Maintenance Object Repair Procedures
555-233-123
10-782 Issue 4 May 2002
2026 ABORT Expansion Interface circuit pack responded with an unknown
reply.
1. Retry the command at 1-minute intervals a maximum of 5
times.
FAIL Expansion Interface circuit pack could not detect framing
sequence.
1. Check if the Expansion Interface circuit pack on the
opposite end of the fiber is present and if its cabinet has
power.
2. Verify that the lightwave transceiver is connected to the
correct slot on the back of the cabinet and that the fiber is
connected to the lightwave transceiver. Verify this
connection on both ends of the fiber. Check that an
Expansion Interface circuit pack detects its lightwave
transceiver by executing the reset board PCSS
command, where PCSS refers to the Expansion Interface
circuit pack. If the reset passes, the Expansion Interface
circuit pack detects a lightwave transceiver. Refer to the
description of the Expansion Interface Reset Test (#336) if
the reset fails.
3. Verify that fiber transmit and receive ends have not been
crossed when connected to the lightwave transceiver.
4. The problem may be due to a synchronization timing loop.
Use the status sync command to determine which circuit
pack is the synchronization reference. If the reference is a
DS1 Interface circuit pack, use the set sync command to
make a Tone-Clock circuit pack the reference. If this action
causes the Expansion Interface to go into frame,
synchronization must be examined for a possible timing
loop. Refer to SYNC (Synchronization) Maintenance
documentation for repair procedures. If the DS1 Interface
circuit pack is not a reference, and the Expansion
Interface circuit pack that is failing Test #238 is in the PPN,
run tests on Tone-Clock circuit pack in the PPN to
determine if clocks are present. If the Expansion Interface
circuit pack that is failing Test #238 is in the EPN, and the
red LEDs are ON on a large number of circuit packs, then
reseat any Tone-Clock circuit packs in the EPN.
More information follows.
Table 10-290. TEST #238 EI Fiber Out-of-Frame Query Test — Continued
Error
Code
Tes t
Result Description/Recommendation
Continued on next page
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