American Telecom AM64/128A manual BBM to Line Card Link, Network Mode

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Installation	AM64/128A User Manual

4.2 BBM to Line Card Link

Power up the BBM as described previously, and set the modem to slave mode.

Set the line rate as required, and connect the line cord.

Consult the line card handbook to set up the user data rate. The modem should automatically program to this rate.

There will be an ‘options enable’ switch on the line card which determines whether the interface details are to be set either from the line card or modem. If the interface is to be set from the line card, then the enable switch should be off, and the line card options set as required, (see line card hand book). If the interface is to be set from the modem, then the enable switch should be on, and the option menu used as in the above case.

The status menu can then be examined and the DTE connected as with the BBM - BBM case. The displays should be the same, except for the operating mode display (f) which should read:

S > Network Mode

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Contents Base Band Modem ATL Part No /203/002/610 Issue 4 SeptemberInformation Contained This Document is Confidential to Contents Appendix B International Models IntroductionInterface Modules Constructional DetailsBaseband Modems System Overview System Overview Self Test Pass InstallationTesting BBM to BBM LinkLink Mode LTU Ready No Alarm LTU Not ReadyBBM to Line Card Link Network ModeMenu Operation Front Panel FeaturesLoop back On Loop back OffLoop Active Status MenuOver all Status CD Fail Alarm StatusNo Alarm No Signal Receiving AIS No Alignment LOS/CD FailInterface Status User RateLine Rate Link Mode Network Mode Operating ModeLoc Loop On Test MenuLocal loop Local loop from menu Top level display shows Loc Loop OffLoopback On LoopbackLocal loop from DTE Loopback is applied by selecting the display Loopback OffRem Loop On Remote LoopRemote Loop from menu Rem Loop OffBin Keys Off Sending Bin Binary PatternsRemote loop from DTE Operation Error Count Bit Error Rate BER = User Data Rate x TimeData Test OverviewData Test Errors nnnnnnErrors s000001 ErrorsInjecting 1s Injection ModeTransparent Mode Injecting 0sTime If the count is stopped the display is Stop Service TestSvc Test Comms Evp Rx Evp TxSelf Test Lamp TestComm Loop Off Communication Channel LoopbackRate 4.8K Rate MenuMaster 64K BT Slave 4.8K 2 X.21bis Option Menu3 G.703 Asynchronous ModeSignalling Rate Char Len Character LengthLine Rate Configuration MenuMaster Slave Synchronisation Type for software versions below 3 X.21 Loop ControlModem Internal Clk Synchronisation Type for software version V1.3 and aboveExt Byte Clk Ext Bit ClkMenu Lock 5 64k ModePower Level Glossary of Terms Band circuits General Specifications Appendix a Interface Pin Connections Way D type X.21 bis V.24 / V.28* Connector pin allocationWay D-type X.21 V.11 Connector pin allocation Way D-type V.36 Connector pin allocation Mrac Connector Pin allocationLine Connector Way D-type RS-530 Connector pin allocationAppendix B Internal Link Settings Page Interface Module Interface Modules21bis Interface Module RS530 Interface ModuleFrame Structure Service Test FacilitiesAppendix C In Service Test TTE Network and Safety statements LVD Safety Statements21 bit timing cable 15 way to 15 way D type plugs Appendix E35 bit timing cable 34 way to 34 way Mrac plugs 21 byte timing cable 15 way to 15 way D type plugs24 / V.28 bit timing cable 25 way to 25 way D type plugs RS530 bit timing cable 25 way to 25 way D type plugs 21 bis V.36 bit timing cable 37 way to 37 way D type plugsAppendix F Troubleshooting Rate 64K Slave Mode 64K RatePower 10dBm Master Mode C 64K Rate