ADTRAN ISU 2X64 user manual SBus Termination

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Chapter 6. Configuration

connected through one of the bearer channels and could utilize up to 64 kbps of bandwidth. Likewise, DTE#2 of the master and DTE#2 of the slave would be connected through the other bearer channel and could also utilize up to 64 kbps of bandwidth (see Figure 6-15).

When the channel rate is set for 128 kbps in both units, both bearer channels are assigned to one DTE port. This assignment is user-conﬁgured. Select a DTE rate higher than 64 kbps for the DTE port that will run the application requiring greater than 64 kbps bandwidth. Select the same DTE port for both Master and Slave 2x64 units. Set the unused DTE port's DTE rate to a rate less than 64 kbps to facilitate correct operation between the two ISU 2x64 units.

For example, if an application requiring 128 kbps was run through DTE#1, ﬁrst conﬁgure the channel rate of the leased line to 128 kbps and set the DTE rate for DTE#1 to 128 kbps synchro- nous. The DTE rate for DTE#2 should be set at 56 kbps or lower. Enter these settings into both units. This allows an application to utilize up to 128 kbps of bandwidth between DTE#1 on the mas- ter unit and DTE#1 on the slave unit.

SBus Termination

SBus Termination selects 100 ohm termination resistors for the S/ T interface on ISU 2x64 units that are equipped for the ISDN S/T interface. These units (part numbers 1200051L2, 1200051L4, 1200051L5, and 1200051L6) connect to the S/T interface of an NT1 type device or the S/T line card.

Select 100 ohm On to turn on the 100 ohm termination resistance across the S/T transmit and receive pairs. Select 100 ohm Off to turn off the 100 ohm termination resistance across the S/T trans- mit and receive pairs.

The SBus Termination resistors are not present on ISU 2x64 units equipped with the integrated NT1 (part numbers 1200051L1 and 1200051L3). Setting the SBus Termination resistance on these units has no effect on their operation and can be ignored.

Units with S/T interface will not work in master mode.

61200051L1-1D

ISU 2x64 Dual Port ISDN Service Unit User Manual

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Contents Part Numbers ISU Dual Port Isdn Service UnitTrademarks Isdn Page Canadian Emissions Requirements Canadian Equipment Limitations Table of Contents Software Version Txinit Txfa TXADD01 Txdeq Tanull Tcid DSU 57.6 AsyncSAP Fallback 109 List Figure E-1 EIA-232 Interface 119 List of Tables Viii Adtran ISU Isdn OverviewISU 2x64 Rear Panel Indicator Deﬁnition DTE IndicatorsISU 2X64 Interoperability ISU 2X64 Single Port OperationISU 2x64 Front Panel ISU 2x64 Interoperability DTE#2 Recommended Operating ProtocolsCall Type Protocol Sync Rates Supported bps Async Recommended Operating ModesUnderstanding Isdn and the ISU Isdn Ordering Codes Chapter Isdn ServiceCapability R previously Generic Data Capability S previously Generic Data MJ3 previously Generic Data J-1DN B1 previously Generic Data BCapability C previously Generic Data C I2 previously Generic Data I-1DNM5 previously Generic Data M-1DN J2 previously Generic Data JNetwork Connection Chapter InstallationDTE Data Connection VT 100 Maintenance Help Screen Maintenance InterfaceDial Interface Connection Menu Navigation Chapter OperationCurrent Status Menu Front Panel DTE IndicatorsGetting Started VT 100 Menu SupportStatus Buffer VT 100 Status Screen Status ScreenVT 100 Configuration Screen Configuration ScreenChapter Testing Test OptionsVT 100 Test Menu Screen Test Menu Tree Loopback DTELoopback Network Loopback ProtocolLoopback Disable Loopback RemoteTest Remote Test 2047 Both NEBE/FEBESoftware Version Loopback Both DTEsChapter Configuration Dial Line OperationDial Line Menu Tree VT 100 Configuration Menu Screen Setting the Switch Protocol=AT&T 5ESS LCD Configuration Menu TreeCofiguration Setting the Call Type Smart Dial Strings Setting the Terminal IDSetting the Busy Out Port Setting the Dial Options Dial Options, RS-366 Menu Tree =CONFIGAT Commands Example ATI1 Example ATSS80? =V.25 Dial Options, V.25 bis Menu TreeDial Line, Auto Answer Menu Tree =CONFIGBis Async Menu Tree Data Bits Menu TreeSetting Auto Answer Setting Answer Tone =Dial Line =Netw. options Answer Tone Menu TreeCall Screening Menu Tree Setting Connect TimoutSetting Call Screening Connect Timout Menu TreeSBus Termination Menu Tree SBus TerminationLeased Line Service Clock mode Slave/MasterLeased Line Menu Tree Channel Rate Limited Distance Modem ApplicationsLeased Application with Channel Banks SBus Termination DTE Options for Asynchronous and Synchronous Operation Asynchronous DTE Options Menu TreeSynchronous DTE Options Menu Tree Bit Rate DTR Options Data Format Menu Tree Flow Control Menu TreeTransmit Clock Menu Tree AutobaudProtocol Menu Tree Setting Protocol OptionsClear Channel =BONDING mode Protocol BONDING, Mode 1 Menu TreeTxdeq DSU 57.6 Async Call Type Rate Adaption Protocols Typical Units Supported Rate Adaptation ProtocolsPPP Menu Tree Point-to-Point Protocol PPP Dial Menu Tree Chapter Dial OptionsFront Panel Dialing Options VT 100 Dial Options ScreenAnswer Call Hang up lineDial number Redial last #Chapter Quick Setup Quick Setup ConfigurationQuick Setup Menu Tree Quick Setup Data protocol Bonding mode DTE mode Asynchronous Protocol Bonding mode DTE mode Asynchronous Leased Line Second AT&T 5ESSQuick Setup Security Menu Tree SecurityLock Keypad Set PasswordRemote Config Remote Config Menu TreeCfg. Rmt. Unit Lpbk remote 1BLpbk remote 2B Security and Remote Configuration Chapter Troubleshooting If Self Test FailsIf The ISU 2x64 Does Not Read Ready Troubleshooting Troubleshooting Troubleshooting Troubleshooting Troubleshooting If the Wrong DTE Port Answers a Call If you Cannot Connect Calls Troubleshooting CallsChapter Specifications Only available on part numbers 1200051L5 and 1200051L6 High x 8.75 wide x 11.00 deep, 3 lbs Specifications Appendix a AT CommandsCarrier Detect CD Control Line Options DTE Data Type Options 5ESS Isdn U-Interface Operational Mode Options Appendix a AT Commands Appendix B Current Status Messages ISU is receiving its first TEI from the network Unit is ready to make or accept a call DSU 57.6 Async rate adaptation protocol Appendix C Status Buffer Messages Call control error Called number is busy Called number is out of order Facility requested cannot be provided by the network Invalid message, protocol error Bonding negotiation has failed Number dialed has been changed Local DTE invalid S-register setting Phone number dialed does not exist Character Appendix DRegister List Auto AnswerIs set S26.......DTE Rate Adjust NumberLOW Layer Comp DTR DTE CD= Locd DTE DTR= Bisync = NEC S52.......SWITCH Type= PPP Dial ModeType = FallbackSPID2 LOC DTE ModeChannel Rate SPID1 LOCDTE Clock DTE FlowDTE DCE118 EIA-232 Interface Appendix EInterface RS-530ST-B RS-366 InterfacePIN RJ-45 Dial Line Connector U InterfaceMaintenance Connector RJ-45 Dial Line Connector S/T Interface124 Appendix F Ordering Isdn Without IOCs Isdn Service Ordering Information for the Adtran ISU 127 TEI Local Service Local Interface RequirementsPhysical Interface Long Distance Service Deciding What Services to Order5ESS Custom Line Additional Parameters 5ESS Features DMS-100 Protocol Version 1 Line Additional Parameters DMS FeaturesSetting UP the ISU 2X64 for a NEW Line After Service Is Installed134 Acronyms PRI Asynchronous transmission GlossaryCcitt DDS Isdn NT1 TE1 2B+D 144 Numerics Index146 Isdn 123 Txdeq Txfa Txinit 150 Product Support Information

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