Avaya 03-300430 User Manual

FAIL 

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Procedure 2: - This procedure attempts to isolate the Serial Bus failure to a 

particular set of carriers. Only the circuit packs in selected carriers are 

checked. Procedure 2 is organized into two parts. Part 1 attempts to clear 

the Serial Bus fault by replacing all the bus cabling and terminators within a 

port-network. Part 2 attempts to isolate the fault to a particular carrier by 

extending the Serial Bus from the A carrier to additional carriers one at a 

time.

!

WARNING:

Power must be removed from the entire port network before 
any cables or terminators are removed. Failure to follow this 
procedure can cause damage to circuit packs and power 
supplies, and can be hazardous to the technician.

1. If spare TDM/LAN Cable assemblies and TDM/LAN Bus Terminators 

are not available, go to Part 2 of this procedure.

2. Power down the port network.

3. Replace all of the TDM/LAN Cable Assemblies and both TDM/LAN 

Bus Terminators.

4. Restore power to the port network.

5. Run list configuration power-supply C to determine if the 

Serial Bus fault is still present.

6. If the Serial Bus fault is resolved, the procedure is completed. 

Otherwise, go to Part 2.

1. Terminate the TDM/LAN Bus so that it extends only across the carrier 

that contains the A carrier TN2312BP IPSI.

2. Determine if the Serial Bus fault is still present by running list 

configuration power-supply C.

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