 8 OFF Data port is DCE ON Data port is DTE Adden 1 1 G703FE1 V2 0 Pack DIP Switch Quick Reference 703 1 Feb
9. DIP SW6 7 OFF Receive amp Transmit timing from 1 RX recovery DIP SW6 1 ON DIP SW6 2 OFF Data port receive clock polarity INVERT DIP SW6 3 ON Data port transmit clock polarity NORMAL DIP SW6 4 OFF Data port set to DTE mode DIP SW6 8 ON DIP SW2 DIP SW3 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 OF OF OF OF OF OF OF OF OF OF OF OF OF OF ON ON DIP SW4 DIP SW5 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 OF OF OF OF OF OF OF OF OF OF OF OF OF OF OF DIP SW6 1 2 3 4 5 6 7 8 OF OF OF OF OF ON ON ON 703 1 Feb 2000 Chapter 2 Configuration and Operation Example 5 FRAME amp CCS mode PCM31 DIP SW2 1 ON DIP SW6 6 ON Clock rate 1024Khz insert in time slot 1 2 3 4 6 8 10 12 16 18 24 25 26 27 30 31 G703FE1 and G703FE1 A only CRC4 DIP SW6 5 ON IDLE time slot code select FLAG Ox7E SW6 7 ON Receive amp Transmit timing from DATA PORT SW6 1 OFF DIP SW6 2 ON Data port receive clock polarity NORMAL DIP SW6 3 OFF Data port transmit clock polarity INVERT DIP SW6 4 ON Data port set to DTE mode DIP SW6 8 ON DIP SW2 DIP SW3 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7
10. LED indicators G703E1 U plastic case PWR green Signal Loss Red Timing Loss Red TD Yellow RD Yellow Test Red Physical Height Width Length excluding connectors Weight Power supply Voltage Power consumption Environment Temperature Humidity DC applied power switch ON E1 link signal loss E1 link Tx Clock loss Transmit data data port Receive data data port Loopback active Metal Case type Plastic Case type 30 mm 28 mm 99 mm 79 mm 170 mm 135 mm 360 g 180 4 DC 9V AC Adapter for 110VAC or 220VAC less than 4 Watts DC9V 0 60C 32 140F 0 to 90 non condensing 703 1 Feb 2000 16 Chapter 1 Introduction User Data Port T 2 DB25 Female Interface Mode LEDs Power DATA PORT Switch DC Input Jack Config DIP Switches Loopback Switch Model G 703 Side Sticker E 22 1 120 Twisted pair E1 75 ohm Coaxial BNC G 703 Pack Series Metal Case G703E1 Feb 2000 17 Chapter 1 Introduction User Data Port DB25 Female LED Status Indicators Power Switch Config DIP Switch gt x DC Input 18 T Jack QE 8 Loopback 2 9 sw Switch 4 Side 1 120 Twisted pair E1 75 ohm Coaxial BNC G 703 Pack Series Plastic Case G703E1 Feb 2000 18 Chapter 2 Configuration and Operation 2 0 Slide Switch Functions There are two slide switches on the unit The POWER switch is
11. ON OFF Rx Tx lt Recovery ON ON Rx Tx lt Internal Oscillator 3 OFF Rx Clk Polarity Normal ON Rx Clk Polarity Inverted 4 OFF Tx Polarity Normal ON Tx Clk Polarity Inverted 5 OFF CRC4 Disabled ON CRC4 Enabled 6 OFF CAS PCM30 mode ON CCS PCM31 mode 7 OFF Unused Timeslot MARK FF When cascading you ON Unused Timeslot PASS THRU MUST set this switch ON 8 OFF Data port is DCE ON Data port is DTE Note 1 Version prior to 0101 set termination as per G703FE1 Note 2 When set to Unframed timeslot switches are ignored Table 2 3 G703FE1 A Pack DIP Switch Quick Reference Refer to the sticker on the unit and check the appendix for any updated information 703 1 Feb 2000 22 Chapter 2 Configuration and Operation Check carefully this table is for the G703E1 U only SW No Switch Status FUNCTIONS Remarks 1 OFF 120 ohm 1 line impedance RJ 45 connection ON 75 ohm 1 line impedance BNC connection 2 OFF Data Port is DCE connect to DTE ON Data Port is DTE connect to DCE 3 OFF Line Code is HDB3 ON Line Code is AMI 4 5 6 7 Line Build Out ON OFF ON OFF Long Haul ON ON ON OFF Short Haul 8 9 Timing OFF OFF Rx lt Recovery Tx lt Data Port Transparent ON OFF Rx Tx lt Recovery OFF ON Rx Tx lt Data Port ON ON Rx Tx lt Internal Oscillator Table 2 4 G703E1 U P
12. 8 OF OF OF OF oF OF ON ON on ON ON ON ON DIP SW4 DIP SW5 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 OF OF OF OF OF OF OF ON ON ON ON DIP SW6 4 5 OF OF OF ON ON ON ON ON 703 1 Feb 2000 32 Chapter 2 Configuration and Operation Example 6 FRAME amp CCS mode DIP SW2 1 ON DIP SW6 6 ON Clock rate 1984Khz insert in time slot 1 31 DIP SW3 DIP SW6 all ON G703FE1 and G703FE1 A only CRC4 OFF DIP SW6 5 OFF IDLE time slot code select MARK OxFF DIP SW6 7 OFF No idle time slot Receive amp Transmit timing from 1 RX recovery DIP SW6 1 ON DIP SW6 2 OFF Data port receive clock polarity INVERT DIP SW6 3 ON Data port transmit clock polarity INVERT DIP SW6 4 ON Data port set to DTE mode DIP SW6 8 ON DIP SW2 DIP SW3 1 2 3 4 5 6 7 8 1 2 3 4 2 6 7 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON DIP SW4 DIP SW5 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON DIP SW6 1 2 3 4 5 6 7 8 OF OF OF ON ON ON ON ON G703EI Feb 2000 33 Chapter 2 Configuration and Operation 2 3 G 703 E1 FE1 FE1 A Pack factory settings DIP SW1 DIP SW2 1 2 3 4 5 1 2 3 4 5 6 OF O
13. HDB3 line code external Tx and Rx clock QRSS pattern and run forever Run the BERT Confirm 2 048Mbps rate and no receive errors If testing a remote link inject a forced error and confirm loopback receipt of one error 703 1 Feb 2000 41 Chapter 3 Troubleshooting The BTM 10 may also be configured to do high speed BERT from its data port Alternatively our HCT 6000 or HCT BERT 2M analyzers may be configured to connect to the data port side of the DUT In this setup the unit and the link may be tested n x 64kbps n x 64kbps Host mm 3 RX _ 85 530 Transmission Tx 7 2 E Facilities 6 703 PACK 6 703 PACK Loca Remote 10 or HCT 8000 Figure 3 2 Link testing with BTM 10 or HCT 6000 In this example the El units are connected to a network and derive their timing from the network recovery The tester is connected directly to the RS 530 interface of the data port The clock on the tester is set to external Set up for BERT test and run a pattern to the data port Place the loopback switch of the local unit to Data Port The receive data will be OK if the cabling and interface are functioning properly Remove the local data port loopback To test the local unit and the E1 link place the remote unit in G 703 loopback Now the BERT pattern should be sent to the remote unit and looped back to the local side To test end to end apply a loop at the remote host using a loopback connect
14. may be linked to a G 703 E1 Pack Series at data rates depending on model of 64Kbps to 2048Kbps User data is placed into the frame using only the required number of timeslots Timeslot assignment is accomplished according to the Data Port speed and manual setting of DIP switches The main 1 link may be clocked from the recovered receive clock LBT from the Data Port clock or from an internal oscillator Features e LTU Line Terminating Unit built in unit e Single port access to amp Fractional E1 services e Interface conversion between G 703 El RS 530 RS 449 36 X 21 or V 35 e Data rate DIP selectable Sync Nx64Kbps 2048Kbps G703E1 amp G703E1 U excluded e Fully transparent signal conversion under unframed mode e Clock Regeneration from incoming HDB3 Data e Diagnostics Loopbacks both for G 703 Recovery and Data port sides e All 1 s monitor e Decoded data in NRZ form e Cascadable multiplexer function G703FE1 A only e DC 9V input power 703 1 Feb 2000 1 Chapter 1 Introduction 1 1 Functional Description The G 703 E1 Pack Series are single port access units which depending on model provide 1 G703E1 amp G703E1 U Fractional EI G703FE7 or Fractional cascade multiplexing G703FE1 A access services G 703E1 8 G703FE1 operate on a line attenuation of up to 30 dB on twisted pair or coax cable providing an approximate operating range of up to 1
15. the above figure four G703FE1 A s are cascaded All access units Dip Switches SW6 7 MUST be set to ON when cascaded The timing source for all the G703FE1 A s is from the network Therefore all timing sources should be set to RECOVERY SW6 1 amp 2 ON OFF The devices connected to the Data Port side depicted on the right side of the figure MUST derive their timing clock from the G703FE1 As recovered clock Any combination of Data Port interface RS 530 RS 449 V 35 and X 21 may be used Timeslot selection is user configurable and must match the setup of the E1 Mux on the left side of the example G703EI Feb 2000 36 Chapter 2 Configuration and Operation Fig 5 G703FE1 A Cascade application Host Plo ps Host TS2 3 128kbps ix TS5 6 128kbps T 2 Transmission 703 FE1 A 2 G 703 FE1 A 2 CASCADED CASCADED TS2 3 128kbps TS5 6 128kbps In this figure the G703FE1 A s are cascaded on both sides of the El transmission medium The host to host connections are using the two timeslots 2 and 3 SW2 3 amp 4 ON ON for a combined bandwidth of 128kbps If the cascaded pairs were directly connected then one of the four G703FE1 A s would have its timing source set either to the DATA PORT SW6 1 amp 2 OFF ON or to Internal Oscillator SW6 1 amp 2 ON ON The other three access units would be set to RECOVERY SW6 1 amp 2 ON OFF In the above network applicatio
16. understanding of the settings and configuration of related equipment is mandatory when integrating many vendors equipment Having the proper tools is also important in any troubleshooting endeavor When troubleshooting El connections a transmission analyzer is an invaluable tool in isolating configuration line or hardware problems CTC Union s BTM 10 El Transmission Analyzer is an excellent choice The unit is very portable battery operated with built in keyboard and LCD display The tester is designed to do BERT Bit Error Rate testing via El connection or via Data Port connection at speeds up to 2 048Mbps G703EI Feb 2000 39 Chapter 3 Troubleshooting 3 1 Connections When checking for connection related problems start by looking for physical defects in the connectors themselves Check for broken or bent pins corrosion and mis wiring Check cables for pinching that could indicate a broken or shorted wiring For twisted pair wiring confirm that a wire pair actually goes to the proper transmit or receive signal pairs Build yourself an RJ 45 break out box from a pigtail converter Loop back the pairs in the BOB and confirm continuity with a multi meter 3 2 Configuration When physical connections have been confirmed start looking for configuration problems Confirm that the proper line code is being used The PACK Series all support AMI and HDB3 line codes In almost all instances the line code will be HDB3 Confirm setting
17. 2 individual time slots numbered 0 31 As described previously each time slot consists of an individual 64Kbps channel of data In the FAS format time slot 0 of every other frame is reserved for the frame alignment signal pattern Alternate frames contain the FAS Distant Alarm indication bit and others bits reserved for national and international use Multi Frame Alignment Signal MFAS MFAS framing uses Channel Associated Signaling CAS to transmit A B C D bit signaling information for each of 30 channels This method uses the 32 time slot frame format with time slot 0 for the FAS and time slot 16 for the Multi Frame Alignment Signal and the Channel Associated Signaling This mode of framing is commonly used when connecting to PABX equipment 703 1 Feb 2000 12 Chapter 1 Introduction 1 line signal The basic El line signal is coded using the Alternate Mark Inversion AMI or HDB3 rule In AMI coding ones are alternately transmitted as positive and negative pulses whereas zeros are transmitted as a zero voltage level AMI is not used in most 2 048Mbps transmissions because synchronization loss occurs during long strings of data zeros In HDB3 coding a string of four consecutive zeros is replaced with a substitute string of pulses containing an intentional bipolar violation The HDB3 code substitutions provide high pulse density so that the receiving equipment is able to maintain synchronization with the rece
18. 2000 G703E1 Sep 2002 54 CTC Union Technologies Co Lid aN Far Eastern Vienna Technology Center Neihu Park 60 Zhouai St 114 Taipei Taiwan union Phone 886 2 2659 1021 Rep Fax 886 2 2799 1355 E mail info ctcu com http www ctcu com
19. 49 58 D2MD3F000 X21 DTE M DB25 M to DB15 M 1 meter X 21 DTE 58 D1MD2M003 X21 DTE F DB25 M to DB15 F 1 meter X 21 DTE 58 D1FD2M003 X21 DCE M DB25 M to DB15 M 1 meter X 21 DCE 58 D1MD2M004 X21 DCE F DB25 M to DB15 F 1 meter X 21 DCE 58 D1FD2M004 703 1 Feb 2000 50 CTC Union Technologies 886 2 27991355 886 2 26591021 Attn Technical Support Division E mail ctcu msz2 hinet net From Company Taipei Taiwan Name Tel __ C e MODEL G703E1 G703FE1 G703FE1 A ACTIVITY As attached DIP switch setting table SYS CONFIGURATION Question G703EI Feb 2000 51 I Technical Inquiry Form MODEL No Cl G703E1 Cl G703FE1 G703FE1 A Please fill in the DIP switches configuration with V marks into the following table Send it to us by fax and we will reply to you immediately Your Setting Suqaestion FUNCTION ON OFF ON OFF E1 Line Impedance Setting E1 Line Impedance Setting E1 Line Impedance Setting E1 Line Impedance Setting E1 Line Impedance Setting Unframed framed Timeslot 1 Timeslot 2 Timeslot 3 Timeslot 4 Timeslot 5 6 7 8 9 SW NO SW1 5 SW Timeslot Timeslot Timeslot Timeslot Timeslot 10 Timeslot 11 Timeslot 12 Timeslot 13 Timeslot 14 Timeslot 15 Timeslot 16 Timeslot 17 Timeslot 18 Timeslot 19 Timeslot 20 Time
20. 5Km using 22AWG wire The G 703FE1 A 8 G703E1 U operate on a line attenuation of up to 43 dB on twisted pair or coax cable providing an approximate operating range of up to 2Km using 22AWG wire 703 1 Pack Series supports local control and diagnostics via DIP Switch settings and a simple slide switch all located on the front panel These features enable users to easily configure the unit execute the loopback functions and monitor the network status locally The G 703 E1 Pack Series all operate from DC 9 volts using a supplied AC adapter The adapters are available with either a 110 North America or a 220V AC Europe input rating and with various plug configurations for world regions The units are built in either a small compact aluminum or plastic case G703E1 U uses a plastic case that may be placed conveniently anywhere on a desktop or shelf The Small Pack Series sports four specific models with various functional differences as outlined below Model G703E1 unframed E1 This model provides G 703 1 access at the full unframed rate of 2 048Mbps only The unit is housed in a metal case 703 1 Feb 2000 2 Chapter 1 Introduction Model G703FE1 unframed framed fractional 1 This model provides fractional G 703 access at rates of 64Kbps up to a maximum of 2 048Mbps in 64K multiples The unit is housed in a metal case Model G703FE1 A cascaded E1 This model provides the same function
21. F OF OF OF OF ON ON ON ON ON G703FE1 A version 0101 or later others set off off on on on DIP SW3 DIP SW4 11213 415 16 7 8 112131415 6 DIP SW5 DIP SW6 11213 41516 7 8 112131415 6 UNFRAME mode Clock 2048Kbps Line Impedance 75 ohms for G703FE1 A Model RX timing from Recovery TX timing from Data Port TX RX clock polarity Normal 703 1 Feb 2000 34 Chapter 2 Configuration and Operation 2 4 Application Notes Fig 1 G703E1 Point to Point application Host 2048kbps 2048kbps M Direct 6 703 E1 or leased line G703E1 G703E1 Point to point Point to point In the above point to point application the G703E1 packs are connected by a direct wire connection over 4 wire leased line The G 703 E1 line is running in unframed mode at the full 2 048Mbps speed Since the units are not connected to a network one of the units must be set to be the timing source for the 1 link Either one of the G7ZOSET s timing source SW6 1 amp 2 must be set to Data Port Internal or Recovery Data port transparent timing The other G703E1 MUST then be set to Recovery for relia
22. G 703 E1 DIGITAL ACCESS UNITS INSTALLATION and OPERATION MANUAL C Technologies Co Ltd CTC Union Technologies Co Ltd Far Eastern Edison Science and Technology Center 6F 3 No 15 Lane 360 NeiHu Rd Section 1 NeiHu Taipei 114 Taiwan G703 Pack Series G 703 El Installation and Operation Manual Version 2 0 February 2000 Printing Version 2 1 September 2002 Added Pin 8 amp 10 definitions page 43 V2 0 upgraded model addendum added page 54 This manual supports the following models G703E1 G703FE1 G703FE1 A G703E1 U G703FE1 V2 0 G703FEI A V2 0 The information contained in this document is subject to change without prior notice Table of Contents Chapter 1 Introduction 1 0 TO GUCHON aves deste mace et eee 1 1 Functional Description 1 2 System Timing Considerations 1 3 Typical System Applications 1 4 El Signal Structure r n 1 5 Technical edd egestate cese Chapter 2 Configuration and Operation 2 0 Slide Switch 8 2 1 DIP Switch Functions 2 2 Examples of DIP Switch Settings 2 3 G 703 Pack Factory Settings
23. G 703 E1 Pack Series all have the ability to perform local loopback of either the G 703 signals or Data Port signals via a front panel slide switch When used with a PCM transmission analyzer the loopback function allows progressive BERT testing of the 1 link Please refer to Chapter 3 Troubleshooting for details Multiple clock source selection provides maximum flexibility in connecting both the El and user data interface The E1 link may be clocked from the recovered receive clock from the user data port or from the internal oscillator The next section will explain the timing modes available in detail 703 1 Feb 2000 4 Chapter 1 Introduction 1 2 System Timing Considerations The G 703 E1 Pack Series have the flexibility to meet the timing requirements of various system configurations The timing mode for the 1 link and the user channel is selected by DIP switch settings The G 703 E1 Pack Series 1 link receive path always operates on the receive clock The G 703 E1 Pack Series recovers the receive clock from the received El link data signal The source of the G 703 E1 Pack Series 1 link transmit clock may be selected by the user The following E1 link transmit timing modes and Data port transmit receive modes are available Recovery Timing e Transparent Timing e Data Port Timing e Internal Oscillator The following pages will explain each of the timing modes in more detail 703 1 Feb 2000 5
24. IVE 5 OFF TIME SLOT 28 IDLE ON TIME SLOT 28 ACTIVE 6 OFF TIME SLOT 29 IDLE ON TIME SLOT 29 ACTIVE 7 OFF TIME SLOT 30 IDLE ON TIME SLOT 30 ACTIVE 8 OFF TIME SLOT 31 IDLE ON TIME SLOT 31 ACTIVE Table 2 8 G703FE1 FE1 A Pack Setting Time Slot 24 31 DIP SW6 FUNCTIONS DIP SW NO SW STATE FUNCTION REMARK 1 2 OFF OFF RX timing from recovery TX timing Reference from data port OFF RX and TX timing all from data port DTE DCE timing ON OFF RX and TX timing all from recovery ON ON RX and TX timing all from int osc Source select Table 2 11 3 OFF RX clock polarity NORMAL ON RX clock polarity INVERT 4 OFF TX clock polarity NORMAL ON TX clock polarity INVERT 5 OFF CRC4 select DISABLE NO USE ON G703E1 ON CRC4 select ENABLE NO USE ON G703E1 6 OFF SIGNALING mode select CAS NO USE ON G703E1 ON SIGNALING mode select CCS NO USE ON G703E1 7 OFF IDLE code select MARK OxFF NO USE ON G703E1 ON IDLE code select FLAG 0x7E NO USE ON G703E1 8 OFF DATA PORT set to DCE ON DATA PORT set to DTE Table 2 9 G703E1 FE1 DIP SW6 Functions 703 1 Feb 2000 26 Chapter 2 Configuration and Operation DIP SW6 FUNCTIONS DIP SW NO SW STATE FUNCTION COMMENT 1 2 OFF OFF RX timing from recovery TX timing Reference from data port OFF
25. Introduction In the previous example the two hosts are connected with 960Kbps bandwidth using fifteen timeslots TS1 TS15 The PBXs are also using 960Kbps on fifteen timeslots TS17 1531 The framing mode used above is commonly referred to as PCM30 In this framing mode timeslot zero is used for frame alignment FAS and timeslot 16 is used for signaling CAS Of the 32 timeslots available in the El frame 30 are available for carrying the data payload The next section will describe in more detail the framing modes for 1 transmissions 703 1 Feb 2000 11 Chapter 1 Introduction 1 4 E1 signal structure The data transferred over the El line is organized into frames with each E1 frame containing 256 bits The 256 bits are comprised of a total of 32 time slots each containing eight bits that carry the data payload The 1 line operates at a nominal rate of 2 048Mbps If we divide that line rate by 32 the number of time slots we find that the rate of each timeslot is 64Kbps El transmission utilizes two main types of framing Frame Alignment Signal FAS and Multi Frame Alignment Signal MFAS Framing is necessary in order for equipment receiving the E1 signal to be able to identify and extract the individual channels PCM 30 CAS transmission systems use MFAS framing along with the FAS framing PCM 31 CCS transmission systems use only FAS framing Frame Alignment Signal FAS The 2 048 Mbps frame consists of 3
26. LOT 9 ACTIVE 3 OFF TIME SLOT 10 IDLE ON TIME SLOT 10 ACTIVE 4 OFF TIME SLOT 11 IDLE ON TIME SLOT 11 ACTIVE 5 OFF TIME SLOT 12 IDLE ON TIME SLOT 12 ACTIVE 6 OFF TIME SLOT 13 IDLE ON TIME SLOT 13 ACTIVE d OFF TIME SLOT 14 IDLE ON TIME SLOT 14 ACTIVE 8 OFF TIME SLOT 15 IDLE ON TIME SLOT 15 ACTIVE Table 2 6 G703FE1 1 Pack Setting Time Slot 8 15 DIP SW4 SETTING TIME SLOT 16 23 DIPSW NO SW STATE FUNCTION REMARK 1 OFF TIME SLOT 16 IDLE ON TIME SLOT 16 ACTIVE Note 1 2 OFF TIME SLOT 17 IDLE ON TIME SLOT 17 ACTIVE 3 OFF TIME SLOT 18 IDLE ON TIME SLOT 18 ACTIVE 4 OFF TIME SLOT 19 IDLE ON TIME SLOT 19 ACTIVE 5 OFF TIME SLOT 20 IDLE ON TIME SLOT 20 ACTIVE 6 OFF TIME SLOT 21 IDLE ON TIME SLOT 21 ACTIVE 7 OFF TIME SLOT 22 IDLE ON TIME SLOT 22 ACTIVE 8 OFF TIME SLOT 23 IDLE ON TIME SLOT 23 ACTIVE Table 2 7 G703FE1 FE1 A Pack Setting Time Slot 16 23 Note 1 If you are running under CAS mode do not set DIP Sw4 1 on the unit will enter test mode 703 1 Feb 2000 25 Chapter 2 Configuration and Operation SW5 SETTING TIME SLOT 24 31 DIPSW NO SW STATE FUNCTION REMARK 1 OFF TIME SLOT 24 IDLE ON TIME SLOT 24 ACTIVE 2 OFF TIME SLOT 25 IDLE ON TIME SLOT 25 ACTIVE 3 OFF TIME SLOT 26 IDLE ON TIME SLOT 26 ACTIVE 4 OFF TIME SLOT 27 IDLE ON TIME SLOT 27 ACT
27. a two position slide switch that controls the flow of DC power to the internal circuitry NOTE Changes to the DIP switch settings are only recognized during CPU initialization Use the POWER switch to cycle the DC off and then on This will RESET the CPU and it will read the new DIP switch settings The other slide switch on the G703E1 Small Pack Series is for loopback operations The middle position is for normal operation The loopback positions provide an internal loopback on either the Data Port or the 1 Recovery Port 2 1 DIP Switch Functions Refer to the following tables for the functions of the DIP switches located along the side of the G703E1 Small Pack Series The G703FE1 and G703FE1 A provide a total of 31 DIP switches for timeslot setting Each switch will activate or idle one 64Kbps timeslot follow the Nx64 formula On the G703E1 these switches have no function as it operates in unframed mode only Fractional E1 uses only a fraction of the total available timeslots For example if you wish to translate only 192K from a 2048K line you only need to set three dip switches 192K 64K 3 You may select any three of the 32 timeslots except TSO TSO is required for frame alignment when running in frame mode If CAS PCM30 framing is required TS16 will also be unavailable for data transmission NOTE If you are running under CAS mode do not set DIP Sw4 1 Time Slot number 16 on the unit will enter test mode
28. ack DIP Switch Quick Reference Refer to the sticker on the unit and check the appendix for any updated information 703 1 Feb 2000 23 2 G703E1 Pack Series DIP setting details metal case DIP SW2 SETTING FRAME UNFRAME amp TIME SLOT 1 7 DIPSW NO SW STATE FUNCTION REMARK 1 OFF UNFRAME MODE NOTE 1 3 ON FRAME MODE NOTE 2 3 2 OFF TIME SLOT 1 IDLE ON TIME SLOT 1 ACTIVE 3 OFF TIME SLOT 2 IDLE ON TIME SLOT 2 ACTIVE 4 OFF TIME SLOT 3 IDLE ON TIME SLOT 3 ACTIVE 5 OFF TIME SLOT 4 IDLE ON TIME SLOT 4 ACTIVE 6 OFF TIME SLOT 5 IDLE ON TIME SLOT 5 ACTIVE 7 OFF TIME SLOT 6 IDLE ON TIME SLOT 6 ACTIVE 8 OFF TIME SLOT 7 IDLE ON TIME SLOT 7 ACTIVE Table 2 5 G703FE1 FE1 A Pack Setting Time Slot 1 7 NOTE 1 In UNFRAMED MODE the Clock Rate is FIXED at 2048KHz therefore the settings of TIME SLOT 1 31 DIP settings do not matter NOTE2 In FRAMED MODE the Clock Rate 64KxN NUMBER OF TIME SLOTS active NOTES In the G703E1 unit DIP SW2 SWS are completely ignored 703 1 Feb 2000 24 2 SW3 SETTING TIME SLOT 8 15 DIPSW NO SW STATE FUNCTION REMARK 1 OFF TIME SLOT 8 IDLE ON TIME SLOT 8 ACTIVE 2 OFF TIME SLOT 9 IDLE ON TIME S
29. ble operation Fig 2 G703E1 Point to Point network application Host 2048kbps H e E1 eot m Rye Transmission Facilitie G703E1 G703E1 Point to point Point to point In this point to point application both GZOSET s are connected to an El transmission facility This could be a series of PCM multiplexers than run through a very high speed backbone connection In any case the transmission system is designed to be transparent The clock source is from the network therefore both G703ET s timing source SW6 1 amp 2 should be set to Recovery The frame mode and line code of each G703E1 pack MUST match In this example the frame mode is unframed while the recommended line code is HDB3 G703EI Feb 2000 35 Chapter 2 Configuration and Operation Fig 3 G703FE1 Point to Point network application nx64kbps Host Host nx 64kbps 1 2 4 transmission J Tx G 703 FE1 G 703 FE1 Point to point Point to point In the above point to point network application both G703FE1 s timing source SW6 1 amp 2 should be set to Recovery The frame modes PCM30 PCM3 1 CRC line code AMI HDB3 and timeslot assignment must match for each G703FE1 Unused timeslots may be set to MARK Oxff or Flag 0x7e depending upon setting of SW6 7 Fig 4 G703FE1 A Cascade application nx 64kbps nx 64kbps 1 Transmission Facilities PBX G 703 FE1 A 4 CASCADED In
30. ived signal E1 link line coding The G703E1 U model of the G 703 E1 Pack Series supports two line codes AMI coding HDB3 coding All other models support only HDB3 coding 1 framing formats The G 703 E1 Pack Series supports three frame formats depending upon the model type Models G703E1 and G703E1 U Unframed format only no FAS or CAS Models G703FE1 and G703FE1 A Unframed format FAS CCS PCM 31 format MFAS CAS PCM 30 format 703 1 Feb 2000 13 Chapter 1 Introduction 1 5 Technical Specifications E1 link Framing Unframed Framed G703E1 amp E1 U CCS PCM31 CAS PCM30 CRC4 ON OFF Bit Rate 2 048 Mbps Line Code G703E1 U ONLY HDB3 Line Impedance 75 ohms 120 ohms Relative Receive Level Pulse Amplitude Zero Amplitude Transmit Frequency Tracking Internal Timing Loopback Timing External Timing Jitter Performance Complies With Interface Connectors 0 to 30dB G703E1 amp G703FE1 0 to 43dB G703FE1 A amp G703E1 U Nominal 2 37V 10 for 75 ohms Nominal 3 00V 10 for 120 ohms 0 1V 30 ppm 50 ppm 100 ppm According to ITU G 823 ITU G 703 G 704 G 706 and G 732 shielded RJ 45 BNC x2 703 1 Feb 2000 14 Chapter 1 Introduction User Data Port Channel Interface Types Connectors RS 530 Adapter Cables V 35 I F X 21 I F RS 449 I F Line Code Data Rate Clock Modes RECOVERY INT OSC Transparent Da
31. ming out the pins The user data transmit timing is input from the ETC pins and provides the clock for the E1 transmit link 703 1 Feb 2000 9 Chapter 1 Introduction 1 3 Typical System Applications General In a typical application Figure 1 5 the G 703 E1 Pack Series is used in a point to point connection The synchronous data channels of each router are connected over an El network connection 2048Kbpe 2048Kbps v 38 6 703 v Kal Transmission 2 1 Facilities Router Ger 9703E1 U Router Pointto point Poirt to point Figure 1 5 Point to Point Application using G703E1 U Fractional 1 data service is based the assumption that the user data rate is a fraction of the available 1 bandwidth in multiples of 64K nx Eur n x64kbps X 1 x E Facisties ROUTER ROUTER GTO3IFE1 GTOSIFE1 Point to point Polntto poirt Figure 1 6 Fractional E1 Application using 70 In the next figure the available El Time Slots are divided Fractional 1 and cascaded multiplexed Various data interfaces may be employed in each G 703 E1 Pack Series to provide connections between hosts clients or PBXs across the transmission facility 5 S60kbps 7517 31 1960 d Transmission lt Facilities 3 G 703IFE1 A 2 G T03IFE1 A 2 CASCADED CASCADED Figure 1 7 Cascaded application using G703FE1 A 703 1 Feb 2000 10 Chapter 1
32. n all units would be set to Recovery SW6 1 amp 2 ON OFF access units Dip Switches SW6 7 MUST be set to when cascading 703 1 Feb 2000 37 Chapter 2 Configuration and Operation G703EI Feb 2000 38 Chapter 3 Troubleshooting 3 0 General As in troubleshooting any type of computer network or communication problem it is very important to follow a very logical procedure During any troubleshooting session the importance of taking notes cannot be overstated It is very easy to forget connections or settings when troubleshooting a large network Notes will help in logically checking all items and will also serve as a valuable aid in writing a system log or other report to your supervisor or your customer following successful completion of work Notes also serve as important tools for future troubleshooting or for training of new personnel or just simply as a memory refresher When dealing with troubleshooting of first time installation problems the best place to start is with double checking of configuration settings and connections It is very easy to misinterpret a DIP switch setting and cause the failure of a link Initial configuration problems will also cause either immediate failure or inconsistent operations Although the G703E1 Pack Series all comply with ITU G 703 recommendations it is very important to understand the differences in terminology between different equipment manufactures A thorough
33. ohms 121304 ON ON ON ON Example 2a Set line impedance to 120 ohms DIP SW1 1 SWI 3 4 5 OFF OFF 703 1 Feb 2000 29 Chapter 2 Configuration and Operation Example 3 UNFRAME mode Clock rate fixed 2048Khz DIPSW2 1 OFF G703FE1 and G703FE1 A only Receive timing from E1 RX recovery Transmit timing from data port DIP SW6 1 amp 2 OFF Data port set to DCE mode DIP SW6 8 OFF Data port receive clock polarity NORMAL DIP SW6 3 OFF Data port transmit clock polarity NORMAL DIP SW6 4 OFF NOTE X means Don t Care DIP SW2 DIP SW3 1 2 3 4 5 6 7 1 2 3 4 5 6 7 o X X X X X X X X X X X X X X X x x x x x x x SW4 SW5 1 2 3 4 5 6 7 1 2 3 4 5 6 7 EE HE SES P SES S SUE DIP SW6 1 2 3 4 5 6 7 X x x G703EI Feb 2000 30 Chapter 2 Configuration and Operation Example 4 FRAME amp CAS mode PCM30 DIP SW2 1 DIP SW6 6 OFF G703FE1 and G703FE1 A only Clock rate 64Khz insert in time slot 12 DIP SW3 5 ON CRC4 OFF DIP SW6 5 OFF IDLE time slot code select MARK OxFF
34. or 703 1 Feb 2000 42 Appendix A Cable Definitions Pin Definitions of 703 1 Pack Series Data Port G703E1 Pack Series DB25 Data Port PIN DEFINITIONS DB25 FEMALE PIN DTE DCE COMMENT PIN NUMBER NAME MODE MODE 1 SHIELD TD A OUTPUT INPUT RD A INPUT OUTPUT RTS A CTS A DSR A GROUND DCD A OUTPUT RC B INPUT OUTPUT DCD B OUTPUT ETC B OUTPUT INPUT TC B INPUT OUTPUT CTS B TD B OUTPUT INPUT TC A INPUT OUTPUT RD B INPUT OUTPUT RC A INPUT OUTPUT POWER IN RTS B DTR A DSR B DTR B ETC A OUTPUT GROUND Table A 1 Pin Definitions of G703E1 Pack Series Data Port IN ID tn 1o NOTE 1 RTS A AND CTS A INTERNALLY CONNECTED TOGETHER NOTE 2 DSR A AND DTR A INTERNALLY CONNECTED TOGETHER NOTE 3 RTS B AND CTS B INTERNALLY CONNECTED TOGETHER NOTE 4 DSR B AND DTR B INTERNALLY CONNECTED TOGETHER NOTE 5 This pin is used by the HCT 6000 and HCT BERT 2M to determine the presence of the G703E1 Pack Series Access Unit 270271 Boh NNN 43 G703E1 Sep 2002 Appendix Cable Definitions A 2 RS 530 Cables 25 conductor round 1 to 1 100cm Male DB25 Male or Female DB25 PIN PIN 1 gt 1 2 lt gt 2 3 lt gt 3 4 lt gt 4 5 lt gt 5 6 lt gt 6 7 lt gt 7 8 lt gt 8 9 lt gt 9 10 lt gt 10 11 lt 11 12 12 13 13 14 14 15 15 16
35. s Framing errors can result if setting errors are made Confirm the mode whether unframed framed PCM31 or framed PCM30 and whether CRC is enabled or not If both sides of the E1 link are using different framing there will be alarm indications Data errors may result if the timeslot assignments in fractional mode do not match Check the settings carefully For reduced monthly charges a customer may only request a fraction of the E1 bandwidth In this instance an ISP may provide a fraction of the full 2 048Mbps bandwidth to a customer by utilizing Fractional E1 If only 512Kbps is requested only eight 8 timeslots are required to carry the data payload Carefully check the settings at the central site and confirm that the same eight timeslots are active on each end of the link 703 1 Feb 2000 40 Chapter 3 Troubleshooting 3 3 Unit Testing The examples given here all refer to use of CTC Union s BTM 10 El Transmission Analyzer To test any of the PACK Series units alone connect either an RJ 45 E1 cable two coaxial cables between the Device Under Test DUT and the BTM 10 tester G 703 Pack Series BTM 10 E1 Figure 3 1 Test setup E1 link Configure the PACK Series unit for unframed HDB3 line code termination 75 ohm if using coaxial connections or 120 ohm for twisted pair and internal clock source Place the loopback switch on the G 703 side Configure the analyzer for EI BERT unframed 75 ohm termination
36. s as the G703FE1 model with the addition of a cascade mode In cascade mode the unused timeslots may pass through the received 1 data transparently allowing stacking of units in a multiplexer fashion The unit is housed in a metal case Model G703E1 U unframed E1 This model provides identical functions as the G703E1 model in a slightly more compact and lighter weight plastic case The unit operates in full unframed 1 2 048Mbps mode only The G 703 E1 Pack Series pack the data channel into user defined 1 link time slots except for unframed models The unused time slots may have IDLE code inserted in fractional models or have the receive side time slots data inserted in the cascade model The G 703 E1 Pack Series user data channel is RS 530 standard Adapter cables provide interfaces for V 35 X 21 and RS 449 The desired interface may be set to either DCE or DTE mode via DIP switch settings making it convenient to connect to a wide variety of terminal or communication equipment For maximum flexibility all framed models of the G 703 E1 Pack Series support data rates in multiples of 64Kbps to 2 048Mbps and flexible time slot assignment allowing the user to specify the selection of time slots carrying the data payload 703 1 Feb 2000 3 Chapter 1 Introduction The G 703 Pack Series fully meet all of the El specifications including ITU recommendations G 703 G 704 G 706 G 732 G 823 The
37. slot 21 Timeslot 22 Timeslot 23 Timeslot 24 Timeslot 25 Timeslot 26 Timeslot 27 Timeslot 28 Timeslot 29 Timeslot 30 Timeslot 31 Rx Tx timing source Rx Tx timing source Rx Polarity Tx CIk Polarity CRC4 CAS PCM30 or CCS PCM31 Unused Timeslot Data port 5 3 5414 SW5 SW6 1 4 O1 CO 100 140 JOT OO O1 OO N 100 O1 OO N 07 amp OO NI Gr vvn vu Va Technical Inquiry Form MODEL No 1 G703E1 U Please describe your application environment and fill in the following DIP switch configuration table with V marks Send to us by fax and we will reply immediately CUSTOMER CTC SUGGESTION DIP SW FUNCTION SETTING ON OFF ON OFF Line impedance Data port Line code LBO LBO LBO LBO Timing source GQ N Timing source Remarks Be sure the Loopback SW is in the normal position Your application CTC UNION TECHNOLOGQIES CO LTD Far Eastern Edison Science and Technologies Center Nei Hu HI TEC Park 6F 3 No 15 LANE 360 Sec 1 Nei Hu Road Nei Hu Taipei Taiwan R O C TEL 886 2 2659 1021 Rep FAX 886 2 2799 1355 2659 0237 E mail info ctcu com G703EI Feb 2000 53 Commencing with
38. ta Port Control Signals Time slot allocation RS 530 Standard adapter cables for V 35 X 21 and RS 449 25 pin D type Female on unit 34 pin M block Female or Male available 15 pin D type Female or Male available 37 pin D type Female or Male available NRZ G703E1 E1 U 2048kbps unframed only G703FE1 FE1 A nx64kbps where n equal 1 to 31 in CCS PCM31 and n equal 1 to 30 in CAS PCM30 Receive and transmit clock recovered to the synchronous Data Port Receive and transmit clock internal oscillator to the synchronous Data Port Receive clock to the synchronous and transmit clock from the synchronous device Receive and transmit clock from the synchronous Data Port CTS constantly ON DSR constantly ON except during test loops DCD constantly ON except during signal loss Not Available in G703E1 or G703E1 U User defined for G703FE1 and G703FE1 A Note for G703FE1 A CTS is internally connected to RTS DSR is internally connected to DTR 703 1 Feb 2000 15 Chapter 1 Introduction LED indicators G703E1 FE1 FE1 A metal case DTE Green DCE Green Rx Sig Loss Red Tx Clk Loss Red Alarm Red TD Yellow RD Yellow Test Red Data Port set to DTE mode Data Port set to DCE mode E1 link signal loss E1 link Tx Clock loss E1 link alarm include BPV error CRC4 error Frame slip All Remote alarm Transmit data data port Receive data data port Loopback active
39. the user data transmit timing 703 1 Feb 2000 7 Chapter 1 Introduction e Data Port timing In this mode G 703 E1 Pack Series E1 link transmit clock is locked to the clock signal provided by the user Data Port connected to the data channel LOCAL G703E1 Pack E1 transceiver Figure 1 3 Data Port Timing When the user data port is in DTE mode the clock input from the RC pins provides the clocking source for both the user data receive timing out the ETC pins and the E1 transmit link When the user data port is in DCE mode the clock input from the ETC pins provides the clocking source for both the user data receive timing out the RC TC pins and the E1 transmit link 703 1 Feb 2000 8 Chapter 1 Introduction e Transparent timing In this mode the G 703 E1 Pack Series E1 link receive clock is the source for the data port receive clock while the E1 link transmit clock is locked to the clock signal provided by the user Data Port connected to the data channel LOCAL G703E1 Pack E1 transceiver Figure 1 4 Transparent Timing When the user data port is in DTE mode the El receive clock provides the clocking source for the user data receive timing out the ETC pins The user data transmit timing is input from the RC pins and provides the clock for the 1 transmit link When the user data port is in DCE mode the El receive clock provides the clocking source for the user data receive ti
40. u 8 Timeslot 8 thru 15 ignored if SW2 1 is SWA 1 thru 8 Timeslot 16 thru 23 set OFF Unframed SW5 thru 8 Timeslot 24 thru 31 SW6 1 2 Rx Tx timing source OFF OFF Rx lt Recovery Tx lt Data port transparent OFF ON Rx Tx lt Data port ON OFF Rx Tx lt Recovery ON ON Rx Tx lt Internal Oscillator 3 OFF Rx Clk Polarity Normal ON Rx Clk Polarity Inverted 4 OFF Tx Polarity Normal ON Tx Clk Polarity Inverted 5 OFF CRC4 Disabled ON CRC4 Enabled 6 OFF CAS PCM30 mode ON CCS PCM31 mode 7 OFF Unused Timeslot MARK FF ON Unused Timeslot FLAG 7E 8 OFF Data port is DCE ON Data port is DTE Table 2 2 G703FE1 Pack DIP Switch Quick Reference Refer to the sticker on the unit and check the appendix for any updated information 703 1 Feb 2000 21 Chapter 2 Configuration and Operation Check carefully this table is for the G703FE1 A only SW No DIP SW STATUS FUNCTIONS Remarks SWI 1 2 3 4 5 El Line Impedance Setting OFF OFF OFF OFF OFF 120 ohm line impedance Note 1 ON ON 75 ohm line impedance SW2 1 OFF Unframe Note 2 ON Frame 2 thru 8 Timeslot 1 thru 7 Cascaded units MUST SW3 1 thru 8 Timeslot 8 thru 15 NOT be assigned SW4 1 thru 8 Timeslot 16 thru 23 identical or overlapping SW5 thru 8 Timeslot 24 thru 31 timeslots SW6 1 2 Rx Tx timing source OFF OFF Rx lt Recovery Tx lt Data port Cannot be used while sw6 7 ON OFF ON Rx Tx lt Data port
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