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Demand test descriptions and error codes - Avaya Support

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WARNING: Power<br />

Part 1<br />

must be removed from the entire PN before any cables or terminators are<br />

removed. Failure to follow this procedure can cause damage to circuit packs <strong>and</strong><br />

power supplies, <strong>and</strong> can be hazardous to the technician.<br />

1. If spare TDM/LAN cable assemblies <strong>and</strong> TDM/LAN bus terminators are not available, go to<br />

Part 2 of this procedure.<br />

2. Power down the PN.<br />

3. Replace every TDM/LAN cable assembly <strong>and</strong> both TDM/LAN bus terminators.<br />

4. Restore power to the PN.<br />

5. Run <strong>test</strong> tdm P to determine whether the TDM-bus fault is still present.<br />

6. If the TDM-bus fault is resolved, the procedure is finished. Otherwise, continue with Part 2.<br />

Part 2<br />

1. Terminate the TDM bus so that it extends only across the carrier that contains the active<br />

Expansion Interface.<br />

2. Run <strong>test</strong> tdm P to determine whether the TDM-bus fault is still present.<br />

If the shortened TDM bus does not extend to a carrier continuing the Tone Detector circuit<br />

pack, the:<br />

● Non-control chel <strong>test</strong> (#297) will not be able to run<br />

● Bus that the non-control chel was on will not be <strong>test</strong>ed<br />

If this is the case, run set tdm PC to move the control chel to the non-active bus. The<br />

status port-network P comm<strong>and</strong> shows which bus is currently active. After the bus<br />

switch has occurred, run <strong>test</strong> tdm P again to determine whether the newly active bus is<br />

faulted.<br />

Another option is to move a Tone Detector circuit pack to an empty slot, if one is available,<br />

in the carrier where the TDM bus is terminated. This would:<br />

● Allow both the control chel <strong>and</strong> non-control chel <strong>test</strong>s to run<br />

● Not require set tdm P comm<strong>and</strong> to be run<br />

3. If none of the TDM-bus <strong>test</strong>s fail, extend the TDM bus to another carrier, <strong>and</strong> repeat the<br />

procedure in the previous step. When a carrier that causes the fault to recur is added,<br />

perform Procedure 2 for only the circuit packs in that carrier.<br />

4. If any of the TDM-bus <strong>test</strong>s fail <strong>and</strong> Procedures 2 <strong>and</strong> 3 did not resolve the problem, the<br />

added carrier(s) are defective <strong>and</strong> must be replaced.<br />

960 Maintenance Alarms for Communication Manager, Media Gateways <strong>and</strong> Servers

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