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MicroLink ISDN/TLV.34

1. 5 ci la Diva OR RON TIS LERRA 91 AT Commands in BEI GT E Don dE CONUS Pera 91 Technical Specifications tinis 95 R I1 Socket Pin ASSIORITIBTIE uat oett t bct te hee Pob n e o s o pud 96 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 3 Contents C RS 232 V 4 INLET AC genre AMAN BRA AA A 98 D ig cc M M 99 E Answers to Frequently Asked Questions sees 103 Sp AI cT 103 CR 106 A Gas Uo 107 Sed DO M E 107 F zii Tess ofa o ro 109 G 113 118 OR 120 4 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Introduction 1 Introduction About this manual Symbols and conventions S interface S T interface Changes to this manual Package contents This manual describes the installation configuration and operation of the ELSA M icroLink ISDN TLV 34 ISDN terminal adapter The following conventions are used in this manual o denotes important information A filled in box indicates a list of items Procedures consist of numbered steps Lo Bold text denotes the default values for AT commands and S registers Brackets gt indicate ASCII characters and characters on a keyboard For example CR
2. Appendix RS 232 V 24 Interface C RS 232 V 24 Interface The interface between your M icroLink ISDN TLV 34 and computer consists of several data control and signal lines The front panel LEDs show the status of most of these interface lines The following table lists the pin assignment of the RS 232 V 24 interface for 9 pin and Sin connectors 9 pin 25 pin ITU T DIN USA Description Signal direction s 17 qm e juo 0 102 E2 GND Signal Ground B 104 a RxD Receive Data lt ISDN modem 107 DSR Data Set Ready lt ISDN modem 106 CTS Clear to Send lt ISDN modem 9 125 RI Ring Indicator lt ISDN modem 1 109 DCD Data Carrier Detect lt ISDN modem 7 4 105 52 RTS Request to Send ISDN modem U housing shield The interface lines have the following meanings Data Terminal Ready This control line indicates that the computer and M icroLink ISDN TLV 34 are ready for operation This control line on the M icroLink ISDN TLV 34 is determined by the AT amp D command refer to page 36 B RTS Request To Send This control line indicates that your computer is ready to send data This interface line is used for data flow control hardware handshake Data Set Ready DSR This control line indicates that your M icroLink ISDN TLV 34 is ready for operation This signal line is usually always active ON but is controlled by the commands AT D and AT amp S refer to pages 36 and 5
3. When RTS goes ON the M icroLink ISDN TLV 34 resumes data transmission to your computer The commands AT Q1 and AT Q4 select software handshake using the characters XON lt DC1 gt Ctrl Q gt and XOFF DC3 Ctrl lt gt f your MicroLink ISDN TLV 34 receives an XOFF character from your computer it temporarily stops sending data to your computer When your MicroLink ISDN TLV 34 receives an character from your computer it resumes data transmission to your computer 9 NOTE9 The command described on page 55 determines whether the XON and XOFF characters are also passed to the remote system or not by default they are not transmitted When unidirectional handshaking methods are enabled the MicroLinkISDN TLV 34 ignores handshaking signals originating from the computer R Display register contents AT RO Display two registers per line AT R1 Display one register per line continuous display 50 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation The AT R command lists the current values of the M icroLink ISDN TLV 34 S registers S Read w rite S register values ATSn x Setregister n to value x 5 Read the value of register n ATSn Make register n the default register AT Readthe value of the default register Setthe default register to value x These commands let you read and change S register values To change the value of a register type ATSnzx and press
4. B E L Q W 521 531 552 5153 5173 S179 C HE M Q X 22 36 93 5162 5174 amp C 6 amp N 905 X 23 37 95 5167 5175 amp D amp G W amp S amp Y 527 540 596 S168 5176 D H P T 50 528 546 5151 171 S17 D Q V S14 S30 551 S152 172 5178 9 ATTENTION 9 Registers whose current value cannot be stored with the AT amp W command are saved with their default values Therefore the AT amp W command may overw rite those register values stored with AT W described next W Save extended configuration profile AT Wn Save extended configuration profile n n 0 1 In addition to the parameters and registers stored with AT amp W this command also saves the values of the registers S2 3 4 S5 and S12 in the non volatile memory of the ISDN terminal adapter X Reaction to busy line CONNECT message ATXO Busy line reported with NO CARRIER 54 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation ATX1 Busy line reported with NO CARRIER ATX2 Busy line reported with NO CARRIER ATX3 Busy line reported with BUSY ATX4 Busy line reported with BUSY The ATX command selects whether a busy ISDN line is reported with NO CARRIER or with BUSY by the M icroLink ISDN TLV 34 Note that when the command is in effect only the CONNECT verbose form or 1 abbreviated form result code is reported for successful data connections regardless of the bit rate and type of the connection 9 The commands ATX2 and AT
5. Channel not accepted 102 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Answers to Frequently Asked Questions E Answers to Frequently Asked Questions General Issues How send commands to the M icroLink ISDN TLV 34 To use AT commands to communicate with a MicroLink ISDN TLV 34 you need a suitable communications or terminal program such as Telix After starting Telix you can enter AT commands in the terminal screen The commands you type are sent to the M icroLink ISDN TLV 34 via your PC s serial interface See your Telix documentation for detailed information on how to use this program What must do to configure my MicroLink ISDN TLV 34 for the correct D channel protocol Euro ISDN DSS1 1TR6 NI 10r AT amp T 5ESS European version All European ELSA M icroLink ISDN TLV 34 ISDN terminal adapters are preconfigured for Euro ISDN DSS1 You only need to enter the desired your ISDN line s MSN M ultiple Subscriber Number up to eight digits With the SN command you can assign up to two different M SNs named 0 and 1 to your M icroLink ISDN TLV 34 If for example you want to assign the number 12345678 type AT IM SN0 12345678 and press cR To display the MSNs currently assigned to the M icroLink ISDN TL V 34 type AT IMSN and press cR To operate your M icroLink ISDN TLV 34 on a 1TR6 ISDN line an early German ISDN standard use the command AT IDP 1TR6 to set the MicroLink ISDN TLV 3
6. If the ATB17 ATB18 ATB21 ATB22 ATB25 or ATB26 command is in effect your M icroLink ISDN TLV 34 accepts all calls with the bearer capabilities telephone call or a b services If the 24 25 or ATB26 command is in effect your M icroLink ISDN TL V 34 tries to a digital connection first If this connection is not possible your M icroLink ISDN TLV 34 tries to establish an analog connection analog analog The ATB command works independently of the ATDI and ATDN commands This means you can use the ATDIn command for example to dial an ISDN telephone number specified by n when the ATB21 command is in effect ISDN line bit rate in V 110 mode 300 300 bps 1200 1200 bps 2400 2400 bps 4800 4800 bps 7200 7200 bps 9600 9600 bps 12000 modem operation only modem operation only AT B 14400 AT B 16800 19200 21600 24000 26400 28800 31200 33600 38400 12 000 bps 14 400 bps 16 800 bps 19 200 bps 21 600 bps 24 000 bps 26 400 bps 28 800 bps 31 200 bps 33 600 bps 38 400 bps modem operation only modem operation only modem operation only modem operation only modem operation only modem operation only modem operation only modem operation only modem operation only ISDN operation only Se SR MicroLink ISDN TLV 34 Manual 1997
7. cR where n is the number of the register and x is the new value For example ATS0 2 cn changes the value of Register 50 the auto answer register to 2 To read the value of a register type ATSn and press cR where n is the number of the register whose value you want to read For example ATS4 cn displays the value of Register S4 on your computer screen If you read or change the value of a certain register frequently you can make that register the default register and then use fewer keystrokes to read or change its value To specify a default register type ATSn and press CR where n is the number of the register you want as the default register For example ATS8 cR makes Register 8 the default register read the value of a default register type AT and press cR In our previous example typing AT CR displays the value of Register S8 on your computer screen To change the value of a default register type AT x and press cR where x is the new value for the default register In our previous example typing AT 5 cR changes the value of Register 58 to 5 9 NOTE If you omit n when typing this command Register 50 is assumed If you Specify an invalid register the MicroLink ISDN TLV 34 returns either OK or ERROR depending on the value of Register 96 and the register referenced prior to this command remains the default register MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 51 Opera
8. 1 guard tone 550 Hz AT amp G1 AT amp G5 128 2 guard tone 1800 Hz AT amp G2 AT amp G6 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 61 Operation S 27 Bit mapped options Register 27 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 27 and any equivalent AT commands Default settings are shown in bold reserved 0 ITU T V 21 V 22bis 1 Bell 103 212A 128 1 half duplex S 28 Bit rate adaptation Register 28 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 28 and any equivalent AT commands Default settings are shown in bold 209 0 V 110 bit rate adaptation enabled AT LO Partial adaptation in modem mode 1 V 110 bit rate adaptation enabled AT L1 V 100 bit rate adaptation in modem mode 2 V 110 bit rate adaptation disabled connection will be broken AT L2 No fallback 3 V 110 bit rate adaptation enabled AT96L3 V 100 bit rate adaptation 0 disable automatic retrain analog AT96 EO 1 enable automatic retrain analog 1 in ISDN mode 2 in modem mode 62 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation S 29 Bit mapped options Register 29 is a bit mapped register whose contents can be stored in nonvolatile memory using the
9. There are two methods for resetting the M icroLink ISDN TLV 34 Ahardware method using the Reset button on the back of your M icroLink ISDN TLV 34 software method using the ATZ or the AT amp F commands Both methods are described in the following sections Hardware reset method Software reset method The back panel of the MicroLink ISDN TLV 34 has a Reset button to reinitialize the ISDN modem Facing the back panel you can find the Reset button between the V 24 V 28 and ISDN S connectors see Back Panel Connectors diagram number page 14 When the M icroLink ISDN TLV 34 is configured for dumb mode refer to page 38 using the Reset button returns it to normal operation The Reset button is recessed to prevent accidental resets If you want to press the Reset button do so using a narrow object such as a pencil If you press the Reset button the following results Any data connection with a remote modem is ended B TheMicroLink ISDN TLV 34 reinitializes itself and performs a self test All serial ports are cleared of data The last executed command 15 lost from memory invalidating the command until your M icroLink ISDN TLV 34 executes command configuration profile is loaded either the default values or the user values as defined with the commands AT amp W or AT W B TheMicroLink ISDN TLV 34 enters Command M ode Keeping the reset button pressed for a longer time restores
10. just like a conventional analog modem The following configuration settings are important for the operation with a M icroLink ISDN TL V 34 Select the COM port to which your M icroLink ISDN TLV 34 is connected The serial port rate can be set to 115 200 bps If you get frequent CRC errors at this speed reduce it to 57 600 bps or install an optimized Windows communications driver such as RHSICOM M DRV in your W IN INI file Set the data flow control to CTS RTS hardware handshake The dial prefixes should not contain any analog modem dialing parameters like P for pulse dialing T for tone frequency dialing or W wait for dialtone In Telix for Windows you may for example copy the connect device ELSA M icroLink 28800TL from the list of devices which can be installed in the connect device manager Connect Devices in the Configuration menu and rename it for example to ELSA MicroLink ISDN TLpro In this new device you can then make the configuration changes for M icroLink ISDN TLV 34 as described above If you have Telix for Windows v1 10 or later your MicroLink ISDN TLV 34 should be detected and installed automatically if you scan the ports Btx T Online I want to call the German T Online online service with 64 000 bps What must do Include the amp F N9 command in the initialization string of your Btx or KIT decoder program This setting lets you establish error corrected connections to German Btx T
11. 13 Sl ety pU pb pain tp Hh m et oo Dp MM 13 System equiFe lel iles act sect ee na 13 Installing the Terminal A t du er t eene rna Deut ettet 14 installation nder WiINdOW S9 Bec Guo ora aii i P a Dre ec enun 18 Status Display and Fault Diagnosis 19 Me M 21 j MM D ES 21 Communicating with the Terminal Adapter 21 Operating M O65 nitatem e canard 21 CohlangduM Ue ssa ee dundee aate ne ut ette delia cta nd 22 online Mode vats acta on d bU BU nd tI 22 Swibchitg BetwegbMQUBS tiiv dria eaae DN nn nn RIA EO 22 Ent ring oasis aem va Eo rc aa ru fug CU ud 23 Resetting the Terminal Adapteri ane etat ono a ann 25 channel Bundlind ut s 26 Pape AC NT NN 27 Fak COMMANG SOUS wcisnssasnesassatsasescarsassnses 27 Data Flow in Fax einen a rhv uA 21 Adaptive ANS om cann talo 21 eroi t bt a REDE RD REED SERENA 29 Dialing and Answering Calls a a Pr eve tee nud 29 OLAKO SI E Ur MR mE m Dt 29 Dialing a Stored Telephone Number eene 30 ASSOCIES SEM RS nn de nee 30 AT Comniaras mD tellus didis f ise sa fast 32 abii 57 R SUM COR ceto umano fnnt pandit Quadiu buta pd n OC UE 84
12. 2 Class 2 0 TIA EIA 592 lets you use any standard fax software such as WinFax or Bitfax A brief description of the TR 29 2 Class 2 and Class 2 0 fax commands supported by the ELSA M icroLink modems 15 available in the MODEMS forum file area of the ELSA ONLINE Support BBS see the telephone number on page 57 Class 1 The MicroLink ISDN TLV 34 supports the fax command set Class 1 TIA EIA 578 This support is required for E mail functions using M icrosoft Windows for Workgroups and the file transfer function of WinFax PRO 4 0 For a brief description of the Class1 fax commands supported by the icroLink ISDN TLV 34 access the MODEMS forum file area of the ELSA ONLINE Support BBS see the telephone number on page 57 5 7 2 Data Flow in Fax Operation By default your MicroLink ISDN TLV 34 can use both hardware and software handshaking Simultaneously during fax Class 1 and Class 2 mode As soon as a certain handshake method is selected with AT Q only that method 15 used 5 7 3 Adaptive Answer This feature automatically differentiates between incoming fax and data calls The fax software in use must also support adaptive answer Set up your fax software to start when the M icroLink ISDN TLV 34 receives FDM or DATA If the fax software sends an initialization string set Register S 14 bit 6 to 1 refer to page 60 This prevents the M icroLink ISDN TLV 34 from hanging up The following fax commands support adaptive answer
13. CE approved ISDN devices may be connected to the Euro ISDN in all EU countries except for Germany where an additional national approval certificate is required M icroLink ISDN TLV 34 has been approved by the BZT according to the new European procedure and may therefore be connected to the Euro ISDN in all countries of the EU M icroLink ISDN TLV 34 therefore complies with NET3 ISDN Basic Rate Access Electromagnetic compatibility standards W Safety standards This equipment has been tested and found to comply with limits for a Class B computing device according to the specifications in FCC Federal Communications Commission rules Part 15 This equipment like other electronic equipment generates and uses radio frequency energy If not installed and used according to the instructions in this manual this equipment may cause interference to radio and television reception If interference with radio or television reception is apparent turn the modem equipment off If the interference problems stop then the equipment is probably the cause One or more of the following may solve the problem m Adjust the position of the radio or TV antenna m Move the device away from the radio or TV m Plug the power adapter of the device into a different outlet than the radio or TV uses Consult the dealer or an experienced radio TV technician for help If this device is malfunctioning it may also be causing harm to the ISDN netwo
14. Class 2 0 Modem initialization AT FCLASS 2 0 Enter Class 2 0 fax mode AT FAA 1 Set adaptive answer mode fax data auto mode AT FCR 1 Enable fax receiving AT FIS 5 Set V 17 followed by other settings as necessary MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 27 Operation Class 2 Class 1 9 NOTES 28 Result codes for incoming fax call RING Incoming call FCO Fax connect result code Result codes for incoming data call RING Incoming call Detection of data calling tone 1300 Hz CONNECT Data connect result code Modem initialization AT FCLASS 2 Enter Class 2 fax mode AT FAA 1 Set adaptive answer mode fax data auto mode AT FCR 1 Enable fax receiving AT FDIS 5 Set V 17 followed by other settings if necessary Result codes for incoming fax call RING Incoming call FAX Detection of fax calling tone 1100 Hz FCON Fax connect result code Result codes for incoming data call RING Incoming call DATA Detection of data calling tone 1300 Hz CONNECT Data connect result code Modem initialization AT FCLASS 1 Enter Class 1 fax mode AT FAE 1 Set adaptive answer mode fax data auto mode Other Settings if necessary Result codes for incoming fax call RING Incoming call FAX Detection of fax calling tone 1100 Hz CONNECT Fax connect result code Result codes for incoming data call RING Incoming call DATA Detection of data calling tone 1300 Hz CONNECT Data connect result code For fax Cl
15. Directory No n 1 2 AT IDNn Display directory no n 1 2 With the relevant US protocol defined the directory number can be set or displayed The first B channel required n 1 the second B channel n 2 The directory number can be up to 12 digits 0 9 long Changes are stored in the non volatile memory and are maintained until changed again IDP setidisplay D channel protocol With European firmware AT IDP DSS1 Select DSS1 protocol Euro ISDN default in Europe AT IDP 1TR6 Select ITR6 protocol German ISDN With USA firmware AT IDP NI 1 Select NI 1 protocol National ISDN 1 USA default AT IDP AT amp T Select AT amp T 5ESS protocol General query commands AT IDP Display selected protocol AT IDP Display implemented protocols The AT IDP command selects the D channel protocol which handles the control signals between the local station and the nearest ISDN exchange Executing this command saves the D channel protocol setting in nonvolatile memory As result this setting is preserved when the M icroLink ISDN TLV 34 is turned off reset or reinitialized This setting is automatically recalled the next time the M icroLink ISDN TLV 34 is turned on In addition the AT amp F factory reset command does not reset the D channel protocol to the factory default setting MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 41 Operation 9 NOTE Do not execute this command during an existing connection or when you recei
16. MicroLink ISDN TLV 34 Installation Select the channel protocol See page 16 US protocols enter DN and SPID see page 17 When connecting to an AC power outlet use only the external power supply provided with the MicroLink ISDN TLV 34 Do not use a power supply designed for a different device an ISDN Power Power P p V24JRS 232C nie SIT or Sy RE Interface PC MicroLink ISDN TL V 34 The following procedure explains how to connect the M icroLink ISDN TLV 34 to an AC power outlet This connection is made using the supplied external power supply AC adapter 1 Verify that the voltage of the power line matches the voltage of the Supplied AC adapter 2 Insert the supplied AC adapter cord into the power connector labeled AC 9V on the MicroLink ISDN TLV 34 back panel see the Back Panel Connectors diagram number 3 3 Insert the wall transformer on the other end of the power cord into a grounded AC outlet The M icroLink ISDN TLV 34 s serial port connection is provided by an RS 232 25 pin D type connector This connector is located on the back panel of the icroLink ISDN TLV 34 To make this connection 1 If your computer is turned on turn it off 2 Insert the 25 pin end of the supplied RS 232 V 24 serial cable into the serial connector on your Data Terminal Equipment If your computer or terminal has a 9 pin serial connector use the supplied 9 to 2
17. S bus activated 3 0 no assigned BEEN NNI E 1 D channel level 2 established Prseved ee SPID initialization not completed US protocol only Us SPID initialization completed US protocol only S 160 Information about last call Register 160 is a read only register that contains information about the last call that came across the ISDN S interface 74 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation no incoming call yet call is currently being reported call was accepted call was withdrawn or answered by another device on the S bus call had wrong Capability 0551 or wrong Service Indicator 1TR6 call had wrong M SN EAZ or DN DTR line S1 was OFF call was rejected ISDN adapter was already connected or establishing another connection BUSY number check not OK see AT HCLDn command number check not OK no number was given S 162 Selecting a preferred B channel Register 162 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 162 Default settings are shown in bold 0 B channel can be used 1 1 channel has priority can be switched to B2 by the exchange if B1 busy 2 B2 channel has priority can be switched to B1 by the exchange if B2 busy S 163 S 164 Service Indicator Additional Service Indicator Registers 163 and 164 are read
18. TLV 34 s current operating mode The following tables show the action taken when the parameter n equals a particular value and the M icroLink ISDN TLV 34 is in a particular operating mode In Command M ode nm This Action Occurs No effect No effect An existing connection ends and digits stored with ATDn are cleared Same as 2 but M icroLink ISDN TL V 34 reinitializes see AT amp Y on page 55 While a connection is being established the following apply n This Action Occurs No effect Connection establishment aborts Same as 1 Same as 1 but M icroLink ISDN TL V 34 reinitializes see AT amp Y on page 55 During an existing connection n This Action Occurs No effect M icroLink ISDN TLV 34 enters the Command M ode Connection ends and M icroLink ISDN TLV 34 enters the Command M ode Same as 2 but M icroLink ISDN TL V 34 reinitializes see AT amp Y on page 55 If the AT amp D2 or AT amp D3 command is in effect an ON to OFF DTR transition prevents the M icroLink ISDN TLV 34 from accepting calls until DTR goes ON While DTR is OFF the remote side receives a remote station out of order message 0 pSR CTS control AT DO DSR and CTS always ON AT D1 DSR shows B channel switched through CTS always ON AT D2 DSR always ON CTS follows DCD AT D3 DSR shows B channel switched through CTS follows DCD This command affects the Data Set Ready DSR and Clear To Send CTS interface line
19. Utne eer 707 1 1 do not send result code to network if device busy or not ready 1 1 No ALERT signaling for incoming calls 2 0 0 V 120 LLC Low Layer Capability not signaled in D channel V 110 BC Bearer Capability and LLC Low Layer Capability not signaled in D channel 4 1 V 120 LLC Low Layer Capability signaled in D channel V 110 BC Bearer Capability and LLC Low Layer Capability signaled in D channel BMS EE 4 0 0 Incoming calls on B channel 1 will be accepted 5 0 0 Incoming calls on B channel 2 will be accepted 5 amine me Pet 6 7 0 jreewed o O MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 71 Operation Using Low Layer Capability for V 120 enables you to access all CompuServe V 120 nodes Not enabling LLC can lead to problems with connections to some CompuServe V 120 nodes When using the Bearer Capability for V 110 the bit rates 1200 2400 4800 9600 and 19 200 bps can be signaled but not 38 400 bps 6152 indication delay Range 0 to 50 1 10 seconds Default value 0 Storage in nonvolatile memory AT amp W or AT W Register 152 specifies a delay between when an incoming call is made to your system and when that call is reported to your computer This delay lets you give priority to an ISDN device other than your M icroLink ISDN TLV 34 By specifying a delay you avoid competition between ISDN devices that share the same communication line and have the same Bearer Capability S
20. bps CONNECT 14400 M 5 duplex with MNP class 5 CONNECT 16800 M N P5 CONNECT 19200 M N P5 CONNECT 21600 M NP5 CONNECT 24000 M NP5 CONNECT 26400 M N P5 CONNECT 28800 M N P5 CONNECT 31200 M NP5 CONNECT 33600 M N P5 CONNECT 1200 LAPM CONNECT 2400 LAPM CONNECT 4800 LAPM CONNECT 7200 LAPM CONNECT 9600 LA PM CONNECT 12000 LAPM Transfer rate 300 33 600 bps CONNECT 14000 LAPM duplex with V 42 CONNECT 16800 LA PM CONNECT 19200 LA PM CONNECT 21600 LAPM CONNECT 24000 LAPM CONNECT 26400 LA PM CONNECT 28800 LA PM CONNECT 31200 LAPM CONNECT 33600 LA PM MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 89 Operation CONNECT 1200 LAPM V42BIS CONNECT 2400 LAPM V42BIS CONNECT 4800 LAPM V42BIS CONNECT 7200 LAPM V42BIS CONNECT 9600 LAPM V42BIS CONNECT 12000 LAPM V42BIS CONNECT 14400 LAPM V42BIS CONNECT 16800 LAPM V42BIS CONNECT 19200 LAPM V42BIS CONNECT 21600 LAPM V42BIS CONNECT 24000 LAPM V42BIS CONNECT 26400 LAPM V42BIS CONNECT 28800 LAPM V42BIS CONNECT 31200 LAPM V42BIS CONNECT 33600 LAPM V42BIS CONNECT CONNECT M NP CONNECT M NP5 CONNECT LAPM CONNECT LAPM V42BIS 90 Type of Connection Transfer rate 300 33 600 bps duplex with V 42bis Any transfer rate without MNP or V 42 with M NP class 1 4 with M NP class 5 with V 42 with V 42bis The command AT M 1 has no effect on the abbreviated result codes They are the same as with AT M 0 MicroLink ISDN TLV 34 Manual 1997 EL
21. chantielz susci nah eed po nt PR OE 113 B faeit retos ibi posee 26 B channel current last ss 13 Backspace character qo suiit tiet us 59 Basic Rate Interface sees 113 O HA 113 BBS vaste autista asado qoc odiis quias 109 33 62 Bit Talepi epo cd ibd 24 33 37 43 45 65 69 Bit rat adaptation rores 9 44 62 Bit rat e eEBCEOTL o ic De tn ete doces 9 Bit mapped register ee tete 5 Saut ee ne 76 4T 107 83 BUSY ta man 54 Byte order for voice data 80 82 Call dec DI esso ete 32 57 Call failure reason codes 68 Call indication deldy i cec 11 Calling ER 38 64 CAD assist dox iste ru bct e prebere 113 Carriage Return character 58 Cal TIBI nuit pb ba UR ded 59 120 Carrier IOSS disc 59 COTES rene ES 1132115 11 Channel bundling 26 45 64 77 18 79 Charge Uhlls zl dio tectis ca 80 Checksum display asc adi boa Scb 39 Clear down sequence 63 Closed user grOuUpS veteona t crtser vete Leto 39 Command echo aeos e 36 Command entry srr 103 COMMANDE Re 61 Communications software 113 Compressed files transferring 105 COMPUSCING ias Suri it rats dea CLA dtu 110 CompuServe forum eene 112 Confi
22. disturbances with some foreign modems and should be disabled in these cases The guard tone is an additional signal sent over the telephone line in V 22bis mode ATH ATH places your M icroLink ISDN TLV 34 on hook If you switch from Online M ode to Command M ode using Escape Characters or an ON to OFF DTR transition with the AT amp D1 command in effect you can use ATH to hang up and end the current connection H Dumb mode AT HO Normal operation AT H1 Dumb mode The default setting disables dumb mode AT H1 enables dumb mode In this mode 38 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation M All commands except ATD are ignored You use to dial a number so that a connection can be made Result codes are suppressed Because all commands except ATD are ignored you cannot use the ATA command to answer an incoming call Instead set Register 50 to a value other than zero Dumb mode also prevents you from using ATH to hang up a call the call must be terminated by the remote modem Handshaking how ever remains active in dumb mode To keep the dumb mode setting valid after turning the M icroLink ISDN TLV 34 off and on or resetting it add the amp W command to the dumb mode command line for example AT H1 amp W to exit dumb mode hold down the Reset button on the M icroLink ISDN TLV 34 back panel Display product information ATIO Display model number in nnn format ATI1 Displa
23. file is to be sent using the XModem protocol This data is to be found on the CD ROM or diskette enclosed with your M icroLink ISDN TLV 34 The latest firmware versions can be downloaded using ELSA s online service Mail box ELSA ONLINE GO ELSA in CompuServe Internet http www elsa de http www elsa com If your device is not equipped with Flash ROM then an error message will be displayed The data transfer rate for the upload is the speed that was last used up to a maximum of 57 600bps V Form of result codes ATVO Send numeric result codes ATV1 Send word result codes The ATV command lets you choose whether result codes sent by the M icroLink ISDN TLV 34 to your computer are displayed as digits or words The result codes in short form and verbose form are listed in section 5 12 page 84 V Display firmware version AT V The AT V command displays the firmware version of the M icroLink ISDN TLV 34 on your computer screen amp V Display configuration profiles AT amp V The AT amp V command displays on your computer screen the current configuration and the two stored configuration profiles 0 and 1 stored with the AT amp W and AT W commands described on page 54 V CONNECT messages for error corrected connections No modified CONNECT result codes AT V1 Identification of error corrected connections AT V2 Identification of error corrected connections and error correction method MicroLi
24. has been assigned to the terminal adapter TEI Terminal adapters TA are used to connect non ISDN devices to the ISDN An a b terminal adapter for example can be used to connect devices designed for analog telephone networks such as analog telephones class 2 and 3 fax devices modems etc MicroLink ISDN TL V 34 is an external RS 232 V 24 terminal adapter allowing the access of the ISDN through the serial RS 232 V 24 interface of a computer To transmit data files from one computer to another a range of transmission protocols exists in order to provide a trouble free file transfer Over the years protocols of different efficiency and convenience have been developed In principle they all work as follows Data are usually transmitted as data blocks and are checked for errors and incompleteness on the receiving side If an error has been detected the defective block is requested once more and transmitted again The communications software Telix supplied with every ELSA M icroLink product that uses the MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH U interface V 110 V 120 V 42bis V Fast Class X75 Appendix Glossary AT command set supports many common transmission protocols such as Xmodem Xmodem 1k Ymodem and Zmodem This is the link between the public exchange and your local NT uses 2 wire V 110 also referred to as 1 463 is an ITU T standard for the adaptation of asynchronous or synchronous
25. in front of it and CR afterward This command is convenient for example if the last number called was busy Typing A lets you automatically redial the call without retyping the command line Resetting your MicroLink ISDN TLV 34 or turning it off and on removes the last executed command from memory invalidating the A command Independent line speed The bit rate your computer uses to communicate with the 24 M icroLink ISDN TLV 34 is called the Data Terminal Equipment DTE rate or serial port bit rate The speed your M icroLink ISDN TLV 34 uses to transmit data is called the Data Communications Equipment DCE rate or DCE line Speed By default the DCE rate is determined by the DTE rate If for example your computer sends an command line at 19 200 bps to your M icroLink ISDN TLV 34 the M icroLink ISDN TLV 34 will use a full duplex DCE rate of 19 200 bps The AT amp G1 and commands can be used to select a DCE rate for your icroLink ISDN TLV 34 independent of your computer s serial port speed For example you can set the DCE rate to a fixed 38 400 bps while the DTE rate remains at 19 200 bps If you want to return your M icroLink ISDN TLV 34 to using the DTE rate issue AT amp GO command ISDN connections with a V 120 or X 75 protocol will always use 64 000 bps or 56 000 bps see S AT command page 52 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 5 5 Resetting the Terminal Adapter
26. line bit rate is set according to the bit rate used on the serial port In this case set the serial port rate of your communications program to the speed you wish to use on the ISDN side B f the MicroLink ISDN TLV 34 is set to AT G1 you can set a fixed ISDN line bit rate independently of the serial port rate using the command AT Please note that the line bit rate set by the caller must not be greater than the line bit rate set on the called side For example assume you want to call the CompuServe ISDN node in M unich or ISDN Datex P nodes which can only be dialed via V 110 Also assume that you are using a fixed bit rate of 9600 bps To work with these conditions your M icroLink ISDN TLV 34 must be configured with the commands AT N0 amp G1 B 9600 If you try to call with a higher speed no connection can be established and you receive a NO CARRIER result code see error codes 051 128 in Registers S154 and S155 on page 72 In this case the V 110 transfer frame of the caller does not match the transfer frame of the remote station Can call a remote station using a different D channel protocol than my own ISDN line DSS1 ITR6 NI 10r AT amp T 5ESS The different D channel protocols are not relevant since they only affect the connection between your local system and the nearest public ISDN exchange Therefore a connection can be established betw een two stations using different D channel protocols How can disable the
27. online data compression to transfer files which have already been compressed e g ZIP or ARC files The data compression is controlled by the command The default setting AT C3 selects V 42bis data compression Since no increase in performance is realized by compressing already compressed files during the transfer the V 42bis compression protocol is able to recognize compressed files and disable the compression during the file transfer Thus it is not necessary to disable the data compression manually What can test with the program M ODEMTST Your ELSA M icroLink ISDN TLV 34 ISDN terminal adapter is shipped with a diagnostic program named M ODEM TST EXE You will always find the latest version in the ELSA ONLINE Support BBS refer to page 91 and in the ELSA forum in CompuServe for download MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 105 Appendix Answers to Frequently Asked Questions TST offers the following functions Testthe serial ports for example to determine the IRQ and the UART chip used Display the configuration of the M icroLink ISDN TLV 34 Display the parameter settings of the M icroLink ISDN TLV 34 Establish a test connection with the ELSA ONLINE BBS frequently get CRC errors when uploading downloading files to from a BBS sometimes even the connection is lost What can be the reason You may be using an improper or missing handshake method To take advantage of da
28. only registers that show the Service Indicator or the Additional Service Indicator of the last connection or the last incoming call if no connection could be established Encoding is realized with 1TR6 code 169 Bit rate adaptation to 56 000 bps automatic switching to 56 000 bps with V 120 X 75 HDLC other Data transfer at 64 000 bps S 165 0551 Euro ISDN error codes Register 5165 displays detailed error codes which can be used for localizing the source of a problem e g no connection established or connection broken This is a read only register A list of these error codes can be found in the appendix Error Codes MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 75 Operation S 167 Maximum number of charge units for cost monitoring DSS1 1TR6 Range 0 to 255 x 10 units Default value 0 Storage in nonvolatile memory AT amp W or AT W Register S167 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1TR6 protocols This register sets the maximum allowed number of ISDN charge units that may be used within the number of days specified by Register 168 If the number of charge units is exceeded no more connections can be made in this time period If the time limit is exceeded during an existing connection the connection ends Turning the M icroLink ISDN TLV 34 off and on resets the number of remaining charge units for the Current period to the value stored in Register 167 The default setting 0 disab
29. settings are shown in bold Bit 0 m o1 f 0 noe S O 2 0 reseved VV 60 MicroLinkISDN TLV 34 Manual 1997 ELSA GmbH Operation 0 ignore DTR status change 1 change to Command M ode after an ON to OFF DTR transition 2 disconnect after an ON to OFF DTR transition 3 disconnect and reinitialization after an ON to OFF transition 0 DCD signal is always active ON 1 DCD signal indicates existing connection S 22 Establishing a connection Register 22 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 22 and any equivalent AT commands Default settings are shown in bold 0 low speaker volume low speaker volume 2 medium speaker volume 3 maximum speaker volume 0 speaker always off 1 speaker on when dialing and waiting for answer tone 2 speaker always on 3 speaker on when waiting for answer tone Busy line NO CARRIER only CONNECT or 1 Busy line NO CARRIER Busy line NO CARRIER Busy line BUSY Prem line gt BUSY Ix EE S 23 Bit mapped options Register 523 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 23 and any equivalent AT commands Default settings are shown in bold reserved 0 guard tone off amp 0 AT amp G4
30. size extended by 2 bytes S 172 additional v 120 settings Register 172 can be used to specify additional details for the V 120 protocol The contents of Register 172 can be stored in the nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 172 Default settings are shown in bold Bit Dec Meaning 0 data block size 127 Bytes 1 data block size 259 Bytes 0 1 6 reserved MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH HH Operation Bit Meaning O 7 0 64 000 bps default for European version 50 1 56 000 bps default for US version AT S1 S 173 Additional V 110 settings Register 173 can be used to specify additional details for the V 110 protocol The contents of Register 173 can be stored in the nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 173 Default settings are shown in bold 0 parity asynchronous 1 odd parity asynchronous additional bit 2 even parity asynchronous additional bit 3 1 parity asynchronous additional bit 3 0 RTS DCD DSR normal operation asynchronous 1 V 110 half duplex operation asynchronous direct mode AT N1 only 0 bit rate tolerance 12 5 asynchronous 16 1 bit rate tolerance 25 asynchronous 32 1 2 stop bits asynchronous 6 7 0 0 8 bits character asy
31. that appears after your modem sends you a result code The default value is 13 You may want to change the default value if you are using nonstandard equipment S4 Line Feed character Range 0 to 127 decimal Default value 10 Line Feed 58 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation Storage in nonvolatile memory AT W Register 4 specifies the ASCII value of the line feed character The default value is 10 although you can change it to another ASCII value between 0 and 127 5 Backspace character Range 0 to 32 127 decimal Default value 8 Backspace Storage in nonvolatile memory AT W Register 5 specifies the ASCII value of the backspace character This character is the character created by pressing the BS key and the character echoed to move the cursor to the left S 7 Waiting for carrier Modem operation only Range 10 to 100 seconds 10 to 59 in the UK Default value 90 seconds 59 seconds in the UK Storage in nonvolatile memory AT W Register S7 specifies the maximum number of seconds your MicroLink ISDN TLV 34 waits for a remote modem s carrier signal before hanging up S 10 Delay for hang up after carrier loss M odem operation only Range 1 to 255 1 10 seconds Default value 3 0 3 seconds Storage in nonvolatile memory AT W Register S10 specifies the time between when the remote carrier signal is lost and when your M icroLink ISDN TLV 34 hangs up MicroLink ISDN TLV 34 Manual 199
32. the M icroLink ISDN TLV 34 s internal speaker 0 keeps the speaker off at all times The default setting ATM 1 keeps the speaker on until the remote carrier is detected ATM 2 keeps the speaker on at all times ATM3is the same as ATM 1 44 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation Verbose CONNECT result codes Verbose CONNECT result codes based default AT M1 Verbose CONNECT result codes independent of AT V The AT M command determines how much information appears in CONNECT result codes The default setting AT M 0 relies on the command to determine the information shown in CONNECT result codes refer to page 53 The bit rate at which the connection was established is always displayed in the result code AT M 1 displays one of the following result codes when an error correction connection has been made with a modem CONNECT MNP for an MNP 1 4 data connection m CONNECT MNP 5foran MNP 5 data connection m CONNECT LAPM fora V 42 data connection m CONNECT LAPM V42BIS for a V 42bis data connection The bit rate is not displayed in these CONNECT result codes 9 NOTE 0 If the ATXO is in effect the AT M command is ignored V 8 bit rate adaptation Modem operation only AT MO0 V 8 bit rate adaptation on AT M1 V 8 bit rate adaptation off The AT M command controls the bit rate adaptation during the establishment of a connection The default setting AT M 0
33. using this command WO W2 N3 W4 N5 N6 N7 N8 N9 N10 X 75 T Online LLLLLLLLLLLAUI X 75 T Online VT 100 X75 j lese V 120 j jet jm V 110 normal m m m jm V 110 direct ae 70 a HDLC transparent jm 1 Used for outgoing calls European version 2 Used for outgoing calls US version The command configures the M icroLink ISDN TLV 34 for V 110 normal mode operation The M icroLink ISDN TLV 34 establishes physical connections without error correction regardless of the serial port bit rate The AT 1 command configures the M icroLink ISDN TLV 34 for V 110 direct mode In this mode M No data buffering occurs in physical connections However data flow control will be performed if it is enabled at both the local and remote sides serial port bit rate is always the same as the ISDN line bit rate and your communications software must adapt to this rate After returning to the Command M ode either by hanging up or using the Escape Characters the bit rate set by Register 93 refer to page 70 is used again You can use the command refer to page 43 to determine whether the ISDN line bit rate should also be stored in Register 593 With the M icroLink ISDN TLV 34 tries to establish an error corrected X 75 connection If the remote side does not supp
34. 0 bit rate adaptation AT L1 V 100 bit rate adaptation AT L2 No bitrate adaptation connection is terminated AT L2 No fallback AT L3 V 110 bit rate adaptation AT L3 V 100 bit rate adaptation 1 in ISDN operation 2 in modem operation This command can be used to determine the bit rate adaptation while connecting The adapted bit rate is always equal or lower than the originally set ISDN line bit rate Thus no connection can be made if the calling system has a higher ISDN line bit rate than the answering System With the standard setting AT L1 and with AT L3 the M icroLink ISDN TLV 34 operates under the ITU T recommended V 110 ISDN and V 100 analog standards Connected devices operating to these standards automatically adapt to the optimal line bit rate available If contact is required with a modem which does not operate with V 100 then the command AT9 6LO should be used to enable a partial line bit rate adaptation Thus the fallback is restricted to one transmission protocol e g v 32bis from 14 400 back to 12 000 9600 7200 and 4800 bps connection is still not possible then configure the modem to AT L2 m in which case the transmission speed as defined under see page 33 will be used M Speaker control ATMO Speaker always off ATM1 Speaker on while waiting for answer tone ATM2 Speaker always on ATM3 Speaker on while waiting for answer tone The ATM command controls the status of
35. 1212 and press cR The M icroLink ISDN TLV 34 dials stored numbers with the command ATD see page 3434 Because the numbers are stored in nonvolatile memory they are preserved when the M icroLink ISDN TLV 34 is reset or turned off they will be automatically recalled the next time the M icroLink ISDN TL V 34 is turned on To delete a number from a memory location use the AT Pm command For example typing AT P2 and pressing CR deletes the number stored in position 2 The AT P command corresponds to the AT amp Z command refer to page 56 The numbers stored with can therefore be overwritten by the AT amp Z command The number stored in memory position 0 is also used for automatic dialing with DTR see commands AT D AT amp M The stored numbers can be displayed on the screen with the AT F command Commands typed after an AT P command will not be executed Q Enable disable result codes Enable result codes ATQ1 Disable result codes ATQ2 Disable result codes in answer mode The ATQ command determines whether your M icroLink ISDN TLV 34 sends result codes that appear on your computer screen The default setting ATQO allows your M icroLink ISDN TLV 34 to send result codes to your computer ATQ1 suppresses result codes AT amp Q2 enables result codes when your M icroLink ISDN TLV 34 answers calls but suppresses them when your M icroLink ISDN TLV 34 originates calls Q Message after invalid Escape sequen
36. 2 B Clear To Send CTS This control line indicates that your M icroLink ISDN TLV 34 is ready to send data This output signal from your M icroLink ISDN TLV 34 is normally always active ON but is controlled by the AT D and AT Q commands refer to pages 36 and 50 Ring Indicator RI This control line indicates when an incoming call is being detected This output is active ON when the M icroLink ISDN TLV 34 detects an incoming call Incoming calls are only detected if the DTR control line is active ON or the AT amp DO is in effect Refer to the ATA command on page 32 Data Carrier Detect DCD This output from the M icroLink ISDN TLV 34 normally becomes active ON when a successful connection has been established It is controlled by the AT amp C command refer to page 34 98 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Error Codes D Error Codes When an error occurs a value corresponding to the cause of the error gets written to Registers 154 and 155 These values can help you identify the problem To read the values of these registers place your M icroLink ISDN TLV 34 in Command M ode then type ATS154 cR and ATS155 cn Error codes Reason and possible solution 5154 5 155 T command interface errors Connection establishment aborted by entering Entering characters during connection a character during connection establishment establishment is normally not allowed allow it set bi
37. 4 Test PM 1 i m M icroLink ISDN TL V 34 is performing its self test Note Most ISDN basic rate interfaces make this LED go ON With some PBXs such as Siemens Hicom the green LED may not go ON before a connection has been established 1 In Europe TEI negotiation OK In the US TEI negotiation OK layer 2 active SPID negotiation OK if SPID available MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 19 Status Display and Fault Diagnosis Notes 20 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 5 Operation 5 1 General This chapter describes how to operate the M icroLink ISDN TLV 34 Topics include Communicating with the M icroLink ISDN TLV 34 Operating modes Typing AT commands Resetting the M icroLink ISDN TLV 34 Performing fax activities Performing voice activities 5 2 Communicating with the Terminal Adapter After installing and configuring the MicroLink ISDN TLV 34 communication activities can be controlled using either the supplied communications software program or another program compatible with the AT command set There two ways to communicate with your M icroLink ISDN TLV 34 Indirectly using the commands in your communications software program or Directly using AT commands Indirect method The indirect method involves the use of commands and menus in suitable communications software programs The user s input via an intuitive interface is converted into the appropri
38. 4 s D channel protocol If you want to know which D channel protocol is currently active type and press cR The EAZ terminal selection digit is preset to 0 If for example you want to use 7 as EAZ digit type 2 7 and press cR To find out which EAZ digit is currently assigned to the M icroLink ISDN TLV 34 type AT IEAZ and press CR The AT amp F command factory reset always resets the assigned EAZ digit to 0 This command does not however reset the D channel protocol Thus if the 1TR6 protocol was selected with AT IDP command it will still be available US version All US MicroLink ISDN TLV 34 ISDN terminal adapters are pre configured for the National ISDN 1 protocol NI 1 To operate your M icroLink ISDN TLV 34 on 5ESS line a preliminary AT amp T ISDN standard use the command ATHDP AT amp T To find out which M icroLink ISDN TLV 34 D channel protocol is currently active type AT IDP and press cR Note that you must store a Service Profile ID SPID number in nonvolatile memory before you can establish your first connection refer to the command AT ISPID on pages 16 and 43 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 103 Appendix Answers to Frequently Asked Questions Whatis the best initialization string for calling a BBS All ELSA MicroLink ISDN TLV 34 ISDN terminal adapters come pre configured to maximize BBS operations To save your changes to the configuration in the nonvolatil
39. 5 pin adapter 3 Insert the other cable end into the DTE connector labeled V 24 V 28 on the M icroLink ISDN TLV 34 back panel see Back Panel Connectors diagram number 91 Manual 1997 ELSA GmbH 15 Installation Connecting to an ISDN line Turning on the ISDN terminal adapter Completing the installation European models 16 4 Use the standoffs on each end of the cable to secure the cable connector to the DTE serial port and the M icroLink ISDN TLV 34 The following procedure explains how to connect the M icroLink ISDN TLV 34 to an ISDN digital communications line This procedure assumes an installed ISDN communications line is available If not please contact your telephone company to obtain an ISDN line 1 Connect your NT 1 device to your ISDN communications line If you need assistance please refer to the relevant manual 2 Insert the RJ 11 end of the supplied ISDN S line connection cable into the ISDN S connector on the back panel see Back Panel Connectors diagram number 35 3 Insert the other end of the cable into the ISDN telephone wall jack Use the following procedure to turn on the M icroLink ISDN TL V 34 1 Turn on the M icroLink ISDN TLV 34 with the power switch on the back panel The Test and ISDN Line LEDs flash as the M icroLink ISDN TLV 34 performs a brief self test After the tests complete both LEDs should go OFF 2 Start the communications software and configure it as follows
40. 7 ELSA GmbH 59 Operation S 12 Escape prompt delay Range 0 to 255 1 50 seconds Default value 50 1 second Storage in nonvolatile memory AT W Register 12 specifies the time delay required before and after you type the Escape Characters The guard time ensures that your M icroLink ISDN TLV 34 does not misinterpret the escape characters as data IMPORTANT If Register 12 equals 0 there will be no time requirement for entering the escape character sequence S 14 Bit mapped options Register 514 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 14 and any equivalent AT commands Default settings are shown in bold reserved 0 command echo disabled 1 command echo enabled 0 result codes enabled 1 result codes disabled 0 lt numeric digit result codes 1 word verbose result codes 0 normal operation 1 dumb mode reserved 0 polling allow ed during connection establishment 1 lt polling not allowed during connection establishment 0 MicroLink ISDN TL V 34 is in answer mode 1 2 MicroLink ISDN TL V 34 is in originate mode 5 21 RS 232 V 24 control and signaling lines Register 21 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 21 and any equivalent AT commands Default
41. 8 400 bps ISDN mode only No data compression V 42bis and M NP5 data compression in modem mode V 42bis data compression V 42bis and MNP5 data compression in modem mode DCD always active DCD indicates an existing connection DCD dropped only during disconnection Disable DTR dialing Enable DTR dialing Ignore DTR status change Change to Command mode if DTR OFF Disconnectif DTR OFF Disconnect and reinitialize if DTR OFF MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 91 Appendix AT Commands in Brief Command Meaning 100 DSR and CTS always DSR indicates B channel switched through CTS always on DSR always on and CTS follows DCD DSR indicates B channel switched through and CTS follows DCD Calling tone on no guard tone Calling tone on guard tone 550 Hz Calling tone on guard tone 1800 Hz Calling tone off no guard tone Calling tone off guard tone 550 Hz Calling tone off guard tone 1800 Hz Terminate connection hang up Normal mode Dumb M ode Display product code in format nnn Display check sum Display result of check sum Display firmware version and date Display current configuration Display serial number Display product name and hardware release 16 Store numbers for closed user groups Set display subscriber number Setting and display of Directory Number DN Set display D channel protocol Set display EAZ digit Set display accepted M SNs Set d
42. CT 12000 REL MNP CONNECT 14400 REL MNP CONNECT 16800 REL MNP CONNECT 19200 REL MNP CONNECT 21600 REL MNP CONNECT 24000 REL MNP CONNECT 26400 REL MNP CONNECT 28800 REL MNP CONNECT 31200 REL MNP CONNECT 33600 REL M NP Transfer rate 300 bps duplex with M NP or Transfer rate 1200 33 600 bps duplex with M NP or V 42 bis Transfer rate 300 33 600 bps duplex with M NP CONNECT 1200 REL LAPM CONNECT 2400 REL LAPM CONNECT 4800 REL LAPM CONNECT 7200 REL LAPM CONNECT 9600 REL LAPM CONNECT 12000 REL LAPM CONNECT 14400 REL LAPM CONNECT 16800 REL LAPM CONNECT 19200 REL LAPM CONNECT 21600 REL LAPM CONNECT 24000 REL LAPM CONNECT 26400 REL LAPM CONNECT 28800 REL LAPM CONNECT 31200 REL LAPM CONNECT 33600 REL LAPM Transfer rate 300 33 600 bps duplex with V 42 bis 88 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation Type of Connection CONNECT 300 MNP CONNECT 1200 MNP CONNECT 2400 MNP CONNECT 4800 CONNECT 7200 MNP Transfer rate 300 33 600 bps CONNECT 9600 M NP duplex with MNP class 1 4 CONNECT 12000 M NP CONNECT 14400 M NP CONNECT 16800 M NP CONNECT 19200 M NP CONNECT 21600 M NP CONNECT 24000 M NP CONNECT 26400 M NP CONNECT 28800 M NP CONNECT 31200 M NP CONNECT 33600 M NP CONNECT 300 M NP5 CONNECT 1200 M NP5 CONNECT 2400 M NP5 CONNECT 4800 M 5 CONNECT 7200 M NP5 CONNECT 9600 M NP5 CONNECT 12000 M NP5 Transfer rate 300 33 600
43. DN V120 024191777800 or if abbreviated messages are enabled 2024191777800 1 024191777800 221 024191777800 In addition the Multiple Subscriber Number MSN EAZ or DN dialed by the remote side can be displayed This can be enabled in register S153 see page 72 Example RIN G 024191777800 M SN CONNECT messages format of the CONNECT messages i e the result codes indicating a successful connection is influenced by the commands and ATX see pages 45 53 and 54 The possible CONNECT messages are listed on the following page error in command line 04 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation NO CARRIER When the message NO CARRIER is displayed the cause of the disconnection can be determined by means of the registers 5153 and 154 see page 72 Example NO CARRIER 000 000 normal disconnection by the remote side The following table lists the supported result codes in ISDN mode CONNECT 64000 Fa mE CONNECT 112000 32 CONNECT 128000 32 Connection of any type with any line bit rate Transfer bit rate with 1200 128 000 bps duplex independent of transfer protocol CONNECT 64000 REL 32 connection Foweremwam I CONNECT 64000 REL LAPB 32 connection CONNECT 1200 ISDN V110 CONNECT 2400 ISDN V110 CONNECT 4800 ISDN V110 CONNECT 9600 ISDN V110 V 110 connection with CONNECT 19200 ISDN V110 1200 64 000 bps CONNECT 38400 ISDN V110 duplex CON
44. ELSA GmbH Operation When your M icroLink ISDN TLV 34 is in V 110 mode and the AT amp G1 command 15 in effect you can use the AT B command to set the desired ISDN line bit rate in bits per second bps By default the 60 command is in effect which sets the line rate to the serial port rate o NOTE 0 V 120 and X 75 operation ignore this command and always use a bit rate of 64 000 bps or 56 000 bps C Data compression Disable data compression AT C1 Enable V 42bis data compression 2 Enable V 42bis data compression AT C3 Enable V 42bis data compression This command enables or disables V 42bis data compression during an error corrected connection in X 75 or V 120 mode This command works with the AT N command which determines your M icroLink ISDN TLV 34 s operating mode refer to page 46 The default setting AT C3 enables V 42bis data compression If this compression method is not supported by the remote modem your M icroLink ISDN TLV 34 attempts to establish a connection without data compression regardless of the AT C command in effect If you desire you can use the AT command to disable data compression amp C DCD option AT amp CO DCD is always active AT amp C1 DCD indicates a connection AT amp C2 DCD is dropped during disconnection only This command controls the Data Carrier Detect DCD signal The proper use of this command depends largely on your communications sof
45. MicroLink ISDN TLV 34 User s M anual Copyright 1995 97 ELSA GmbH Aachen Germany All the information contained in this manual has been carefully checked It does not however provide any assurances about specific product features ELSA assumes liability only in the scope covered in its General Terms and Conditions No part of this manual or the software supplied with the product may be reproduced or passed on in any form without the written permission of ELSA ELSA reserves the right to make appropriate changes to any of its products at any time ELSA GmbH is a DIN EN ISO 9001 certified company With the certificate of May 16 1995 the authorized certification institute TUV CERT has confirmed the conformity of ELSA GmbH with the worldwide quality standard DIN EN ISO 9001 The certificate number of ELSA GmbH is 09 100 5069 Trademarks ELSA M icroLink is a registered trademark of ELSA IBM is a registered trademark of International Business M achines Aachen April 1997 Art No 20537 1297 Contents Contents DITO LUNG eto NS 5 Brief DeSCHDUO nidi add dac vie Dn cb CCCo EE C Cul FD rd vL Rv EN 7 Key Features of the M icroLink ISDN TLVi34 acceso nn fm ern m n eto 7 ISDN Features nude tt a rata 7 NME T 8 Transter MORE nn de us 9 Additional Rae 9 GE Cohformib and FEC 11 uicrupnpnm
46. MicroLink ISDN TLV 34 to the 0551 channel protocol type AT IDP DSS1 and press CR If required further settings such as M SN page 42 can be defined This completes the installation procedure for European models US models US versions of the M icroLink ISDN TLV 34 require a D channel protocol a Directory Number DN and a Service Profile ID SPID for short to be defined The D channel protocol determines how control signals are exchanged between the local switch and your ISDN terminal adapter The M icroLink ISDN TL V 34 supports two D channel protocols B National ISDN 1 B AT amp T 5ESS Custom By default the M icroLink ISDN TLV 34 is configured for the National ISDN 1 channel protocol For the AT amp T 5ESS channel protocol type ATHDP AT amp T and press CR To return to the National ISDN 1 channel protocol type AT IDP NI 1 and press CR In this command the letter following the N is an upper case i Your local ISDN service provider may depending on the protocol offered have provided a unique SPID for each device attached to your digital communications line The following table indicates the parameters required for the systems available ISDN Channel Number of B Channels Protocol 1B Channel 2 B Channels AT amp T 5ESS Custom No SPID or DN No SPID or DN point to point AT amp T 5ESS Custom 1 SPID 1 or 2 SPID and point to multipoint 1 or2 DN National ISDN 1 1SPID 1DN 2 SPID and 2 DN M
47. NECT 48000 ISDN V110 CONNECT 56000 ISDN V110 CONNECT 64000 ISDN V110 CONNECT 56000 ISDN HDLC CONNECT 64000 ISDN HDLC CONNECT 56000 ISDN V120 V 120 X 75 or HDLC CONNECT 64000 ISDN V120 connection without CONNECT 56000 ISDN X75 data compression CONNECT 64000 ISDN X75 CONNECT 112000 ISDN X75 CONNECT 128000 ISDN X75 VI CONNECT 4800 CONNECT 9600 CONNECT 19200 CONNECT 38400 CONNECT 48000 CONNECT 56000 CONNECT 1200 CONNECT 2400 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 85 Operation Connection type CONNECT 56000 ISDN V120 V42BIS CONNECT 64000 ISDN V120 V42BIS CONNECT 56000 ISDN X75 V42BIS CONNECT 64000 ISDN X75 V42BIS CONNECT 112000 ISDN X75 V42BIS CONNECT 128000 ISDN X75 V42BIS CONNECT 56000 ISDN X75 M LP CONNECT 64000 ISDN X75 M LP CONNECT 112000 ISDN X75 M LP CONNECT 128000 ISDN X75 M LP CONNECT 56000 ISDN X75 V42BIS M LP V 120 or X 75 connection with data compression X 75 connection with 56 000 128 000 bps duplex 75 with V 42bis CONNECT 64000 ISDN X75 V42BIS M LP connection with CONNECT 11200 ISDN X75 V42BIS M LP 56 000 128 000 bps CONNECT 128000 ISDN X75 V42BIS M LP duplex V 110 V 120 or X 75 connection independent of transfer rate V 120 X 75 connection with data compression and independent of transfer rate CONNECT ISDN V110 CONNECT ISDN V120 CONNECT ISDN X75 CONNECT ISDN V120 V42BIS CONNECT ISDN X75 V42BIS The command AT M 1 has no effect on the abbreviated
48. OMA 83 Online state resuming eene 48 Operating MODE 46 64 Originate iode tae renean tet 60 Originator M SN setting and display 40 0512 106 Parameter settings display 39 32 EN 11 115 Point to point protocol 48 Point Sons nn Gabaa td 60 EN 48 116 Product information display 39 Product name display tabe 39 121 Appendix Index Product SUDDOTE so tette Seide canta 109 Rate renegotiation 63 REJISTET cesi RR 57 Register contents display 51 Registers setting and reading 51 Remote scene 72 80 83 cas dut qos quitte dora 109 Request To Send osse aranea t meis 98 Restricted power condition 13 RESUIE COMES 60 70 83 Result codes enabling and disabling 49 Result codes Torrent 53 37 62 RING 67 83 BINGO Boat ost es 58 Ringing 67 Rings number to auto answer 57 dS fade edi erosion 96 9 232 IhntelfdCe ta 95 98 55 232 MCS coit anses 60 66 bes DON um 66 67 RTS CTS hardware handshake 50 SIT Interface oth acu quodis 116 e e
49. Online nodes ISDN number 01910 in Germany AT N9 selects the CEPT or KIT access where you can read all CEPT and KIT graphics pages AT N8 on the other hand selects VT 100 access where you can read VT 100 compatible pages only MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 107 Appendix Product Support F Product Support You need help 9 IMPORTANT 9 W ho to contact If you encounter any problems during the installation or operation of your ISDN terminal adapter please consult this manual first If you have further questions you can contact our Support team In this case please always provide the following information Precise model name and firmware version of the ISDN terminal adapter the firmware version can be displayed with the ATI3 command and the model name can be displayed with ATI6 The configuration of the terminal adapter The current parameter settings can be displayed with the command ATI4 the register values are displayed with AT R Special ISDN settings are displayed with AT H 2 commands For example the AT IMSN command displays the MSNs selected for the ISDN terminal adapter Your operating system and hardware environment Name and version of your communications program A detailed error description To be certain try to reproduce the error at least three times and exactly describe the steps you took to deliberately trigger the error If you get an unexpected NO CARRIER message you can de
50. SA GmbH Appendix AT Commands in Brief Appendices A Commands in Brief Command Meaning Outgoing digital call Incoming digital call Outgoing digital call Incoming analog call Outgoing digital call Incoming analog digital call Outgoing analog call Incoming digital call Outgoing analog call Incoming analog call Outgoing analog call Incoming analog digital call Outgoing analog 4 digital call Incoming digital call Outgoing analog 4 digital call Incoming analog call Outgoing analog digital call Incoming analog digital call 8300 V 110 line bit rate 300 bps M odem mode only 2581200 110 line bit rate 1200 bps 2582400 110 line bit rate 2400 bps B4800 V 110 line bit rate 4800 bps B7200 V 110 line bit rate 7200 bps M odem mode only B9600 V 110 line bit rate 9600 bps 6 812000 V 110 line bit rate 12 000 bps M odem mode only 936 814400 V 110 line bit rate 14 400 bps M odem mode only 6 816800 V 110 line bit rate 16 800 bps M odem mode only 819200 V 110 line bit rate 19 200 bps B21600 V 110 line bit rate 21 600 bps M odem mode only B24000 V 110 line bit rate 24 000 bps mode only B26400 V 110 line bit rate 26 400 bps M odem mode only 828800 V 110 line bit rate 28 800 bps M odem mode only 96 831200 V 110 line bit rate 31 200 bps M odem mode only B33600 V 110 line bit rate 33 600 bps mode only 9o B 38400 V 110 line bit rate 3
51. SDN TL V 34 Goes off hook m Answers the incoming call m Establishes a connection with the remote ISDN device Enters the Online M ode MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 31 Operation 5 10 AT Commands in Detail Command entry All commands given to the modem must begin with the ASCII characters AT or at Ator aT are not valid and end with lt gt Carriage Return Exception The only exception is the command A which repeats the last command line This command is entered without AT and must not be followed by CR Abort command A command line or screen output such as display of the register contents with AT R can be aborted with Ct r1 gt lt X gt or Ctrl C Parameters Commands which require an additional parameter may also be entered without the parameter A missing parameter is regarded as parameter 0 e g ATE ATEQ Identification of the Parameter settings that apply to the default configuration of the ISDN terminal default configuration adapter as set at the factory are marked by the symbol Al Repeatthe last command AT This command repeats the last entered command 9 NOTE9 This command is used without the AT prefix and should not be followed by CR Answer incoming call ATA This command is for Answering incoming calls by entering ATA and lt cR gt M icroLink ISDN TLV 34 notifies you of incoming calls with the RING verbose or 2 numeric result code Furth
52. Set register n to value x Read value for register n Set register n as the default register Read the value of the register last in use Sets the value of the last used register to x 0051 ISDN bit rate 56 000 bps amp S1 DSR indicates B channel active Inactivity timer n 0 255 Standard value 0 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 93 Appendix AT Commands in Brief Command Meaning CC Enable numeric result codes V1 Enable word result codes Display configuration profiles WO No modified CONNECT result codes Wl Identify error corrected connections W2 Identify error corrected connections and method V8 Comprehensive CONNECT result codes amp W1 Save configuration profile 1 Save extended configuration profile 0 W1 Save extended configuration profile 1 X0 Busy line reported with NO CARRIER CONNECT or 1 respectively 1 Busy line reported with NO CARRIER 2 Busy line reported with NO CARRIER X3 X Busy line reported with BUSY 4 Busy line reported with BUSY Wl XON XOFF are passed to the remote unit amp Y0 Select profile 0 for startup configuration 20 Load configuration profile 0 21 i i i Load configuration profile 1 Store numbers m 0 to 19 94 M icroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Technical Specifications B Technical Specifications Power supply Power consumption Design and dimensions Environment Temperature Humidity ISDN Interface So Bus Transmission mo
53. Store MSN n 0 1 AT IMSNn Clear MSN n 0 1 ATHMSN Display stored MSNs The SN command is valid for the 0551 protocol Euro IS DN only This command lets you restrict call acceptance to either of two M SNs in your local ISDN line Using this command you can store in nonvolatile memory up to two M SNs allowed to access your system Each MSN can contain 16 digits 0 through 9 and each number must be entered without country or city dialing codes Your M icroLink ISDN TLV 34 will only accept calls from systems that have either of the two M SNs 42 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 9 NOTE9 Because the numbers are stored in nonvolatile memory they are preserved when the M icroLink ISDN TLV 34 is turned off reset or reinitialized They will be automatically recalled the next time the M icroLink ISDN TLV 34 is turned on If no MSN is stored all calls are accepted regardless of their target M SN In addition incoming calls Without a target MSN are always accepted including the global MSN offered by some network providers 9 NOTE9 Your MicroLink ISDN TLV 34 does not execute commands any other commands that appear on the same command line with these commands 1S P 0 Set display Service Profile ID US protocols only AT ISPIDn s Set Service Profile ID n 1 2 AT ISPIDn Clear Service Profile ID n 1 2 AT ISPIDn Display Service Profile ID n 1 2 With the relevant US protocol define
54. The following table shows the individual bits of Register 179 Default settings are shown bold Bit Dec 0 0 No voice output via loud speaker 1 1 Voice output via loud speaker enabled L9 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 83 Operation 5 12 Result Codes AT commands with Unless the result codes from the ISDN terminal adapter are disabled with the effects on result ATQ1 command see page 49 the ISDN terminal adapter will acknowledge codes command entries and issue messages for example to report an incoming call or a successful connection With the default setting ATV1 the ISDN terminal adapter sends the result codes in verbose form followed by cR and lt LF gt With ATVO the result codes are displayed in abbreviated form as digits followed by lt gt V 0 0 command line executed 0 RING 0 NO CARRIER 3 connection establishment failed disconnected by the remote side or inactivity time elapsed see also registers 5154 5155 page 72 4 78 ERROR _NO DIALTONE 6 no connection to ISDN exchange or own line busy Remote number In incoming calls the ISDN supplies the number of the calling system unless this feature is disabled by the remote side Register S153 see page 72 controls whether the number is displayed after the RING message and or after the CONNECT message Examples RING 024191777800 CONNECT 024191777800 CONNECT 64000 IS
55. Use a baud rate of either 230 400 bps or 115 200 bps m Select the COM port to which the MicroLink ISDN TLV 34 is connected e g COM 1 or COM 2 For more information on performing these steps refer to the manual for your communications software 3 Enter local terminal or direct connect mode Again refer to your communication software manual for assistance 4 Type AT and press cR An result code should be displayed on your computer screen If not compare the PC to Terminal Adapter connection with the Setup diagram To complete the installation refer to the appropriate following section for European or US models as relevant The D channel protocol controls the exchange of signals between the local station and the nearest ISDN exchange The European Community uses either of two D channel protocols The 0551 channel protocol also referred to as Euro ISDN used in most European Community countries 1TR6 channel protocol which is primarily used in Germany MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Installation To ensure compatibility throughout Europe European versions of the M icroLink ISDN TLV 34 support both the international 0551 channel protocol Euro ISDN and the German 1TR6 channel protocol By default the M icroLink ISDN TLV 34 is configured for the 0551 D channel protocol If your local switch requires the 1TR6 channel protocol type AT IDP 1TR6 and press CR To return the
56. XA react like ATX1 and ATX3 respectively and are for purposes of compatibility only X Handling of XON XOFF characters XON XOFF characters are not passed to the remote side AT X1 XON XOFF characters are passed to the remote side If the AT Q1 AT Q4 command is in effect enabling software flow control between your M icroLink ISDN TLV 34 and computer you can use the AT X command to determine whether the XON and XOFF characters are sent to the remote modem The default setting does not send the XON XOFF characters to the remote system AT X1 sends the XON and XOFF characters to the remote system amp Y Select startup configuration profile AT amp YO Load configuration profile 0 at startup AT amp Y1 Load configuration profile 1 at startup The AY amp Y command determines whether stored configuration profile 0 or 1 is loaded after the M icroLink ISDN TLV 34 is turned on reset or reinitialized following an ON to OFF DTR transition with the appropriate AT amp D command in effect refer to page 36 The default setting amp Y0 loads the parameters from configuration profile 0 the next time the M icroLink ISDN TLV 34 is turned on reset or reinitialized To use the parameters from profile 1 instead issue the AT amp Y1 command Z Load configuration profile ATZn Load configuration profile n n 0 or 1 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 55 Operation Any existing connection is terminated A
57. a merchant If the purchaser does not have a court of jurisdiction in the Federal Republic of Germany or if he moves his domicile out of Germany after conclusion of the contract ELSA s court of jurisdiction applies This is also applicable if the purchaser s domicile is not known at the time of institution of proceedings e The law of the Federal Republic of Germany is applicable The UN commercial law does not apply to dealings between ELSA and the purchaser MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 119 Appendix Index Index ITR6 protocol ioci ette tainen 105 113 1786 protocol selecting 41 103 BESS protocol ar abanico ats 105 113 SESS protocol selecting seems 41 103 Accepting a Callisti rtt toss 32 57 Access flags setting 52 Adaptive answer function 2 Answer TODOS names 44 60 ARG TOS ducas tm ore e ent dn 105 Asymmetric Dit rates names 63 Asynchronous transmission 113 Asynchronous synchronous conversion 48 32 AT command 60 71 AT command Sel ecc ttti iria 113 COMMANAS x assert creer riri bn 32 103 ATS T SESS protocol 105 AT amp T 5ESS protocol selecting 103 AT amp T BESS selecting 41 AUD SANS E s nine Minas 57 Automatic dialing with DTR sssr 35 Automatic retrain acus ua ver e S ne 37 B
58. ae tee 114 Transmission state resuming 48 S nct m te ma t rape 117 BA Puesta edi pese as pra rn 106 LSU eaten ORE TON QE nr ar re ne E 46 64 117 SIN 77 bota bet Rp a Depp T 46 64 117 M 520 SEINS ced re tore prot 16 Mag ots dta eut oo D M LA OE 63 V24 intefa Eanna nanka aaa 95 98 dem nas dan 60 66 My velit nn A R 63 VAR eN 34 65 105 117 ig C PM ED TUS 63 V 8 bit rate adaptation 45 MiFast ClaSS os iic Ira pter pr oet canoe roto 63 M FaSE Class 10 eds than 63 Verbose result codes 53 et ra dr la sein et oie 53 Var5ro anu fTiD sese dote aan 39 Voice Operation mcer meg 29 tb etra fene 43 61 W hlleitungsbetrieb eene 67 JO usto bu non 46 64 117 X15 SOUUINGS ot dendi qb eee feas 16 KONI XO FF RNA auos nt nn tds 55 66 XON XOFF software handshake 50 ZIP TINGS E E e bet D DR Pets 105 LOG ECCE 106 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH
59. al numbers to be assigned to one ISDN line by the responsible exchange Normally these are three numbers but may be up to eight Similar to the EAZ digits of the J1TR6 protocol these numbers can be used to select one of several terminal devices connected to the same S bus Unlike the EAZ digit which is appended to the actual number an M SN can be up to eight digits long M SN NI 1 The National ISDN 1 standard is a common specification in the US for the ISDN D channel protocol Network Terminator This is a device installed on the terminal side of an ISDN Basic Rate Interface which converts the signals coming from the exchange into the form needed by the 5 interface and vice versa The parity bit is a control bit that is sent in addition to a number of data bits in a data transmission The data bits set to 1 are supplemented by the parity bit to an even or odd bit sum The parity check is a simple method of error detection However this method is not very reliable as for example double bit errors are not recognized Therefore in data communications normally no parity is selected which besides results in an increase of the transmission speed since no additional parity bit has to be sent MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 115 Appendix Glossary PPP S bus SPID S T Interface Synchronous transmission T 70NL TA Terminal Endpoint Identifier Terminal adapter Trans
60. ame number as primary connection without SPC flag Pe ie 0 supplied number CLIP not required for identification of second B channel 1 supplied number CLIP required for identification of second B channel HH occ 5 1 CONNECT reported after secondary connection establishment 128 1 DSR off when secondary connection is established The secondary connection must be established or the cancellation must be reported to the remote side within 30 seconds otherwise the primary connection is canceled Dec am 0 ERE 0 lt connection hold time starts when throughput falls below the limit 6 The secondary connection is made when the throughput limit is exceeded If the secondary connection fails call establishment is retried every 15 seconds as long as the reason for the secondary connection lasts Error messages resulting from these attempts are neither saved nor reported The secondary connection is dropped after the time set in Register 178 connection hold time 9 The connection hold time starts with every charge information beginning of a new charge unit if the throughput limit is exceeded When the throughput falls below the limit the secondary connection is dropped after the connection hold time elapses The connection hold time equals the length of one charge unit minus three seconds so that the secondary connection can be dropped three seconds before the next charge unit begins During the first charge unit where the l
61. ands AT D and AT amp M o NOTE9 Your M icroLink ISDN TLV 34 does not execute commands that follow AT amp Z in the command line To include additional commands on the same command line with the AT amp Z command have them follow AT and precede amp Z 56 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 5 11 Registers M icroLink ISDN TLV 34 has internal registers you can use to modify the configuration of the ISDN terminal adapter see ATSn command page 51 Bit mapped registers Be very careful with changing bit mapped registers i e registers which control more than one single function The bit mapped registers mainly serve for the display of the status of the ISDN terminal adapter To change the configuration of your ISDN terminal adapter you should use the safer and more convenient AT commands instead The default values for the individual bits are printed in bold face Changing individual The following example illustrates how to change the value of a bit mapped bits register To set for example bit 6 of register S14 allow polling during connection establishment proceed as follows First use the ATS14 command to display the current value of register S14 current value 210 m Add the decimal value of bit 6 21 decimal value 25 64 to the current register value new register value 210 64 74 m Set register S14 to the new value 74 with the ATS14 74 command This will set bit 6 of S14 to 1 without affectin
62. ansmitter UART to operate at speeds up to 115 200 bps B AnNT 1 device in the US only An ISDN digital communications line B Anavailable AC power outlet o NOTE M icroLink ISDN TLV 34 can also be connected to the serial port of an Apple Macintosh computer This connection requires a serial cable with a 9 pin male connector on one end for connection to the Macintosh and a 25 pin male connector on the other MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 13 Installation 33 Installing the Terminal Adapter During the installation refer to the following diagrams which show the front and back of your M icroLink ISDN TL V 34 Front panel LEDs Back panel connectors ON OFF switch AC power connector Serial line connection to computer Reset switch ISDN line connector S S T bus interface Installation summary The installation process involves the following steps 1 Powersupply Connect the M icroLink ISDN TL V 34 to an AC power outlet See page 15 2 Serial interface Connect the M icroLink ISDN TL V 34 to a computer serial port See page 15 3 ISDN line Connect the M icroLink ISDN TL V 34 to an ISDN digital communications line See page 16 4 Switching on Turn on the M icroLink ISDN TL V 34 See page 16 14 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 5 Selecting D channel protocol 9 NOTES Setup diagram Connecting to an AC power outlet Connecting to a computer serial port 9 NOTE
63. are shown in bold Line bit rate 300 bps AT B300 Line bit rate1200 bps AT B1200 Line bit rate2400 bps B2400 Line bit rate4800 bps B4800 9 Line bit rate9600 bps AT B9600 10 Line bit rate12 000 bps 12000 11 Line bit rate14 400 bps AT 14400 12 Line bit rate16 800 bps AT 16800 13 Line bit rate19 200 bps 19200 14 Line rate21 600 bps AT B21600 15 Line bit rate21 000 bps AT B24000 16 Line bit rate26 400 bps B26400 17 Line bit rate28 800 bps AT B28800 18 Line bit rate31 200 bps AT B31200 19 Line bit rate33 600 bps AT B33600 21 Line bit rate38 400 bps AT B 38400 21 5 0 reserved 0 0 Line bit rate depends on serial port bit rate AES 1 Line bit rate determined by AT B 7 0 0 serial port bit rate remains unchanged RAES 1 serial port bit rate adapted to ISDN line bit rate 546 Data compression Register 46 enables or disables V 42bis data compression The contents of Register 46 can be stored in the nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 46 and any equivalent AT commands Default settings are shown in bold 3 3 6 0 data compression disabled AT CO 1 V 42bis data compression is enabled AT C1 M NP5 data compression is enabled 2 V 42bis data compression is enabled AT C2 3 V 42bis data compression enabled AT C3 MNP5 data compression is enabled 4 7 0 rese
64. ass 2 and Class 1 if the MicroLink ISDN TLV 34 receives a RING result code directly after the AT FCLASS 2 or AT FCLASS 1 command it sends the result code at 19 200 bps If another AT command is sent instead your MicroLink ISDN TLV 34 returns to using the bit rate at which the AT command was sent MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 5 8 Voice Operation The MicroLink ISDN TLV 34 provides voice functions that in connection with the supplied voice software and PC soundcard enable the use your M icroLink ISDN TLV 34 as an answering machine For more information on performing voice activities refer to the voice software documentation To obtain a detailed description of the voice commands that the M icroLink ISDN TLV 34 supports call the ELSA ONLINE Support BBS If on replay the voice files sound distorted the byte order of the voice data may be reversed Such reversals occur when voice files are recorded using older recording methods To resolve this problem refer to Register 5229 on page 81 See also Register S230 page 83 5 9 Dialing and Answering Calls This chapter describes how to use AT commands to dial and answer calls If you will be using the commands in your communications software program to originate and answer calls this chapter can be skipped 5 9 1 Originating a Call To originate a call 1 AT D telephone number where telephone number is the number the M icroLink ISDN TL V 34 is
65. ate AT command s for issue to the M icroLink ISDN TLV 34 Thus communication with your device is possible without prior knowledge of the AT command set Refer to the program manual for instructions on performing these tasks Direct method With the direct method your communications software should be in local terminal or direct connect mode AT commands can thus be typed in directly Before typing AT commands the M icroLink ISDN TLV 34 must be in Command M ode described in the next section Entering AT commands is described on page 22 A complete description of the AT commands supported by the M icroLink ISDN TL V 34 begins on page 32 5 3 Operating Modes The M icroLink ISDN TL V 34 has two operating modes Command M ode and Online M ode When using a software interface to communicate indirectly with the modem these modes will not be apparent to the user To use the direct method the M icroLink ISDN TLV 34 must be in Command M ode before typing AT commands This is described in the next section MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 21 Operation 5 3 1 Command Mode In Command M ode the AT commands as entered control the M icroLink ISDN TLV 34 to perform activities such as dialing or answering a call The MicroLink ISDN TLV 34 automatically defaults to Command M ode in the following cases B When it is turned on When it disconnects from a connection key on your computer keyboard is touched whi
66. available your fax number Your registration will be processed within one working day After that you are a registered user entitled to access the product information forums and to put questions to our Support team W hen trying to access a software Support forum such as TELIX or TELIXW IN for the first time you will be asked for the serial number of your software You will find the Telix serial number on the original Telix disk label After Manual 1997 ELSA GmbH 11 Appendix Product Support CompuServe 9 ATTENTION 0 Repair 112 entering a valid serial number you are entitled to access the forum and write E mails to our Support team You can reach our ELSA Support forum in CompuServe via GO ELSA In this forum we offer you the same support and service as in the ELSA ONLINE Support BBS Please pay attention to the structure of the mail and file areas in the ELSA forum Please always choose the appropriate mail area for your questions for example ELSA ISDN Adapters or ISDN Software for questions about your ISDN product This facilitates our support work and guarantees that your question 15 answered as soon as possible If you have questions about CompuServe CIM CompuServe Information Manager or the CompuServe registration please contact the toll free CompuServe Support directly If you are not sure that your ISDN terminal adapter is defective and that it may be the configuration that is at fault please call th
67. ber n in memory location 0 25552424 cR AT Pmn Store 10 telephone numbers in memory 4 5558096 cn m the memory location 0 through 9 n a telephone number up to 36 digits Store the telephone number n preceding the semicolon Use ATD5554321 cR ATO to dial the number Commands for Dialing Stored Telephone Numbers Dial the number in memory location m that was stored using the ATDS 6 cn AT amp Z n or AT Pn command Same as ATDSzm ATD 7 cR Dial the number in memory location 0 that was stored using the ATDS cn AT amp Zme n AT amp Z n or AT Pn command Same as ATDS ATD cR Dial the number stored with the ATDn command Type this ATO cR command when there is no data connection with a remote modem If you try to store a new telephone number in a memory location that already has a stored number the new number overw rites the old one 5 9 3 Answering Calls There are two ways to answer incoming calls Automatically where the MicroLink ISDN TLV 34 automatically answers call after a predefined number of rings occurs See the next section m Manually where you type the A command See the next page 9 NOTE If the MicroLink ISDN TLV 34 is in dumb mode refer to page 38 incoming calls can only be answered automatically 30 MicroLinkISDN TLV 34 Manual 1997 ELSA GmbH Automatically answering calls M anually answering calls Operation Register 50 controls th
68. ce AT Q0O CONNECT message after invalid Escape sequence AT Q1 Disable CONNECT message after invalid Escape sequence AT Q lets you suppress the CONNECT result code if the Escape Characters are entered incorrectly MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 49 Operation The default setting AT QO allows CONNECT result codes to appear after the Escape Characters have been entered incorrectly AT Q1 suppresses CONNECT result codes after the Escape Characters have been entered incorrectly Q Data flow control on serial interface AT Q0 No handshaking AT Q1 Bi directional XON XOFF softw are handshaking AT Q2 Unidirectional CTS hardware handshaking AT Q3 Bi directional RTS CTS hardware handshaking AT Q4 Unidirectional XON XOFF softw are handshake AT Q5 Same as Q2 but CTS is OFF until a connection is made AT Q6 Same as Q3 but CTS is OFF until a connection is made The AT Q command lets you select various handshake methods for data flow control on the RS 232 V 24 interface serial port 9 NOTE 0 In asynchronous direct mode both parties must perform data flow control according to V 110 on the ISDN B channel If hardware handshaking is selected with AT Q2 or AT Q3 the Request To Send RTS and Clear To Send CTS interface lines control the data flow betw een your M icroLink ISDN TLV 34 and computer if the RTS line is OFF the MicroLink ISDN TLV 34 temporarily stops sending data to your computer
69. command AT amp W or AT W The following table shows the individual bits of Register 29 and any equivalent AT commands Default settings are shown in bold Bit Dec Ed automatic fallback to V 23 allowed 1 1 automatic fallback to V 23 not allowed OO 1 enable asymmetric rates 2 0 enable V 8 negotiation AT M 0 1 disable V 8 negotiation AT M1 reserved 0 enable V 34 V Fast Class rate renegotiation l disable V 34 V Fast Class rate renegotiation BE A NN 32 lz enable V 32 clear down sequence o o oo 1 V 32 9600 bps Trellis coded 128 1 V 8 answer tone without V Fast Class ID Range 0 to 255 in 10 second intervals Default value 0 timer disabled Storage in nonvolatile memory AT amp W or AT W Register 530 specifies the number of seconds without data being sent after which your M icroLink ISDN TLV 34 will disconnect from a remote modem Register 531 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register S31 and any equivalent AT commands Default settings are shown in bold MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 63 Operation 0 lt guard tone calling tone on 1 guard tone 550 Hz calling tone on 2 guard tone 1800 Hz calling tone on 4 no guard tone calling tone off 5 guard tone 550 Hz calling tone off 6 guard tone 1800 Hz callin
70. croLink ISDN TLV 34 Manual 1997 ELSA GmbH 9 Brief Description Closed user group Support Additional information Flash ROM 230 400 bps Ringing bell 10 The European version of the MicroLink ISDN TLV 34 can automatically check incoming telephone calls This feature lets you restrict call acceptance to a private user group protecting your system against unauthorized access For added security the European version of the M icroLink ISDN TLV 34 can also display the telephone number of an incoming call before establishing the connection In addition connection costs can be displayed during and after a connection Connection Status information about the status of the connection can also be displayed e g ALERTING Flash ROM technology allows the quick and easy update of software simply by reading in the new file The state of the art is always just an update away Using a suitable serial interface card a line bit rate of 230 400 bps is possible Your MicroLink ISDN TLV 34 can alert you of incoming calls by ringing just like a normal telephone See register S54 page 67 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Brief Description 2 2 CE Conformity and FCC Rules C 0188 X FCC Interference The CE seal indicates compliance with rules laid down by the European Community on April 29 1991 for the alignment and mutual recognition of the member states laws concerning telecommunications devices All
71. d the Service Profile ID SPID can be set or displayed This number is or for channel bundling these numbers are allotted to you by the network provider For every SPID entered be sure to enter the related DN see HDN above The first B channel required 1 the second B channel n 2 The directory number can be up to 16 digits 0 9 long Changes are stored in the non volatile memory and are maintained until changed again A second SPID should only entered if the device is to use both channels simultaneously for channel bundling If two separate devices are attached to one S interface then each requires its own SPID DN pair to be entered as SPID1 DN1 SPID2 DN2 are left empty With AT amp T Point to Point connections no SPID is required and no entries should be made y Constant DTE rate ATJO DTE rate independent of connection DCE bit rate AT 1 DTE rate matches connection DCE bit rate For direct online connection AT N1 in modem mode and with V 110 in ISDN mode it is desirable to maintain a fixed DTE rate L Speaker volume ATLO Low volume ATL1 Low volume ATL2 Medium volume ATL3 High volume The ATL command controls the volume of the M icroLink ISDN TLV 34 speaker The default setting ATL2 selects medium volume MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 43 Operation L Bitrate adaptation in answer mode AT LO V 110 bit rate adaptation AT LO Partial bitrate adaptation AT L1 V 11
72. d an OK result code is displayed The desired AT commands can then be entered 4 Toreturn to Online M ode type ATO and press cR A CONNECT result code is displayed 5 hang up at the end of the data connection type ATH and press cR 22 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 5 4 Entering AT Commands AT commands are entered in a command line which can contain one or more AT commands Enter a command line as follows 1 Make sure your M icroLink ISDN TLV 34 is in Command M ode refer to page 21 2 Type the AT characters These characters must be entered at the start of each new command line These characters provide the MicroLink ISDN TLV 34 with the serial port transmission Speed character length and parity settings used by your computer 9 Both AT characters must be typed in the same case Do not type Ator aT 3 Type one or more commands A command line can contain a maximum of 255 characters including AT 4 Press CR The MicroLink ISDN TLV 34 sends an OK result code and performs the task s 9 NOTE9 If you receive ERROR instead of OK the command line or a part of it was not executed Check for errors in the command line entered The following example shows a series of AT commands Each command line starts with AT and has an OK result code below it Command input in at n3 several command lines These commands can be entered in sequence in a single command line Com
73. des D channel protocol ISDN mode Transfer protocols Data compression Channel bundling Max data throughput Error correction Protocol recognition Bit rate recognition Transfer rates Modem mode Data compression Error correction Bit rate adaption MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 9 V max 900 mA AC 8 W Desktop device with metal housing 108 x 36 x 200 mm W x H x D 5 40 C 0 80 non condensing Basic rate interface 5 1 430 and ISDN PBX device with 5 bus Euro ISDN DSS1 1186 incl SPV National ISDN 1 AT amp T 5ESS also point to point point to multipoint V 110 1 463 asynchronous 1200 38 400bps V 120 56 000bps 64 000bps X 15 with 64 000bps and 56 000bps X 75 T 70NL with 64 000bps and 56 000 bps X 75 T Online VT 100 X 75 T Online CEPT KIT HDLC synchronous 56 000 64 000 bps PPP after RFC 1662 V 42bis data throughput up to 23 Kbytes s over one B channel Static and dynamic data throughput up to 15 Kbytes s without compression 230 400 bps asynchronous at the ED interface When using ITU T V 120 and X 75 Automatic switching between V 110 V 120 and 75 Automatic in V 110 mode asynchronous and automatic switching between 64 000 56 000 bps 33 600 300 bps asynchronous V 34 V Fast Class V 32bis V 32 V 22bis V 21 V 23 also Bell 212A and Bell 103 V 42bis and M NP Class 5 V 42 and M NP Class 4 V 8 and V 100 can be disabled 95 App
74. e ELSA Hotline before sending us the ISDN terminal adapter for repair If you want to send in the ISDN terminal adapter for repair please use Suitable packing material and the original box to prevent damage to the device during the transport Please always include a copy of the original purchase receipt as well You can help us to do the repair as fast as possible by including a detailed error description with the device to help us track down the error source Please send your ELSA product directly to our Service department MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Glossary G Glossary 1TR6 5ESS Asynchronous transmission AT command set B channel Basic Rate Interface Baud CAPI CCITT Communications software 1TR6 is a specification by the German Telekom for ISDN terminal devices with S interface This specification defines the gt 0 channel protocol and is used mainly in Germany M ost other European countries use the gt DSS1 protocol 5ESS is a US standard for the ISDN gt 0 channel protocol developed by AT amp T It is a preliminary standard to the National ISDN 1 standard NI 1 In serial data transmission a method is needed to synchronize transmitter and receiver in order to enable the receiver to detect the beginning and end of a transmitted character In asynchronous transmission this structuring is achieved by marking each byte to be sent with one start bit and one or two stop bit
75. e automatic answering feature This register has a range between 0 and 255 Its default value of 0 disables automatic answering To enable automatic answering use the following procedure to set Register 50 to a value between 1 and 255 1 ATSO n where n is a number from 1 to 255 that corresponds to the number of rings that must occur before the M icroLink ISDN TLV 34 automatically answers the call For example to automatically answer calls after the second ring type AT 502 2 Press CR The M icroLink ISDN TLV 34 responds with OK and enables automatic answering Automatic answering stays in effect for as long as the M icroLink ISDN TLV 34 is turned on Resetting it or turning it off returns Register 50 to the setting specified in nonvolatile memory To turn off the automatic answer feature type AT 50 0 and press cR The value of Register 50 returns to 0 disabling automatic answering To permanently enable automatic answering use the AT amp Wn command to store the automatic answer setting in nonvolatile memory For example 3 ATSO 2 amp WO sets auto answering to configuration profile 1 3 ATSO 2 amp WI1 sets auto answering to configuration profile 2 For more information on the AT amp W command refer to page 54 When the automatic answer feature is not in use incoming calls can be manually answered with the ATA command Should you receive an incoming call just type ATA and press cR Your M icroLink I
76. e command ATS190 0 o gt S 191 Charge units for current last connection DSS1 1TR6 Register S191 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1TR6 protocols This register is a string register that shows the number of charge units or the total charge depending on the network provider for the current or last connection This register can contain up to 10 characters To reset the contents of this register use the command ATS191 0 Depending on the netw ork provider the charge units may not be written to this register before the connection ends S 192 Total charge units DSS1 1TR6 Register S192 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1TR6 protocols This register is a string register that contains the total number of charge units or the total charge depending on the network provider for all previous connections This register does not reflect current connections This register can store up to 10 characters To reset the contents of this register use the command ATS 192 0 S 193 MSN EAZ DN of lastincoming call Register 193 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1TR6 protocols This register is a string register that contains the remote system s Multiple Subscriber Number MSN with 0551 protocol or the EAZ terminal selection digit with 1TR6 protocol for the most recently dialed call This register can
77. e memory use the command AT W You can restore the factory default settings with the AT amp F command How can I accelerate data communications programs such as CompuServe Information Manager under Windows If your computer has a buffered UART interface chip type 16550 make sure the 386Enh section in the SYSTEM INI file of your Windows directory has the follow ing entry COMxFIFO 1 For the variable x enter the number of the interface you chose for example COM 2FIFO 1 2 stands for COM port 2 You can use the supplied diagnostic program M ODEM TST EXE to check which UART type is used on the selected interface If your computer does not have a 16550 UART we recommend that you upgrade or replace your serial interface board My MicroLink ISDN TLV 34 does not accept any AT commands If your typed AT commands do not appear on your computer screen and or are not executed by your M icroLink ISDN TLV 34 m Verify that your communication software is configured to address the same COM port to which your M icroLink ISDN TLV 34 is connected Make sure your communication software is addressing the appropriate interrupt line IRQ for the selected COM port You can use the supplied diagnostic program MODEMTST EXE to determine the IRQ for your serial interface m lf you have changed the MicroLink ISDN TLV 34 configuration use the AT amp F command to restore the factory default settings even if this command does not appear on the scre
78. e the cause of the problem The standard communications drivers shipped with 05 2 may cause problems when transferring data across the serial interface of your PC at high rates In this case the optimized communications drivers 510 5 5 and VSIO SYS programmed by Ray Gwinn will help They must be entered as devices in the CONFIG SYS file instead of the standard 0S 2 drivers COM SYS and VCOM SYS You can download these shareware drivers from the ISDN forum on the ELSA ONLINE Support BBS The compressed file contains detailed installation instructions 106 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Answers to Frequently Asked Questions Telix get several CRC errors when transferring files with Telix for DOS What can be the reason M ake sure your M icroLink ISDN TLV 34 and Telix are using the same handshaking method All ELSA modems are preset to RTS CTS handshake AT N3 In Telix for DOS v3 22 XON XOFF handshake is the default setting M ake the following changes in the Telix configuration lt Alt gt lt O gt under Terminal options XON XOFF Software Flow Control Off CTS RTS Hardware Handshaking When exiting the configuration select Write setup to disk to activate the changes each time Telix starts How must Telix for Windows be configured for the M icroLink ISDN TLV 34 Under Telix for Windows or other terminal programs an external icroLink ISDN TLV 34 can accessed with AT commands
79. ecute this command F Display stored numbers AT F This command displays the ISDN numbers stored with the AT P and AT amp Z commands refer to pages 48 and 56 G Line bit rate control MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 3 Operation AT GO Line bit rate determined by serial port rate AT G1 Line bit rate set with The default setting AT GO sets the ISDN line bit rate to the computer s serial port bit rate during V 110 operation The AT characters on the command line tell your M icroLink ISDN TLV 34 to use the same speed and mode as the serial port 9 NOTE9 During X 75 or V 120 operation this command is ignored and the ISDN bit rate remains fixed at 56 000 bps or 64 000 bps AT96G1 lets you use the AT B command described on page 33 to set the ISDN line bit rate to a speed independent of the serial port bit rate amp G Set calling tone and guard tone AT amp GO Enable calling tone disable guard tone AT amp G1 Enable calling tone enable 550 Hz guard tone AT amp G2 Enable calling tone and 800 Hz guard tone default UK AT amp GA4 Disable calling tone and guard tone default USA AT amp G5 Disable calling tone enable 550 Hz guard tone AT amp G6 Disable calling tone enable 1800 Hz guard tone The AT amp G command enables or disables the calling tone and guard tone The calling tone is a periodic tone transmitted between the dialing and connection phases This tone can lead to
80. ed to ELSA ONLINE Port a via MicroLink ISDN Adapter from 1234 at 64000 bps protocol 75 HH HT HP LP HET THEN ELSA ONLINE Support Mailbox ELSA GmbH Aachen Modem 49 0 241 9177981 33600 300 bps ISDN 49 0 241 91777800 64000 1200 bps Durchgehend geoeffnet gMMIEMMMMIMMMMMMPMMMoLlMIHTIMMC MMIEEELIBCM M TUEMMPGBM MWMMMllIIMM Vor und Nachname Enter your first and last name at the prompt Vor und Nachname If you are a new user you can now select the language for the BBS menus and texts If you feel lost the first time you visit our BBS don t be discouraged There is no way to damage your or our computer system by making wrong entries The BBS software is designed to give you any possible help to find your way M ost problems will disappear if you read the login bulletin and other provided help and information texts carefully To make sure you have access to the BBS when you need it you should register as soon as possible To register you can call the ELSA Support BBS at any time 24 hours a day When logging in for the first time you will give yourself a password 4 to 10 characters You are then an unregistered user with very limited rights You cannot access the product forums before your registration The registration is performed via the menu option REGISTER and is at no additional cost for you except for the costs for the call To register you must tell the system your address phone number and if
81. een or through the permanent display of an unchanging image phosphor burnt 118 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Warranty Conditions g if the warranty claim has not been reported in accordance with 3a 5 Operating mistakes If it becomes apparent that the reported malfunction of the device has been caused by unsuitable software hardware installation or operation ELSA reserves the right to charge the purchaser for the resulting testing costs 6 Additional regulations a The above conditions define the complete scope of ELSA s legal liability The warranty gives no entitlement to additional claims such as any refund in full or in part Compensation claims regardless of the legal basis are excluded This does not apply if e g injury to persons or damage to private property are specifically covered by the product liability law or in cases of intentional act or culpable negligence Claims for compensation of lost profits indirect or consequential detriments are excluded ELSA is not liable for retrieval of lost data unless ELSA employees intentionally or by culpable negligence caused its loss and the purchaser has guaranteed that the data can be retrieved with justifiable effort from data material kept in machine legible form The warranty is valid only for the first purchaser and is not transferable a The court of jurisdiction is located in Aachen Germany in the case that the purchaser is
82. en You should now be able to enter an AT which the M icroLink ISDN TLV 34 answers with OK The MicroLink ISDN TLV 34 always reports NO CARRIER after a dial attempt Why can t establish a connection The reason for a failed connection establishment can be determined by reading the values of Registers 5154 and 155 Use the commands ATS154 and ATS155 to read these register values Then locate the error code in the table on page 99 to find the reason for the failure US version Make sure you stored a valid Service Profile ID SPID number using the command AT ISPID refer to page 43 The MicroLink ISDN TLV 34 must have a unique SPID to establish a connection In addition your ISDN line must provide a data communications service Ask your network provider for details 104 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Answers to Frequently Asked Questions In V 110 operation get a NO CARRIER result code after each dial attempt The Registers 5154 5 155 contain the error code 051 128 V 110 transfer frame of the remote side not recognized This problem does notappear in X 75 mode Why Unlike X 75 or V 120 operation where a constant line bit rate of 64 000 or 56 000 bps is used on the ISDN side the ISDN line bit rate in V 110 mode can be set to values between 38 400 and 1200 bps There are two ways to set the transfer speed in V 110 mode ATO if the MicroLink ISDN TLV 34 is configured to AT GO default setting the ISDN
83. endix Technical Specifications Fax mode Transfer rates Command set Operating modes Voice mode Tone in and output Command set Command set Computer interface System monitoring Status display Additional options FCC conformance CE conformance EU except for France Germany Switzerland USA Approvals RJ 11 Socket Pin Assignment 96 14 400 2 400 bps with V 17 V 33 V 29 V 27ter TR 29 2 Class 2 SP 2388 Class 2 0 TIA EIA 592 and Class 1 TIA EIA 578 Send and Receive Fax Fax Polling via PC soundcard Voice command set as PN 2986 and Rockwell Extended AT command set including EAZ and MSN support caller identification and charge unit counting connection status RS232 V 24 V 28 25 pin D subminiature connector 1200 230 400 bps asynchronous Data format 8 data bits no parity 1 stop bit 8 n 1 Automatic hang up with an unused line can be disabled charge unit counting and limitation Colored LEDs to check ISDN interface and connection V 24 display loud speaker to monitor analog connections Control of closed user groups by checking the caller number Yes see over Yes conforms to EN 50082 Part 1 EN 55022 Class B CE 0188 X BZT A116180E BAKOM 96 0026 1 N See FCC label on the housing MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Technical Specifications FCC Conformance Certificate MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 97
84. ength of the unit is not yet known Register S178 determines the connection hold time S 176 Throughput limit for channel bundling Range l 0 to 255 x 100 bytes sec Default value 70 7000 bytes sec Storage in nonvolatile memory AT amp W or AT W Register 176 specifies the data throughput limit that must be exceeded for the second B channel to be established This register is only used if bit 2 of Register 175 dynamic channel bundling is set to a value other than 0 The second B channel can only be established if the throughput limit is below the maximum throughput of B channel that is the value should not exceed 78 7800 bytes sec MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 79 Operation S 177 Throughput averaging time for channel bundling Range 0 to 32 seconds Default value 0 Storage in nonvolatile memory AT amp W or AT W Register 177 specifies the time during which the average data throughput is calculated in order to smooth short fluctuations of the throughput such as those induced by handshaking The default setting 0 disables data averaging This register is only used if bit 2 of Register 175 dynamic channel bundling is set to a value other than 0 S 178 Connection hold time for channel bundling Range 0 to 255 x 10 seconds Default value 2 20 seconds Storage in nonvolatile memory AT amp W or AT W Register 178 specifies the time 0 to 2550 seconds during which the second B channel is held aft
85. er the throughput falls below the limit defined by Register 176 If the throughput falls below the limit and the connection hold time elapses the second B channel disconnects This register is only used if bit 2 of Register 175 dynamic channel bundling is set to a value other than 0 Bit 3 of Register 175 controls the beginning of the connection hold time 179 Bearer capability Register 179 controls the bearer capabilities for all outgoing analog connections The contents of Register 5178 can be stored in the nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register S179 Default settings are shown in bold 0 telephone service 3 1 kHz 1 telephone service analog 2 Group 2 fax operation 3 Group 3 fax operation 4 data transfer via modem operation 5 Btx via modem operation 9 NOTE 0 Register S179 sets up the service indicator for all connections in ISDN operation so that e g from one device only calls with the service indicator Fax operation are accepted and from another device only calls with the service indicator telephone service are accepted 80 MicroLinkISDN TLV 34 Manual 1997 ELSA GmbH S 190 Remote number Register 5190 15 a string register that contains the ISDN number of the currently or last connected remote system up to 36 digits If no connection has been established no number is issued To reset the contents of this register to zero use th
86. er information to establishing a connection is to be found under registers 5 154 S 155 see page 72 and 5160 page 74 9 NOTE9 If Register 50 is set to a value other than zero enabling automatic answering using the ATA command disconnects the telephone line if bit 6 of Register S14 is set to its default setting of 0 Changing this register value to 1 however will not disconnect the line this setting allows your computer to transmit characters to the your M icroLink ISDN TLV 34 while the connection is being established Please note that registers S151 D channel protocol configuration and S152 Call indication delay are relevant here Commands following ATA in the command line will not be executed To include additional commands on the same command line with the A command have them follow AT and precede A 32 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation B Predefinition of Transfer Type The ATB command lets you specify whether your M icroLink ISDN TLV 34 establishes a digital ISDN or analog modem connection The following table shows the type of connection your M icroLink ISDN TLV 34 will establish for outgoing and incoming calls when various commands are in effect Command ATB16 ATB17 ATB18 ATB20 ATB21 ATB22 ATB24 ATB25 ATB26 Outgoing digital digital digital First digital If not possible then analog Incoming digital digital digital analog digital digital analog analog
87. ervice Indicator and M ultiple Subscriber Number or EAZ digit The default value 0 disables the call indication delay 6 153 coNNECT NO CARRIER result code Register 153 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT W The following table shows the individual bits of Register 153 Default settings are shown in bold Meaning 0 lt remote number 15 not displayed after CONNECT 1 remote number is displayed after CONNECT 1 remote number is displayed after RING 0 MSN EAZ dialed by the remote side is not displayed 1 if bit 0 and or bit 121 M SN EAZ dialed by the remote side is displayed 0 Result codes are not displayed CONNECTING ALERTING CALL SENT 1 Result codes are displayed CONNECTING ALERTING CALL SENT 0 lt reason of disconnection is not displayed 1 reason of disconnection appears after NO CARRIER according to Registers 5154 and 5155 S 154 S 155 Error codes If a connection error occurs connection establishment failed or connection canceled a value corresponding to the cause of the failure is written to Registers 154 and 155 Register 154 indicates where the error occurred Register S155 shows the exact reason for the failure 72 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation Both registers are read only For more information on error codes refer to page 99 S 156 Data packet repetitions received on D cha
88. es while reducing the line charges resulting in significant cost savings The M icroLink ISDN TLV 34 is also intelligent enough to distinguish among incoming ISDN modem and fax calls and can route calls appropriately even if your software does not support auto detection capabilities M oreover the M icroLink ISDN TLV 34 is compatible with the industry standard AT command set for trouble free ISDN or analog communications manually refer to page 32 for more information or using your preferred communications softw are ELSA MicroLink 9 products are continually being improved You will always find the latest information about this product in the Support BBS ELSA ONLINE the ELSA Internet WWW site and Compuserve see page 109 2 1 Key Features of the MicroLink ISDN TLV 34 The following section summarizes the key features of the M icroLink ISDN TLV 34 2 1 1 ISDN Features Channel bundling This feature allows the two 64 000 bps B Bearer channels of an ISDN Basic Rate Interface to be virtually linked doubling the effective data throughput of MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 7 Brief Description D channel protocols PPP conversion Automatic detection ISDN AT command set Automatic cost monitoring a digital connection to 128 000 bps This process uses provisionally a protocol proprietary to ELSA so only a connection between two ELSA devices Supports this The MicroLink ISDN TLV 34 provides AT commands f
89. fterwards the parameter settings saved with AT amp W or AT W configuration profile 0 or 1 refer to page 54 are loaded from the nonvolatile memory of the M icroLink ISDN TLV 34 and become effective o NOTE9 Your M icroLink ISDN TLV 34 does not execute commands that follow ATZ in the command line To include additional commands on the same command line with the ATZ command have them follow AT and precede Z AT amp Zm n Store numbern in position m AT amp Z n Store number n in position 0 The AT amp Z command provides various ways of storing numbers in the MicroLink ISDN TL V 34 s nonvolatile memory The AT amp Zn command lets you store up to 10 telephone numbers in nonvolatile memory After storing one or more numbers you can dial them using the ATDS ATDSzm ATD and ATD m commands described on page 34 To view the stored numbers on your computer screen use the command In the AT amp Zmzn command m Thenisa number between 0 and 9 This is the memory position under which the telephone number will be stored B Themis the actual telephone number and is entered after the equals sign Alternatively you can use the AT amp Z n command to store a telephone number in memory position 0 The AT amp Z command corresponds to the ATP command refer to page 48 The numbers stored with can therefore be overwritten by the AT P command The number stored in position 0 is also used for automatic dialing with see the comm
90. g the other bits 9 To make the new value remain valid even after the ISDN terminal adapter is switched off the active configuration profile must be saved with the AT W command S0 Number of RINGs to auto answer Range 0 255 RING result codes Default value 0 automatic answering disabled Storage in nonvolatile memory AT amp W or AT W Register 50 specifies the number of RING result codes that must occur for your M icroLink ISDN TLV 34 to automatically answer an incoming call When your M icroLink ISDN TLV 34 detects an incoming call the result code RING is issued every five seconds for as long as the call waits on the line The default value 0 disables automatic answering You can then use the ATA command described on page 32 to manually answer calls When the value of Register 50 is greater than zero you can cancel the connection establishment process by typing any character except Lr on your keyboard If Register 14 bit 6 is set to 1 however the connection is not terminated and your computer can send signals to the M icroLink ISDN TLV 34 during the establishment of a connection refer to page 60 By default Register 14 bit 6 is set to 0 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 57 Operation Range 0 to 255 RING result codes Default value 0 Storage in nonvolatile memory no Register 1 counts the number of received incoming RING result codes which are issued every five seconds when an incoming cal
91. g tone off 6 0 Calling tone ITU T V 25 1 Calling tone ITU T V 8 4 0 j Reevd 0 dialing disabled 32 1 dialing enabled AT D1 67 0 reseed S S 36 Operating mode Register S36 is a bit mapped register controlling the operating mode whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 536 and any equivalent AT commands Default settings are shown in bold 0 normal mode V 110 V 100 1 direct mode V 110 V 100 2 2 X 15 without fallback M NP 3 75 42 M NP with fallback to normal mode 4 V 120 without fallback V 42 5 V 120 V 42 with fallback to normal mode 6 X 75 or V 120 without fallback V 42 with fallback to M NP 7 75 or V 120 with fallback to normal mode 8 VT 100 mode for German T Online service only 9 CEPT and KIT mode for German T Online service only 10 Connection without error correction no fallback Al ese o Le ee 0 0 channel bundling disabled 128 1 channel bundling enabled on amp WN L3 64 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation Register 37 indicates the selected line bit rate in V 110 operation The contents of Register 37 can be stored in the nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 37 and any equivalent AT commands Default settings
92. guration Senna 32 39 Configuration profile displaying 53 Configuration profile loading 55 Configuration profile 54 Configuration profile startup 55 CONNECT Messager mans tecta 54 83 CONNECT message after invalid Escape 50 CONNECT message format 72 CONNECT 45 53 70 83 ss co de rot c ein 72 Connection establishment 34 Connection hold time eee 19 Connection india non x5 not ertet torso 34 Connection termination reasons 68 Control channels 114 Cost MONItOTING Sessa aedium eds 15 16 e 08 100 or 106 107 p DN 36 50 66 67 UT tb nt 36 D Chatel n tes 114 D channel protocol sas coi ci es 71 D channel protocol selecting and displaying 41 43 Data channel sinus 114 Data compression 34 65 66 105 117 Data flow a cai tier vett trn 36 50 66 Data flow control faX an a loot 27 Data iae oed ob OI Di 10 114 Data packet repetitions 72 13 E eter we 34 61 67 Default configutdtiOni suat tin 32 37 Did OMOSTICS sen uns aa aea 29 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Dial en M ER PEE EE 34 Direct DOS unten 46 64 Disconnection pea apap ov A 38 p pe ETE 114 DSR aos n
93. icroLink ISDN TLV 34 Manual 1997 ELSA GmbH 17 Installation 9 NOTE For example to enter the parameters for the National ISDN 1 protocol 2 B channels the following commands must be entered ATHSPID1 0156596200 For the 1 B channel ATHDN1 5659620 For the 1 B channel ATHSPID2 0156596210 For the 2 B channel AT4DN2 5659621 For the 2 B channel No SPID is necessary for the AT amp T 5ESS Custom point to point configuration so type AT IS PID1 and AT IS PID2 Each SPID can only be used one at a time Do not attempt to use one SPID with two ISDN devices simultaneously This will result in a malfunction This completes the installation procedure 3 4 Installation under Windows 95 Installation 9 NOTES 18 To install your MicroLink ISDN TLV 34 under Windows 95 follow the instructions given here Start Windows 95 Switch on your M icroLink ISDN TLV 34 From My Computer call the following menus Control Panel Modems Activate Don t detect modem will select it from a list Click on Have Disk then Browse for your floppy drive or CD ROM drive a or d respectively Select the file M DM ELSA INF e g D After copying this file the installation is complete and the ISDN terminal adapter M icroLink ISDN TLV 34 is available for use The standard software under Windows 95 e g Microsoft Exchange HyperTerminal etc has direct access to your M icroLink ISDN TLV 34 MicroLink ISDN TLV 34 Ma
94. in 30 seconds the called side cancels the primary connection see Register 175 The CONNECT result code does not appear until the secondary connection is established If the secondary connection fails for example if the network is busy the calling side tells the answering side that the second B channel will not be used and establishes a one channel connection with 64 000 bps or 56 000 bps instead Dynamic channel With this method the secondary connection is established when the bundling throughput limit defined in Registers 176 and 177 is reached refer to page 79 If a secondary connection establishment fails it retries the connection every 15 seconds as long as the reason for the secondary connection is valid To use your MicroLink ISDN TLV 34 in the US please observe the programming of SPID and DN configurations as explained under in the US M odels section of the Installation chapter see page 17 26 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 5 7 Fax Operation The MicroLink ISDN TLV 34 can send faxes to and receive faxes from conventional analog fax machines The software supplied is capable of convenient faxing at speeds from 2400 bps up to 14 400 bps half duplex in V 17 V 33 V 29 or V 27ter mode 5 7 1 Fax Command Sets The following sections describe the fax command set compatibility Class 2 Class 2 0 The MicroLink ISDN TLV 34 complies with the fax command set TR 29 2 Class 2 SP 2388 and TR 29
95. instructs the M icroLink ISDN TLV 34 to operate in accordance with the ITU T standard V 8 modems complying with this standard automatically adapt themselves to the transmission bit rate of the other party If the remote modem does not support V 8 your M icroLink ISDN TLV 34 automatically tries to adapt its bit rate according to ITU T V 100 amp N Channel bundling ISDN operation only AT amp NO Disable channel bundling AT amp N1 Enable channel bundling The AT amp N command enables or disables channel bundling You can use channel bundling to achieve a higher data throughput The protocol used for channel bundling is manufacturer specific Large amounts of data are distributed to both B channels in equal parts This way the full transmission bandwidth provided by an ISDN Basic Rate Interface can be used The default setting disables channel bundling c1 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 4 Operation AT amp N1 enables enable channel bundling Channel bundling can only be used if the error corrected X 75 protocol is selected If the remote side does not support channel bundling the M icroLink ISDN TLV 34 automatically falls back to a one channel V 120 or V 110 connection o NOTE o Using a second B channel causes additional costs see Register 5175 page 78 N Operating mode The AT N command selects the M icroLink ISDN TLV 34 operating mode The following table shows the various modes that can be enabled
96. iple of the physical transmission bit rate European Telecommunications Standards Institute This standardization committee has developed a European standard for the D channel protocol DSS1 20551 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Firmware FOSSIL 1 430 1 463 1 465 ISDN ITU T MSN Multiple Subscriber Number National ISDN 1 NI 1 NT Parity bit Appendix Glossary Firmware means the totality of control software integrated with the hardware of a device which cannot be modified by the user Fido Opus SEAdog Standard Interface Layer was developed for the use of hardw are independent interfaces in data communications and is supported by many standard communications programs e g Telix Telemate Frontdoor or Binkly This ITU T standard describes layer 1 of the user network interface of an ISDN Basic Rate Interface V 110 V 120 Abbreviation of Integrated Services Digital N etw ork The Telecommunications Standardization Sector of the International Telecom munications Union ITU is working on the standardization of data and telephone services The ITU T standards of the V series mainly deal with data transmission across telephone networks while the and Q series are standards for the ISDN The ITU T is the successor organization of the CCITT Comit Consultatif International T l graphique et T l phonique Multiple Subscriber Number The DSS1 protocol allows sever
97. isplay Service Profile ID SPID DTE rate independent of connection bit rate y1 Connection bit rate defined by DTE LO L1 Load speaker volume low Load speaker volume low Loud speaker volume medium Load speaker volume high 92 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix AT Commands in Brief V 110 line bit rate adaption in ISDN mode Partial line bit rate adaption in modem mode V 110 line bit rate adaption in ISDN mode V 100 line bit rate adaption in modem mode No line bit rate adaption connection will be broken in ISDN mode No fallback in modem mode V 110 line bit rate adaption in ISDN mode V 100 line bit rate adaption in modem mode Loud speaker off Loud speaker on while dialing and waiting for answer tone Loud speaker always on Loud speaker on while waiting fort answer tone V 8 bit rate adaption off Word CONNECT result codes independent of AT V No Asynchronous Synchronous conversion Asynchronous Synchronous conversion for point to point protocol on Q0 Enable result codes Q1 Disable result codes Q2 Disable result codes in answer mode QL Disable CONNECT result code after invalid escape sequence No Handshake XON XOFF handshake bi directional CTS handshake unidirectional RTS CTS handshake bi directional XON XOFF handshake unidirectional as Q2 but CTS OFF until connection established as Q3 but CTS OFF until connection established R1 Display register contents one register per line continuous display
98. it rate Register 93 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 93 Default settings are shown in bold no connection established Serial port bit rate 1200 bps Serial port bit rate 2400 bps Serial port bit rate 4800 bps Serial port bit rate 9600 bps 13 serial port bit rate 19 200 bps 21 serial port bit rate 38 400 bps 22 serial port bit rate 48 000 bps 23 serial port bit rate 56 000 bps 24 serial port bit rate 64 000 bps 25 25 serial port bit rate 230 400 bps 5 0 reserved 0 0 data format 8N1 1 data format 7E1 2 data format 701 3 data format 7N2 9 NOTE9 This register is overwritten each time your M icroLink ISDN TLV 34 executes a valid command line that contains the AT command When the command 1 is in effect this register is set to the value of Register S87 bit 0 4 ISDN line bit rate after a V 110 connection has been established 595 Result codes Register 95 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 95 and any equivalent AT commands Default settings are shown in bold 0 5 6 7 9 0 no modified CONNECT result codes 1 indication of error corrected connections 2 indication of error corrected connections and error correction method 8 exte
99. l is detected The contents of Register 1 reset to zero when the call is accepted or withdrawn 62 Escape character Range 0 to 127 decimal Default value 43 Storage in nonvolatile memory AT W Register S2 specifies the ASCII value of the Escape Character This is the character you type three times to switch from Data M ode to Online M ode while maintaining the connection with the remote modem The default value 43 is equivalent to the ASCII character You can change this register to any value from 0 to 255 Values greater than 127 disable the escape feature preventing you from returning to the Command M ode If you will be automatically answering calls you may want to either disable the Escape Characters or set them to a value other than that used by the originating modem so that the use of the escape sequence by the calling computer won t make your computer switch to Command M ode If you disable the Escape Characters you can return to Command M ode by having the remote modem hang up or by having an ON to OFF transition of the Data Terminal Ready DTR interface signal occur with the amp D1 amp D2 or amp D3 command in effect S 3 Carriage Return character Range 0 to 127 decimal Default value 13 Carriage Return Storage in nonvolatile memory AT W Register 53 specifies the ASCII value of the carriage return end of line character This is the character that you use to end the command line and also the character
100. le during dialing H After the M icroLink ISDN TLV 34 is reset using either the Reset button described on page 25 or the ATZ command described on page 55 5 3 2 Online Mode The MicroLink ISDN TLV 34 automatically enters Online Mode when it makes a data or fax connection with a remote modem fax or ISDN device Data exchange takes place in this mode Commands cannot be entered in Online Mode Typed entries will be treated as data and sent to the remote device To send commands the mode must be switched as described in the next section 5 3 3 Switching Between Modes The situation may arise when a switch from Online Mode to Command M ode is desirable e g to change a register value during a data transfer Using the Escape Characters default value you can switch from Online Mode to Command M ode while preserving the data connection with the remote modem The Escape Characters can be changed using the Register S2 The Escape Characters do not require the prefix AT or the suffix CR A pause is required before and after typing the Escape Characters The number of seconds to wait is defined by Register S12 The default wait time is one second The following example shows how to use the Escape Characters 1 After making a data connection with a remote device wait at least one second 2 Typethe Escape Character three times for example and wait at least one second 3 The MicroLink ISDN TLV 34 enters Command M ode an
101. les cost monitoring S 168 Time period for cost monitoring DSS1 1TR6 Range 0 to 255 days Default value 0 Storage in nonvolatile memory AT amp W or AT W Register S168 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1TR6 protocols This register sets the number of days during which the number of charge units set in Register 167 can be used For example if you set Register S168 to 2 the number of available charge units resets to the value stored in Register 167 every two days The default setting 0 prevents the number of available charge units from being reset to the Register S167 value after the allowed number of units has been used To disable the cost lock set either Register 169 to a value less than 0 or set Register 167 to 0 S 169 Remaining charge units of cost monitoring period DSS1 1TR6 Range 0 to 255 x 10 units Default value 0 Storage in nonvolatile memory no Register S169 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1TR6 protocols This register specifies the number of remaining charge units that can be used in the current cost monitoring period see Registers 167 and 168 When the M icroLink ISDN TLV 34 is turned off and on Register S169 resets to the value of Register S167 To disable a cost lock either set Register S 169 to a value greater than 0 or set Register S 167 to 0 16 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation S 170 Remaining da
102. mand you can store in nonvolatile memory up to three numbers of remote systems allowed access to your system Each number can contain 16 digits 0 through 9 Because the numbers are stored in nonvolatile memory they are preserved when the MicroLink ISDN TLV 34 is turned off reset or reinitialized The numbers are automatically recalled the next time the M icroLink ISDN TLV 34 is turned on When you store at least one number stored in the closed user group list and an incoming call is received the call is reported but only accepted if the number of the remote system is in the closed user group list If no number is in the closed user group list all calls are reported If the Bearer Capability and MSN DSS1 Multiple Subscriber Number EAZ 1TR6 terminal selection digit or DN US protocol are valid the call is accepted o You cannot include other commands on the same command line with this command The following examples show how to use this command to specify a closed user group f the Remote Station is in Enter Example our branch exchange The PBX extension number 1800 1TR6 with EAZ if applicable dialing code country dialing code set display originator M SN 0551 AT ICLI s Store originator MSN s AT CLin Clearoriginator MSN n AT ICLI Clear originator MSN suppress display to remote side AT ICLI Display stored originator MSN 1 These functions only work if supported b
103. mand input in at n3 Nv8 sO one command line 000 OK For better legibility the individual commands can be separated by blank spaces Observe the following guidelines when typing AT commands Correcting a typing If you make a mistake when typing an AT command press the Backspace mistake BS key to delete the error You can delete every character on a command line except AT Enhancing readability enhance readability you can include spaces and punctuation marks such as parentheses and hyphens in your command line For example ATD 1 513 555 1212 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 23 Operation Omitting a parameter Including other commands Re executing a command line 9 NOTE9 Spaces and punctuation marks have no effect on command execution but they do count toward the 255 character maximum Some AT commands require a numeric parameter such as 0 or 1 Omitting this parameter results in the default value of 0 being used The ATV command for example requires a parameter of 0 to enable numeric result codes or 1 to enable word result codes If you type ATV but fail to include a 0 or 1 the VO command 15 assumed enabling numeric result codes If your command line includes a Dial ATD or Reset command ATZ any other accompanying commands should be in front of the ATD or ATZ command For example AT M3 X5 V1 01 513 555 1212 To repeat the last command line executed type A while omitting AT
104. means carriage return and BS means backspace In this manual the interface between the ISDN Network Terminator NT and the M icroLink ISDN TL V 34 is referred to as the S interface or So bus In the USA this interface is also known as the S T interface ELSA MicroLink products are subject to continual development It is therefore possible that slight variations between the printed documentation and the latest release may arise However you will always find the latest information in the Support BBS ELSA ONLINE the ELSA Internet WWW site and Compuserve see page 109 Please make sure that your package contains the following items ELSA M icroLink 9 ISDN TLV 34 terminal adapter External power supply AC adapter ISDN S line connection cable RS 232 V 24 serial cable 9 pin to 25 pin adapter Disks and or CD ROM with application software Printed manual If any item is missing or damaged please contact your dealer ELSA reserves the right to change package contents without prior notice MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 5 Introduction Notes 6 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Brief Description 2 Brief Description Congratulations for purchasing the M icroLink ISDN TLV 34 terminal adapter the most versatile ISDN communications device available The MicroLink ISDN TLV 34 integrates state of the art ISDN digital technology with high speed analog modem and facsimile capabilities i
105. mission protocol 116 Point to Point Protocol This is a transmission protocol for carrying network packets such as Internet etc to the end user Link between Basic Rate Interface and terminal device Up to eight ISDN terminal devices can be operated simultaneously on one S bus and up to 12 connection sockets can be connected to the bus Service Profile 0 valid for US point to multipoint protocols only is an identifier for each B channel The SPID must match to the Directory Number see DN for a connection to be established gt 5 bus Synchronous transmission is like asynchronous transmission a method to synchronize transmitter and receiver Unlike asynchronous transmission in this method of data transmission the synchronization is not achieved by start and stop bits for an entire character but by clock pulses for each single bit Due to the elimination of the additional start and stop bits synchronous transmission is faster but also requires a considerably greater technical effort T 70NL is a data packet header used in the transmission standard X 75 The T 70NL header must be enabled or disabled on both ends of the transmission Terminal adapter TEI Terminal Endpoint Identifier is an identification code negotiated with the exchange in the D channel protocol in order to distinguish several terminal devices connected to the same S interface MicroLink TL V 34 has a green LED that indicates whether a
106. mple to choose transmission parameters or to start a data transfer Download Upload a suitable communications software also called terminal program is needed Such a program emulates an intelligent terminal on the PC i e a simple input output device equipped with additional features for saving received data and transmitting stored data All ELSA MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 113 Appendix Glossary Control channel D channel Data channel Data format DN DSS1 EAZ Effective transfer rate ETSI Euro ISDN 114 MicroLink products supporting the command set are shipped with the communications program Telix ISDN signaling channel also called D channel for the transmission of control data e g message about incoming call etc between the ISDN interface and the public exchange In Europe the bit rate of a D channel is normally 16 000 bps while the data channels use 64 000 bps in the US also 56 000 bps Control channel ISDN transmission channel also called B channel for the transmission of data with a transmission rate of 64 000 bps in the US also 56 000 bps To allow a data exchange between two stations in asynchronous transmission the parties must agree on the length and structure of the bytes to be transferred This specification is called data format The most common data formats for asynchronous transmission are 8N1 1 start bit 8 data bits no parity bit a
107. n protocols ensuring error free data transmissions even over noisy telephone lines with analog modems that also support these protocols m The MicroLink ISDN TLV 34 supports the V 42bis and MNP 5 data compression protocols ensuring the fastest data throughput possible with analog modems that also support these protocols The M icroLink ISDN TLV 34 provides analog facsimile capabilities for sending faxes to and receiving them from Group 3 compatible facsimile machines and fax modems at speeds up to 14 400 bps If the remote device cannot operate at 14 400 bps your MicroLink ISDN TLV 34 automatically falls back to the maximum speed supported by the remote device MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Brief Description 2 13 Transfer Modes The M icroLink ISDN TLV 34 can automatically switch among the ITU T V 110 ITU T V 120 and 75 protocols to match the protocol of and establish a data connection with remote systems This section describes these protocols and the various transfer modes that the M icroLink ISDN TLV 34 supports V 110 V 120 X 75 Automatic protocol detection Bit rate adaptation T Online The MicroLink ISDN TLV 34 can operate in accordance with ITU T V 110 1 463 providing asynchronous transfer rates of 1200 to 38 400 bps and synchronous transfer rates of 1200 to 64 000 bps The MicroLink ISDN TLV 34 supports the international ITU T standard V 120 1 465 at 56 000 and 64 000 bps This fea
108. nchronous no parity bit 64 1 7 bits character asynchronous no parity bit 128 2 6bits character asynchronous no parity bit 192 3 5 bits character asynchronous no parity bit S 174 ISDN modem operation Register 174 can be used to switch between ISDN and modem operation You can use the ATDI and ATDN commands to overwrite the connection type specified by this register The contents of Register 174 can be stored in the nonvolatile memory using the command AT amp W or AT W Default settings are shown in bold 0 1 0 0 z accept ISDN calls 1 1 accept modem calls 2 2 acceptISDN and modem calls 2 3 0 0 outgoing ISDN call 4 1 outgoing modem call 8 2 place ISDN call initially if an error occurs place a modem call 47 0 reserved 6175 channel bundling 78 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation Register 175 controls additional settings for B channel bundling The contents of Register 175 can be stored in the nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 175 Default settings are shown in bold Bit Dec Meaning S O 2 0 static channel bundling second B channel always active 1 dynamic channel bundling second B channel only active when needed 1 connection hold time starts with each charge unit 0 secondary connection with the same number as primary connection 1 1 secondary connection with the s
109. nd 1 stop bit 10 bits per byte and 7E1 1 start bit 7 data bits 1 parity bit even parity and 1 stop bit 10 bits per byte The Directory Number valid for US point to multipoint protocols only Each B channel requires an extension number under which it can be reached by other ISDN devices See also SPID A European standard developed by the ETSI for the gt 0 channel protocol also called Euro ISDN In Germany this standard has been introduced in 1993 and is likely to replace the older national 1TR6 protocol For an intermediate period ISDN interfaces in Germany will support both protocols The Endger teauswahlziffer German for Terminal Device Selection Digit is used by the 1TR6 protocol to distinguish between several terminal devices connected to the same ISDN Basic Rate Interface Unlike the M SN the DSS1 protocol this digit is appended to the ISDN number as the last digit The effective transfer rate must be distinguished from the transmission rate The transmission rate indicates the number of bits per second physically transmitted over a data line as a theoretical maximum value whereas the transfer rate is a measure of the average amount of transmitted utilizable data per time Control data and protocol headers which are to be sent in addition can reduce the effective speed of transmission On the other hand using data compression methods can result in an increase of the effective transfer rate to a mult
110. nformed immediately On discovery of damage which is not externally visible the transport company and ELSA are to be immediately informed in writing at the latest within 7 days of delivery C Only authorized ELSA dealers may accept warranty claims ELSA will supply the purchaser with a list of names and addresses of authorized dealers on request d Transport to and from the location where the warranty claim is accepted and or the repaired device is exchanged is at the purchaser s own risk and cost e Warranty claims are only valid if a copy of the original purchase receipt is returned with the device 4 Suspension ofthe warranty All warranty claims will be deemed invalid a if the device is damaged or destroyed as a result of acts of nature or by environmental influences moisture electric shock dust etc b if the device was stored or operated under conditions not in compliance with the technical specifications c if the damage occurred due to incorrect handling especially to non observance of the system description and the operating instructions d if the device was opened repaired or modified by persons not authorized by ELSA e if the device shows any kind of mechanical damage f if in the case of an ELSA Monitor damage to the cathode ray tube CRT has been caused by mechanical load e g from shock to the pitch mask assembly or damage to the glass tube by strong magnetic fields near the CRT colored dots on the scr
111. nk ISDN TLV 34 Manual 1997 ELSA GmbH 5 Operation AT V8 Comprehensive CONNECT result codes With the AT VO setting messages reporting a successful connection are always displayed in the format CONNECT xxxxx where xxxxx is the ISDN line bit rate of the connection With AT 1 messages reporting a successful error corrected connection are displayed in the format CONNECT xxxxx REL With 2 the ISDN terminal adapter also reports the error correction method used for example CONNECT xxxxx REL LAPB With AT V8 detailed connect messages are displayed for example CONNECT xxxxx ISDN V110 An overview of all possible CONNECT messages can be found in section 5 12 page 83 9 NOTE9 If MicroLink ISDN TL V 34 is configured to ATXO or AT M1 the AT V command has no influence on the verbose CONNECT messages amp W Save current configuration profile AT amp Wn Save configuration profile n n 0 or 1 The AT amp W command lets you store two configuration profiles in the MicroLink ISDN TLV 34 s nonvolatile memory The n is either the number 0 or 1 and corresponds to a particular profile Because these values are stored in nonvolatile memory they are preserved when the M icroLink ISDN TLV 34 is turned off reset or reinitialized they are automatically recalled the next time the M icroLink ISDN TLV 34 is turned on The following list shows the commands and registers whose values can be saved in nonvolatile memory using the AT amp W command
112. nnel Range 0 to 255 repetitions per 250 data packets Default value 0 Storage in nonvolatile memory no Register 5156 15 a read only register that shows the ratio of transmission errors received on the control channel D channel per 250 data packets that is how many 250 data packets had to be repeated To return this register to a value of 0 turn your M icroLink ISDN TLV 34 off and on MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 73 Operation S 157 Data packet repetitions sent on D channel Range 0 to 255 repetitions per 250 data packets Default value 0 Storage in nonvolatile memory no Register 5157 15 a read only register that shows the ratio of data packet repetitions sent on the control channel D channel for every 250 data packets that is how many 250 data packets had to be resent due to transmission errors To return this register to a value of 0 turn your M icroLink ISDN TLV 34 off and on S 158 Current last B channel Register S158 is a read only register that shows which B channel is currently being used or has been used last 000 no connection has been established 001 current last connection on B channel 1 002 current last connection on B channel 2 S 159 S interface status Register 159 is a read only register that shows the current status of the ISDN 5 interface 0 0 lt no power on S bus detected 1 1 normal or restricted power condition on S bus reserved 1 0 S bus not activated 4 1
113. nsive CONNECT result codes ELSA standard 0 CONNECT result codes with bit rate depends on 1 CONNECT result codes without bit rate 0 CONNECT result code after invalid escape sequence 1 no CONNECT result code after invalid escape sequence 70 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 6 7 0 0 result codes enabled ATQO 64 1 result codes disabled ATQ1 128 result codes disabled in answer mode ATQ2 S 96 AT command interpreter Register 96 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 96 Default settings are shown in bold Bit Dec Meaning O 2 0 message Press any key to continue enabled 1 message Press any key to continue disabled 3 4 0 German user interface default for European version 1 English user interface default for US version 2 reserved 3 reserved 5 6 0 io aeo o O o l 7 0 0 disable error result code for access of invalid or protected S register 128 OK 1 enable error result code for access of invalid or protected S register ERROR S 151 D channel protocol configuration Register 151 controls settings for the ISDN D channel The contents of Register 151 can be stored in the nonvolatile memory using the AT W command The individual bits have the following meaning Bit Dec Meaning
114. nto a single convenient desktop device This unique Synergy makes the M icroLink ISDN TLV 34 the perfect high speed solution for all digital and analog communications requirements B Asan ISDN device the MicroLink ISDN TLV 34 supports data transfer rates up to 115 200 bps across digital communications lines For increased data throughput the M icroLink ISDN TLV 34 Supports V 42bis data compression for effective transfer rates up to 230 400 bps as recognized at the computer serial interface This makes the M icroLink ISDN TLV 34 ideal for access to the Internet corporate local area networks and on line information systems Asa high speed analog modem the M icroLink ISDN TLV 34 adheres to the international V 34 and V Fast standards V 32bis V 32 V 22bis V 22 V 21 V 23 V 42bis and MNP5 so ensuring worldwide compatibility with current analog modems at speeds from 300 to 33 600 bps 42 and 4 error correction guarantee error free and V 42bis and MNP 5 data compression ensure maximum data throughput MicroLink ISDN TLV 34 uses the V22bis and V 21 for transfers at 300 to 2400 bps Asahigh speed facsimile machine faxes can be exchanged with Group 3 compatible facsimile machines and fax modems at speeds up to 14 400 bps In addition the M icroLink ISDN TL V 34 supports fax polling allowing the preparation of documents for retrieval by remote facsimile machines These state of the art features maximize communications activiti
115. nual 1997 ELSA GmbH Status Display and Fault Diagnosis 4 Status Display and Fault Diagnosis The M icroLink ISDN TLV 34 has 11 front panel LEDs for status display M icroLink ISDN TL V 34 is turned on and receiving power Status OFF No S current S bus inactive see Note FLASHING Negotiation in process ON ISDN line active connection to ISDN exchange OFF No incoming call or connection Slow flash Incoming call received but call is not suited to device 1 per second 2 or 3 times Fast flash Incoming call not yet accepted 3 times per second ON Connection is being established M icroLink ISDN TL V 34 is receiving either data from the remote system or a command from your computer M icroLink ISDN TL V 34 is sending data to the remote System or a result code to your computer TxD D1 RxD D2 DTR S1 Terminal computer ready for operation see the AT amp D command on page 36 DSR M 1 M icroLink ISDN TL V 34 is ready for operation see the AT D command on page 36 RTS 52 Sending device is enabled see the AT Q command on page 50 CTS M 2 M icroLink ISDN TL V 34 is ready to send data see the AT D and AT Q commands on pages 36 and 50 DCD M 5 Red V 110 V 100 or PPP connection established no error correction or fax connection Green V 120 X 75 MNP 4 MNP 5 V 42 bis connection established error corrected connection Orange Channel bundling is enabled See also the AT amp C command on page 3
116. nual 1997 ELSA GmbH 4 Operation AT N2 An attempt is made to establish an error corrected connection with MNP The connection will fail if the remote modem does not support M NP AT N3 AT N7 default AT N8 AT N9 and AT N10 An attempt is made to establish an error corrected connection If this is not possible the modem falls back to normal mode AT N4 A V 42 connection will be established In case of failure the connection will be broken AT N5 A V 42 connection will be established In case of failure an automatic fallback to a physical connection results AT N6 A V 42 connection will be established In case of failure the modem attempts to establish a M NP connection If this also fails the connection will be broken Return to Online Mode ATO Once your MicroLink ISDN TLV 34 connects with a remote modem and enters Online Mode it can return to Command Mode and keep the data connection when you issue the Escape Characters or when it detects an ON to OFF DTR transition with the amp D1 command in effect You can then use the ATO command to return to Online M ode This command also instructs your M icroLink ISDN TLV 34 to automatically dial a telephone number stored with the ATDn command by typing ATO and pressing cR when there is no data connection with a remote modem ATOLis similar to the ATO command except your M icroLink ISDN TLV 34 performs a retrain before re entering Online M ode Use this command if the
117. oLink ISDN TLV 34 tries to establish an error corrected connection to the German T Online service number 01910 In this mode all Btx pages CEPT and KIT graphics pages of T Online can be displayed with a Btx decoder program for example ELSAbtx or a KIT decoder respectively With AT N10 the MicroLink ISDN TLV 34 attempts to establish a non error corrected HDLC transparent connection This mode requires the PPP conversion see page 33 9 NOTE9 The automatic switching between bit rates of 56 000 or 64 000 bps works with any X 75 and V 120 variant see also Register 5163 and 5164 page 75 In modem operation settings AT N6 and greater will be treated as AT N3 Should the settings ATB24 ATB25 or ATB26 be in use then you should use 7 The following table shows the types of connections which can be established between your M icroLink ISDN TLV 34 and an analog modem V 42 MNP normal direct This command selects the error correction method to be used if required Other relevant commands include AT C data compression see page 34 The commands AT NO and AT N1 disable data compression AT NO Normal mode 15 selected This is a physical connection without error correction AT N1 Direct mode selected This physical connection has data buffering or data flow control handshake This type of operation is not possible with V 34 or V Fast Classes in which case the normal mode is used MicroLink ISDN TLV 34 Ma
118. ominal 36 66 67 DS RCD RS terrse hec d 36 52 DSS LPrOlOCOl dais tni ete au acento dos 105 114 0551 protocol selecting 8 41 103 DIEA tera oed eb Ped ns 43 DTR NE U 61 DTR ce c ras 35 Dae age ech Lyle io tret he n 35 63 Dumb MO css o spain eU auti fied 38 BI sand 62 Dynamic channel bundling 26 78 ananas ne 114 EAZ digit setting and displaying 42 Grass totiens Loeb re ND Bd 36 60 Effective transfer rate 114 ELSA ONLINE uoi sod Stute 109 110 Fe 83 Error COES niema nanmin pananim 12 99 Escape character amende 58 Escape prompt delay 60 Establishing a connection ss 34 aset 114 EU OS dede 105 114 Euro ISDN selecting sise 8 41 103 Extended configuration ss 54 Factory CONTIQUEAL ON s qi crc irr oet eR ote 37 FallDat Kio diastolic tans 46 47 64 Fax CONMECLON 69 MS 27 9 WM M PRETI 11 39 53 115 FOSSES en 115 Glossa ne aie 103 113 GO ELS hs dans 110 112 Guard LONG 38 61 64 aca than 62 71 Half duplex simulation 67 HARAS RARE nsc 50 66 106 107 Handshake m th d fax s ss 27 Hang up after carrier loss 59 Hato tese Dobson
119. on about the configuration of many applications for the use with ELSA M icroLink ISDN terminal adapters Please first make sure that you are using the latest software and driver versions The latest versions are always available for download in the ELSA ONLINE Support BBS and in ELSA s CompuServe forum Here you will find lots of information and answers to frequently asked questions FAQs The ELSA ONLINE Support BBS has been established as a service for customers and other persons interested in ELSA products ISDN products modems and graphics boards The Support BBS is divided into product specific forums which are structured similar to file directories In these forums you can exchange experiences with other users and ask questions to the ELSA Support team Furthermore the Support BBS always holds latest product information examples and application software MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 9 ATTENTION 0 Login screen of ELSA ONLINE 9 NOTE 0 Registration 9 NOTES MicroLink ISDN TLV 34 Appendix Product Support Please pay attention to the forum structure of ELSA ONLINE If you have a question please always choose the appropriate forum for example the ISDN forum if you have questions about an ISDN product This facilitates our Support work and guarantees that your question is answered as soon as possible After connecting to the ELSA Support BBS you will see the following opening screen Connect
120. on and possible solution 5154 5 155 51 012 channel layer 3 disconnection 051 128 V 110 transfer frame of the remote side not In V 110 mode with automatic bit rate recognized adaptation in answer mode AT L1 the bit rate of the caller must be lt your own bit rate 051 129 V 110 transfer frame of the remote side Re establish the connection aborted 051 133 Invalid V 110 bit rate E bits A connection could not be established because the V 110 bit rate used by the remote 051 134 V 110 bit rate E bits not supported side is not supported Contact the remote side and agree on a bit rate supported by both sides establishment have no effect 051 144 The remote side is not V 42bis compatible decoded Restart the transfer without data compression rror messages from ISDN valid for ITR6 protocols 052 000 Try to call again specified or reason not translatable 052 128 Normal disconnection Both sides have terminated the connection properly 052 131 Service not available on local or remote side Checkthe remote number and the availability or wrong number of the desired services this applies also to private branch exchanges 052 138 Own line busy Your line is occupied by other terminal devices Terminate other connections first 052 144 Semi permanent connections not supported by Apply to your network operator for semi the network permanent connections 52 145 Requested service not available Apply to your netw ork operator for
121. on n using the command Example ATS 0 CR L Redial the last number Example ATDL lt CR gt SSS E EM In nonvolatile memory store the digits preceding the semicolon and dial them when an ATO command is executed without a data connection 1186 protocol Dialing code for external calls valid for some private ISDN branch exchanges 0551 protocol Sending Complete additional information required for dialing in some European countries Pt OO N Establish an ISDN connection Establish a modem connection If ATO is entered several times in succession all the digits up to 36 are concatenated An ATH command or an attempt to establish a connection clears the entire string of digits D automatic dialing with DTR AT DO Disable DTR dialing AT D1 Enable DTR dialing The default setting AT DO disables Data Terminal Ready DTR dialing If you use the AT D1 command to enable DTR dialing and an OFF to ON DTR transition occurs your M icroLink ISDN TLV 34 automatically dials the number stored in memory position 0 with the AT P or AT amp Z command refer to pages 48 and 56 If no number is stored in position 0 your M icroLink ISDN TLV 34 returns an ERROR result code MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 35 Operation AT amp Dn n 0 to 3 default 2 These commands determine how the MicroLink ISDN TLV 34 reacts to an ON to OFF DTR transition The action taken depends on the MicroLink ISDN
122. or selecting the appropriate local D channel protocol European models support the DSS1 Euro ISDN and German 1TR6 protocols while US models support the National ISDN 1 protocol NI 1 and AT amp T 5ESS protocols The Point to Point Protocol conversion allows the combination of asynchronous PPP computer software with synchronous PPP ISDN access points e g via Routers The conversion complies with RFC 1662 The MicroLink ISDN TLV 34 can distinguish between incoming 56 000 and 64 000 bps ISDN calls and adjust its speed accordingly The MicroLink ISDN TLV 34 is compatible with the industry standard AT command set which allows control of the modem either manually as described in this manual or via AT compatible software The European version of the MicroLink ISDN TLV 34 0551 and 1TR6 protocols can monitor ISDN charge information and guarantees that a user defined number of charge units is not exceeded during a specific period of time This feature is not offered by the network providers in some countries 2 1 2 Analog Features Integrated V 34 V Fast modem Integrated send receive facsimile machine The MicroLink ISDN TLV 34 provides V 34 V Fast modem capabilities for exchanging data with analog modems at speeds up to 33 600 bps With slower remote modems the maximum possible data exchange rate will automatically be selected To optimize performance The MicroLink ISDN TLV 34 supports the V 42 and MNP 4 error correctio
123. ort X 75 the connection attempt ends With AT N3 the MicroLink ISDN TLV 34 also attempts an error corrected X 75 connection If the remote side does not support X 75 the MicroLink ISDN TLV 34 automatically falls back to V 110 normal mode With AT N4 the M icroLink ISDN TLV 34 tries to establish an error corrected V 120 connection If this fails the connection attempt ends 46 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation With AT N5 the M icroLink ISDN TLV 34 also attempts error corrected V 120 connection If the remote side does not support V 120 the MicroLink ISDN TLV 34 automatically falls back to V 110 normal mode With AT N6 the M icroLink ISDN TLV 34 tries to establish an error corrected X 75 or V 120 connection with incoming calls Outgoing calls are always treated as an X 75 connection US version V 120 With AT N7 the default setting for the European version the MicroLink ISDN TLV 34 tries to establish an error corrected X 75 or V 120 connection with incoming calls Outgoing calls are always treated as X 75 connection US version V 120 If no connection can be reached the M icroLink ISDN TL V 34 automatically falls back to V 110 normal mode With AT N8 the MicroLink ISDN TLV 34 tries to establish an error corrected connection to the German T Online service number 01910 In this mode all VT 100 pages of T Online can be displayed with a VT 100 compatible terminal program With AT N9 the Micr
124. pite proven proper handling and adherence to the operating instructions these parts became defective due to fabrication and material defects Operating manuals and possibly supplied software are excluded from the warranty M aterial and service charges shall be covered by us but not shipping and handling costs involved in transport to the service station O Replaced parts become property of ELSA e ELSA are authorized to carry out technical changes e g firmware updates beyond repair and replacement of defective parts in order to bring the equipment up to the current technical state This does not result in any additional charge for the customer A legal claim to this service does not exist 2 Warranty period The warranty period is 36 months for color monitors data communications and computer graphics products It begins at the day of delivery from the authorized ELSA dealer Warranty services do not result in an extension of the warranty period nor do they initiate a new warranty period The warranty period for installed replacement parts ends with the warranty period of the device as a whole 3 Warranty procedure a If defects appear during the warranty period the warranty claims must be made immediately at the latest within a period of 7 days b In the case of any externally visible damage arising from transport e g damage to the housing the transport company representative and ELSA should be i
125. result codes They are the same as with AT M 0 86 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation The following table lists the supported result codes in MODEM mode WO Type of Connection independent of transfer rate and protocol CONNECT 300 CONNECT 1200 CONNECT 2400 CONNECT 4800 CONNECT 7200 CONNECT 9600 CONNECT 12000 Transfer rate 300 33 600 bps CONNECT 14400 duplex CONNECT 16800 no error correction data CONNECT 19200 compression CONNECT 21600 CONNECT 24000 CONNECT 26400 CONNECT 28800 CONNECT 31200 CONNECT 33600 CONNECT 75 1200 CONNECT 1200 75 CONNECT 300 CONNECT 1200 CONNECT 2400 CONNECT 4800 CONNECT 7200 Transfer rate 300 bps duplex CONNECT 9600 with M NP or CONNECT 2000 Transfer rate 1200 33 600 CONNECT 14400 bps duplex with M NP or CONNECT 16800 V 42 bis CONNECT 19200 CONNECT 21600 CONNECT 24000 CONNECT 26400 CONNECT 28800 CONNECT 31200 CONNECT 33600 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 87 Operation Type of Connection CONNECT 300 REL CONNECT 1200 REL CONNECT 2400 REL CONNECT 4800 REL CONNECT 7200 REL CONNECT 9600 REL CONNECT 12000 REL CONNECT 14400 REL CONNECT 16800 REL CONNECT 19200 REL CONNECT 21600 REL CONNECT 24000 REL CONNECT 26400 REL CONNECT 28800 REL CONNECT 31200 REL CONNECT 33600 REL CONNECT 300 REL MNP CONNECT 1200 REL MNP CONNECT 2400 REL MNP CONNECT 4800 REL MNP CONNECT 7200 REL MNP CONNECT 9600 REL MNP CONNE
126. rk This device should be disconnected until the source of the problem can be determined and until repair has been made MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 11 Brief Description Notes 12 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 3 Installation Installation This chapter describes installation of the M icroLink ISDN TLV 34 terminal adapter 3 1 Safety Notice To ensure your safety and the proper operation of the MicroLink ISDN TLV 34 and your computer system please observe the following guidelines Use only the original external power supply shipped with your ISDN terminal adapter Refrain from using a power supply that has been opened or mechanically damaged Touching the primary voltage Europe 230 V USA 120 V with the hand or with metal parts results in an electric shock which can be deadly Use only the supplied ISDN S line connection cable to connect your M icroLink ISDN TLV 34 to an ISDN digital communications line Do not touch the metal pins of the MicroLink ISDN TLV 34 connection sockets Even slight dirt or electrostatic discharging may cause malfunctions or in extreme cases damage the device 3 2 System Requirements The following are required for the successful installation of the MicroLink ISDN TLV 34 terminal adapter B AnIBM PC or compatible computer with a 9 25 pin serial communications interface COM port recommended is a 16550 FIFO buffered Universal Asynchronous Receiver Tr
127. rved MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 65 Operation S 48 Bit mapped options Register 48 is a bit mapped register whose ontents can be stored in nonvolatile momory using the command AT amp W or AT W The following table shows the individual bits of Register 48 and any equivalent AT commands Default settings are shown in bold reserved Dec A 0 0 Detect phase off TTE S 0 buffering in the negotiating phase 1 data buffering in the negotiating data phase 16 2 no data buffering falloack character detection reseved 5 7 0 reserved Register 51 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 51 and any equivalent AT commands Default settings are shown in bold 0 no handshake 1 XON XOFF bi directional 2 RTS CTS unidirectional 3 RTS CTS bi directional 4 XON XOFF unidirectional same as 102 but CTS OFF until connection established same as 103 but CTS OFF until connection established XON XOFF characters are not passed to remote station 1 XON XOFF characters passed to remote station 5 7 0 mone 52 ns 232 V 24 signaling lines Register 52 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W The following table shows the individual bits of Register 52 and any eq
128. s If hardware data flow control is enabled AT Q2 or AT Q3 command is in effect this command setting is meaningless for the CTS interface line 36 MicroLinkISDN TLV 34 Manual 1997 ELSA GmbH rm TD D er o E Command echo ATEO Disable command echo ATE1 Enable command echo The ATE command determines whether your M icroLink ISDN TLV 34 echoes the commands you type from your keyboard during Command M ode E Automatic retrain M odem operation only AT E0 Disable automatic retrain AT E1 Enable automatic retrain The AT E command controls whether your M icroLink ISDN TLV 34 automatically initiates a retrain when the line quality deteriorates below a certain threshold that may affect data reliability does not allows your M icroLink ISDN TL V 34 to perform a retrain if the telephone line quality is poor The default setting AT E1 allows your M icroLink ISDN TLV 34 to automatically perform a retrain when necessary and adapt to changes in the telephone line quality amp F Restore factory configuration AT amp F This command loads the MicroLink ISDN TLV 34 s factory default settings returning your ISDN terminal adapter to its original operating parameters This command does not reset the stored numbers cost statistics configuration profiles the ISDN settings or the serial port bit rate DTE 9 NOTE9 If a data connection exists with a remote modem your M icroLink ISDN TL V 34 does not ex
129. s Especially in the microcomputer sector this start stop method is one of the most commonly used transmission methods since unlike synchronous transmission it is comparatively easy to perform The extended AT command set AT command prefix ATtention has become a world wide standard for the syntax of modem control commands To give data communications users the possibility to maintain their familiar command interface when changing over to ISDN ELSA MicroLink ISDN products can be controlled with AT commands as well Data channel ISDN terminal connector providing tw o 4data channels 64 000 bps each and one gt control channel 16 000 bps The link between the Basic Rate Interface and the terminal device is the gt 5 bus Baud abbreviation Bd is the unit for the step rate 1 Bd 1 step per second i e the frequency of status changes on a transmission channel per second Erroneously the unit Baud is often confused with the transmission rate measured in bps In the case of signals having only two states as in the ISDN the step rate is identical with the transmission rate Common ISDN API API Application Programming Interface This is a software interface developed by German ISDN adapter manufacturers in cooperation with the German FTZ which is used for communication between ISDN adapters and ISDN application software ITU T In order to access MicroLink ISDN TL V 34 from a personal computer for exa
130. sab c E absens 38 Hang up reasons ratios ri rts 68 aec 109 Hold TING ennemie nt er 79 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Index RO Rom o opu a occae 115 EE reset EEA A eccle chien oin 115 ro IN 115 Iis E EIVIDY Mers ns Sean is 52 63 Installations ees 13 Intertate ai 36 interferen nsan qaae aera AAN 11 ISDN A anna ANG RME 115 ISDN spezifische Einstellungen 92 MU mcr 33 62 69 115 Last call information about sssieerrrsrn 73 Leased line operation 62 Letzten Befehl wiederholen 32 LOVE Ne sion meas 67 Line bit rate nanas nee 33 37 65 69 Line Feed character 59 Long result codes se 53 MNP o nn a a N 47 MODEM TST abro reta nd beans 105 M SD ant oec to ovd nd dtu 115 MSN of last incoming call 80 MSN originato esaet on toc n roe Dad 40 MSNs setting and displaying 42 Multiple Subscriber Number 115 National ISDN 1 selecting 41 103 Network Tel 115 105 NI 1 protocol selecting 41 103 NO CARRIER net 83 104 105 NO CARRIER message format 72 NO DALTON E sara en ds ats 83 Normal OE nets 46 64 tere e ME 115 Numbers StOTINg ss idonee series reae secius 49 56 qm
131. serial data streams to the ISDN line bit rate of 64 000 bps for the transmission over an ISDN gt channel V 120 also referred to as 1 465 is an gt standard for the packing of asynchronous or synchronous data in error corrected HDLC frames on an ISDN 8B channel Unlike X 75 V 120 also supports a line bit of 56 000 bps as commonly used in the USA The ITU T standard V 42bis describes a data compression method which can increase the effective transfer rate of previously uncompressed data by a factor up to four MicroLink ISDN TL V 34 supports V 42bis Thus effective line transfer rates of theoretically up to 256 000 bps can be achieved if the serial interface supports these high rates This modulation process which was developed by Rockwell in anticipation of the V 34 V Fast standard operates with at variable bit rates between 16 800 and 33 600 bps in steps of 2400 bps Similar to gt V 120 X 75 is an ITU T standard for the error corrected trans mission of data with HDLC frames on an ISDN 5B channel 64 000 bps MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 117 Appendix Warranty Conditions H Warranty Conditions This warranty is given to purchasers of ELSA products in addition to the warranty conditions provided by law and in accordance with the following conditions 1 Warranty coverage a The warranty covers the equipment delivered and all its parts Parts will be replaced free of charge if des
132. store up to 16 characters If no connection has been made or if the last connection originated with an outgoing call no number is issued To clear the contents of this register use the command ATS193 0 AT amp F refer to page 37 or ATZ refer to page 55 S 229 Byte order for saved voice data Valid values 0 or 1 decimal Default value 0 new method Storage in non volatile memory AT W ee MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 8 Operation Register 229 controls the order in which bytes of recorded voice data are saved and played The default setting 0 selects the new method Use this method if the older method causes voice files to sound distorted To reverse the byte order use the command ATS229 1 You can use the AT W command to save this register setting in nonvolatile memory or include the command in the initialization of your voice program 9 NOTE9 The AT amp F command does not reset the value of Register 229 to the factory default 82 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation S 230 Voice option Register 230 controls the voice output from your M icroLink ISDN TLV 34 With voice data the best results are achieved via a PC soundcard Even without a soundcard incoming messages can be replayed via the MicroLink ISDN TLV 34 s in built loud speaker although with limited audio quality The contents of Register 178 can be stored in the nonvolatile memory using the command AT amp W or AT W
133. t 6 of register 14 to 1 allow polling during connection establishment Connection establishment aborted the bit rate The AT B command is only effective in V 110 set with AT B or in 537 cannot be used mode The bit rate set with AT B must not be higher than 38 400 bps Remote side has withdrawn the call or other ATA or ATO terminal device has accepted the call Germany only 001 005 Entering ATZ in the command state in an existing connection terminates the connection Inactivity time elapsed disconnection The time in which no more data were sent has exceeded the value set in register 30 or with command 001 007 The DTR signal line was dropped possibly by the communications program Cost limit set in register 167 exceeded Check the values of the registers S167 to S170 Switching the ISDN terminal adapter off and on will reset the registers Local errors 051 001 Check the cable connection to the ISDN So socket and disconnect other ISDN devices from the So bus to exclude possible error sources Testthe terminal adapter directly at the NT Network Terminator side 051 005 D channel layer 1 disconnection Check the cable connection to the ISDN So socket and disconnect other ISDN devices from the So bus to exclude possible error sources Testthe adapter board directly at the NT Network Terminator AT IDP MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 99 Appendix Error Codes Error codes Reas
134. t available Check the remote number and the availability of the desired services this applies also to private branch exchanges 52 138 B channel not available Wait and try to reconnect 052 145 Check the SPID number terminal 052 181 Wrong remote number service or service Check the remote number and the availability attribute of the desired services this applies also to private branch exchanges 52 184 Remote number has changed Ask forthe new number of the remote side 052 185 Check whether the remote side is ready for operation 052 186 Check whether the remote side is ready for operation and check the M SN or EAZ used 52 187 Try to call again later 52 190 Contact the remote side 52 217 Try to call again later 52 241 Try to call again 52 255 Unknown error message in the network MLP errors channel bundling 065 001 M LP block error The remote side is not ELSA M LP compliant Re establish the connection without channel bundling 065 002 M LP disconnection primary connection The primary connection was aborted before aborted the secondary connection Possibly wrong behavior of the remote side MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 101 Appendix Error Codes Additional to the registers 5154 5155 error codes indicating the source of problems with 0551 Euro ISDN connections can be read using the register 165 This register offers a detailed insight into the cause of errors 5165 Error 006
135. ta compression protocols the serial port bit rate defined in the communications software should normally be set higher than the ISDN line bit rate for example 115 200 bps instead of 64 000 bps However this rate requires either a hardware handshake RTS CTS or software handshake XON XOFF flow control method The same handshake method must be set in both your MicroLink ISDN TLV 34 and communication software Otherwise CRC errors are likely to occur in data transfers If you use RTS CTS handshake you may have an improperly configured serial interface cable If you use an RS 232 V 24 adapter from 25 pin to 9 pin also called mouse adapter the RTS and CTS lines pins 4 and 5 may not be connected M ake sure you use an RS 232 V 24 adapter with all lines connected Another possible error source is the serial interface of your computer At bit rates of 19 200 bps and higher under DOS and generally under Windows or 05 2 you should use a high speed 16550 UART chip This UART is equipped with a 16 byte FIFO buffer allowing considerably higher transfer rates than 8250 and 16450 UARTs which are reliable up to 9600 bps At rates of 19 200 bps and higher these UARTs may lose characters and will thus cause CRC errors 05 2 Issues When using Telix for DOS or the communications program ZOC in a DOS box under 05 2 frequently get CRC errors When run Telix directly under DOS no errors occur am using a 16550 UART so the UART type cannot b
136. telephone line quality has deteriorated 9 NOTE9 Your MicroLink ISDN TLV 34 does not execute any other commands that appear on the same command line with ATO P Asynchronous synchronous conversion for PPP asynchronous synchronous conversion for point to point protocol AT P1 Enable asynchronous synchronous conversion for point to point protocol The AT P command enables or disables point to point protocol asynchronous synchronous conversion This conversion lets you use an ISDN Internet access with a standard TCP IP application package such as Internet Chameleon from NetM anage or the Windows 95 Internet Explorer which require a transparent synchronous point to point protocol Enabling this command requires the setting of the HDLC transparent mode or X 75 depending on the opposite receiving sending device with the commands 10 or AT N2 The default setting disables point to point protocol asynchronous synchronous conversion P Store numbers 48 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation AT Pmn The AT P command lets you store up to 10 ISDN numbers in the M icroLink ISDN TLV 34 s nonvolatile memory In this command m The m indicates a number from 0 to 9 that corresponds to the memory location where the number will be stored nindicates the number to be stored and can contain up to 36 digits For example to store the number 5551212 in location 4 type ATP 3555
137. ter 564 the transmitted signal strength can be set The value 10 represents a signal strength of 10 5 dBm 0 2 4 8 0 8 NF Aoc MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 67 Operation S 86 Call failure reason code M odem operation only When your M icroLink ISDN TLV 34 sends you a NO CARRIER result code it stores a value in Register S86 that indicates the reason why the connection disconnected You can read the value of this register to determine the reason for the disconnection If you receive more than one NO CARRIER result code only the first cause will be shown in this register Normal disconnection no error occurred Loss of carrier Negotiation phase failed modem at remote station has no error correction Remote modem is not answering protocol requests Remote modem is only functioning synchronously M odems could not find a common framing M odems could not find a common protocol Remote modem is sending wrong protocol requests Synchronous information data or flags missing connection termination after 30 seconds Normal disconnect initiated by the remote modem Remote modem is no longer answering disconnect after 10 retransmissions Protocol violation Compression error Inactivity time has elapsed No loop current not in the United Kingdom and USA Busy tone detected No dial tone detected No answer tone detected time out S7 No connection reached time out or wrong modulation type Fallback not permi
138. termine the reason for the disconnection by means of the registers 5154 5155 see page First you should contact the dealer or firm where you bought your ISDN adapter board If there are still questions remaining contact one of the follow ing The ELSA ONLINE Support BBS in Germany ISDN 49 0 241 9177 7800 8 data bits no parity 1 stop bit V 110 38 400 1200 bps X 75 X 75 with V 42bis 56 000 bps 64 000 bps V 120 V 120 with V 42bis 56 000 bps 64 000 bps Modem 49 0 241 9177 981 33 600 300 bps 8 data bits no parity 1 stop bit MNP4 MNP5 V 42 and V 42bis MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 109 Appendix Product Support Configuration problems Support BBS 110 M The ELSA forum in CompuServe GO ELSA B The ELSA Internet WWW Homepage http w ww elsa de B Orwrite to ELSA GmbH Data Communications Support Sonnenweg 11 52070 Aachen Germany Fax 49 241 9177 113 In very urgent cases call the ELSA Hotline in Germany Phone 49 241 9177 110 M onday to Thursday from 9 am to 4 30 p m CET Friday from 9 am to 12 p m CET Inthe USA you may also contact the ELSA subsidiary ELSA Inc 2150 Trade Zone Blvd Suite 101 San ose CA 95131 USA Phone 1 408 935 0350 1 800 272 ELSA Fax 1 408 935 0370 BBS 1 408 935 0380 Internet http www elsa com In the ELSA ONLINE Support BBS forum ISDN file area CONFIG and in ELSA s CompuServe forum you will find informati
139. the factory defaults The ATZ or AT amp F command resets the M icroLink ISDN TLV 34 ust type ATZ or AT amp F and press cR MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 25 Operation 5 6 Channel Bundling Channel bundling allows the two B data channels of an ISDN Basic Rate Interface to be bundled into a single high speed logical connection Under ideal conditions channel bundling doubles the effective data throughput of the ISDN connection Realized performance gains however depend on the type of data transferred If channel bundling is enabled AT amp N1 refer to page 45 large amounts of data are distributed equally to both B channels While channel bundling is active the DCD M5 orange LED on the front panel lights up Channel bundling increases line charges because two B channels are used If desired Bit 6 of Register 175 can be set to adapt the establishment of the secondary connection to the ISDN charge information see page 78 The MicroLink ISDN TLV 34 supports two types of channel bundling static bundling and dynamic bundling The settings of register 175 enable either of these channel bundling methods refer to page 78 Static channel With this method the second B channel connection is established as soon as bundling the first primary connection is made The secondary connection remains active until the primary connection ends If the secondary connection cannot be established or is refused with
140. this service 052 160 Outgoing calls locked Ask your network operator to unlock your line for outgoing calls 52 161 Remote side busy Try to call again later 052 165 Semi permanent connection not allowed Apply to your network operator for semi between these stations permanent connections 052 181 Wrong remote number service or service Check the remote number and the availability attribute of the desired services this applies also to private branch exchanges 52 184 Remote number has changed Ask for the new number of the remote side 052 185 Remote terminal device not ready Check whether the remote side is ready for operation 052 186 Check whether the remote side is ready for operation and the remote EAZ or M SN used 52 187 Try to call again later 52 189 Ask the remote side to accept incoming calls 52 190 Contact the remote side 52 217 100 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Appendix Error Codes Error codes Reason and possible solution S154 S 155 052 218 Call refused or disconnected by the remote Try to call again later or contact the remote side side 52 240 Local protocol error Try to call again 52 241 Remote protocol error rror messages from the ISDN valid for DSS1 and US protocols 052 000 Disconnection by the network no reason Try to call again specified or reason not translatable 052 128 Normal disconnection Both sides have terminated the connection properly 052 131 Data transfer service no
141. tion S ISDN bitrate setting V 120 X 75 HDLC AT SO ISDN bit rate 64 000 bps European default AT S1 ISDN bit rate 56 000 bps US default The AT S command lets you set the ISDN bit rate This command sets the values of Register 171 bit 5 and Register 172 bit 7 9 NOTE9 You can use the ATI4 command to view the contents of Register S 171 amp S DSR control AT amp S0 DSR is always active AT amp S1 DSR indicates B channel switched through The AT amp S command controls the Data Set Ready DSR interface line The default setting AT amp SO keeps this line is always ON Use this setting if your communication software requires the DSR signal to be present at all times AT amp S1 instructs your MicroLink ISDN TLV 34 to turn on the DSR signal when it performs the handshaking sequence with the remote modem T Inactivity timer 0 to 255 x 10 seconds default 0 The AT T command determines how long a connection is maintained if no data is sent or received within the time specified here The default value 0 disables the inactivity timer 9 For more information see Register 30 on page 63 52 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH im cet o gt U PX startfirmware upload in Flash ROM ATUPX If your M icroLink ISDN TLV 34 is equipped with Flash ROM firmware the command ATUPX readies the device to receive a firmware update from your PC The firmware
142. tm qu 116 S interface sas numero 13 DO POW BIS eirean 13 Safety InistruCtlOnS vised ecd tr aa 10 Serial lite a e dvo do eni sons 50 Serial number display 39 Serial port DIE Tales os oma mici ttr eiit crearet 10 Se M 109 Se rvic aet vues o ole no 74 Service Profile ID 103 104 Short result codes manie 53 Signal a a 67 43 44 61 ae tope 103 104 116 Static channel bundling 26 78 Store NUMDETS uiae QE QOO A 49 56 Stored numbers display 37 109 SUDDOIt isset ve ettari 109 110 Synchronous operation 62 Synchronous transmission ens 116 TUN ous ossa es rte ito 116 TA H 116 TEL cessante on ia op tete 13 116 TD ous sant haic n 106 107 114 116 122 Tell for W INdOWS cit cem Ele o betta 107 Terminal A ioc rite ato ric 116 Terminal Endpoint Identifier 116 Terminal program du de nt dii 113 Terminate connection eene 38 Throughput averaging time 19 Throughput limit to dados de 78 TIM QUR sesto avus a defen Visites EROS 52 TORING sc cct b auras sense 47 64 107 Transfer fraMe ere nes 105 TESTIS BL Ta ieee etna m Co rt nf 114 Transmission EITOIS in soni tte tts 12 13 Transmission mode 33 Transmission 116 Transmission False net
143. to dial 2 Press CR A typical Dial command line might look like AT D 1213 555 1212 The data connection between your M icroLink ISDN TLV 34 and the remote device ends when any of the follow ing occurs B The MicroLink ISDN TLV 34 loses the carrier signal from the remote modem You return to the command mode type ATH and press cR to hang up B TheMicroLink ISDN TLV 34 detects the drop of the Data Terminal Ready DTR interface signal with the amp D2 or amp D3 command in effect The M icroLink ISDN TLV 34 then hangs up returns to the Command M ode and displays the NO CARRIER result code 9 NOTE9 If the dialing attempt results in a busy signal you can type ATDL and press CR to redial the last telephone number dialed or type A without pressing CR to execute the entire command line again MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 29 Operation 5 9 2 Dialing a Stored Telephone Number To automate your dialing tasks your MicroLink ISDN TLV 34 provides the following methods for storing telephone numbers in nonvolatile memory and dialing the numbers using the fewest number of keystrokes Commend Commands for Storing Telephone Numbers Store 10 telephone numbers in memory AT amp Z2 5552345 lt CR gt m the memory location 0 through 9 n a telephone number up to 36 digits AT amp Z n Store telephone number nin memory location 0 AT amp Z 5551212 cR AT Pn Store telephone num
144. tted because of AT L2 No modem or fax is answering at the number called ATH online ATZ online Hang up caused by loss of synchronisation Hang up caused by clear down sequence No response to automatic resynchronisation 68 MicroLinkISDN TLV 34 Manual 1997 ELSA GmbH Operation S 87 Current Line bit rate Register 87 is a read only register that contains the ISDN line bit rate of the current connection The individual bits of 87 have the following meaning connection established connection 300 bps ISDN or modem connection with 1200 bps ISDN or modem connection with 2400 bps ISDN or modem connection with 4800 bps ISDN or modem connection with 9600 bps M connection 12 000 bps 11 Modem connection 14 400 bps 12 Modem connection 16 800 bps 13 ISDN or modem connection with 19 200 bps 14 Modem connection 21 600 bps 15 Modem connection 24 000 bps 16 Modem connection 26 400 bps 17 Modem connection 28 800 bps 18 Modem connection 31 200 bps 19 Modem connection 33 600 bps 21 ISDN connection with 38 400 bps 22 ISDN connection with 48 000 bps 23 ISDN connection with 56 000 bps 24 ISDN connection with 64 000 bps 0 one channel connection 1 ISDN connection at 128 000 112 000 bps second B channel with 64 000 56 000 bps active 7 0 1 fax connection MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 69 Operation S 93 Serial port b
145. ture allows error corrected data connections with transfer rates up to 230 400 bps asynchronous and ISDN connections with remote stations in the USA The M icroLink ISDN TLV 34 supports X 75 T 70NL Using real time V 42bis data compression in X 75 and V 120 modes the M icroLink ISDN TLV 34 can achieve an effective data throughput of to 230 400 bps The MicroLink ISDN TLV 34 supports V 110 bit rate detection allowing it to establish a data connection using the fastest speed supported by the remote system MicroLink ISDN TLV 34 can also automatically adapt the RS 232 V 24 bit rate to the ISDN line transfer rate without requiring user intervention The M icroLink ISDN TLV 34 can access the German T Online online service in both VT 100 and CEPT KIT modes using the commands 8 and 9 refer to page 46 2 14 Additional Features Asynchronous RS 232 C data port Front panel status display MSN and EAZ support The M icroLink ISDN TLV 34 can be connected to RS 232 C data serial port of an IBM Macintosh or compatible personal computer An IBM compatible serial cable is provided with your M icroLink ISDN TLV 34 Easy to read colored LEDs on the front panel provide information as to the M icroLink ISDN TL V 34 5 status With the European version of the M icroLink ISDN TL V 34 Multiple Subscriber Numbers MSN 0551 protocol or Terminal Selection Digits EAZ German 1786 protocol can be assigned Mi
146. tware AT amp CO forces the DCD signal active ON continuously If your communication software requires the DCD signal to be ON at all times use this setting The default setting AT amp C1 forces the DCD signal to follow the state of the data carrier from the remote modem AT amp C2 drops the DCD signal when a data connection ends D Connection establishment ATDn 34 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation This command tells your M icroLink ISDN TL V 34 to dial the numbers and any special characters that follow D in the command line You can type up to 36 numbers or any of the following special characters after the D When you execute a command line that contains the D command you can cancel dialing by pressing any key on your keyboard except the space bar Your MicroLink ISDN TL V 34 does not execute commands that follow D in the command line To include additional commands on the same command line with the D command have them precede the D command The special characters for dialing stored numbers must come immediately after the command ATD The special characters I N and can be entered at any position 9 NOTE9 The M icroLink ISDN TLV 34 recognizes the type of call being made e g ISDN modem fax or voice and automatically switches to the necessary mode of operation Character Meaning command Example ATDS CR Dial the number stored in nonvolatile memory locati
147. uivalent AT commands Default settings are shown in bold 0 DSR always active CTS always active 1 DSR indicates B channel switched through CTS always active 2 DSR always active CTS follows DCD 3 DSR indicates B channel switched through CTS follows DCD 66 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 0 DCD is always active depending on Register S 21 page 60 AT amp CO 0 DCD indicates existing connection depending on register S 21 page 60 AT amp C1 2 DCD off for 0 5 seconds during disconnection AT amp C2 0 0 DSR always active CTS always active 1 DSR indicates B channel switched through CTS always active 3 6 7 0 0 CTS status determined by 1 CTS follows RTS asynchronous half duplex simulation 128 2 CTS follows RTS after 0 5 to 0 6 seconds S 54 Call indication options Register 54 is a bit mapped register whose contents can be stored in nonvolatile memory using the command AT amp W or AT W Default settings are shown in bold 0 Incoming call indicated by display RINGING 1 call also indicated by acoustic ringing signal 0 lt ringing pattern 1 1 lt ringing pattern 2 2 ringing pattern 3 3 lt ringing pattern 4 0 z volume 0 1 volume 1 2 volume 2 3 volume 3 S 64 Modem transmitted signal strength setting Available values 10 15 x 5 dBm Standard value 10 10 5 dBm Storage in no volatile memory AT W With regis
148. ve an incoming call All of the protocols above are point to multipoint The AT amp T 5ESS protocol also supplies point to point mode In addition M The 1TR6 protocol is supported by the German ISDN only M 055115 used in most European countries and supported in Germany setdisplay EAZ digit ATHEAZ n Store EAZ see table below ATHEAZ Display The AT IEAZ command sets EAZ Endger teauswahlziffer or terminal selection digit and is valid for the 1TR6 protocol German ISDN only Using this command you can append the terminal selection digit to the normal ISDN number in the 1TR6 protocol to distinguish between several devices sharing the same ISDN line Only calls with this EAZ are accepted by the M icroLink ISDN TLV 34 Note however that if you use this command in DSS1 mode it will only take effect after the M icroLink ISDN TLV 34 switches to the 1TR6 protocol This command also determines the EAZ that is displayed to the remote side as the originator number when you place outgoing calls All changes are automatically saved in the non volatile memory and Will stay resident until the next change The following table shows the available settings EAZ accepted in Incoming Calls EAZ sent for display at remote unit in outgoing calls 0 0 0 and 1 through 9 accordingly 1 through 9 accordingly 0 through 9 accordingly 0 through 9 accordingly any 0 IM SN seudisplay accepted MSNs 0581 AT IMSNn s
149. y checksum 2 Display checksum result OK or ERROR ATI3 Display firmw are version and release date ATIA Display current parameter settings ATI5 Display serial number ATI6 Display product name and hardware release ATI9 Display the Plug amp Play ID text The ATI command requests information from your M icroLink ISDN TL V 34 ATIO returns a three digit ASCII string type number corresponding to the modem product code returns a three digit ASCII number corresponding to the checksum of the firmware ROM ATI2 calculates the checksum of the ROM and compares it with the checksum stored in the ROM If both values are identical OK is returned Otherwise ERROR 15 returned ATI3 returns the firmware version number and the firmware date This command corresponds to the AT V command 4 returns the current M icroLink ISDN TLV 34 configuration ATI5 returns the M icroLink ISDN TL V 34 s internal factory serial number 6 returns the M icroLink ISDN TL V 34 s product name 9 returns the Plug amp Play information text TI CLD store numbers for closed user groups AT ICLDn s Store the number n n 1to 3 ATHCLDn Clearthe number n n 1to 3 AT4HCLD Clear stored numbers n 1 to 3 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH 39 Operation The AT ICLD command lets you restrict call acceptance to systems that have one of the three telephone numbers you specify with this command Using this com
150. y your netw ork The AT ICLI command is valid for the DSS1 protocol Euro ISDN only If the command is used in 1TR6 mode it will be ignored before the M icroLink ISDN TLV 34 switches to the DSS1 protocol This command determines which Multiple Subscriber Number MSN appears as the originator address in outgoing calls to the remote system If a number is entered that was not assigned to the local system as an MSN the ISDN exchange automatically inserts one of the MSNs assigned to the system When you use the ATHCLI s to store the M SN the number s can consist of up to 16 digits Because the number is stored in nonvolatile memory it is preserved when the M icroLink ISDN TLV 34 is turned off reset or reinitialized The number is automatically recalled the next time the M icroLink ISDN TL V 34 is turned on 40 MicroLink ISDN TLV 34 Manual 1997 ELSA GmbH Operation 9 NOTE9 Your MicroLink ISDN TLV 34 does not execute commands any other commands that appear on the same command line with these commands If you use the AT ICLIn command to clear the originator M SN the ISDN exchange automatically inserts an M SN assigned to the local system AT ICLI suppresses the displaying of any number by the ISDN exchange 9 NOTE9 The functions performed by these commands may depend on regulations of the respective ISDN network provider TIDN Set display directory number US protocol only AT IDNn s Setdirectory no n 1 2 AT IDNn Clear
151. ys of cost monitoring period DSS1 1TR6 Range 0 to 255 days Default value 0 Storage in nonvolatile memory Register S170 is used by the European version of MicroLink ISDN TLV 34 only 0551 and 1186 protocols This register specifies the number of days remaining before the number of charge units resets to the maximum limit set specified by Register 167 see Registers 5167 and S168 When the M icroLink ISDN TLV 34 is turned off and on Register 170 resets to the value of Register S 168 S 171 Additional 75 settings Register 171 specifies additional X 75 protocol information The contents of Register 171 can be stored in the nonvolatile memory using the command AT W The following table shows the individual bits of Register 171 Default settings are shown in bold Bit Dec 0 2 0 0 data block size 128 bytes 1 1 data block size 256 bytes 2 2 data block size 512 bytes 3 3 data block size 1024 bytes 4 4 data block size 2048 bytes UNE NEN reserved 4 0 No synchronization asynchronization conversion for point to point protocol 16 Synchronization asynchronization conversion for AT96P1 point to point protocol 0 64 000 bps default for Europe AT96S0 1 256 000 bps with ATW2 AT N4 AT N6 AT N7 and AT N10 default for US AT S1 6 7 0 0 T 70NL header 64 1 2 no T 70NL header 128 2 T 70NL header usable block size reduced by 2 bytes 192 3 T 70NL header total block

MicroLink ISDN/TLV.34

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