Demand test descriptions and error codes - Avaya Support

EXP-INTF (Expansion Interface Circuit Pack)
If the red LED remains lit, see the previous note under Expansion Interface LEDs.
Expansion Interface Manual Loopback Procedure
This procedure is to be used when an EI circuit pack cot 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 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
Step Action Explanation / Caution
2. Enter busyout pnc.
3. Enter busyout board location. location represents the
cabinet-carrier-slot location of the circuit
pack to be replaced.
4. Replace the circuit pack.
5. Enter release board location. CAUTION: Do not busyout any EI circuit
packs after this point.
6. Enter test alarms long clear for
category exp-intf.
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 PNC-DUP (PNC
Duplication).
9. Enter release pnc.
Note:
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.
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