Avaya 03-300430 User Manual

2

FAIL

The test tone was transmitted and detected correctly, but the correct data 
packet was not detected by the TN1655 Packet Interface circuit pack.

1. Test the TN1655 Packet Interface circuit pack to verify that it is 

functioning properly. If any tests fail, investigate those tests and repair 
the Packet Interface circuit pack.

2. If the Packet Interface circuit pack checks out OK, enter display 

errors and display alarms and resolve any SNI-BD and 

FIBER-LK alarms or errors (Center Stage Switch only) and DS1C-BD 
alarms or errors (if present).

3. Enter test board location long on the EI board.
4. If Test #242 continues to fail, replace the EI board. Then enter test 

board location long for the new EI board.

5. If Test #242 continues to fail, replace the lightwave transceiver, reset 

the circuit pack and enter test board location long on the EI 

circuit pack.

PASS

When this test (#242) and the EI Local Looparound test (#240) pass, this 
indicates that the EI board is functioning properly, but it does not verify that 
the optical portion of the lightwave transceiver is functioning.

1. Enter test board location on the EI board on both ends of fiber. If 

this test passes from both sides, but other tests fail, such as #241, this 
condition indicates either a faulty lightwave transceiver or the fiber itself 
has failed. To determine whether a lightwave transceiver or the fiber 
itself has failed, execute the EI Manual Loop-Back procedure described 
in a previous section.

Test #242 can only be run from both EIs if they are the standby pair and 
the active pair is working properly.

2. If this EI board is failing other tests, execute the EI Manual Loop-Back 

Test.

3. If problems still exist after the EI Manual Loop-Back Procedure 

indicates both EI boards and both lightwave transceivers are healthy, 
manually check out the building fiber. Verify that each optical fiber 
connects to a transmitter at one end and a receiver at the other.

 5 of 6