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ISU EXPRESS 128 kbps ISDN Service Unit User Manual

1. Connection o Receive Clock NO ciiam No Connection NG Connection 20 Data Terminal Ready 24 EEA d p No Connection 22 RI iuuenes Ring Indicator 23 N A No Connection EUG EE External Transmit Clock 24 4 4 No Connection Input Output N A Not Applicable 103 Appendix Connector Pinouts Table E B RJ 45 ISDN BRI U PINA 104 ISU Express User Manual 61202 081L1 1 Appendix F Ordering ISDN Without 10Cs ISDN is a complex service with multiple options Obtaining service from your local telephone company and long distance providers can sometimes be complicated This appendix guides you and your telephone company in specifying and obtaining your ISDN service requirements To support most of the features in the ISU Express your tele phone service needs to meet certain requirements A general description of these requirements follows Depending on your actual data service needs some features may be deleted Other features may not be available in your area Also features may be deleted for economic reasons depending on your needs and local tariffs Talk to your te
2. sss Normal clock source Factory Setup This option restores the ISU Express to the following factory default setup Service type treni inr eina ISDN dial line ISDN switch AT amp T 5ESS ISDN call type tenter 64 kbps data Dialing mode nime terrens AT commands Data protocol esee eere tr nth e eee V 120 DTE connector bit rate aciem reete ene 9600 bps DTE Asynchronous bio c E EE 8 Parity DOP nat sees ies 1 DTE flow COM ttt et tette tes F NR Forced on CTS line tetris Forced on 1 msec after RTS CD Nesine Turned when call is up DOR ING Transmit 0 aee Internal clock source BONDING timer TXINID 10 seconds BONDING timet teet dete 10 seconds ISU Express User Manual 49 Chapter 4 Configuration 50 NOTE BONDING timer 01 10 seconds BONDING timer eere 50 seconds BONDING timer TANULL creen 50 seconds BONDING timer 5 seconds AT Command Escape character AT Command End of Line character value 13 AT Command Line Feed character value 10 AT Com
3. M 25 Data 56kbps eee ee ne tei ire ei ee EISE ERE E 26 Data GEKDDS M M 26 Service Profile ID SPID 4 iiiter nter 26 Local Directory Number L N ttt tra 27 Dial Options tei ERE erates 27 command c 27 5 27 28 61202 081L1 1 ISU Express User Manual i Table of Contents Chapter 4 Configuration cont PUTO ANS W 28 Disabled 45 5 nomme ees 28 Enabled atenta ertet rri reed 28 zac enini ivan 28 AS WL TONG 28 No Answer tone Default enne teer pn 29 Iticoming ton titer ette eb 29 Outgoing tole etae tanen aident e ahi I Rn eat aree 29 Always TONE eiry A 29 Connect imeout 29 Call x25 ies indes esee 29 Call t meni eere 30 AIL Types DTE te bpm 30 Speech gt POTS airsean itat amu iod s doin 30 Speech Audio gt POTS 30 Configuring the ISU Express for Leased Digital Service sss 31 Clock mode tetra ertet Rr erre extera 31 Channel rat cinese ocecsmee aiti erar ere eiit eter Ecos 31 Op
4. 3 The ADTRAN ISU EXDpEe88 co terere emen torio ree et eene 3 150 Express Interoperability actore ie trees tien ee tpe orte ii 8 Recommended Operating Protocols sssrinin 8 Chapter 2 ISDN Ordering Codes IOCs eese 11 Chapter 3 Installation ttn tnn ene toten 15 Network Connection nitri eee eie iue teer i 15 DTE Data Comme ct On sides attinet ertet ere EERE 16 Telephone m tee diee br 16 Basic Telephone Service caste rire rte eren eene 16 Supplementary 16 25225 M 16 Customer Premises Witte 2 s 18 Chapter 4 Configuration 2 21 Getting Started iie aciem die enden HERR EE RUSO X ISSE ENTES aS 21 Menu Navigation 22 Using ISDN Basic Rate Switched Service 2 4 25 Configuring the ADTRAN ISU Express for Dial Operation 25 owitch 25 25 jog 25 D
5. Bearer mode Incoming call is not of a type the ISU Express can accept Bearer info mode Incoming call information transfer capability is not known BONDING XXX The amount of bytes of corrected delay between the B2 and B1 bearer channels XXX can range from 8000 to 8128 bytes BPS mismatch Bonding negotiation found a bit rate mismatch Break to AT cmd User issued a break in request Break ignored User issued an extra break in request ISU Express User Manual 61202 081L1 1 61202 08111 1 Appendix Status Buffer Messages BUSY The called number is busy CalllD 1 in use ISU Express tried to place a call using SPID 1 when SPID 1 was already in use 2 in use ISU Express tried to place a call using SPID 2 when SPID 2 was already in use Call not ringing User executed an answer command ATA but there was not a call present CALL REJ ECTED The call has been rejected by the ISDN network Can t go online ISU Express cannot go back on line User issued an unknown AT command CAP NOT IMPLEMEN TED The network or far end does not support the bearer capability requested CHAN DOES EXIST The bearer channel requested is not present CHAN NOT IMPLEMENTED The bearer channel requested has not been implemented CHANNEL UNACCEPTABLE The channel requested has not been subscribed gt 0 rcvd Received an incoming call from a third party during negotiations with a far end BONDING
6. CCITT V 120 DSU 56 7 Async for communication with ADTRAN 0505 V 32 bis for communicating with V 32 bis V 42 bis analog modems This protocol option requires optional analog modems to be installed e Point to point protocol PPP asynchronous to synchronous ISU Express User Manual 35 Chapter 4 Configuration Clear Channel conversion See the section Recommended Operating Protocols in the chapter Understanding ISDN and the ISU Express for more information on recommended modes of operation The desired protocol may be selected with AT commands at the DTE port or from the ISU Express built in menu system A description of protocols follows Clear channel provides the entire bearer channel to the DTE without regard to data format or protocol This provides a rate adaptation at or near the ISDN circuit rate The primary usage for Clear Channel in the dial line mode is for 56 kbps and 64 kbps synchronous It is useful when the DTE performs its own internal synchronous protocol rate adaptation or the ISU Express is calling a 4 wire Switched 56 DSU In the leased line mode Clear Channel can provide synchronous bit rates of 56 kbps 64 kbps 112 kbps and 128 kbps BONDING mode 1 36 The BONDING mode 1 protocol allows the ISU Express to communicate at bit rates in excess of 64 kbps to a maximum of 128 kbps BONDING provides high speed communication between ISU Express units ISDN TE TAs and inverse multi plexing
7. Disconnect the ISU Express From a functioning voice phone call the local directory number s provided with your line Calling a good ISDN line with nothing connected usually results in a ring or fast busy tone If someone answers or you get a not in service intercept there is probably something wrong with the translation of the line The phone service provider should be able to help If the Loop LED still remains off then there is a physical problem with the phone line more than likely a problem with the layer 1 setup The problem is one or more of the places listed below e The ISU Express software setup The ISU Express hardware The wiring on your premises The telephone service provider s wiring The telephone service provider s hardware The telephone service provider s software setup To isolate the problem perform the following procedure A Ensure the line is plugged into the ISU Express connec tor marked ISDN DIAL on the back of the ISU Express B Make sure the ISU Express is configured for Dial line service C If possible try another piece of functioning ISDN equipment with a U interface on the line D Talk to your service provider and ensure you have an ISDN Basic Rate U Interface with 2B1Q line coding wrong options are an S or T interface or AMI line coding ISU Express User Manual 61202 081L1 1 61202 08111 1 Chapter 5 Troubleshooting E Ensure that your phone line is connected to the a
8. Siemens EWSD National ISDN 1 NEC Switch NTT Protocol Euro ISDN ETS300 Protocol Request that the ISDN line allocate one dynamic terminal endpoint identifier TEI per phone number 106 ISU Express User Manual 61202 08111 1 Appendix F Ordering ISDN Without IOCs For service offered from an AT amp T 5ESS request a multipoint line with the following features F eat t sione ied ves beste Value loui c On Demand DMD 2 Demand DMD Data Line Class de reete epit Multipoint Maximum 5 er ertet e Ee i ED Wis EE E de e Sere etes 2 Circuit Switched Voice Bearer CSV Channels sss Any Number of CSV 5 1 recommended for testing purposes Circuit Switched Data CSD Bearer Channels sss Any Number ot CSD 2 Terminal Turn the following features off Packet Mode Data Multiline Hunt Multiple Call Appearances Electronic Key Telephone Sets EKTS Shared Dictionary Numbers Accept Special Type of Number Intercom Groups Network Resource Selector Modem Pools Message Waiting Hunting InterLata Competition 61202 081L1 1 ISU Express User Manual 107 Appendix F Ordering ISDN Without IOCs For s
9. eee tote 39 HE X 39 Simple Asynchronous Protocol SAP sse 40 FALLBACK 2t 40 Point to Point Protocol PPP Async to Sync E aias 42 Configuring the ISU Express Using Quick Setup sss 43 Dial 56K Syn ceno ot 43 Dial 64K Syrie eee te tni reae be peo 44 Dial SYNC uenti monete etoile te vestit 44 Gu c 45 N92 19 2 ASYN sa sieaotan eese mene anm an Hd HG Ie rH 45 Dialib 16 AS YO 46 ial 115 2 n n deter e ee 46 Fallback 576K E 47 reae n 47 Leased 128 oet e ree ep 47 Ldm 128 Master nte iren teinte 48 Hactory Set pocs oci reete tei sehe 48 100 Terminal Dialing Options sse 50 Hang up Ine secet otro teneret am quede teme eod neus 50 Dial number 50 Redial last Number 50 Answer Call 50 Dial Stored INumbet ertet eee reet eee tur pem eene 50 Store Review NUMER ED Eee en eive eae ead 50 M 51 Using an AT sanete itte n aieo ret 52 Using S Registersz o
10. 24 AWG Supports 1 phone 53 mA loop current each at 300 ft 24 AWG Supports 5 phones 12 mA loop current each at 100 ft 24 AWG Supports 4 phones 15 mA loop current each at 100 ft 24 AWG Supports 3 phones 20 mA loop current each at 100 ft 24 AWG Supports 5 phones 13 mA loop current each at 8 ft 24 AWG Supports 4 phones 16 mA loop current each at 8 ft 24 AWG Supports 3 phones 21 mA loop current each at 8 ft 24 AWG Display Available through terminal Environmental Operating Temperature 0 to 50 C 32 F to 122 F Storage Temperature 20 C to 70 C 4 F to 158 F Relative Humidity Up to 95 non condensing Physical e Dimensions 1 56 H x 6 5 W x 8 25 D e Weight 2 5 lbs Power e 120 VAC 60 Hz 3 W typical dissipation with POTS and modem options 61202 081L1 1 ISU Express User Manual 71 Chapter 6 Specifications 72 ISU Express User Manual 61202 081L1 1 Commands This Appendix lists the supported AT commands descrip tions of their functions Command Function A Answer Puts the ISU Express in answer mode D Dial Precedes the telephone access number ATD5551212 H Hang up Disconnects the current call O On line Commands the unit to go back on line 5 S register SS S String register Z Reset Resets the AT command processor amp W Save Saves current configuration to EEPROM Break Breaks command proce
11. 90 NO_USER_RESPONDING The dialed number is not responding NORMAL CLEARING The network is disconnecting the current call NOT end2end ISDN The path that the call was routed over is not ISDN from end to end warning only NUMBER_CHANGED The number dialed has been changed OUTGOING CALL BARRED The network will not allow the outgoing call to be placed PROTOCOL ERROR Call control error REQ_CHANNEL NOT AVAIL The channel type requested is currently not available Remote not ISU Bonding negotiation determined the far end unit is not another ISU asynchronous rates can only be supported between two ADTRAN ISUs RESP TO STAT Response to status inquiry Ring 1 2 An incoming call on either the first or second channel entered the Ring state The calling phone number is displayed if avail able S cmd not User did not use proper syntax SAP idle timeout Unit at far end is not configured to use the SAP protocol ISU Express User Manual 61202 081L1 1 61202 08111 1 Appendix Status Buffer Messages SERVICE AVAIL The requested service is not available SOURCE NOT ISDN The incoming calling party is not ISDN warning only SReg SetError Local DTE invalid S register setting Sync BPS lt 56K The synchronous bit rate selected is too slow for the BONDING protocol Synch Mismatch Both ends Bad Synchronization TAINIT expired Bonding timer TAINIT expired TANULL expired Bond
12. Channel A 64 kbps digital information channel BONDING Bandwidth On Demand Interoperability Group Bits per second Basic Rate Interface Call Appearance Channel Associated Signalling Consultative Committee for International Telegraphy and Telephony Common Channel Signalling Carrier Detect Carrier Identification Code Calling Line Identification Circuit Mode Data Complimentary Metal Oxide Semiconductor Calling Number Delivery Customer Premises Equipment Central Processing Unit Call Reference Cyclic Redundancy Check 4 Clear to Send Data Communications Equipment 61202 081L1 1 ISU Express User Manual 117 Acronyms Digital Data Service Direct Memory Access Digital Multiplex Switching Directory Number Data Network Identification Code Display Station Protocol Data Set Ready Data Terminal Equipment Electronic Industries Association Endpoint Identifier Electronic Key Telephone Service Errored Seconds Electronic Switching System European Telecommunications Standards Institute Facsimile Far End Block Errors File Transfer Protocol Foreign Exchange High Density Bipolar of order 3 High Layer Compatibility Identification Input Output Integrated Injected Logic Inter Exchange Carrier Inverse Multiplexer ISDN Network Identification Code Inter Office Facility Integrated Services Digital Network International Standardization Organization Kilobits per second Kilohertz Local
13. ISU Express User Manual 19 Chapter 3 Installation Current Wiring Scheme Yellow To Red Telephone New Wiring Scheme Personal ISU Express Computer EIA 232 Phone U Red Green Yellow To Red Telephone Black WARNING Ensure other yellow and black wire functions are removed before using this wiring scheme Figure 3 2 Wiring Scheme 2 Retain single analog telephone service and add ISDN service 20 ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration GETTING STARTED Prior to operating the ISU Express configure the unit properly in one of the following manners 1 Use the built in ISU Express menu system This requires an asynchronous VT 100 terminal or personal computer with asynchronous VT 100 emulation capa bilities or 2 Use AT configuration commands similar to those used by high speed modems Both of these configuration methods require an asynchronous DTE terminal PC etc to be connected to the 232 port located on the rear panel of the unit Connect the ISU Express to an ISDN U line supplied by the local exchange carrier LEC then to the ISDN BRI U connector located on the rear panel of the unit To default to factory configuration while powering up the ISU Express hold down the SELECT and TEST keys until the PWR LED flashes The ISU Express has a DTE rate adjustment featu
14. Leased 128K When the ISU Express is configured for Leased 128K service the following parameters are automatically preset Service Leased line Network clock source eomm dete Slave Channel rate nente rerit ete ri rp heri 128K Datta protocol nee n tote eden Clear channel DDS loopbacks enabled DITE modes Synchronous DTE connector Dit rate uere ettet 128 kbps DTE flow control nter tnter none 1 msec delay CTS tie Forced on Transmit data 1 Normal clock source ISU Express User Manual 61202 081L1 1 NOTE 61202 081L1 1 Chapter 4 Configuration Ldm 128 Master When the ISU Express is configured for a point to point applica tion such as a limited distance modem arrangement the Ldm 128 Master option automatically presets the following param eters DELVICE LV PO dance ausente nihit ted Leased line Network clock souree rrt Master Channel rate n eere tice ce 128K Data protocol 5 ode tette e enint Clear channel DDS loopbacks enabled DTE Oe ccepit NA Synchronous DTE connector bit rate cigs ees 128 kbps DTE flow cotitrol nre tieniti none lud 1 msec delay CTS Ine rernm rt rmt tases Forced on Transmit data clock
15. Loopback network or protocol NEBE FEBE ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration and Loopback Enable Disable test options are available from the built in menu system Once in this built in menu press Ctrl T to display the ISU Express Test Menu screen Loopback DTE Loopback Network Loopback Protocol and Test Remote are available from the Select and Test buttons on the front of the unit Loopback DTE Causes the DTE port to loop back toward user equipment This allows performance of a bit error rate test BERT between the ISU Express and end user equipment to verify proper cable connection etc Using the built in menu press Ctrl T then select Loopback DTE Alternatively this test can be executed by using the Select and Test buttons on the front of the ISU Express Press Select until the LOC LED remains on and the REM LED is off Then press Test to start and either Select or Test to end the test Loopback Network Forces the ISU Express to loop back both the B1 and B2 channels toward the network This can be used to allow a far end user to perform a BERT all the way through network Using the built in menu press Ctrl T then select Loopback Network This test may also be executed from the front panel by pressing Select until the LOC LED is off and the REM LED remains on Press Test to start the test to end the test press Test again or Select If Clear Channel has been selected as protoc
16. may be necessary The ISU Express has flash memory which allows the software to be upgraded from a file obtained by contacting ADTRAN Technical Support The current version of software can be found in the Status menu To upgrade your ISU Express a PC running a terminal program supporting XMODEM CRC is required Connect the PC to the ISU Express DB25 connector then set it to 9600 baud no parity and one stop bit Power off the ISU Express and perform the following steps 1 Press SELECT for at least five seconds while powering the unit on and wait for a menu to appear on the PC or type the following AT command AT F 2 If needed set a new baud rate using the menu 3 Start downloading Select the download item from the menu 4 When the flash is erased the Express waits for CRC transfer to begin 5 Usethe terminal emulation software to begin uploading the file provided by ADTRAN ISU Express User Manual 115 Appendix Upgrading Software 6 The Express performs a checksum to verify the download 7 A failure to load will be indicated on the terminal Power the Express off and begin again with step 1 116 ISU Express User Manual 61202 081L1 1 Acronyms ACD iere Automatic Call Distribution 4 02 4 Automatic Message Accounting Alternate Mark Inversion AND Automatic Number Identification American National Standards Institute
17. 5 Troubleshooting 64 C If possible try another piece of functioning ISDN equipment with a U interface on the line D With the ISU Express connected to the line and powered up talk to your service provider s repair group and tell them you have an ISDN basic rate line that appears physically okay but has no terminal endpoint identifier TEI Ask them to check the line translation and ensure that the line supports dynamic TEI allocation Tell them that you have an and terminal adapter device connected to the line 5 If the Loop Status in the ISU Express Status menu continu ously reads Register SPID 1 then the ISU Express is physically connected to your local telephone service pro vider and has established logical layer 2 The ISU Express is unable to establish layer 3 The problem is in one or both of the following places The ISU Express software setup The telephone service provider s software setup To isolate the problem perform the following procedure A Ensure the ISU Express is set up for the correct switch type B Make sure the line is multipoint C Make sure the ISU Express is set up with the correct SPID and LDN For example 4 SPID1 205722704646 5 SPID2 205722704747 6 LDN 1 7227046 7 LDN 2 7227047 D If possible try another piece of functioning ISDN equipment with a U interface on the line ISU Express User Manual 61202 081L1 1 61202 08111 1 Chapter 5 Troub
18. Chapter 4 Configuration FALLBACK 42 The FALLBACK asynchronous rate adaption protocol provides the capability to automatically establish calls with other ISDN terminal adapters Switched 56 DSUs PPP compatible bridges routers V 32 bis modems optional as well as other ISUs using a single configuration This allows for integrating services with out changing the configuration on the ISU Express To communicate with analog modems the ISU Express with V 32 bis V 42 bis part number 120208112 and L4 modem option must be used The ISU Express must be optioned as follows for FALLBACK operation 1 Any asynchronous bit rate up to 115 2 kbps which is sup ported by the DTE 2 Flow control must be enabled and supported by the DTE FALLBACK supports the following protocols based on the call type BONDING mode 1 V 120 PPP async sync T Link and V 32 bis When answering calls the ISU Express uses the incoming call type to determine which rate adaption protocols to support See Table 4 A Table 4 A Rate Adaption Protocols When originating calls to unknown units the ISU begins proto col selection based on the local call type Data 64k is used for FALLBACK selected from Quick Setup menu Upon connection ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration at 64k call type BONDING V 120 and PPP async sync are attempted If connection is not made at 64k the ISU Express attempts another call at 56k call
19. Express Press Select until the LOC LED and the REM LEDs flash Press Test to start the test to end the test press Test again or Select Allows the ISU Express to issue a V 54 in band loopback com ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration mand to a far end unit and BERT test the link using a built in 2047 pattern generator checker This allows for testing a circuit without any extra test equipment To use this feature both units must be configured for Clear Channel operation and the far end unit must be able to respond to V 54 loopback commands See the section Setting Protocol Options to option the unit for Clear Channel operation The built in 2047 pattern generator checker will flash the LOC LED if any errors are detected Using the built in menu press CTRL T then select Test Re mote This test may be executed from the front panel by pressing Select until the LOC LED and the REM LEDs remain on Press Test to start the test to end the test press Test again or Select Loopback Disable No Remote Loopbacks The ISU Express will ignore all V 54 and DDS loopback commands Using the built in menu select Enable Disable Tests then select Lpbk No Rem Lpbks This test option is not available from the front panel Near End Block Errors Far End Block Errors FEBE 61202 081L1 1 Use this test to determine the quality of the network connection by viewing the number of near end block erro
20. ISU Express for a New Line sese 106 Appendix Upgrading SoftWare 00 0 109 111 erri M 115 125 List of Tables Table 1 A DIE Indicators 6 Table 1 B ISDN and Analog Modem Recommended Operating Modes 8 Table3 A Using the Flash Hook Table 4 A Rate Adaption Protocols Table 4 B AT Commands Table 5 A Troubleshooting Calls ertet re eger Table Status Messages Table B A Status Bitter Messages 5 icis Table D2A JOBIA 232 Table RJ 45 ISDN U DIAL Table E A BESS Features 0 22044 DMS Features 5 rnm en ER REDE CORDE UE ER NT IPIE TE List of Figures Figurel ADTRAN ISU Express 4 Figure 1 2 ADTRAN ISU Express Rear Panel see 5 Figure 3 1 Wiring Scheme 1 Figure 3 2 Wiring Scheme 2 Figure4 1 Terminal Interface Menu Screens iiris 23 Figure 4 2 150 Express Loopback Points eene 63 61202 081L1 1 ISU Express User Manual Table of Contents vi ISU Express User Manual 61202 081L1 1 Quick Startup Guide NOTE 61202 081L1 1 Before configuring the ISU Express be sure the telephone service has provided the switch type ser
21. When the ISU Express is configured for Dial 64K sync service the following parameters are automatically preset Service EVDe aiio enini d ena eid petes ISDN dial line Automatic answering sessie erae Enabled ISDN calLtype sacan en ra mnes 64 kbps data Data Protocol reme trees Clear channel DTE mde et nep Synchronous DTE connector bit rate sess 64 kbps DTE TOW COMMON iter three de on none RIS LING H 1 msec delay CIS Forced on Transmit data 1 Normal clock source M4 Toopbacks etie retine Accepted Dial 112K sync 61202 081L1 1 When the ISU Express is configured for Dial 112K sync service the following parameters are automatically preset Service type winds RR ER AERE aaa ISDN dial line Automatic Enabled ISDN eee 56 kbps data Data protocol BONDING mode 1 DTE mode 2 4257 insta is Synchronous DTE connector Dit Pate eerte 112 kbps DTE FOW CON MO dera RTS 1 msec delay CTS NING Tm Forced on Transmit data clock sss Internal clock source BONDING timer TXINIT eese 10 seconds BONDING timer TXEA sess 10 seconds BONDING timer een
22. configurations For fine tuning a particular application and DTE settings see the section Options for Both Leased and Switched ISDN Service This section provides detailed step by step processes for configuration the DTE Options To assist in configuring DTE options for the ISU Express eleven common configurations are preset in Quick Setup These include Dial 56k Sync Dial 115 2k Async Dial 64k Sync Fallback 57 6k Dial 112k Sync Leased 128k Dial 128k Sync Ldm 128k Master V32 19 2 Async Factory Setup Dial 57 6k Async n the following descriptions an asterisk following the option ndicates the option requires ISDN switch type to be configured See Setting the Dial Options When the ISU Express is configured for Dial 56K sync service the following parameters are automatically preset DELVICE T N ISDN dial line Automatic answering essent Enabled ISDN call type cente rte treten penetra 56 kbps data Data net entere Inepte Clear channel DIE MOC C Synchronous DTE connector Dit fate esiustesse siri 56 kbps DTE flow control rro tret none ISU Express User Manual 61202 081L1 1 Dial 64K sync Chapter 4 Configuration RIS Bnet re ite prie bien 1 msec delay CTS UNC Forced Transmit data clock sss Normal clock source 54 eter ettet trinis Accepted
23. data link layer interface for a second call BONDING is not active L3 2 notup The call control layer interface for a second call BONDING is not active LDN TOO LONG The local directory number entered has too many digits MANDATORY IE LEN ERR Mandatory information element length error MANDATORY IE MISSING Mandatory information element missing ISU Express User Manual 61202 081L1 1 61202 08111 1 Appendix Status Buffer Messages Need 2 B chan The DTE bit rate requires the BONDING protocol Need 64K call The BONDING protocol requires the ISU Express to be config ured for a 64kbps data call type Negotiation fail The BONDING negotiation has failed NETWORK BUSY The ISDN switch is busy and unable to process a call NETWORK_CONGESTION The phone network is currently congested NETWORK OUT OF ORDER The phone network is out of order No 48K Support The ISU Express does not support 48 kbps TLINK Local DTE setup error NO CIRCUIT AVAILABLE The requested bearer channel is not available NONEXISTENT MSG Nonexistent message was sent by the ISU Express No Sreg number Attempt to access an S register without specifying a specific S register example ATS 1 No Sreg value Attempt to change an S register without specifying a value example ATS2 NO ROUTE The phone network was unable to find a route to the destination number ISU Express User Manual 89 Appendix Status Buffer Messages
24. established the port is used for data This data mode is indicated by the CD signal active See the appendix AT Commands for a list of the supported AT com mands and their functions In addition to the built in menu system the ISU Express can be configured and controlled with in band AT commands from an asynchronous DTE port just as modems are To exit data mode and enter command mode the asynchronous DTE device must transmit a proper escape sequence to the ISU Express A specified time delay must occur between the last data character and the first escape sequence character This is the guard time delay and it can be changed by writing a value to the 12 register The default value for the guard time is one second For a valid escape sequence to occur the DTE must transmit the escape code character three times in succession with delay between each character being less than the guard time The default escape sequence is Another way to exit data mode and enter command mode is to press the TEST key on the front panel This only works if both the LOC and REM LEDs are off Once command mode is entered AT commands can be transmit ted to the ISU Express to configure most of the options dial remote DSUs or initiate tests to check both the ISU Express and the network connections All command lines must begin with the AT character set in either capital or lower case letters To return to an active call and on line type ATO The comman
25. exit the menus press Ctl X The Ctl X command also places the unit back on line if a call is connected It is important to note that some features in the ISU Express do not immediately take effect upon selection This prevents unintentional reconfiguration of the ISU Express during an active call Items such as Bit Rate Protocol and Call Type take effect only at the beginning of a new call For reading ease selectable menu items and messages displayed on the ISU Express menus are in bold type as they appear on the terminal screen ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration ISU EXPRESS Configuration Menu NETWORK options Dial Line 17 gt CTS Options Forced CTS Switch type National ISDN1 18 gt CD Options Normal Call type Data 64Kbps Options Idle when Off SPID 1 6555166061 DSR Options DSR forced on SPID 2 0555300001 Flow Control Flow Ctrl LDN 1 5551000 Data Bits 8 Data hits LDN 2 5553000 Parity Bits None Dial options AT commands Stop Bits 1 Stop bit fiuto answer Enabled PROTOCOL U 128 Answer tone No Answer tone QUICK setup Connect Timout 1 Minute Call Screening Answer any Call Routing Spooch tiudio POTS DTE options Asynchronous Bit Rate 9688 RTS Options 1 ms delay Enter SELECT Esc NO CHANGE Ctl U STATUS Ctl T TEST Ctl C CONFIG Ctl D DIAL Ctl1 3 EXIT Configuration Menu ISU EXPRESS Status Menu UNIT LOOP STATUS STRTUS BUFFER L
26. for an outgoing call to be answered 15 15seconds 30 30 seconds 60 1minute 120 2 minutes 240 4 minutes Determines the delay required immediately before and after entering the escape command for the ISU Express to recognize and execute the command Range 0 to 127 Miscellaneous bits bit 8 is most significant bit Bit2 1 Enables on screen echo of AT com mands Bit 2 0 mands Bit 3 0 Disables on screen echo of AT com Enables AT responses from the ISU Express Disables AT responses from the ISU Express Enables AT responses to be displayed in text form Enables AT responses to be displayed in numeric form Disables PPP ACCM Spoofing Enables PPP ACCM Spoofing Ring indicator uses cadence Ring indicator remains on Bit 3 1 Bit 4 1 Bit 4 0 Bit 7 1 Bit 7 0 Bit 8 1 Bit 8 0 Miscellaneous message bits Bit 8 is most significant bit Bit 5 Bit 6 Bit7 1 Allows connect message ISU Express User Manual 61202 081L1 1 525 DETECT TIME 530 DTE CTS 32 DTE DSR S33 DTE CD 61202 081L1 1 Appendix D S Register List with baud rate Bit 5 Bit 6 Bit7 0 Connects message without baud rate Determines time in hundredth of a second a change in data terminal ready DTR entering the escape command for the ISU Express to recognize and execute the command Range 0 to 255 Controls the
27. grade 3002 type Telco data circuits where line impedance is carefully balanced Allows for higher quality or speed data transmission Allows improved line performance in frequency response and delay distortion D channel The ISDN channel that carries signalling information to control the call setup teardown or invocation of supplementary services The D Channel may also be used to provide packet mode data service DDS Dataphone Digital Service AT amp T private line service for transmitting data over a digital system The digital transmission system transmits electrical signals directly instead of translating the signals into tone of varied frequencies as with traditional analog transmission systems Digital techniques provide more efficient use of transmission facilities resulting in lower error rates and costs than analog systems digital hub Designated office where DDS channels are interconnected and where synchronous network timing testing access and additional service features are provided digital loopback Technique for testing the digital processing circuitry of a communication device May be initiated locally or remotely via a telecommunication circuit Device being tested will echo back a received test message after first decoding and then encoding it The results are compared with the original message four wire circuits Telephone lines using two wires for transmitting and two wires for receiving offering much higher qualit
28. modem standard 128 ISU Express User Manual 61202 081L1 1 Glossary video conferencing The real time usually two way transmission of digitized video images between two or more locations Video conferencing requires a wideband transmission facility Transmitted images may be freeze frame where television screen is repainted every few seconds to every 20 seconds or full motion Bandwidth requirements for two way video conferencing range from 6 MHz for analog full motion full color commercial grade TV to 56 kbps for digitally encoded freeze frame to 1 544 kbps for very good quality full color full motion TV wideband 25 Generally a communications channel offering transmission bandwidth greater than a voice grade channel Data transmission speeds on wideband facilities are typically in excess of 9 6 kbps and often at rates such as 56 kbps and 1 544 Mbps A packet data transfer protocol for the B and D Channels Defines the interface between data terminal equipment and data circuit terminating equipment for terminals operating in the packet mode and connected to public data networks by dedicated circuits 61202 08111 1 ISU Express User Manual 129 Glossary 130 ISU Express User Manual 61202 081L1 1 Index A all types gt DTE 30 always tone 29 asynchronous operation 32 data format stop bits 32 AT commands 54 audio 25 25 26 Bit Rate 32 bonding mode 1 36 CD forced 32 CD options 32 chann
29. of the protocol rate list for a given circuit type 8 ISU Express User Manual 61202 081L1 1 Chapter 1 Understanding ISDN and the ISU Express 3 0 0 3 8 4 0 0 ES vo H EI Table 1 B ISDN and Analog Modem Recommended _ Modes mw LT vo E Sc LU las cs vo f rene 5 T cecen puse ra CRC EUR CRA DIAL 64K 2 call ype _ BONDING with two ame ASNC BONDING pne cene ee LLL 9x Eom TTT TY eC sap x sf maso 128k Joe eus T TL LET 1 4 8 0 0 0 61202 081L1 1 ISU Express User Manual 9 Chapter 1 Understanding ISDN and the ISU Express 10 NOTE Notes to Table 1 B 1 asynchronous rates support flow control 2 All dial up modes support VT 100 terminal DTR AT command and V 25 bis dialing methods 3 Rates marked with f require flow control 4 Given a choice b
30. on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Changes or modifications not expressly approved by ADTRAN will void the user s authority to operate this equipment CANADIAN EMISSIONS REQUIREMENTS This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference causing equipment standard entitled Digital Apparatus ICES 003 of the Department of Communications Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Class B prescrites dans lanorme sur le materiel brouilleur Appareils Numeriques NMB 003 edictee par le ministre des Communications CANADIAN EQUIPMENT LIMITATIONS Notice The Canadian Industry and Science Canada label identifies certified equipment This certification means that the equipment meets certain telecommu nications network protective operational and safety requirements The Depart ment does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means
31. operation From the DTE Options parameter select asynchronous or synchronous Ensure the DTE equipment is set for asynchronous operation before attempting to make an asynchronous call Failure to do so causes the call attempt to fail The Bit Rate can be set asynchronously for 300 1200 2400 4800 9600 19200 38400 57600 115200 and 230400 bps and synchro nously for 2400 4800 9600 19200 38400 48000 56000 64000 12000 and 128000 bps Selecting 1 MS delay causes the clear to send CTS signal to change states 1 millisecond after the DTE ready to send RTS signal changes states The 18 MS delay causes the CTS signal to change state 18 milliseconds after the DTE RTS signal changes state Selecting Forced On causes the CTS signal on the DTE connector to be continually asserted Selecting Follows RTS causes the CTS signal to follow the state of the RTS lead ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration Selecting CD Forced on causes the carrier detect CD signal to always be asserted Selecting Normal causes the CD signal to be asserted when a call has been successfully established Selecting Off with LOCD causes the CD signal to be disasserted for a period of 5 seconds then reasserted at the termination of a call Selecting Off with Link Down causes the CD signal to be disasserted when the U interface is not present DTR Options Selecting Ignore DTR causes the ISU Express to disregard the state of
32. or Sales in the ADTRAN Customer Service department A Return Material Authorization RMA is required prior to returning equipment to ADTRAN Telephone numbers addresses and product support information is provided on the last page of this manual Product Support Information Pre Sales Inquiries and Applications Support Please contact your local distributor ADTRAN Applications Engineering or ADTRAN Sales Applications Engineering 800 615 1176 Sales 800 827 0807 Post Sale Support Please contact your local distributor first If your local distribu tor cannot help please contact ADTRAN Technical Support and have the unit serial number available Technical Support 888 4ADTRAN Repair and Return If ADTRAN Technical Support determines that a repair is needed Technical Support will coordinate with the Return Material Authorization RMA department to issue an RMA number For information regarding equipment currently in house or possible fees associated with repair contact RMA directly at the following number RMA Department 205 963 8722 Identify the RMA number clearly on the package below ad dress and return to the following address ADTRAN Inc RMA Department 901 Explorer Boulevard Huntsville Alabama 35806 RMA
33. provides the capability for the transmission of information between user to network interfaces Bearer services defined for ISDN are circuit mode and packet mode BONDING mode 1 Protocol Industry standard B channel aggregation protocol Developed by the Bandwidth on Demand Interoperability Group CCITT Consultative Committee for International Telephony and Telegraphy A body of the International Telegraph Union ITU which prepares recommendations commonly referred to as international standards to resolve technical telegraph and telephone problems central office CO In telephony the phone company switching facility or center usually a Class 5 end office at which subscribers local loops terminate Handles a specific geographic area identified by the first three digits of the local telephone number Usually the facilities of the local BOC clear channel A channel in which all the 64 kbps are used for transmission To achieve this bit robbing signalling must be eliminated 61202 081L1 1 ISU Express User Manual 121 Glossary common channel interoffice signalling CCIS A signalling system developed for use between stored program switching systems All of the signalling information for a group of trunks is transmitted over a dedicated high speed data link rather than on a trunk CCIS reduces call setup time compared to individual trunk signalling conditioning Extra cost options that users may apply to leased or dedicated voice
34. service 0 None 1 Answer 2 Originate 3 Both DDS Allows ISU Express optioned as leased line unit to respond to DDS in band latching loopback or V 54 loopback commands 0 No checking 1 Check for DDS latching loopbacks 2 Check for V 54 loopbacks 3 Check for V 54 and DDS latching loopbacks CALL SCREENING Allows the ISU Express to screen incoming calls 0 Answer any call 1 Answer only calls from numbers matching those stored in SNO through SN9 CHANNEL RATE Sets the available network bandwidth when the ISU Express is in leased mode 3 64 kbps 5 128 kbps SPID1 LOC Primary SPID location SPID2 LOC Secondary SPID string location LDNI LOC Primary local directory number string location ISU Express User Manual 61202 081L1 1 9572 DATA BITS S73 DTE PARITY 574 DTE STOP S75 DTE FLOW 61202 081L1 1 Appendix D S Register List Secondary local directory number string location Selects asynchronous or synchronous mode on the DTE connector 0 Asynchronous 1 Synchronous Selects the DTE connector bit rate 1 300 3 1200 6 2400 8 4800 11 9600 15 19200 17 38400 18 48000 19 56000 20 57600 21 64000 22 112020 23 115200 24 128000 25 230400 Selects the number of asynchronous data bits 0 8 bit
35. the data terminal ready DTR pin Cmd when Off forces the unit into the AT command processor mode when DTR is not asserted To return on line DTR must be asserted fol lowed by the ATO command Idle when Off forces the unit to end the current call when DTR is no longer asserted Off gt On dial 0 allows one call attempt to be automatically established when the DTR signal goes from inactive to active While DTR is active dialing is also possible through the built in menu system When DTR goes inactive any outgoing or incoming call present is disconnected Off gt On dial 0 uses the phone number in stored number register 0 to establish the call To store a number for automatic dialing see the section VT 100 Terminal Dialing Options Selecting Dial 0 if On allows calls to be automatically established when the DTR signal is in the active state The unit attempts to establish a call using SNO until the call is established or DTR goes inactive Selecting Answer if On only allows the unit to answer an incoming call if the DTR signal is asserted DSR Options Selecting DSR forced on causes the data set ready DSR signal on the DTE connector to always be asserted Selecting OFF Idle Test causes DSR to be disasserted if the network interface is in test or there is not an active call OFF Link Down causes DSR to be disasserted if the network interface is disrupted Flow Control for Asynchronous Data Selecting Hardware Flow Control allows RX data to be
36. through integrated access arrangements and defines a limited set of standard multipurpose interfaces for equipment vendors network providers and customers Interworking with a public switched telephone network is retained 61202 08111 1 ISU Express User Manual 123 Glossary jitter The slight movement of a transmission signal in time or phase that can introduce errors and loss of synchronization for high speed synchronous communications See phase jitter LATA Local Access and Transport Area One of 161 local telephone serving areas in the United States generally encompassing the largest standard statistical metropolitan areas Subdivisions established as a result of the AT amp T divestiture that now distinguish local from long distance service Circuits with both end points within the LATA intraLATA are generally the sole responsibility of the local telephone company while circuits that cross outside the LATA interLATA are passed on to an interexchange carrier loopback A diagnostic procedure where data is sent to the device being tested and the output of the device is fed directly back to its input looped around and the returning data is checked against that which was sent message The layer 3 information that is passed between the CPE and SPCS for signalling multidrop A communications arrangement where multiple devices share a common transmission channel though only one may transmit at a time multiplexing The combin
37. unit on the use of the second Bearer channel DEST NOT ISDN The number called is not ISDN warning only ISU Express User Manual 85 Appendix Status Buffer Messages 86 DEST OUT OF ORDER The called number is out of order Dial1 2 The ISU Express placed a call on either the first or second channel The number called is displayed following the message Discon1 2 The call on either the first or second channel was disconnected from the network The far end phone number is displayed if available Disconnect Req Far end unit disconnected during BONDING negotiation DPUMP END RCVD Indication of a hang up or disconnect occurring during BOND ING Does not indicate an error condition has occurred DTE must be SYNC For the protocol chosen the DTE connector must be optioned as synchronous DTE not set V25 The DTE equipment is not optioned for the same bit rate as the ISU Express for V 25 bis dialing DTR not up ISU Express tried to place a call in a dialing mode that requires DTR to be in an active state but it is not Dump call ISU Express could not accept an incoming call because it was already involved in a call Dump1 2 An incoming call on either the first or second channel was discarded by the ISU The calling number is displayed if avail able ISU Express User Manual 61202 081L1 1 61202 08111 1 Appendix Status Buffer Messages FACILITY NOT IMPLEMENT The network does not support the requested
38. 2 081L1 1 1 Disconnect the phone line from the ISU Express 2 Turn on the ISU Express verify that it passes self test 3 Turn off the ISU Express while holding down 0 turn on the ISU Express Continue to press down 0 for 15 seconds This will reset all the internal settings to factory defaults 4 The ISU Express is now set up for 5ESS Custom If this is not the correct line type select CONFIG Netw Options Dial Line Switch Type and the desired switch type 5 Enter the SPIDs and LDNs for the ISDN multipoint line Select CONFIG Netw Options Dial Line Terminal ID Set SPID Set LDN and enter the SPIDs and LDNs Make sure that SPID1 corresponds to LDN1 and SPID2 corresponds to LDN2 6 Turn the ISU Express off then on This is required after changing any of the previous settings The ISU Express should now be set up for your line You may wish to verify the settings ISU Express User Manual 113 Appendix F Ordering ISDN Without IOCs 7 Connect the phone line to the ISDN IFC connector on the ISU Express The front panel should read Link Down and progress to Ready as the line is activated This process may take a minute At this point if the ISU Express does not read Ready see the section If the ISU Express Does Not Read Ready in the chapter Troubleshooting 114 ISU Express User Manual 61202 081L1 1 Appendix Upgrading Software 61202 081L1 1 As features are added to the ISU Express software upgrades
39. ADRAN ISU EXPRESS 128 kbps ISDN Service Unit User Manual Part Numbers 1202081L1 ISU Express Data Only 1202081L3 ISU Express with POTS Option 1202081L4 ISU Express with POTS and Modem Options 120208115 ISU Express with 2 Option 120208118 ISU Express S T 110V 1202081L9 ISU Express S T 230V 1202081110 ISU Express S T with POTS Option 110V 1202081111 ISU Express S T with POTS Option 230V 61202 081L1 1B April 1996 Trademarks ISU is a trademark of ADTRAN Incorporated Macintosh is a registered trademark of Apple Computer Incorporated Windows is a registered trademark of Microsoft Corporation 5ESS is a registered trademark of AT amp T DMS 100 is a trademark of Northern Telecom ADRAN 901 Explorer Boulevard P O Box 140000 Huntsville AL 35814 4000 Phone 205 963 8000 1997 ADTRAN Inc All rights reserved Printed in USA FCC regulations require that the following information be provided to the customer in this manual 1 If your telephone equipment ISU Express causes harm to the telephone network the Telephone Company may discontinue your service temporarily If possible they will notify you in advance If advance notice is not practical you will be notified as soon as possible You will be advised of your right to file a complaint with the FCC 2 Your telephone company may make changes in its facilities equipment operations or procedures that could affect the proper operation of your eq
40. Area Network Local Access and Transport Area Local Directory Number Local Exchange Carrier 118 ISU Express User Manual 61202 081L1 1 Acronyms Logical Link Control LAN Low Layer Compatibility ISDN Megabits per second Multi Frequency Signalling Multiline Hunt Group Metal Oxide Semiconductor Mean Time Between Failure Near End Block Errors National ISDN 1 National ISDN 2 National Institute of Science and Technology North American ISDN Users Forum Network Termination Open Systems Interconnection Private Branch Exchange Personal Computer Packet Handling Function Packet Mode Data Plain Old Telephone Service Public Packet Switched Network Primary Rate Interface Public Switched Telephone Network Permanent Virtual Circuit Random Access Memory Read Only Memory Stored Program Controlled Switching System Service Profile Identifier Signalling System 7 Terminal Adapter Terminal Equipment Terminal Endpoint Identifier Transistor Transistor Logic Universal Asynchronous Receiver Unavailable Seconds Universal Synchronous or Asynchronous Receiver Wide Area Network 61202 081L1 1 ISU Express User Manual 119 Acronyms 120 ISU Express User Manual 61202 081L1 1 Glossary ANSI American National Standards Institute B Channel 64 kbps bearer channel used for voice circuit or packet switched data bearer service As defined by CCITT standards a type of telecommunication service that
41. DTE off hook status ISU Express User Manual 7 Chapter 1 Understanding ISDN and the ISU Express ISU EXPRESS INTEROPERABILITY Telephone networks are evolving from analog technologies to digital technologies such as ISDN This transition is time consuming and costly for telephone companies Upgrading all locations and facilities is a lengthy process The ISU Express bridges this transition by supporting communi cations with existing and future network services and equip ment The ISU Express supports communications with Switched 56 service and Switched 56 DSUs 2 wire and 4 wire as well as various ISDN terminal adapters ISDN terminal equipment PPP compatible bridges routers and BONDING mode 1 compatible inverse multiplexers RECOMMENDED OPERATING PROTOCOLS The ISU Express supports a wide range of operating modes Many combinations of circuit type protocol and data rate may be selected However only the combinations shown in Table 1 B are recommended As noted in Table 1 B all asynchronous rates support flow control However the 115200 rate only with SAP V 120 and a 64 kbps circuit type requires the use of flow control Table 1 B shows that a given data rate may be achieved by more than one protocol rate adaption selection The table is orga nized so that selections with the least transport delay are closer to the top of the table for any given circuit type Therefore choose a protocol and rate closer to the top
42. Data I 1DN 2B service Data only One directory number 12 is not available for services provided by a Northern Telecom switch Two directory numbers are required for 2B operation In this case use Capability R NOTE J3 previously Generic Data J 1DN 2B service e 1B alternating voice data 1B data only One directory number 3 is not available for services provided by a Northern Telecom switch Two directory numbers are required for 2B operation In this case use NOTE 2 J2 previously Generic Data J 2B service 1B alternating voice data 1B data only Two directory numbers 61202 081L1 1 ISU Express User Manual 13 Chapter 2 ISDN Ordering Codes IOCs M5 previously Generic Data M 1DN 2B service Both B channels alternating voice and data One directory number 5 is not available for services provided by Northern Telecom or AT amp T switches Two directory numbers are required for 2B operation In this case use Capability S NOTE 14 ISU Express User Manual 61202 081L1 1 Chapter 3 Installation After unpacking the unit immediately inspect it for possible shipping damage If damage is discovered file a claim immedi ately with the shipping carrier then contact ADTRAN Repair and Return department see end of manual NETWORK CONNECTION 61202 081L1 1 The ISU Express supports either dial or leased operation A single RJ 45 modular jack labeled ISDN BRI U on the rear pane
43. E PHONE 1 1202081L5 Figure 1 2 ADTRAN ISU Express Rear Panels 6 ISU Express User Manual 61202 081L1 1 61202 08111 1 Chapter 1 Understanding ISDN and the ISU Express Dialing from the ISU Express is accomplished in a variety of ways e Using a VT 100 terminal connected to the rear panel EIA 232 port Over the DTE interface using the AT command set V 25 bis in band used in applications such as LAN WAN bridging e With enabled Routers raise when bandwidth on their dedicated line is exceeded In high traffic times this allows the ISU Express to dial out over the ISDN for an extra 128 kbps of bandwidth on demand Seven LED indicators located on the front panel of the ISU Express monitor data flow and display the status of key DTE interface leads as described in Table 1 A Table 1 A DTE Indicators Indicator Definition RS Request to send Indicates that the DTE is ready to transmit CS Clear to send Indicates that the ISU Express is ready to transmit TD Transmit data On when the DTE is transmitting to the ISU Express RD Receive data On when the ISU Express is receiving data from the far end CD Carrier detect Indicates that the ISU Express is connected to a remote unit TR Data terminal ready from DTE On when DTR is active at DTE interface Ring indicator Flashing indicates incoming call is ringing On the 1202081L2 L5 this LED also indicates
44. EAK IN CHARACTER e END OF LINE CHARACTER LINE FEED CHARACTER 61202 081L1 1 Determines how the ISU Express answers an incom ing call 0 Disable ISU Express does not answer call 1 Enable ISU Express answers all calls 2 Dump all calls Determines which key or character in ASCII code defines the escape command The standard escape character is a sign ASCII value of 43 decimal To change the character set set S2 to the desired ASCII value Range 0 to 127 Determines which key or character in ASCII code ends a command line The standard end of line character is the carriage return ASCII value of 13 decimal Range 0 to127 Determines which key or character in ASCII code advances the cursor to the next line after ending a command line or after an ISU Express message The standard character is the line feed ASCII value of 10 decimal Range 0 to 127 ISU Express User Manual 93 Appendix D S Register List SB BACK SPACE CONNECT TIME 912222 ESCAPE TIME S14 MISC BITS 522 MSG BITS 94 Determines which key moves the cursor back one space to erase a character The standard character is the backspace ASCII value of 8 decimal Range 0 to 127 Determines how long the ISU Express waits
45. LL TYPE ROUTING Determines how incoming call is routed when connected to a point to point ISDN line 0 Route all call types to DTE 1 Route speech call types to POTS 2 Route speech and audio call types to POTS S94 LOCAL TONES Forces the POTS interface to generate all tones Bit 0 20 In band tones from ISDN switch when available Bit 0 1 All tones generated locally Bit 1 0 Warnings to POTS when unavailable Bit 1 1 Disable all warnings to POTS 102 ISU Express User Manual 61202 081L1 1 Appendix E Connector Pinouts 61202 081L1 1 ISU Express User Manual Table E A EIA 232 Interface Pin Name 1 0 Description TEENE Shield WO RES Shield for cable poer D HI Transmitted Data Received Data ee ET Senes Request to Send D nsn C TS tiere Clear to Send D issus DSR oeste o Data Set Ready T essei VO sitter Signal Ground GOD Carrier Detect hy HEM No Connection ee eee ens Connection N A No Connection 12 NG 22 22 No Connection 13 Loe 22 22 Connection TA ases ING Rem No Connection 15 Transmit Clock VG ninan
46. Manual 61202 081L1 1 Appendix Commands Function DTE Data Type Options amp 00 DTE is async amp 1 DTE is sync Clear to Send CTS Control Line Options amp RO Follows RTS amp R1 Forced CTS Data Set Ready DSR Control Line Options 50 DSR forced on amp S1 DSR if call up amp S2 DSR if link up amp 53 DSR off if dial up DTE Connector Data Synchronous Data Clocking Options 0 Internal transmit clock amp 1 External transmit clock Assigning Stored Numbers for Dialing Options 70 Stored number 0 71 Stored number 1 72 Stored number 2 amp Z3 Stored number 3 74 Stored number 4 amp 75 Stored number 5 amp Z6 Stored number 6 77 Stored number 7 amp Z8 Stored number 8 amp 79 Stored number 9 Echo Tone Options EO Disables local echo 1 Enables local echo Unit Identification 10 Identifies unit Commands the unit to display model number Identifies software Commands the unit to display software version 61202 081L1 1 ISU Express User Manual 75 Appendix Commands Function AT Command Response Message Options 00 Response messages O1 Response messages off AT Command Response Message Types Vo Response messages codes V1 Response messages words AT Command Connect Message Options Simple connect message X1 7 Connect messages with bit rate Ready to Send RTS Control Line Options _20 1 mS delay DI 18 m delay MakeB
47. Selects the type of V 25 bis dialing used 0 Asynchronous V 25 1 HDLC V25 2 BISYNC V 25 3 HDLC with flags V 25 550 LINE MODE Selects the operating mode of the ISU Express 0 Dial service switched service 1 Leased service non switched service 551 LINE CLOCK Selects the clock mode in leased mode 0 Slave default 1 Master Leased line only limited distance MODEM application only 552 SWITCH Selects the network switch type for dial service 0 AT amp T 5ESS 1 Northern Telecom DMS 100 2 National ISDN 1 3 553 CALL TYPE Call type dial service only 0 Speech 1 Audio 2 56 kbps data 3 64 kbps data 54 PROTOCOL Rate adaption protocol type TYPE 1 Clear Channel no rate adaption 2 BONDING mode 1 3 SAP simple ADTRAN protocol 4 T link 6 V 120 7 32 9 DSU 57 6 kbps asynchronous 11 FALLBACK 61202 08111 1 ISU Express User Manual 99 Appendix D S Register List 5560 5561 5562 100 12 PPP async to sync conversion DIAL MODE Selects dialing interface 0 None 2 AT commands 3 V25 bis dialing ECHO TONE Enables an echo tone which suppresses the echo cancellers in a voice circuit Can be used to trick the switch to allow sending data over a line optioned for voice ISDN
48. TANULL 38 TCID 38 TXADDO1 37 TXDEQ 37 TXFA 37 TXINIT 37 clear channel 36 DSU 57 6 ASYNC 39 61202 081L1 1 ISU Express User Manual Index DSU 57 6 async 39 fallback 40 SAP 40 Tlink 40 V 120 38 V 32bis 38 compression 39 error control 39 MNP block size 39 setting the call type audio 25 Data 5 kbps 26 Data 64kbps 26 speech 25 setting the dial options AT commands 27 V 25bis 27 software version 62 specifications 73 speech 25 25 26 speech gt POTS 30 speech audio gt POTS 30 status buffer 61 status buffer messages See Appendix B stop bits 34 T Tlink 40 TANULL 38 TCID 38 terminal interface menu screens See Figure 4 2 test options loopback disable 64 loopback DTE 61 loopback netw 62 loopback protocol 62 loopback remote 63 NEBE FEBE 64 software ver 61 software version 62 test remote 63 test remote 63 transmit clock 34 133 Index TXADDO1 37 TXDEQ 37 TXFA 37 TXINIT 37 V V 120 38 V 25bis In band Dialing 59 V 32bis 38 V32 19 2 async 45 version 1 0 S register list See Appendix C 134 ISU Express User Manual 61202 081L1 1 Returning the unit to ADTRAN ADTRAN will replace or repair this product within five years from the date of shipment if it does not meet its published specifications or fails while in service refer to ADTRAN Equipment Warranty and Repair and Return Policy and Procedure For service RMA requests or further information contact RMA Technical Support
49. a modem answer tone at the start of voice and audio calls The purpose of this tone is to disable echo suppression and echo canceling on the circuit in order to get a clear digital circuit This may be necessary on some long distance circuits The specifics of the tone are 4 seconds 2100 Hz at a 10 dB level with phase rever sals every 475 ms ISU Express User Manual 61202 081L1 Chapter 4 Configuration No Answer tone Default This option disables the answer tone on incoming calls Incoming tone Enables the answer tone on incoming calls Outgoing tone Enables the answer tone on outgoing calls Always tone Enables the answer tone on either incoming or outgoing calls Connect Timeout Call Screening 61202 081L1 1 Connect Timout sets the length of time that the ISU Express waits for a far end unit to answer an outgoing call Call Screening allows the ISU Express to answer all incoming calls default or only calls originating from phone numbers stored the DIAL menu as stored numbers SNO through SN9 When Call Screening is set to answer any numbers stored in SNO through SN9 an incoming call is not answered if the Call ID received from the switch does not match a stored number Depending on the switch type the Call ID may be presented in either a seven or ten digit format The ISU Express displays the Call ID for all dumped calls in the Status buffer See the section The Status Buffer in the chapter Configuration f
50. all on hold and reconnects to outgoing call Hanging up will terminate both calls When connecting to a National ISDN 1 switch call conferencing and call transferring are assigned a unique feature identifier number This number may not be the same in all areas S registers 90 and 91 contain NOTE the feature identifier numbers for conference and transfer If these features do not work contact your ISDN provider They can determine what the numbers are for these features and they can then be programmed into the ISU Express 61202 081L1 1 ISU Express User Manual 17 Chapter 3 Installation Customer Premises Wiring Customer premises wiring requirements for the ISU Express vary depending on the application and existing wiring It may be simpler for the ISDN provider to deliver another line to your location This would eliminate the need to modify existing wiring Figures 3 1 and 3 2 illustrate two wiring scheme possi bilities 18 ISU Express User Manual 61202 081L1 1 _ To Telephone Company _ 61202 081L1 1 Yellow Chapter 3 Installation Current Wiring Scheme OO OO Red Green Personal Computer Yellow New Wiring Scheme ISU Express EIA 232 Phone U Figure 3 1 Wiring Scheme 1 Use existing analog telephone equipment but replace single analog telephone service with ISDN service
51. asyn When the ISU Express is configured for Dial115 2 asyn service the following parameters are automatically preset Service type tope ier ISDN dial line ISDN call type rte sss 64 kbps data protocol rere eene BONDING mode 1 DTE bii ree o eter enn Asynchronous Data 8 Parity DUS Stop 1 DTE connector bit Pate rtis 115 2 kbps DTE flow control eter rrt None SAI 1 msec delay CUS A Forced on 61202 081L1 1 ISU Express User Manual 47 Chapter 4 Configuration 48 Fallback 57 6k More When the ISU Express is configured for Fallback 57 6k service the following parameters are automatically preset SEVICE TYPE Dial line Automatic answering a tenentes ISDN call type nece tret e onere 64 kbps data Data protocol proe erede ertt Fallback DEPE mode suu ciii enema iem Asynchronous DIES ette e ete eer 8 Parity SHOP 1 DTE connector bit rate 57 6 kbps DTE HOW anae ttes Hardware RTS eee nara roin prier 1 msec delay CTS Ime corte tbc Deve eese Follows RTS Select More to access the following level of choices
52. ctual telephone line U interface provided by your telephone company Make sure your line is not connected through another piece of equipment such as an NT1 ina wiring closet somewhere E sure nothing else is bridged across the line pair G With a minimum of extra wiring try connecting to the line pair at the point where service provider s wiring ends H With the ISU Express connected to the line and powered up talk to your service provider s repair group and inform them that your ISDN basic rate line has a physi cal layer 1 problem Ask them to check the line Tell them that you have an NT1 like device a the end of the line 4 If the Loop Status in the ISU Express Status menu continu ously reads Getting TEI 1 then the ISU Express is physi cally connected to your local telephone service provider but is unable to establish logical layer 2 The problem is in one or more of places listed below ISU Express software setup The telephone service provider s software setup Hardware configuration if the line is extended from the switch To isolate the problem perform the following procedure A Ensure the ISU Express is set up for the correct switch type B Ensure the quality of your line is satisfactory by check ing for near and far end block errors NEBEs and FEBEs If the counts are non zero there may bea physical link problem as described in step 3 ISU Express User Manual 63 Chapter
53. d line may contain a single command or a series of commands after the AT attention code When a series of com mands is used the individual commands may be separated with spaces for readability The maximum length for a command line is 40 characters Each command line is executed by the ISU Express upon receipt of a terminating character The default ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration terminating character is a carriage return ASCII 013 but it can be changed by writing a different value to register S3 Before the terminating character is transmitted the command line can be edited by using the backspace character ASCII 008 to erase errors so the proper commands can be entered Using an AT Command Type AT followed by the letter of the command and numeric value of the setting desired and then press Enter The following command returns the software version of the unit 1 Using S Registers The configuration of the ISU Express can be changed or re viewed with S registers See the appendix Current Status Mes sages for a description of each S register and its corresponding range of values Reading an S Register Type ATS followed by the number of the S register to be read followed by a question mark and press Enter 50 Reading an S Register String The ISU Express uses S register strings to store strings of digits for stored phone numbers SPIDs etc Type ATSS followed by the number of
54. e 50 seconds BONDING timer eene 50 seconds BONDING timer TANULL eere 10 seconds BONDING timer TCID essere 5 seconds 5216 a Accepted ISU Express User Manual 45 Chapter 4 Configuration 46 Dial 128K sync When the ISU Express is configured for Dial 128K sync service the following parameters are automatically preset DCEVICS TYP Oe PE ISDN dial line Automatic answering sss eren Enabled ISDN call types 64 kbps data Data Protocol ient tei ees BONDING mode 1 m Synchronous ID TE DIG TATE coaster centes 128 kbps DIE flow control un ian RIS T 1 msec delay Forced on Transmit data clock iem o meon Internal clock source BONDING timer EXINIT ttt nets 10 seconds BONDING timer TXEA sse 10 seconds BONDING timer TXADD01 eere 50 seconds BONDING timer essent 50 seconds BONDING timer TANULL eere 10 seconds BONDING timer teen tne 5 seconds V54 lo pbacks iet terae Accepted V32 19 2 async When the ISU Express is configured for V 32 19 2 async service the following parameters are automatically preset Set VICE LY PO uester dre v
55. e following CO switches and protocols Sw itch Protocol AT amp T 5ESS Custom 5E6 or later software National ISDN 1 Northern Telecom DMS 100 5 32 or later software 1 National ISDN 1 2 Siemens EWSD National ISDN 1 The interface provides the ability to allocate one dynamic TEI per phone number Bearer capabilities Circuit mode voice service for speech and 3 1 kHz audio Circuit mode data service for 56 kbps and 64 kbps unrestricted data Two simultaneous calls supported on the interface Any mix of speech and data bearer capabilities is supported for both bearer channels on incoming and outgoing calls Service provided inside the LATA for the bearer capabilities Long distance access for the bearer capabilities to and from the long distance providers of choice ISU Express User Manual 109 Appendix F Ordering ISDN Without IOCs Long Distance Service If facilities are available subscribe to long distance service supporting the bearer capabilities previously listed Request service supporting circuit switched 64 kbps or 56 kbps access It is recommended that the same long distance carrier end to end throughout the network to be used Deciding What Services to Order If you are new to ISDN first obtain the features previously listed Refer to the section ISDN Service Ordering Information in this appendix as a basic guide It is easier to begin operating on a full featured line beca
56. e line that appears physically okay but is unable to register its SPID s ISU Express User Manual 65 Chapter 5 Troubleshooting 66 Ask them to check the line translation ensure the line supports dynamic TEI allocation and verify the SPIDs Tell them that you have an 1 and terminal adapter device connected to the line If the Loop Status in the ISU Express Status menu continu ously reads Register SPID 2 the ISU Express has com pletely initialized the first phone number but is unable to establish logical layer 3 for the second phone number The problem is in one or both of the following places The ISU Express software setup The telephone service provider s software setup To isolate the problem perform the following procedure A Ensure the line is multipoint with two phone numbers B Ensure that the ISU Express is set up with the correct SPID and LDN For example 4 SPID1 205722704646 5 SPID2 205722704647 6 LDN 1 2704646 7 LDN 2 2704747 C Try swapping SPID1 with SPID2 and LDN1 with LDN2 Determine if the problem is the second phone number or the quantity of phone numbers D If possible try another piece of functioning ISDN equipment with a U interface on the line With the ISU Express connected to the line and powered up talk to your service provider s repair group and tell them you have an ISDN basic rate line that appears physically okay but is unable to register its SPIDs Ask t
57. e should be left at the factory default setting of 10 seconds However when interoperating with other manufacturers BONDING equipment it may be necessary to lengthen this timer so that it matches TXADDOI Select from values of 1 2 5 10 default 20 50 100 and 200 seconds TXFA 10 sec def TXADDO1 This option specifies the length of time both endpoints wait for the additional call to be connected at the end of negotiation before deciding the BONDING call has failed The factory default setting of 20 seconds is sufficient for most calls to con nect however when dialing overseas it may be necessary to lengthen this timer to allow for slower call routing Select from values of 1 2 5 10 20 50 default 100 and 200 seconds TXADDO1 50 sec def TXDEQ This option specifies the length of time both endpoints attempt to equalize the network delay between the bearer channels ISU Express User Manual 37 Chapter 4 Configuration 120 V 32 bis 38 before deciding the BONDING call has failed This timer default setting is 50 seconds Values of 1 2 5 10 20 50 default 100 and 200 seconds are available TXDEQ 50 sec def TANULL This option specifies the length of time the answering endpoint attempts to detect the BONDING negotiation pattern from the originating endpoint before aborting to clear channel mode In general this timer value should be left at the factory default setting of 10 seconds Howe
58. el rate 31 clear channel 36 clock mode slave master 31 compression 39 CONFIG See Figure 4 1 configuration menu tree See Figure 4 1 configuring the ADTRAN ISU 128 rackmount dial 25 configuring the ISU 128 rackmount using quick 43 configuring the ISU 128 rackmount Digit for leased 31 configuring the ISU 128 rackmount for leased Digit 61202 081L1 1 ISU Express User Manual channel rate 31 clock mode slave master 31 connector pinouts See Appendix D CTS options 32 current status messages See Appendix A D data 56kbps 26 data 64kbps 26 data bits 34 data format 34 dial 112K sync 44 dial 128K sync 45 dial 56K sync 43 dial 64K sync 44 dial operation 15 25 dial options V 25bis 27 Diall 15 2 asyn 46 Dial57 6 asyn 46 dialing a call by the AT command processor 53 dialing options 50 store review 50 disabled 28 DSR options 33 DSU 57 6 ASYNC 39 DTE 7 DTE data connection 16 DTE indicators 7 See also Table 1 A DTR options 33 dump all calls 28 131 Index enabled 28 error control 39 F factory setup 48 fallback 40 fallback 57 6k 47 flow control 33 front panel dialing options hang up line 50 redial last number 50 H hang up line 50 how fo use AT commands using the S registers 52 incoming tone 29 ISDN 3 5 8 11 ISDN service ordering information 96 L Ldm 128 master 48 leased 128K 47 leased digital service 31 channel rate 31 clock mode slave master 31 leased operation 15 loopback d
59. em part number 1202081L4 must be used for operation of this protocol Error Control Error Ctrl This option sets the type of error control to be negotiated with the far end modem during train up Normal turns all error control off and makes allowances for flow control Reliable uses MNP error control If the far end does not support error control then the call is terminated When Auto Rel is selected the ISU Express attempts to use error control If the far end does not use error control then normal operation is used Force MNP allows only MNP error corrected calls to connect Force LAPM allows only LAPM V 42 error corrected calls to connect Compression No Compression turns off the compression algorithms in the ISU Express Compress MNP5 enables MNP5 data compression Compress V42 enables V 42 bis data compression MNP5 or V42 allows the ISU Express to negotiate MNP5 or V 42 bis compres sion Microcom Network Protocol Block Size MNP Size When error control is enabled this option sets the amount of data sent in a single packet during MNP error controlled stream operation Options available are 64 128 192 and 256 bytes DSU 57 6 ASYNC The DSU 57 6 ASYNC protocol allows the ISU Express to communicate asynchronously at 57 6 kbps with ADTRAN 2 wire 61202 08111 1 ISU Express User Manual 39 Chapter 4 Configuration and 4 wire Switched 56 DSU products In addition the ISU Express communicates with other 150 o
60. equipment supporting the BONDING protocol The protocol allows use of both synchronous and asynchronous bit rates When the ISU Express uses the BONDING mode 1 protocol it must make two separate ISDN phone calls to seize control of both ISDN bearer channels The protocol corrects any delays existing between the two bearer channels and presents a single high speed data channel to the DTE For successful high speed operation both the near and far end DCE need to be configured to use the BONDING mode 1 protocol The BOND ING mode 1 protocol negotiation phase has numerous timers to allow transmission delays due to satellite hops international calls etc The timers may be adjusted if necessary by entering ISU Express User Manual 61202 081L1 1 61202 08111 1 Chapter 4 Configuration into the BONDING mode 1 submenu The timers are defined as follows TXINIT This option specifies the length of time the originating endpoint attempts to detect the BONDING negotiation pattern from the answering endpoint before deciding the BONDING call has failed In general this timer value should be left at the factory default setting of 10 seconds Select from values of 1 2 5 10 default 20 50 100 and 200 seconds TXINIT 10 sec def This option specifies the length of time both endpoints attempt to detect the BONDING frame pattern when a call is connected before deciding the BONDING call has failed In general this timer valu
61. ervice offered from an Northern Telecom DMS 100 request a multipoint line with the following features Line Types Ses oe detenti meets Basic Rate Functional Electronic Key Telephone Sets EKTS No Call Appearance Handling CACH sse No Non Initializing Terminal eet cipem Circuit Switched Service eie etie tein tacens Yes Packet Switched Servicesin raei eiaei aaas iaia Eaa No Dynamic Bearer Service Circuit Switched Voice and Data Permitted on any B Channel Packet mode data not permitted Identify your long distance carrier of choice and request circuit switched 64 kbps Clear Channel access if possible Long distance access should be provided through Ensure that the telephone company provides you with the following information for configuring the ISU Express ISDN switch type ISDN switch protocol version ISDN phone number s Service profile identification SPID number s with prefixes and suffixes if applicable if ISDN line is mulitpoint 108 ISU Express User Manual 61202 081L1 1 Appendix F Ordering ISDN Without IOCs LOCAL INTERFACE REQUIREMENTS Physical Interface Local Service 61202 081L1 1 e ISDN Basic Rate Interface BRI line U interface reference point 2B1Q line coding ISDN service must be provided from one of th
62. essages 61202 081L1 1 This appendix lists the status line messages and their definitions Messages shown entirely in capital letters are generated by the ISDN network Messages with lower case letters are generated by the ISU Express Call Connect B1 Bearer channel 1 is connected and is active Call Connect B2 Bearer channel 2 is connected and is active CALL The ISU is calling phone number DEACTIVATED The network interface is not active DISCONNECTED The network has activated layer 1 but layer 2 is inactive To activate the unit a setup message must be sent or received DISCONNECTING The current phone call is being disconnected hung up Getting 1 The ISU is receiving its first TEI from the network ISU Express User Manual 79 Appendix Current Status Messages 80 Getting 2 The ISU is receiving its second TEI from the network ISDN 1 Ready The ISU is connected to an ISDN 1 compliant switch and is ready to place receive calls Link down The network interface is not active Link In Sync The ISU has successfully connected to the network but is waiting for the switch to issue the ACT bit LPBK DTE The DTE connector is looped back in the DTE direction LPBK Netw The ISU Express is in a customer initiated loopback LPBK Protcl Net The ISU Express has been commanded to perform a loopback in the network direction after letting the incoming data pass throu
63. etween two protocols pick the protocol closer to the top of the list for the circuit type 5 Available only in ISU Express with V 32 bis analog modem option ISU Express User Manual 61202 081L1 1 Chapter 2 ISDN Ordering Codes 10 61202 081L1 1 ISDN is a very complex service with many network options Obtaining service from your local telephone company and long distance providers is sometimes complicated ISDN Ordering Codes IOCs have been developed to simplify the process of ordering ISDN service The ISDN Solutions Group a consortium of ISDN equipment vendors service providers and Bellcore established these codes to represent predetermined line configurations for ISDN Basic Rate service for specific applications ADTRAN and Bellcore have registered and tested eight generic IOCs These IOCs are supported by all major local exchange carriers as well as several independent carriers After reviewing the following list order your ISDN line from the local service provider Request the appropriate IOC for your application If your local service provider does not support IOCs see the appendix Ordering ISDN Without IOCs Capability S previously Generic Data M ordering code is recommended for ISU Express applications It is the most feature rich and supports most voice and data applications However in some areas ISDN tariffs may warrant the use of ordering codes with less features For example in a particular regio
64. external transmit clock signal at the DTE EIA 232 connector ETC pin 24 This signal is echoed by ISU Express User Manual 61202 081L1 1 NOTE Chapter 4 Configuration the ISU Express to the transmit clock signal on the DTE EIA 232 connector TC pin 15 This option is provided for situations where equipment con nected to the ISU Express DTE connector cannot slave to the ISU Express provided clock The ISU Express uses the U interface as the frequency standard when it must provide a synchronous receive or transmit clock The externally provided clock must be of the same average frequency as the clock that the ISU Express would provide if internal clock were selected If this is not the case bit errors may occur SETTING PROTOCOL OPTIONS 61202 081L1 1 The ISU Express communicates with many different types of telecommunication equipment including other ISU Express units ISDN terminal adapters Switched 56 DSUs BONDING mode 1 compatible inverse multiplexers PPP compatible bridges routers and V 32 bis compatible analog modems optional Communicating between such diverse types of equipment requires the use of various rate adaptation protocols to support various bit rates and DTE settings The ISU Express supports the following rate adaptation protocols BONDING mode 1 Bandwidth on Demand Interoperability Group TLINK Dial DDS DSU CSU SAP Simple ADTRAN Protocol Clear Channel no rate adaption protocol
65. gh the current protocol NEC Ready The ISU Express is connected to an NEC switch and is ready to place receive calls NET EOC LOOPBACK The ISU Express has been commanded to perform an ISDN loopback toward the network NET REM LOOPBACK The ISU Express is performing a V 54 or DDS latching loopback toward the network Ready The unit is ready to make or accept a call ISU Express User Manual 61202 081L1 1 Appendix Current Status Messages Register SPID 1 The ISU Express is registering its first SPID with the network Register SPID 2 The ISU Express is registering its second SPID with the network RINGING The phone number just dialed is ringing nnnn rate adaption is running at the bit rate specified nnnn Quitting A rate adaption protocol is turning off xxxxx Ready A rate adaption protocol is ready Setup A rate adaption protocol is setting up can be any of the following 61202 081L1 1 BONDING Bandwidth on Demand Industry Users Group protocol CLEAR CHAN No rate adaption protocol allows use of maximum bandwidth DSTOP DSU 57 6 Async rate adaption protocol DSU57 6 ADTRAN DSU asynchronous protocol FALLBACK FALLBACK rate adaption protocol SAP Simple Adtran Protocol ISU Express User Manual 81 Appendix Current Status Messages TLINK TLINK rate adaption protocol V120 V 120 rate adaption protocol 82 ISU Express User Manua
66. hem to check the line translation ensure the line supports dynamic TEI allocation and verify the SPIDs Tell them that you have an NT1 and terminal adapter device connected to the line ISU Express User Manual 61202 081L1 1 Chapter 5 Troubleshooting IF YOU ARE UNABLE TO CONNECT CALLS See Table 5 A for corrective actions if you cannot connect calls Table 5 A Troubleshooting Calls Condition Corrective Action The Loop LED remains on but calls cannot be placed Most likely a problem exists in the software setup translation atthe CO switch or the network setup in the ISU Express Local voice calls can be transmitted but data calls to the same exchange cannot The line is probably not set up to support data calls Local data calls go through but long distance data calls do not Ensure the far end is working If not already doing so place the call explicitly specifying the prefix of the long distance service for example 10288 for AT amp T If this does not work then the problem is probably the long distance service provider Another possibility is that the local service provider is not providing long distance access Data calls can be made but BONDED data calls cannot There may be a problem in the software setup translation atthe CO switch or the network setup in the ISU Express Another possibility is that the data circuits provided are not good enough to support the BONDING
67. i eri iae 65 If the ISU Express Does Not Read Ready sess 65 If You ar Unable to Connect tentent tte 71 Chapter 6 73 Specifications and Features pereat e seine eiecit 73 Appendix A Loop Status Messages sessi tetetntntntn tn tenetntn tete tensnanun 77 Appendix B Status Buffer 79 Appendix C S Register suenan 85 Appendix D Connector Pinouts eese eese te tenetntntn tete 95 Appendix E Ordering ISDN Without IOCS essent tnttnnnnnn 97 ISDN Service Ordering Information i 98 Local Interface Requiremerits 4 eerte etcetera e 101 Physical Interface 101 Local Service Requirements nesrin te EEES 101 Long Distance Service Requirements 102 Deciding What Services to Order 102 5ESS Custom Line Additional Parameters sse 103 DMS 100 Protocol Version 1 Line Additional Parameters 105 iv ISU Express User Manual 61202 081L1 1 Table of Contents After Your Service 18 Installed vase a vete et eerte event 106 Setting Up the
68. ien eme edere ISDN dial line ISDN Audio Data protocol ertt ente V 32 bis DIE DOG Asynchronous Dit 8 Parity bits sce nee pde db ter ind nens None 1 DTE connector bit rate eene 19 2 kbps DTE HOW control teretes Hardware RTS TDG iae 1 msec delay CTS Bre een te ite ere teme rete tenia Follows RTS COMMON Auto reliable MNP COmpreSSiOfi se deesse eripe Compress MNP5 MNP block SIZE 256 bytes ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration This option is only used with the ISU Express with V 32 bis modem option NOTE Dial57 6 asyn When the ISU Express is configured for Dial57 6 asyn service the following parameters are automatically preset Service LY PO siasii titans ISDN dial line ISDN call ty pe 64 kbps data Data Protocol V 120 DTE reir Asynchronous Data 8 Parity bits 56i Stop M 1 DTE connector bit rate eere rina 57 6 kbps DTE low control cete tnter ret None RIS Mn E 1 msec delay CTS Mine sac Forced on Dial115 2
69. ifies that the characters should be 7 bit ASCII with the 8th bit ignored it may be either 0 or 1 The first byte of each packet contains all one bits A FF HEX and the second byte of each packet the C byte is either 13 HEX or 03 HEX if not the final packet 61202 081L1 1 ISU Express User Manual 55 Chapter 4 Configuration NOTE Select V 25 HDLC flags if your terminal equipment requires idle state flags SYNC V 25 BISYNC Dialing This setting allows for V 25 bis messages in byte synchronous format BISYNC V 25 bis specifies that the characters should be ASCII 7 bits and odd parity This setting allows synchronous DTE which does not use HDLC to support serial in band dialing THE STATUS BUFFER TEST OPTIONS 56 The status buffer can be displayed at any time after entering the menu structure Pressing Ctrl V displays the ISU Express Status menu The last 16 status messages generated during the option of the unit are displayed with relevant status items See Figure 4 1 and the section Status Messages The most recent status message appears as Status 1 with the remaining status messages appearing in descending order Press Ctrl C to return to the Configuration menu The ISU Express provides the following test options Loopback DTE Loopback Network Loopback Protocol Loopback Remote Test Remote The ISU Express can also be configured to ignore or accept V 54 and DDS commands Loopback DTE
70. iguration Local Directory Number LDN NOTE Dial Options NOTE 61202 081L1 1 This option allows the entry of 0 1 or 2 LDNs The LDN is used when placing or receiving calls The LDN is the local phone number assigned to the line LDN 1 LDN 2 5 5 512 12 5551212 Disconnect the network interface from the unit before initially entering or altering the SPIDs and LDNs The ISU Express supports two in band dialing options described as follows The option will not take effect until exiting the VT 100 interface Ctrl X AT commands Configuring the ISU Express for AT commands enables in band dialing over the DTE interface using asynchronous AT com mands AT commands can be used to set up the ISU Express as well as establish and end a call V 25 bis Configuring the ISU Express for V 25 bis enables in band dialing over the DTE interface using asynchronous or synchronous V 25 bis commands V 25 bis can be used to establish and end a call In synchronous mode the ISU Express is an ISDN version of a synchronous modem For configuration or troubleshooting the unit requires connection to an async VT 100 terminal and the dial option must be set to AT Commands After the unit is completely configured set the dial option to V 25 bis and exit the VT 100 terminal interface The unit is now ready to respond to V 25 bis dialing commands If it is necessary to re enter the VT 100 interface for re configuration troubleshooting or to vie
71. ination 1 A unit that provides physical and electromagnetic termination of the U interface 2 wire transmission line Converts between layer 1 formats used at the U and T reference points and performs some maintenance functions Network Termination 2 A unit that provides switching and concentration of subscriber lines at the S interface This unit performs the functions of a customer premises switch or multiplexer to multiplex B channel s and D channel s onto one physical path and to route calls to the appropriate B or D channel phase jitter PRA In telephony the measurement in degrees out of phase that an analog signal deviates from the reference phase of the main data carrying signal Often caused by alternating current components in a telecommunications network Primary Rate Access Connects high capacity CPE such as PBXs to the network In the U S this is composed of twenty three 64 kbps channels and one 64 kbps D channel Also known as primary rate interface PRI point to point Describes a circuit connecting two points directly with no intermediate processing nodes or computers although switching facilities could exist A type of connection that links two logical entities i e phone line circuit 61202 081L1 1 ISU Express User Manual 125 Glossary regenerate To restore a signal to original shape Signals need to be restored because they become distorted and acquire noise as they travel or are transmitted Anal
72. ing of multiple data channels onto a single transmission medium Any process through which a circuit normally dedicated to a single user can be shared by multiple users Typically user data streams are interleaved on a bit or byte basis time division or separated by different carrier frequencies frequency division multipoint circuit A circuit consisting of three or more stations connected directly electrically narrowband ISDN A collective term for BRA basic rate access and PRA primary rate access at speeds up to 1 544 Mbps NCTE Network Channel Terminating Equipment Equipment considered necessary for terminating a telephone circuit or facility at the customer premise on the regulated side of the demarcation FCC decisions have established that most NCTE is CPE and may therefore be supplied by third party vendors 124 ISU Express User Manual 61202 081L1 1 Glossary NEXT Near End Crosstalk Unwanted energy transferred from one circuit to an adjoining circuit Occurs at the end of the transmission link where the signal source is located The absorbed energy is usually propagated in the direction opposite to the absorbing channel s normal current flow Caused by high frequency or unbalanced signals and insufficient shielding non ISDN line Any connection from a CPE to a SPCS that is not served by D Channel signalling non ISDN trunk NT1 NT2 Any trunk not served by either SS7 or D Channel signalling Network Term
73. ing timer TANULL expired non BONDING equipment attempted to call into the ISU Express while optioned for BOND ING TEMPORARY_FAILURE The network has temporarily failed try the call again TIMER_EXPIRY Call control error TUNK ErrorOne Catastrophic TLINK error TXADDO1 expired Bonding timer TXADD01 expired probably making a long distance call to a foreign country adjust timer value to correct TXFA1 expired Bonding timer TXFA1 expired other vendor s BONDING equipment did not operate properly ISU Express User Manual 91 Appendix Status Buffer Messages 92 TX FLOW ERROR Flow control needs to be enabled TXFA2 expired Bonding timer 1 expired other vendors BONDING equip ment did not operate properly TXINIT ex pired Bonding timer TXINIT expired called non BONDING equip ment UNASSIGNED NUMBER The phone number dialed does not exist Unknown AT amp cmd User issued an unknown AT command UNSPECIFIED CAUSE Received a cause message from the network that is not under stood Unsupported baud The ISU Express does not support the negotiated baud rate USER BUSY The dialed number is busy V120 timeout The far end unit is not set up for V 120 V120 connected The V 120 rate adaption successfully connected to the far end unit WRONG MESSAGE Call control error WRONG MSG FOR STATE Call control error ISU Express User Manual 61202 081L1 1 Appendix D S Register List 92 BR
74. isable 64 loopback DTE 61 loopback network 62 loopback protocol 62 loopback remote 63 M MNP block Size 39 more 47 132 ISU Express User Manual NEBE FEBE 64 network connection 15 no answer tone default 28 off with link down 33 off with LOCD 33 ordering ISDN from your telephone company See Appendix E outgoing fone 29 parity bits 34 protocol options 35 Q quick setup 43 Dial 112K sync 44 Dial 128K sync 45 Dial 56K sync 43 Dial 64K sync 44 Diall 15 2 asyn 46 Dial57 6 asyn 46 fallback 57 6k 47 more 47 factory setup 43 48 128 master 48 leased 128K 47 V32 19 2 async 45 R rate adaption protocols see Table 4 A 36 recommended operating modes 9 Table 1 B 9 recommended operating protocols See Table 1B redial last number 50 RTS options 32 61202 081L1 1 5 SAP 40 setting answer tone always tone 29 incoming tone 29 no answer tone default 28 outgoing tone 29 setting auto answer disabled 28 dump all calls 28 enabled 28 setting DTE options for asynchronous Opera tion CD options 32 CTS options 32 data format Data Bits 34 stop bits 34 DSR options 33 DTR options 33 RTS options 32 setting DTE options for asynchronous opera tion bit rate 32 CD options 32 data format 34 flow control 33 setting DTE options for asynchronous opera tion data format parity bits 34 setting DTE options for synchronous operation transmit clock 34 setting protocol options BONDING mode 1 36
75. ive than data service Selecting an Audio call type guarantees a digital end to end ISDN connection Use the Audio call type with the optional V 32 bis analog modem Data 56kbps Data 56kbps directs the call control software to request a 64 kbps data circuit that is rate adapted to 56 kbps Data 56kbps is intended for use in circumstances where interoperability with Switched 56 service is desired Data 64kbps The default call type for ISDN service is Data 64kbps This directs the call control software to request an unrestricted 64 kbps circuit Service Profile ID SPID NOTE The SPID is a sequence of digits used to identify ISDN terminal equipment to the ISDN switch The SPID is assigned by the local phone company when the ISDN line is installed and it usually looks similar to the phone number Obtain SPIDs from your telephone administrator or local telephone representative The number of SPIDs required 0 1 or 2 depends on how your ISDN line is configured For instance a point to point line has no SPID Multipoint lines may have one or two SPIDs The ISU Express uses the presence of SPID 1 to determine if the line is multipoint If the line has only one SPID then it must be entered in SPID 1 Example SPID 1 SPID 2 0192243230 0192243240 PREFIX SUFFIX National ISDN 1 switches require the addition of a two digit terminal identifier TID at the end of the SPID ISU Express User Manual 61202 081L1 1 Chapter 4 Conf
76. l of the ISU Express provides connection to either network service For the ISU Express S T with the jack labeled ISDN BRI S T an NT1 must be connected between the Express and the network Dial operation uses the ISDN Basic Rate interface and allows the ISU Express to dial out over the ISDN network The leased mode of operation supports dedicated 2B1Q data service at rates up to 128 kbps by using a nailed up circuit or a permanent connection between end points This connection could be a limited distance modem or a point to point connection See the appendix Connector Pinouts for network connection pin assignments ISU Express User Manual 15 Chapter 3 Installation DTE DATA CONNECTION Data terminal equipment DTE is connected to the ISU Express by using the EIA 232 interface connector The maximum recom mended cable length is six feet The pin assignments for the DTE interfaces are shown in the appendix Connector Pinouts TELEPHONE CONNECTION Basic Telephone Service The ISU Express supports an analog DTMF telephone type AT amp T 2500 with the optional POTS interface part number 1202081L3 L4 L5 L10 or L11 The telephone or other analog device like a fax machine or modem plugs into an RJ 11 jack labeled PHONE located on the rear of the unit Using a multipoint line allows the POTS and data port to have unique phone numbers On the 1202081L3 and 14 the SPID pro grammed into SPID2 is associated with the analog te
77. l 61202 08111 1 Appendix Status Messages 61202 081L1 1 Messages shown entirely in capital letters are generated by the ISDN network Messages with lower case letters are generated by the ISU Express Answer 1 2 The ISU answered a call on either the first or second channel The calling phone number is displayed if available ACCESS INFO DISCARDED The network was unable to deliver access information to the far end Back to online ISU Express went back on line Bad async BPS The BONDING protocol determined that the selected asynchro nous bitrate is not supported Bad AT bit field User issued an AT command with an argument that was out of range Bad B channel Bonding negotiation determined the delay in one of the Bearer channels was uncorrectable Bad call type ISU Express placed a call with an improper call type ISU Express User Manual 83 Appendix Status Buffer Messages 84 Bad DTE baud The DTE bit rate does not match a valid bit rate for the protocol selected Bad DTE bps Bonding negotiation determined the chosen DTE bit rate is invalid BAD_INFO_ELEM Call control error Bad phone number ISU Express attempted to call an invalid phone number Bad TLK Version Invalid TLINK parameters found during end to end negotia tions BaudRate ISU Express does not support the negotiated TLINK baud rate BEAR AVAIL The bearer channel requested by the user is not available
78. lephone On the 1202081L5 SPID1 is phone number 1 and SPID2 is phone number 2 Supplementary Services DTMF Keypad 16 Supplementary services such as call holding three or six way conferencing call transfer and call waiting are fully supported by the ISU Express on a touch tone telephone Table 3 A explains how the flash hook is used for handling multi call situations The following functions are performed on a touch tone phone Disable call waiting Press 0 Enable call waiting Press 1 Redial last number Press 5 ISU Express User Manual 61202 081L1 1 Chapter 3 Installation Table 3 A Using the Flash Hook Calling a second party with an active call Flash hook to place active call on hold and dial new number Hanging up will terminate the call Answering an incoming call with an active call at call waiting Flash hook to place active call on hold and answer incoming call Hanging up will terminate both calls Conferencing Calls With an outgoing call on hold and a second outgoing call active flash hook to conference calls Hanging up will transfer second call With an incoming call on hold and outgoing call active flash hook to conference calls Hanging up will transfer calls With two incoming calls one on hold and one active flash hook to conference calls Hanging up transfers calls Answering calls on hold and holding incoming active calls Flash hook places the incoming c
79. lephone company first and find out which of the services listed on the following pages are provided The following form has been designed to assist you Complete and FAX this form to your telephone company to request the proper type of ISDN telephone line for use with the ADTRAN ISU Express 61202 081L1 1 ISU Express User Manual 105 Appendix F Ordering ISDN Without IOCs ISDN Service Ordering Information for the ADTRAN ISU Express For ADTRAN ISU Express applications the following guide can be used as an aid in ordering basic ISDN service from your local telephone company The ADTRAN ISU Express ISDN Service Unit partnumbers 120005111 and 1200051L3 includes NT1 and Terminal Adapter functionality and supports data at rates up to 128 kbps The ADTRAN ISU Express part numbers 1200051L2 and 120005114 is a traditional Terminal Adapter and do not include NT1 functionality The ADTRAN ISU Express International partnumbers 1200051L5 and 1200051L6 also donot include NT1 functionality Name Address City State Zip Code Daytime telephone number Request an ISDN Basic Rate Interface BRI line e U interface reference point e 2B1Q line coding e 2B D Service supports up to 128 kbps The ISU Express supports the following switch types and software protocols AT amp T 5ESS Custom 5E6 and later software National ISDN 1 NTI DMS 100 BCS 32 and later software PVC1 National ISDN 1 PVC2
80. leshooting With the ISU Express connected to the line and powered up talk to your service provider s repair group and tell them you have an ISDN basic rate line that appears physically okay but is unable to register its SPID s Ask them to check the line translation ensure the line supports dynamic TEI allocation and verify the SPIDs Tell them that you have an NT1 and terminal adapter device connected to the line 6 Ifthe Loop Status in the ISU Express Status menu continu ously reads Getting TEI 2 the ISU Express has completely initialized the first phone number but is unable to establish logical layer 2 for the second phone number The problem is in one or both of the following places e The ISU Express software setup The telephone service provider s software setup To isolate the problem perform the following procedure A Ensure the line is multipoint with two phone numbers B Ensure that the ISU Express is set up with the correct SPID and LDN For example 4 SPID1 205722704646 5 SPID2 205722704647 6 LDN1 2704646 7 LDN2 2704747 Try swapping SPID1 with SPID2 and LDN1 with LDN2 Determine if the problem is the second phone number or the quantity of phone numbers If possible try another piece of functioning ISDN equipment with a U interface on the line With the ISU Express connected to the line and powered up talk to your service provider s repair group and tell them you have an ISDN basic rat
81. ll range of enhanced services supporting voice data and image applica tions through standard interfaces over a single telephone wire ISDN provides a means of integrating these services and mod ernizing communication networks for information movement and management efficiency THE ADTRAN ISU EXPRESS The ISU Express ADTRAN ISDN Service Unit is a stand alone device that connects data terminal equipment DTE and dual tone multifrequency DTMF telephone equipment to the ISDN network or to a leased line The ISU Express includes built in network termination and terminal adapter functionality The ISU Express meets the Microsoft Windows 95 Plug and Play specifications The file MDMADTN INF is required To obtain this file contact ADTRAN technical support as shown on the inside back cover of this manual See Figure 1 1 for an illustration of the ISU Express 61202 081L1 1 ISU Express User Manual 3 Chapter 1 Understanding ISDN and the ISU Express The ISU Express provides four basic functions 1 High speed synchronous ISDN modem using one or both bearer B channels up to 128 kbps utilizing BONDING protocol Part numbers 120208111 L3 L4 L5 L8 L9 L10 and L11 2 High speed asynchronous ISDN modem using one or both B channels up to 115 2 kbps no flow control using BOND ING protocol Part numbers 120208111 L3 L4 L5 L8 L9 L10 and L11 3 Analog V 32 bis V 42 bis modem using one B channel to communicate t
82. mand Backspace character value 8 Transmit data siirsin Normal clock source Factory default erases all stored phone numbers SPIDs and LDNs ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration VT 100 TERMINAL DIALING OPTIONS After starting the terminal emulation package type AT V and press Enter Enter the Express Dial menu by pressing Ctl D Hang up line Terminates current call Dial number Allows a number to be entered and dialed Pressing Enter after entering a number causes the ISU Express to dial the number and save the dialed number in storage location 9 for redialing purposes Redial last number Allows redial of the last number called or attempted This number was saved in storage location 9 from the last attempted phone call Answer call Allows selective answer of incoming calls when the Auto Answer is configured for disable Auto Answer is described in the section Auto Answer in the chapter Configuration Dial stored number Allows the dialing of one of ten stored phone numbers Store Review number Permits entry and review of stored numbers 61202 081L1 1 ISU Express User Manual 51 Chapter 4 Configuration AT Commands 52 When AT commands are selected for Dial Options the DTE port becomes dual purpose First while a call is not established the port accepts AT commands During this time the CD signal is inactive Second when a call is
83. mber of circuit switched voice CSV calls Circuit switched voice bearer channels Number of circuit switched data CSD calls Circuit switched data bearer channels Terminal type data bearer channels Multipoint lines require the phone company to create a SPID for each phone number on the line With the exception of the ability to spread two calls across two phone numbers multipoint lines offer no special features and may create complications How ever if you use a multipoint line the parameters are similar to the point to point line except for the SPIDs The 5ESS switch can provide a variety of supplementary features which the ISU Express may not support Enabling these features may have undesirable consequences Avoid the following features Packet Mode Data Multiline hunt groups Electronic key telephone set EKTS Shared directory numbers ntercom groups Network resource selector modem pools Message waiting 61202 081L1 1 ISU Express User Manual 111 Appendix F Ordering ISDN Without IOCs Hunting InterLATA competition Accept special type of number DMS 100 Protocol Version 1 Line Additional Parameters The Northern Telecom DMS 100 telephone switch supports a proprietary ISDN D channel call control protocol called 1 which is based on CCITT recommendations The ISU Express configured for switch type DMS 100 is functional on lines providing this protocol on DMS 100 switches with softwa
84. n there may be additional monthly expense associated with having voice service on each B channel If you have a data only application then Capability R previously Generic Data I may be more cost effective ISU Express User Manual 11 Chapter 2 ISDN Ordering Codes IOCs ADTRAN has registered the following ISDN ordering codes to support a variety of tariffs and applications Capability S previously Generic Data M Applications 2B service Both B channels alternating voice and data Two directory numbers Example 150 Express with POTS and Modem Option P Ns 1202081L1 L3 L4 L5 L8 L9 L10 L11 1152 or 128 kbps data 56 64 kbps data with voice or modem capability Generic 115 2 128 kbps data transfer including remote access and LAN WAN connectivity and telecommuting Capability previously Generic Data 1 Applications 2B service Data only Two directory numbers Example 150 Express data only versions P Ns 120208111 L8 and L9 115 2 or 128 kbps data only no voice capability 115 2 or 128 kbps data transfer applications including remote access and LAN WAN connectivity telecommuting B1 previously Generic Data B 12 1B service Data only One directory number ISU Express User Manual 61202 081L1 1 Chapter 2 ISDN Ordering Codes IOCs Capability C previously Generic Data C 1B service Alternating voice and data One directory number I2 previously Generic
85. negotiation process If the line has two phone numbers make sure the second SPID and LDN are entered correctly in SPID2 and LDN in the ISU Express Check with the local service provider to ensure thatthe line supports two data calls Looking atthe ISU Express status log buffer shows what sequence of events occurred What you need to know is which piece of equipment first caused the BONDING process to terminate The status logs from both ends may be necessary to determine this 61202 081L1 1 ISU Express User Manual 67 Chapter 5 Troubleshooting 68 ISU Express User Manual 61202 081L1 1 Chapter 6 Specifications SPECIFICATIONS AND FEATURES 61202 081L1 1 This section describes the standard specifications and features incorporated in the ISU Express The ISU Express meets the Microsoft Windows 95 Plug and Play specifications The file MDMADTN INF is required To obtain this file contact ADTRAN technical support as shown on the inside back cover of this manual Network Interface 45 for ISDN Basic Rate U Interface or RJ 45 for leased 2B1Q service RJ 45 for ISDN Basic Rate S T Interface or RJ 45 for leased 2B1Q service L8 L10 DTE Interface EIA 232 Dialing Selections In band dialing V 25 bis AT commands Manual or automatic stored number dialing DTR assertion Data Rates Network 64 kbps one B channel 128 kbps two B channels DTE 300 bps to 115 2 kbps asynchronous 2400 bps
86. nes t nerit tete iere 52 Reading an S Registet om oe eme neptis d 52 Reading an S Register eaa eter 52 Changping an 5 o n o need ied 53 Changing a String 1 1 EEES 53 Dialing a Call Using the AT Command Processor sess 53 61202 08111 1 ISU Express User Manual iii Table of Contents Chapter 4 Configuration cont Configuring the ISU Express for V 25 bis In Band 59 SYNC V 25 Dialing iota 60 SYNC 25 HIDEC rte tette trier etant 60 SYNC V 25 BISYING re tereti tree 61 Status Buffet nier retenti ire irri 61 Test OPUONS rentre om eni 61 Loopback DTE iiie tette tte deeper tone rte attend 62 Loopback Network ebat eene tre eth ite eet 62 Loopback Protocol 62 Loopback entier dne e dioe tein ates 63 I 63 Loopback 5 016 erue reds 64 Near End Block Errors Block Errors 64 Chapter 5 Troubleshooting 20 65 Tf Self Test fails eene metere eiie reete rtt contr
87. o analog data service for example Bulletin Board Systems ISU Express with V 32 bis V 42 bis modem option part number 120208114 4 Plain old telephone service POTS for DTMF analog devices telephones modems fax machines etc The ISU Express can ring up to two POTS devices when the cable distance between the units is no greater than 100 feet ISU Express POTS option part number 1202081L3 L4 L5 L10 and L11 From the network ISDN is delivered by a single 2 wire 2B1O U interface which is connected directly to the ISU Express ISDN network termination is designed into the ISU Express eliminat ing the need and expense of a separate NT1 For network testing the ISU Express responds to NT1 test commands from the telephone company central office CO E ASU Express EST BOA LOT REMAOOR PWR BS CS RO CD O aaao QA AA QA T gt 4 ISU Express User Manual 61202 081L1 1 61202 08111 1 Chapter 1 Understanding ISDN and the ISU Express The ISU Express transmits data over EIA 232 interface with a maximum cable length of six feet The ISU Express performs at synchronous data transfer rates of 2400 bps to 128 kbps and asynchronous rates of 300 bps to 115 2 kbps At rates over 64 kbps the BONDING Bandwidth on Demand Interoperability Group delay equalization protocol synchronizes data over the two 64 kbps B channels The ISU Express supports
88. of a certified connector assembly telephone extension cord Compliance with the above conditions may not prevent degradation of service in some situa tions Repairs to certified equipment should be made by an authorized Canadian mainte nance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunica tions company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas Caution Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or an electrician as appropriate The Load Number LN assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent overloading The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the Load Numbers of all devices does not exceed 100 Table of Contents Quick Startup Guide eese eese 1 Chapter 1 Understanding ISDN and the ISU Express 2 eerte 3 Ies
89. og signals cannot be regenerated because it is very hard for telecommunications equipment to distinguish between unwanted noise and wanted noise Digital signals can be more easily regenerated since they consist of 1s and Os If digital signals are flattened or distorted a simple logic circuit can restore the signal to the original clean square shape R reference point Non ISDN TE2 terminal equipment connects to ISDN at the R Reference point through a terminal adaptor RS 232 C An EIA specified physical interface with associated electrical signalling between DCE and DTE The most commonly employed interface between computer devices and modems RS 422 A Electrical characteristic of balanced voltage digital interface circuits RS 423 A Electrical characteristics of unbalanced voltage digital interface circuits RS 449 General purpose 37 position and 9 position interface for data terminal equipment and data circuit terminating equipment employing serial binary data interchange RS 449 1 Addendum 1 to RS 449 serving area Region surrounding a broadcasting station where signal strength is at or above a stated minimum The geographic area handled by a telephone central office facility Generally equivalent toa LATA S interface S Reference point The interface that connects an ISDN terminal TE1 or Terminal Adapter TA to the NT2 reference point as defined in the I 411 Recommendation SPCS Stored Program Controlled Switch A digi
90. ol the Loopback Network test will be run otherwise the Loopback Protocol will run Loopback Protocol Allows data to be looped back toward the network after passing 61202 081L1 1 ISU Express User Manual 57 Chapter 4 Configuration NETWORK through a selected protocol such as T Link or BONDING See Figure 4 2 for loopback points Using the built in menu press Ctrl T then select Loopback Protocol Front panel execution of this test may be started by pressing Select until the LOC LED is off and the REM LED remains on Press Test to start the test to end the test press Test again or press Select If Clear Channel has been selected as protocol the Loopback Network test will be run otherwise the Loopback Protocol will run Figure 4 2 ISU Express Loopback Points Loopback Remote Test Remote 58 Allows the ISU Express to issue a V 54 in band loopback com mand to a far end unit while still accepting data from the DTE connector This provides bit error rate testing of an entire link using an external BERT tester To use this feature configure both units for Clear Channel operation The far end unit must be able to respond to V 54 loopback commands See the section Setting Protocol Options to option the unit for Clear Channel operation Using the built in menu press CTRL T then select Loopback Remote Front panel execution of this test may be accomplished by using Select and Test buttons on the front of the ISU
91. oop Rate Data 64Kbps 1 DIE Rate 9688 DTE Format Asynchronous EMPTY Test Status No Test EMPTY Self Test Passed EMPTY Software Rev ISU Ver A 13 EMPTY Checksum fa23 EMPTY Loop Status Link down EMPTY Num Dialed No Call EMPTY RTS ON EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY EMPTY Ctl U STATUS Ctl T TEST Ctl C CONFIG Ctl D DIAL 1 EXIT OFF OFF ON NUNNA Status Menu Figure 4 1 Terminal Interface Menu Screens 61202 081L1 1 ISU Express User Manual 23 Chapter 4 Configuration ISU EXPRESS Test Menu TEST ENABLE DISABLE TESTS 1 gt Loopback DTE gt Lpbk 054 Accepted 2 gt Loopback Network 3 gt Loopback Protocol 4 Loopback Remote 5 gt Test Remote 6 gt NEBE FEBE Menu option Ctl U STATUS Ct1 T TEST Ct1 C CONFIG Ct1 D DIAL 1 EXIT Test Menu ISU EXPRESS Dial Menu Hang up line Dial number Redial last Answer Call Dial stored Store Review Menu option Ct1 U STATUS Ct1 T TEST Ct1 C CONFIG Ctl D DIAL 1 EXIT Dial Menu Figure 4 1 Terminal Interface Menu Screens cont 24 ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration USING ISDN BASIC RATE SWITCHED SERVICE This section explains how to configure the ISU Express using the built in menu system with ISDN basic rate switched service After starting the terminal emulation package type AT V and press Enter Enter the Configuration menu by typing Ctl C Config
92. operation of the DTE connector clear to send CTS line 0 Follows RTS 1 Force CTS Controls operation of the request to send RTS line 0 1 ms delay 17 18 ms delay Controls the operation of the data set ready DSR signal on the DTE connectors 0 Force DSR on always 1 DSR off OOS Test 2 DSR off Link Down 3 DSR off Dial Up Controls the operation of the carrier detect CD line on the DTE connectors 0 Force CD on always 1 CD is active during a call normal operation 2 Off with LOCD 3 Off link down Determines how the ISU Express responds to changes in DTR This is a bit mapped register 0 Ignore 1 Force AT command mode when DTR is off 2 Dump incoming call when is off 4 Hang up incoming call when is off ISU Express User Manual 95 Appendix D S Register List 8 Hang up outgoing call when is off 16 Answer incoming call when DTR is on 32 Dial SNO when DTR is on 64 Dial SNO when DTR transitions from off to on NOTE 96 ISU Express User Manual 61202 081L1 1 535 DTE CONN Appendix D S Register List Determines which is the current operating DTE connector 2 232 connector S registers 36 through 38 require that the option V 32 modem board be installed S36 ERROR CORRECTION S37 M39 ssec te COMPRESSION S38 V32 BLOCK SIZE 61202 081L1 1 Sets the type of erro
93. or more informa tion Because different switches handle calls and Call ID differently use the following procedure to determine if your switch uses a seven or ten digit Call ID format or phone number 1 Select Ansr if SNO 9 under Call Screening 2 Store your seven digit number in SNO 3 Placea call to the ISU Express with the stored number to see ISU Express User Manual 29 Chapter 4 Configuration 30 Call Routing if it answers 4 Ifthe ISU Express does not answer the call look at the Call ID message in the Status buffer More than likely the Call ID number is a ten digit number 5 the number in SNO as it is displayed in the Call ID message and test Call Screening again The ISU Express can route incoming calls based on the call type This menu item only appears on an L3 L5 110 or L11 dual POTS Express configured for an ISDN point to point line All types DTE The Express routes all calls to the DTE Speech POTS Speech call are routed to the POTS interface Speech Audio POTS Speech and Audio call types are routed to the POTS interface ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration CONFIGURING THE ISU EXPRESS FOR LEASED DIGITAL SERVICE This section explains how to configure the ISU Express when using a 2B1Q Leased Digital service or a service that provides a permanent connection between end points Follow this step by step procedure to configure
94. other manufac turers BONDING equipment it may be necessary to lengthen this timer so that it matches TXADD01 Range 0 to 255 10 sec is default 542 BOND TXADD01 The number of seconds both endpoints wait for the additional call to be connected at the end of negotia tion before deciding the BONDING call has failed When dialing overseas it may be necessary to lengthen this timer to allow for lower call routing Range 0 to 255 50 sec is default 543 BOND number of seconds both endpoints attempt to equalize the network delay between the bearer channels before deciding the BONDING call has failed Range 0 to 255 50 sec is default 544 BOND TANULL number of seconds the answering endpoint attempts to detect the BONDING negotiation pattern from the originating endpoint before abort ing to clear channel mode It may be necessary to shorten this timer if the DTE equipment connected to the ISU Express also has timer constraints for completing non BONDING parameter negotiation Range 0 to 255 10 sec is default S45 BOND TCID The number of seconds both endpoints attempt to 98 ISU Express User Manual 61202 08111 1 Appendix D S Register List negotiate agreeable values for bearer channels and channel capacities before deciding the BONDING call has failed Range 0 to 255 5 sec is default 546 V25 MODE
95. pre 61202 08111 1 ISU Express User Manual 33 Chapter 4 Configuration sented to the DTE interface only when RTS is asserted Software Flow control uses XON XOFF to control data transferred between the DTE and the ISU Express Selecting No Flow Ctrl disables flow control Data Format for Asynchronous Data Data Bits Parity Bits Stop Bits Use the following options allow the user to select the format of the asynchronous data A frame consists of a start bit 7 or 8 Data bits 0 or 1 Parity bit and 1 to 2 Stop bits These options select the number of data bits in each asynchro nous frame A frame has 7 or 8 data bits The None option selects no parity bits in each asynchronous frame A frame has 0 or 1 parity bit The Odd option selects an odd parity bit in each asynchronous frame The Even option selects an even parity bit in each asynchronous frame These options select the number of Stop bits sent in each asyn chronous frame A frame has 1 to 2 stop bits Transmit Clock for Synchronous Data 34 Selecting the Normal option causes the ISU Express to be the synchronous DTE interface transmit timing source Transmit data is timed from the transmit clock provided by the ISU Express on the DTE connector Normal clock is the normal mode of operation for the ISU Express With the External option selected the ISU Express slaves to an external transmit timing source The external clock is provided to the ISU Express by the
96. r control to be negotiated with the far end modem 0 Normal operation no error control Allows speed matching buffering and flow control 2 Reliable MNP error control If the far end does not use MNP error control then the call is ended 3 Auto reliable MNP error control The ISU Express attempts to use MNP error control If the far end does not use MNP then normal operation is used 4 Force LAPM Force the modem to connect only if V 42 LAPM error correct can be used 5 Force MNP Force the modem to connect only if MNP 2 4 error correction can be used Enables compression in the V 32 modem 0 Nocompression 1 MNP5 compression 2 V42 compression 3 MNPS V42 compression Sets the amount of data sent in a single packet during MNP error controlled stream operation 0 Block size of 64 bytes 1 Block size of 128 bytes ISU Express User Manual 97 Appendix D S Register List 2 Block size of 192 bytes 3 Block size of 256 bytes 540 BOND TXINIT Specifies the number of seconds the originating endpoint attempts to detect the BONDING negotia tion pattern from the answering endpoint before deciding the BONDING call has failed Range 0 to 255 10 sec is default 41 BOND Specifies the number of seconds both endpoints attempt to detect the BONDING frame pattern when a call is connected before deciding the BONDING call has failed When operating with
97. re version BCS 32 or later The ISU Express supports the following configurations on DMS 100 lines Multipoint with one phone number 1B D service Multipoint with two phone numbers for 2B D service The requirements for the DMS 100 multipoint line are defined in the sections Local Interface Local Service and in Table F B allin this appendix The line should have two service profiles with the following parameters to support BONDING Table F B DMS Features Line type Basic Rate Functional Electronic key telephone set 5 Call appearance handling Initializing terminal Bearer service Circuit Switched Voice and Data permitted Packet mode data not permitted Circuit switched service Packet switched service Protocol Version Functional PVC 1 TEI Dynamic 112 ISU Express User Manual 61202 081L1 Appendix F Ordering ISDN Without IOCs After Service Is Installed When the line is installed the following information will be provided by the local phone service provider A seven digit LDN for the line If the line is multipoint with two phone numbers two LDNs are provided If the line is multipoint a SPID is provided for each LDN Dialing information including the area code for the line Any special instructions for dialing outside lines dialing 4 digit local extension numbers and prefixes for using the desired long distance provider SETTING UP THE ISU EXPRESS FOR A NEW LINE 6120
98. re which automatically adjusts the asynchronous bit rate on the EIA 232 connector to match that of the connected terminal For any terminal rate from 300 bps through 115 2 kbps type AT and RETURN The ISU Express will adjust to that rate The ISU Express initiates a self test upon power up continu ously flashing LOC LED signifies a problem has been detected 61202 081L1 1 ISU Express User Manual 21 Chapter 4 Configuration When connected to an ISDN U line the LOOP LED illuminates and remains on This signifies that the ISDN U link is up and the ISU Express is ready for operation If the LOOP LED does not illuminate and remain on check your network connections If the LED remains off layer one of the link was not successfully established If the LOOP LED flashes continuously layer one of the link is established but layers two and three are not MENU NAVIGATION 22 NOTE NOTE When connected to an asynchronous VT 100 terminal or VT 100 terminal emulator use the built in ISU Express menu system for configuration To enter into the menus type AT V Return To go to a particular menu simply press the hot key for that menu The main branches of the menu tree and their hot keys are STATUS Ctl V TEST Ctl CONFIG Ctl C DIAL Ctl D Ensure the communications package is configured to pass these control sequences through to the ISU Express Figure 4 1 shows each menu as it appears on the VT 100 termi nal To
99. rface the same wire pairs that today bring a single voice circuit into your home or office See ISDN 23B D In ISDN also known as the Primary Rate Interface A circuit with a wide range of frequencies that is divided in twenty three 64 kbps paths for carrying voice data video or other information simultaneously It bears a remarkable similarity to today s T1 link except that T1 carries 24 voice channels In ISDN 23B D gives twenty three channels and one D channel for out of band signalling However in T1 signalling is handled in band See ISDN two wire circuit A transmission circuit composed of two wires signal and ground used to both send and receive information In contrast a 4 wire circuit consists of two pairs One pair is used to send One pair is used to receive All trunk circuits long distance are 4 wire A 4 wire circuit delivers better reception but also costs more All local loop circuits those coming from a Class 5 central office to the subscriber s phone system are 2 wire unless a 4 wire circuit is requested U interface A twisted pair subscriber loop that connects the NT1 reference point to the ISDN network as defined in the 1 411 Recommendation This interface provides Basic Rate Access with an operating frequency of 160 kbps and an information rate of 144 kbps Under U S regulations this also marks the line of demarcation between customer owned equipment and the public network V 32 9 6 kbps 2 wire duplex
100. rs NEBE and far end block errors FEBE occurring on the ISDN U interface A large count indicates problems with network equipment Using the built in menu press Ctrl T then select NEBE FEBE This test option is not available from the front panel ISU Express User Manual 59 Chapter 4 Configuration 60 ISU Express User Manual 61202 081L1 1 Chapter 5 Troubleshooting When the ISU Express powers up it performs an internal self test This takes about 10 seconds At the end of the test the PWR LED should remain on IF SELF TEST FAILS If the LOC LED is not on or continuously flashes the following steps will verify whether or not the problem can be fixed locally 1 Ensure the ISU Express is receiving power 2 Power off the ISU Express while holding down Select and Test then power back up 3 Continue holding the Select and Test buttons until the Loop LED flashes once 4 If the ISU Express still does not pass self test Call ADTRAN Technical Support for assistance IF THE ISU EXPRESS DOES NOT READ READY When the ISU Express has been set up and connected to a line but the Loop LED does not remain on after a few minutes follow the troubleshooting procedure outlined below 61202 081L1 1 ISU Express User Manual 61 Chapter 5 Troubleshooting 62 Cycle power on the ISU Express leaving it off for a mini mum of two seconds then turn the power on for one minute to ensure the Loop LED still does not come on
101. s 1 7 bits Selects the number of asynchronous parity bits 0 None 1 Odd 2 Even Selects the number of asynchronous stop bits 0 1 stop bit 1 1 5 stop bits 2 2 stops bits Selects asynchronous flow control 0 None ISU Express User Manual 101 Appendix D S Register List 1 XON OFF from DTE controls DCE 2 XON OFF from DCE controls DTE 3 Hardware 12 Software 576 DTE CLOCK Selects DTE connector transmit clock timing source 0 Internal ISU Express supplies timing 1 External DTE supplies timing The following are the string locations for stored numbers 0 9 SS80 SNO LOC Stored number 0 string SS81 SNI LOC Stored number 1 string SS82 SN2 LOC Stored number 2 string 5583 SNI LOC Stored number 3 string 5584 SNA LOC Stored number 4 string 5585 SN5 LOC Stored number 5 string SS86 SN6 LOC Stored number 6 string S587 SN7 LOC Stored number 7 string SS88 SN8 LOC Stored number 8 string SS89 SN9 LOC Stored number 9 string S90 CONFERENCE ID NI 1 feature identification number for conferencing S91 TRANSFER ID NI 1 feature identification number for transferring 93 CA
102. ssor during an active call break in character can be defined in 52 _U Resets ISDN interface 15 Dumps status buffer contents to the DTE port 61202 081L1 1 ISU Express User Manual 73 Appendix Commands Function Carrier Detect CD Control Line Options amp CO CD forced on amp 1 CD normal amp C2 CD off with local disconnect LOCD amp C3 CD off with link down Data Terminal Ready DTR Control Line Options amp 00 Ignore amp D1 DTR Off forces command amp D2 Idle when Off DTR Off forces idle On allows auto answer Generic Unit Configurations amp FO Resets all S registers to factory preset values amp F1 Configures unit for Dial 56k sync amp F2 Configures unit for Dial 64k sync amp F3 Configures unit for Dial 112k sync Configures unit for Dial 128k sync amp F5 Configures unit for Leased 64k amp F6 Configures unit for Ldm 64k master amp F7 Configures unit for Dial 57 6k async amp F8 Configures unit for Dial 115 2k async amp F10 Configures unit for Dial V32 19 2k async amp F11 Configures unit for Fallback 57 6k async Network Options amp LO Dial network Leased network amp L2 Leased backed up by dial network Calling Number Identification amp NO Number 1 Read far end phone number 1 if service subscribed from telephone company 1 Number 2 Read far end phone number 2 if service subscribed from telephone company 74 ISU Express User
103. supplementary service FACILITY REJECTED A facility requested cannot be provided by the network FACILITY NOT SUBSCRIBED The channel type requested has not been subscribed FALLBACK ERROR Attempt to fallback to normal mode failed FBW disconnect BONDING negotiation has failed due to a disconnect on a B Channel FowCt mismatch Bonding negotiation determined a flow control mismatch FlowCtl required Bonding negotiation determined that flow control needs to be optioned on 1 2 The call on either the first or second channel was disconnected by the ISU Express The far end phone number is also dis played InCmptblFound TLINK end to end negotiations found an optioning incompat ibility between the two end units INCOMMING CALL BARRED The network will not allow an incoming call INCOMPATIBLE DEST The called number cannot accept the type of call that has been placed ISU Express User Manual 87 Appendix Status Buffer Messages 88 INTRWORKING _UNSPEC A message was sent by a far end network that was not under stood INVALID_CALL REF Call control error INVALID ELEM CONTENTS Call control error INVALID MSG UNSPEC Invalid message protocol error INVALID NUMBER FORMAT The dialed number has an invalid format L1 not up The network interface is not active L2 not up The data link layer interface is not active L3 not up The call control interface is not active L2 2 notup The
104. tal switch that supports call control routing and supplementary services provision under software control All ISDN switches are SPCSs 126 ISU Express User Manual 61202 081L1 1 Glossary synchronous T1 T1C 2 T3 TA TE1 TE2 tandem 1 The condition occurring when two events happen in a specific time relationship with each other both under control of a master clock 2 A method of data transmission requiring the transmission of timing pulses to keep the sender and receiver synchronized in their communication used to send blocks of information Synchronous data transmission is used in high speed data circuits because there is less overhead than asynchronous transmission of characters which contain two extra bits per character to effect timing Also T 1 A digital transmission link with a capacity of 1 544 Mbps T1 uses two pairs of normal twisted wires T1 normally can handle 24 voice conversations with each conversation being digitized at 64 kbps With more advanced digital voice encoding techniques it can handle more voice channels T1 is a standard for digital transmission in North America 3 152 Mbps Capable of handling 48 voice conversations T1C is further up the North American digital carrier hierarchy 6 312 Mbps Capable of handling 96 voice conversations T2 is four times the capacity of T1 44 736 Mbps Commonly referred to as 45 Mbps Capable of handling 672 voice conversations T3 runs on fiber op
105. the ISU Express for leased line clock mode channel rate and DDS loopbacks Selecting Leased Line configures the unit for leased line service or service that provides a permanent connection between end points such as limited distance modem LDM service Clock mode Slave Master Channel rate 61202 081L1 1 By configuring the ISU Express for Master timing the ISU Express can provide clocking for both ends of the phone line This Master option is used at one end of a limited distance modem application where two ISU Express units are directly connected without the use of channel banks The far end unit should be configured for Slave and it derives its clocking from the ISU Express configured for Master timing If two ISU Express units are connected through channel banks both units should be configured for Slave mode The maximum mixed gauge cable length between two ISU Express units operating in leased line mode is 18 000 feet In Leased Line operation the data rate for the ISU Express can be configured for 64 kbps or 128 kbps When 64 kbps is selected only one bearer channel B1 is used When 128 kbps is selected both bearer channels B1 and B2 are used ISU Express User Manual 31 Chapter 4 Configuration OPTIONS FOR BOTH LEASED AND SWITCHED ISDN SERVICE DTE Options NOTE Bit Rate RTS Options CTS Options CD Options 32 This section describes the options that apply to both leased digital service and dial
106. the string S register to be read followed by a question mark and press Enter ATSS80 61202 081L1 1 ISU Express User Manual 53 Chapter 4 Configuration CONFIGURING THE ISU EXPRESS FOR V 25 BIS IN BAND DIALING 54 NOTE V 25 bis dialing is used primarily by DTE with synchronous interfaces HDLC SDLC or BSC BISYNC not supporting the AT command set which is commonly used by asynchronous devices The ISU Express supports V 25 bis in band dialing in accordance with Fascicle VIILI V 25 bis Malaga Torremolinos 1984 Melbourne 1988 Recommendation V 25 uses the following DCE DTE control signals Transmitted Circuit 103 R cetved Circuit 104 Ready for Sending eei Circuit 106 Data set ready ice rhe emt Circuit 107 Data terminal ready teretes Circuit 108 2 Calling Indicator Circuit 125 The ISU Express supports the following V 25 bis commands to control automatic calling and answering CRIN a etie enin Call request number in command CRS nne Call request using stored number snes Program stored number RLN List stored number Connect incoming call DIG Disconnect incoming call When using stored numbers V 25 bis accesses stored numbers 1
107. the transfer of data and images over ISDN The ISU Express may be viewed as an ISDN dial modem that allows cost effective high speed data transmission at rates up to 128 kbps The ISU Express has one RJ 45 jack labeled ISDN BRI U or ISDN BRI S T on the rear panel for network connection see Figure 1 2 ISDN basic rate service divides a standard telephone line into three digital channels capable of simultaneous voice and data transmission The three channels are comprised of two bearer B channels at 64 kbps and one data D channel at 16 kbps known as 2B D The ISU Express also supports a leased digital connection that allows data to be transferred at up to 128 kbps over a 2 wire facility using the same 45 jack This type of service is a permanent connection between end points and is sometimes referred to as a leased connection a dedicated connection a nailed up connection a private circuit or a limited distance modem connection Leased connection or leased application is used in this manual to represent these types of services If the ISU Express is equipped with optional POTS interfaces the rear panel RJ 11 jacks labeled PHONE are used for connection to DTMF analog devices such as an analog telephone or a fax machine ISU Express User Manual 5 Chapter 1 Understanding ISDN and the ISU Express 1202081L8 L9 1202081L10 L11 LI LI LI LI LI LI LI LI U ISDN PHON
108. through 9 See the section VT 100 Terminal Dialing Options ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration SYNC V 25 Dialing V 25 bis specifies that the characters should be ASCII 7 bits with even parity and one stop bit However for versatility the ISU Express allows the data bits parity and stop bits to be changed as defined under Data format This setting allows for V 25 bis messages in asynchronous start stop data format In synchronous mode the ISU Express is an ISDN version of a synchronous modem For configuration or troubleshooting the unit requires connection to an async VT 100 terminal and the dial option NOTE must be set to AT Commands After the unit is completely configured set the dial option to V 25 bis and exit the VT 100 terminal interface The unit is now ready to respond to V 25 bis dialing commands If it is necessary to re enter the VT 100 interface for re configuration troubleshooting or to view the status buffer press the Test button on the front panel of the unit This enables the AT command mode then type AT V to activate the terminal interface SYNC V 25 HDLC Dialing Although V 25 bis allows asynchronous data format asynchro nous DTE is more likely to support the AT command set than V 25 bis This setting provides V 25 bis messages in bit synchronous format for example HDLC SDLC X 25 The bit synchronous format is the most commonly used by V 25 bis This option spec
109. tic and is typically called FT3 Terminal Adaptor A DCE that connects to the ISDN S Interface and enables non ISDN terminal equipment to communicate over the ISDN line Terminal Equipment Type 1 ISDN compatible terminals Terminal Equipment Type 2 Non ISDN terminal equipment linked at the RS 232 RS 449 or V 35 interfaces The connection of networks or circuits in series The connection of the output of one circuit to the input of another T interface T Reference point Performs the same function as the S Interface but uses rather than an NT2 61202 081L1 1 ISU Express User Manual 127 Glossary twisted pair Two wires twisted around each other to reduce induction interference from one wire to the other Several sets of twisted pair wires may be enclosed in a single cable Twisted pair is the normal cabling from a central office to your home or office or from your PBX to your office phone Twisted pair wiring comes in various thicknesses As a general rule the thicker the cable is the better the quality of the conversation and the longer the cable can be and still get acceptable conversation quality However the thicker it is the more it costs 2B D The Basic Rate Interface BRI in ISDN A single ISDN circuit divided into two 64 kbps digital channels for voice or data and one 16 kbps channel for low speed data up to 9600 baud and signalling 2B D is carried on one or two pairs of wires depending on the inte
110. tions for Both Leased and Switched ISDN 2 32 DTE OpHO0s nda can sa bende ota EEEE 32 Hn 32 RIS OpHOnS iode tieni rue Prim 32 use pu M 32 CID ODHOLDS sisian tee te ete 32 33 PSR OP 110 33 Flow Control for Asynchronous Data sess 33 Data Format for Asynchronous Data 34 Transmit Clock for Synchronous Datassist 34 Setting Protocol OpDtoDS sds ceded Do fe en een et ee e sna 35 Clear Channel isesi aris 36 BONDING model 36 WP d DM im MM 37 37 TXAM e 37 37 TANUL iet eres 37 37 ISU Express User Manual 61202 081L1 1 Table of Contents Chapter 4 Configuration cont 37 37 Error Control Error Ctrl etn 39 CCOmptesSiOf mei een a fiet 39 Microcom Network Protocol Block Size MNP Size 39 57 6 ASYING
111. to 128 kbps synchronous ISU Express User Manual 69 Chapter 6 Specifications 70 Rate Adaption e T Link CCITT V 120 SAP DSU 57 6 async BONDING PPP async sync Fallback Interoperability BONDING Mode 1 compatible Inverse Multiplexers SW56 DSUs e ISDN TAs V 32 bis V 42 V 42 bis modem optional Automatic Fallback Rate Adaption Switch Compatibility AT amp T 5ESS NTI DMS 100 National ISDN 1 NEC EuroISDN e UN4 TDX KDD NTT Express S T L8 L10 only B Channel Aggregation BONDING mode 1 protocol POTS Interface Phone 1 or Phone 2 optional Maximum REN 5 Ringing Signal Amplitude 18 5V 5V e Ringing Signal Frequency 20 Hz 3 Hz Supports 3 phones 18 mA loop current each at 1000 ft 24 AWG Supports 2 phones 26 mA loop current each at 1000 ft 24 AWG e Supports 1 phone 49 mA loop current each at 1000 ft 24 AWG Supports 4 phones 14 mA loop current each at 600 ft 24 AWG ISU Express User Manual 61202 081L1 1 Chapter 6 Specifications Supports 3 phones 18 mA loop current each at 600 ft 24 AWG Supports 2 phones 27 mA loop current each at 600 ft 24 AWG Supports 5 phones 12 mA loop current each at 300 ft 24 AWG Supports 4 phones 15 mA loop current each at 300 ft 24 AWG Supports 3 phones 19 mA loop current each at 300 ft 24 AWG Supports 2 phones 28 mA loop current each at 300 ft
112. type If connection is made at 56k V 120 PPP async sync and T Link are attempted If connec tion is not made at 56k then an AUDIO call type is attempted provided the ISU Express with the V 32 bis modem option is used If the ISU Express connects the AUDIO call type the V 32 bis protocol is attempted for V 32 bis V 42 bis compatible modems Once a call connects if the protocol cannot be negoti ated the ISU Express hangs up the call Point to Point Protocol PPP Async to Sync NOTE 61202 081L1 1 PPP provides a standard method for transporting multi protocol datagrams over point to point links The ADTRAN PPP async sync protocol allows the ISU Express and a PC or Macintosh running PPP software to communicate with a PPP compatible bridge or router The PPP async sync protocol complies with Internet Engineering Task Force IETF RFC 1662 The asynchronous control character map ACCM option is scanned during the negotiation When the ACCM option is seen in a configure ACK link control packet it is adopted by the ISU Express In addition when the ACCM option is not seen in the configure request packet from the network the ISU Express will spoof or add it to the packet ISU Express User Manual 43 Chapter 4 Configuration CONFIGURING THE ISU EXPRESS USING QUICK SETUP 44 NOTE Dial 56K sync To configure the DTE Options quickly and easily use the Quick Setup menu to automatically set up the eleven most common DTE
113. uipment If they do you will be given advance notice so as to give you an opportunity to maintain uninterrupted service 3 If you experience trouble with this equipment ISU Express please contact ADTRAN see inside back cover for repair warranty information The telephone company may ask you to disconnect this equipment from the network until the problem has been corrected or until you are sure the equipment is not malfunctioning 4 This unit contains no user serviceable parts To ADTRAN service personnel For continued protection against risk of fire replace 1 with the same type and rating of fuse only 2 A 250 V FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential environment This equipment generates uses and can radiate radio frequency energy and ifnotinstalled and used in accordance with the instructions may cause harmful interference to radio or TV reception which can be determined by turning the equipment off and on The user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet
114. uring the ADTRAN ISU Express for Dial Operation Switch Type Call Type 61202 081L1 1 To place ISDN modem calls analog modem calls or plain old telephone service POTS calls over ISDN the unit must be configured for Dial Line Find out what kind of ISDN switch your local CO is using by asking your telephone administrator or your telephone company representative The ISU Express can be configured for a North ern Telecom DMS 100 AT amp T 5ESS CO switch a switch con forming to the National ISDN 1 standard usually an AT amp T 5ESS NTI DMS 100 or Siemens EWSD or an NEC Switch The Express S T will also support Euro ISDN VN4 TDX KDD and NTT switch types The Call type can be configured four different ways depending on the type of service used Speech Speech directs the call control software to request a Mu law speech circuit as the bearer capability for outgoing calls The Speech option is used with an ISDN line configured for voice service In some areas voice service costs less than data service A Speech call type does not guarantee an end to end digital connection with some local and long distance carriers Audio Audio directs the call control software to request a 3 1 kHz audio circuit as the bearer capability for outgoing calls The Audio ISU Express User Manual 25 Chapter 4 Configuration 26 option is used with an ISDN line configured for voice service In some areas audio service is less expens
115. use more options are available lowering the chances of downtime when a particular service is turned off Later features not actually used can be deleted If all of the previous features are not available compare the actual data service requirements with those which are available A likely problem is the lack of a clear trunk to provide 64 kbps unrestricted data service A solution is to use to 56 kbps service Sometimes voice circuits are suitable for data service at a re duced bit rate 5ESS Custom Line Additional Parameters 110 The AT amp T 5ESS central office telephone switch supports a proprietary ISDN D channel call control protocol called Custom which is based on CCITT recommendations The ISU Express configured for switch type AT amp T 5ESS will work with lines providing this protocol on 5ESS switches with software version 5E6 or later The ISU Express supports the following configurations on 5ESS custom lines Point to point with one phone number recommended figuration with no POTS interface Multipoint with one phone number ISU Express User Manual 61202 081L1 1 Appendix F Ordering ISDN Without IOCs Multipoint with two phone numbers recommended configu ration with POTS interface The requirements for the 5ESS point to point line are defined in Table F A Table F A 5ESS Features Bl service On Demand DMD B2 service On Demand DMD Data line class Point o point Maximum B channels Nu
116. usy Options B0 Make DTE port not busy same as 5135 0 B1 Make DTE port busy same as 5135 1 Service Profile Identification SPID Access Options _10 Access SPID 1 1 Access SPID 2 for DTE 2 Local Directory Number LDN Access Options _NO Access LDNI for DTE 1 _N1 Access LDN2 for DTE 2 ISDN Switch Type Options _SO 5ESS _51 DMS 100 _52 National ISDN 1 _S3 NEC _S4 Euro ISDN _S5 VN4 76 ISU Express User Manual 61202 081L1 1 Appendix Commands Function ISDN Switch Type Options cont _S6 TDV _S7 KDD _S8 NTT Only available on part numbers 1202081L8 1202081L9 and 1202081L10 ISDN U Interface Operational Mode Options _X0 ISU timing slaves to network NT mode _ 1 ISU is U interface timing master LT mode Data Flow Control Options 00 No flow control NOT Software Q2 CTS only Q3 Hardware Q4 Software from DCE only Compression Options 0 No compression 1 MNP use compression oC2 V 42 bis use compression C3 MNP or V 42 bis negotiate compression MNP Compression Block Size Options 0 MNP 64 byte blocks NAT MNP 128 byte blocks NA2 MNP 192 byte blocks NA3 MNP 256 byte blocks Error Correction Options NO Normal N2 Reliable N3 Auto reliable N4 Force LAPM N5 Force MNP 61202 081L1 1 ISU Express User Manual 77 Appendix Commands 78 ISU Express User Manual 61202 081L1 1 Appendix Current Status M
117. ver it may be necessary to shorten this timer if the DTE equipment connected to the ISU also has timer constraints for completing non BONDING parameter negotiation Values of 1 2 5 10 default 20 50 100 and 200 seconds can be selected TANULL 10 sec def TCID This option specifies the length of time both endpoints attempt to negotiate an agreeable value for bearer channels and channel capacities before deciding the BONDING call has failed Values of 1 2 5 default 10 20 50 100 and 200 seconds can be se lected TCID 5 sec def The V 120 protocol is a CCITT compliant rate adaption method which provides DTE service between the ISU Express and other V 120 compliant devices at rates less than the 64 kbps ISDN Bearer channel rate V 120 supports synchronous and asynchro nous DTE rates See the section Recommended Operating Protocols in the chapter Understanding ISDN and the ISU Express and Table 1 B for available V 120 rates The V 32 bis protocol allows the ISU to originate and receive ISU Express User Manual 61202 081L1 1 Chapter 4 Configuration calls to analog modems on POTS lines The V 32 bis V 42 bis modem only supports asynchronous DTE rates To place an outgoing call to an analog modem the call type must be changed to Audio See the section Setting the Call Type to change call types The V 32 bis modem operational parameters definitions follow NOTE The ISU Express with optional V 32 bis V 42 bis mod
118. ver dial and leased connections using this protocol NOTE 40 ISU Express User Manual 61202 081L1 1 FLink Chapter 4 Configuration The T Link protocol allows the ISU Express to communicate with 2 wire Switched 56 DataPath DUs The T Link protocol performs two functions It adapts the data rate of sub 64 kbps devices to the 64 kbps bandwidth of the ISDN bearer channel For asynchronous and synchronous rates up to 19 2 kbps T Link transmits the status of the DCE DTE EIA leads to facilitate flow control and maintenance In addition to 2 wire Switched 56 DataPath DUs the ISU Express can communicate with any other device using the T Link proto col Call Type Rate Adaption Protocols Supported Typical Units Supported Data 64k Data 56k Speech or Audio BONDING mode 1 ISUs V 120 ISDN TAs PPP async sync PPP compatible bridges routers V 120 ISDN TAs PPP async sync PPP compatible bridges routers T Link 2 Wire SW56 DSUs V 32 bis V 32 bis compatible modems Simple Asynchronous Protocol SAP 61202 081L1 1 SAP is a rate adaption method providing DTE service between ISU Express units at a sub 64 kbps ISDN bearer channel rate Selecting this menu item causes the ISU Express to use SAP protocol The primary usage for SAP is general purpose asynchronous rate adaption in a dial up or leased environment SAP only operates on a 64 kbps data link ISU Express User Manual 41
119. vice profile ID SPID and local directory number LDN Example Switch National ISDN 1 SPIDI acer 20555512120100 niet ees 20555512130100 LDN 5551212 LDN 2 sinet 5551213 Connect a VT 100 async terminal or personal computer with a terminal emulator to the RS 232 port 1 Type AT carriage return Enter Watch for an OK response 2 carriage return Enter 3 When the terminal displays the configuration menu enter the assigned SPIDs and LDNs and switch type 4 Connect the ISDN line 5 From the configuration menu a call can be placed using the Ctl D command Ctl X exits the VT 100 terminal inter face and places the unit on line 6 To return to the configuration menu while on line type or press TEST on the ISU Express to go off line Then type If you are on line in synchronous data mode or setup for V 25 bis dialing press Test on the ISU Express to enter the terminal setup screen Then connect an asynchronous terminal to the RS 232 port and type carriage return Enter ISU Express User Manual 1 Quick Startup Guide 2 ISU Express User Manual 61202 081L1 1 Chapter 1 Understanding ISDN and the ISU Express ISDN OVERVIEW The Integrated Services Digital Network ISDN is a public or private switched digital network ISDN is an international standard for digital communications allowing a fu
120. w the status buffer press the Test button on the front panel of the unit this enables the AT command mode Type AT V to activate the terminal interface ISU Express User Manual 27 Chapter 4 Configuration 28 Auto Answer Answer Tone Disabled This selection disables in band dialing over the DTE interface The ISU Express auto answer parameter can be configured in one of the following three ways Disabled When Disabled is selected the ISU Express will not answer the call An AT answer command ATA must be issued to the ISU Express before it accepts the incoming call The ringing call can be dumped using the Hang up line command Enabled When Enabled is selected the ISU Express will accept an incoming data call on the primary phone number SPID1 LDN1 If that call is BONDING call then another incoming call is accepted on the secondary phone number SPID2 LDN2 If the unit is configured for a call that uses only one B channel such as 56 kbps or 64 kbps the ISU Express will accept an incoming voice call on the secondary phone number SPID2 LDN2 Dump all calls When Dump all calls is selected the ISU Express will not accept any incoming calls keeping the line clear for outgoing calls The Answer tone option should be set to the No Answer tone default This option is used in the ISU Express with the V 32 bis V 42 bis modem option part number 1202081L4 The Answer tone option enables the transmission of
121. y than a 2 wire circuit All long distance circuits are 4 wire Almost all local phone lines and analog phones are 2 wire group 4 A high speed 56 kbps facsimile protocol specific to ISDN hub 1 Communications center 2 major routing station for connecting channels 3 DDS connecting center 122 ISU Express User Manual 61202 081L1 1 Glossary in band signalling Signalling made up of tones which pass within the voice frequency band and are carried along the same circuit as the talk path being established by the signals Virtually all signalling request for service dialing disconnect etc in the U S is in band signalling Most of that signalling is MF multi frequency dialing The more modern form of signalling is out of band interexchange carrier Any carrier registered with the FCC authorized to carry customer transmissions between LATAs interstate or if approved by a state public utility commission intrastate Includes carriers such as AT amp T Communications Satellite Business Systems GTE Telenet GTE Sprint and MCI information element The name for the data fields within an ISDN layer 3 message interworking ISDN Communication between two types of networks or end equipment This may or may not involve a difference in signalling or protocol elements supported Integrated Services Digital Network A network architecture that enables end to end digital connections The network supports diverse services

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