Filter
Top Products
EXP-INTF (Expansion Interface Circuit Pack)
Issue 1 June 2005 1197
o. Error Type 3073: Perform the following steps for Error Type 3073:
1. Execute display errors and resolve any errors on the following: PKT-BUS, PKT-INT,
PDATA-BD, PGATE-BD, BRI-BD, BRI-PT, BRI-SET/ASAI, UDS1-BD.
2. Enter test board location r3 for this circuit pack. If this error continues to appear,
replace the EI circuit pack.
p. Error Types 3074 and 3075: failures of the EI circuit pack Packet Path test. This packet
path test exercises circuitry on the EI circuit pack, the neighbor EI or SNI circuit pack, and
any intervening DS1 converter circuit packs (if the PN is remoted).
1. Certain packet-bus faults can cause these errors without the EI being defective. Check to
see if PKT-BUS errors are also present. If they are, use the PKT-INT (Packet
Interface) on page 1799 section of this chapter and Isolating and repairing packet-bus
faults in Maintenance Procedures (03-300192) to diagnose the problem.
2. If Error Type 3075 is present without Error Type 3074, replace the EI circuit pack.
3. If Error Type 3074 exists with or without 3075, run test board location on the EI,
and follow the repair procedures for any test that does not pass.
4. If PKT-BUS errors are absent and replacing the EI does not resolve the problem, there is
still the possibility of a packet-bus fault. See Isolating and repairing packet-bus faults
in
Maintenance Procedures (03-300192).
q. Error Type 3330 indicates a failure of a diagnostic component on the EI circuit pack. The
failed component will not impair service, but it may leave the EI circuit pack in a state where
the EI circuit pack cannot detect errors.
1. Replace the EI circuit pack at a time when it is most convenient for the customer (this
may cause service outages).
r. Error Type 3585 indicates that the EI circuit pack experienced a series of very short
out-of-frame conditions within several minutes. This may indicate transmission difficulties
over the fiber link. If this condition ceases, the warning alarm should be resolved within 15
minutes.
1. Enter display errors and resolve any SNC-BD, TDM-BUS, TDM-CLK or SYNC
errors.
2. Perform the “Fiber Fault Isolation Procedure” described in Chapter 5.
3. If the alarm is not resolved within the next 15 minutes, replace the lightwave transceiver
on the EI circuit pack reporting the problem and on the connected EI circuit pack, SNI
circuit pack, or DS1 converter circuit pack.
4. If the alarm is not resolved within the next 15 minutes, replace the EI circuit pack
reporting the alarm.
5. If the alarm is not resolved within the next 15 minutes, replace the connected EI circuit
pack, SNI circuit pack or DS1 converter circuit pack.
s. Error Type 3841 indicates the EI has reported a loss of lock with the backplane system
clock.