American Telecom AM64/128A guide

AM64/128A User Manual

The function of the links is as follows:

J1 Transmission disable

This link is always left in position 1-2

J11 Watch dog enable

This link is always left in position 1-2

J21 This connects the supply earth to the circuit ground in position 1-3

The circuit ground is floating in position 1-2

WARNING

Only authorised personnel can be allowed to open the Line Terminat ing Unit case to change the link settings. Misuse or any modifications carried out to this unit other than in accordance with the instructions supplied, will in validate both the guarantee and CE approval.

A-5

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Image 44

Contents

ATL Part No /203/002/610 Issue 4 September Base Band Modem Information Contained This Document is Confidential to Contents Appendix B Introduction International Models Interface Modules Constructional DetailsBaseband Modems System Overview System Overview Installation TestingBBM to BBM Link Self Test Pass LTU Ready No Alarm LTU Not Ready Link Mode Network Mode BBM to Line Card Link Front Panel Features Menu Operation Loop back Off Loop back On Loop Active Status MenuOver all Status Alarm Status No Alarm No Signal Receiving AIS No AlignmentLOS/CD Fail CD Fail Interface Status User RateLine Rate Operating Mode Link Mode Network Mode Test Menu Local loopLocal loop from menu Top level display shows Loc Loop Off Loc Loop On Loopback Local loop from DTELoopback is applied by selecting the display Loopback Off Loopback On Remote Loop Remote Loop from menuRem Loop Off Rem Loop On Bin Keys Off Sending Bin Binary PatternsRemote loop from DTE Error Count Bit Error Rate BER = User Data Rate x Time Data TestOverview Operation Errors nnnnnn Errors s000001Errors Data Test Injection Mode Transparent ModeInjecting 0s Injecting 1s Service Test Svc TestComms Evp Rx Evp Tx Time If the count is stopped the display is Stop Lamp Test Self Test Communication Channel Loopback Comm Loop Off Rate Menu Rate 4.8K Master 64K BT Slave 4.8K Option Menu 2 X.21bis 3 G.703 Asynchronous ModeSignalling Rate Character Length Char Len Line Rate Configuration MenuMaster Slave Synchronisation Type for software versions below 3 X.21 Loop ControlModem Synchronisation Type for software version V1.3 and above Ext Byte ClkExt Bit Clk Internal Clk Menu 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 Mrac Connector Pin allocation Way D-type V.36 Connector pin allocation Way D-type RS-530 Connector pin allocation Line Connector Appendix B Internal Link Settings Page Interface Modules Interface Module RS530 Interface Module 21bis Interface Module Service Test Facilities Frame Structure Appendix C In Service Test LVD Safety Statements TTE Network and Safety statements Appendix E 21 bit timing cable 15 way to 15 way D type plugs 35 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 21 bis V.36 bit timing cable 37 way to 37 way D type plugs RS530 bit timing cable 25 way to 25 way D type plugs Appendix F Troubleshooting Slave Mode 64K Rate Power 10dBmMaster Mode C 64K Rate Rate 64K

American Telecom AM64/128A manual

Models: AM64/128A