Avaya 03-300430 User Manual

If the red LED remains lit, see the previous note under 

This procedure is to be used when an EI circuit pack cannot be tested by software. This occurs 
when the EI circuit pack resides in an out-of-service PN. A short length of optical fiber is 
required for this procedure.

If this procedure is run on both endpoints of a fiber link (EI circuit packs or SNI circuit packs), 
and both check out fine, then the failure is most likely in the fiber itself, assuming neither 
endpoint circuit pack is busied out and the link remains inactive.

1. Busyout the circuit pack (EI or SNI) with the busyout board location.
2. Disconnect the transmit and receive fiber pair from the lightwave transceiver on the back of 

the circuit pack (EI or SNI) slot.

Note:

The fiber connected to the transmit side of the lightwave transceiver on one EI 
circuit pack should be connected to the receive side of the lightwave transceiver 
on the circuit pack on the opposite end of the fiber.

3. Using a fiber jumper cable, interconnect the transmit and receive jacks of the lightwave 

transceiver as shown in 

Note:

Make sure that the total length of the fiber jumper cable does not exceed the 
maximum length recommended for the fiber link connections between cabinets. 
Using cable lengths not within connectivity guidelines can adversely affect test 
results.

7.

Wait 5 minutes for SNI-BD, SNI-PEER, 

FIBER-LK, and DS1C-BD alarms to clear, 

or enter clear firmware-counters 

a-pnc or b-pnc.

Use the letter designation of the PNC that 

holds the replaced component (the 

standby PNC).

8.

Enter status pnc.

If either PNC’s state of health (SOH) is 

not “functional,” consult 

9.

Enter release pnc.

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