American Telecom AM64/128A manual Master 64K BT Slave 4.8K

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AM64/128A User Manual	Rate Menu

The Rate menu operates slightly different when 64k mode is activated. It is described more fully in the Configuration Menu (Section 5.7).

Briefly, this mode involves the master BBM set to 64K + BT, and the slave BBM set to some other rate. As far as the rate menu is concerned there are now two separate rates to display; and these are indicated clearly with the words Master or Slave. The SELECT key now only defines the slave rate, the master rate remains at 64k + BT until the 64k mode is disabled.

The master modem (local) rate is indicated by

The slave modem (remote) is indicated by

R > Master 64K BT

R > Slave 4.8K

The slave rate is always displayed first on entry. The master rate has to be scrolled to.

Upon deselecting the 64k mode in the Configuration menu both master and slave rates revert to 64k+BT.

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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 Testing InstallationBBM to BBM Link Self Test PassLink 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 No Alarm No Signal Receiving AIS No Alignment Alarm StatusLOS/CD Fail CD FailInterface Status User RateLine Rate Link Mode Network Mode Operating ModeLocal loop Test MenuLocal loop from menu Top level display shows Loc Loop Off Loc Loop OnLocal loop from DTE LoopbackLoopback is applied by selecting the display Loopback Off Loopback OnRemote Loop from menu Remote LoopRem Loop Off Rem Loop OnBin Keys Off Sending Bin Binary PatternsRemote loop from DTE Data Test Error Count Bit Error Rate BER = User Data Rate x TimeOverview OperationErrors s000001 Errors nnnnnnErrors Data TestTransparent Mode Injection ModeInjecting 0s Injecting 1sSvc Test Service TestComms Evp Rx Evp Tx Time If the count is stopped the display is StopSelf 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 Ext Byte Clk Synchronisation Type for software version V1.3 and aboveExt Bit Clk Internal 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 Power 10dBm Slave Mode 64K RateMaster Mode C 64K Rate Rate 64K