Avaya Definity SI, Руководство по обслуживанию, Страница: 970 / 2968

Maintenance Object Repair Procedures
555-233-123 10-184 Issue 4 May 2002
c. The port received an invalid frame over the D-channel. When the Cyclical
Redundancy Check (CRC) errors exceed 5 within 15 minutes, the port is
taken out of service for 5 seconds. If 5 more CRC errors are received within
15 minutes of the first set of 5 errors, the port is taken out of service for one
minute. If 5 more CRC errors are received within 15 minutes of the last 5,
the port is taken out of service for 15 minutes.
This error is most likely due to a problem with the wiring to the set or
adjunct, interference on the wiring due to a noise source, or no termination
(an open circuit). It usually does not indicate a problem with the circuit
pack.
■
Check the wiring to the endpoints or the adjunct.
■
If the problem persists, replace the endpoints or adjuncts.
d. This error occurs when a Layer 1 Transmission error is detected for the
port. Run the Long Test Sequence and note the results of the Layer 1
Transmission Error Counter Test (#624).
e. This error occurs when the circuit pack detects an overflow of its receive
buffers. Run the Long Test Sequence and note the results of the Receive
FIFO Overflow Counter Test (#625).
f. This error occurs when the BRI Port Local LAN Looparound Test (#618)
fails. Run the Long Test Sequence and note the results of Test (#618).
g. The Terminal Endpoint Identifier (TEI) administered for the ASAI endpoint
most likely does not match the TEI administered in the ASAI adjunct.
Check the switch administration of the TEI against that of the adjunct, and
make sure that both are using the same TEI.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the following tables when
inspecting errors in the system. For example, by clearing error codes associated
with the NPE Crosstalk Test, you may also clear errors generated from other tests
in the testing sequence.
Order of Investigation
Short Test
Sequence
Long Test
Sequence
D/ND
1
1 D = Destructive; ND = Nondestructive
ASAI Port Local LAN Looparound Test (#618) X D
Level 1 Status Inquiry Test (#621) X X ND
CRC Error Counter Test (#623) X ND
Layer 1 Transmission Error Counter Test (#624) X ND
Receive FIFO Overflow Error Counter Test
(#625) X ND
Clear Error Counters (#270) X X ND