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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1285TBRI-PT (TN2185 ISDN Trunk-Side BRI Port)
10
e. Error Type (1025): An expired timer has created an unexpected event.
The timer could be any of the following:
f. Error Type (1281): This error occurs when the NPE Crosstalk Test (#617)
has failed. The test will be repeated every 15 minutes until it passes.
Follow normal trouble shooting procedures for NPE Crosstalk Test (#617).
If this does not fix the problem, follow normal escalation procedures.
g. Error Type (1537): The board received a bad Cyclical Redundancy Check
(CRC) over the D-Channel. This error is reported on a per-port basis.
When the 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 1 minute. If 5
more CRC errors are received within 15 minutes of the previous 5, the port
is taken out of service for 15 minutes.
This error is most likely due to a problem with backplane wiring, a noise
source, or no termination (an open circuit). It usually does not indicate a
problem with the circuit pack.
1. Check the backplane wiring.
2. If the problem persists escalate the problem.
h. The BRI Port Local TDM Loop Around Test (#619) failed. Run the Long
Test Sequence paying particular attention to the results of the BRI TDM
Port Loop Test (#619).
i. The Layer 2 Link Query failed. The test will be repeated every 15 minutes
until it passes.
j. The Remote Layer 3 Query failed. The test will be repeated every 15
minutes until it passes.
k. A frame of information had to be repeated or deleted. Slips usually occur
when the received bit rate is not synchronized with the TDM Bus clock.
l. Error Type (3586): Each port can support up to three Terminal Endpoint
Identifiers (TEIs). Each channel on the port can request a TEI assignment
from the switch if it supports ISDN-BRI TEI assignment procedures. If
Timer Event
T3031 ISDN T3031 timeout
T3032 ISDN T3032 timeout
T305 ISDN T305 timeout
T3081 ISDN T3081 timeout
T3082 ISDN T3082 timeout
TL3 Status Inquiry
T304 Setup ACK
T310 Call Proceeding Receive
T313 Connect SEND