Maintenance Object Repair Procedures
555-233-123
10-1150 Issue 4 May 2002
Digital Port Loop Around Test (#13)
This test is a modification of the Voice and Control Channel Local Loop Test used
by Digital Station (DIG-LINE) maintenance. This test does not perform the control
channel and secondary information channel loop around tests as described for
DIG-LINE, as these data paths do not exist for the Maintenance/Test Digital Port.
The primary information channel is tested by first looping back the data channel
onto the TDM Bus, and then sending a digital count from the Tone-Clock circuit
pack and receiving the same digital count with a general purpose tone detector. A
conference test is done next for the primary information channel. This test is the
same as Conference Test #6.
1004 ABORT The port has been seized by a valid ISDN-PRI test call.
Use the list isdn-testcall command to determine which
call is using the port (from the M/T Port column). Either wait
for the test call to complete (as indicated in the Start Time
and Duration fields of the above display), or abort the test
call with clear isdn-testcall tg/mem, where tg/mem is
determined from the B-channel field of the above display.
1. Retry the command at one-minute intervals a
maximum of 5 times.
2. If the test continues to abort and the port is not in use,
escalate the problem.
2000 ABORT Response to the test request was not received within the
allowable time period.
2100 ABORT System resources required to run this test are not
available.
1. Retry the command at one-minute intervals a
maximum of 5 times.
Any FAIL The NPE of the tested port was found to be transmitting in
error. This causes noisy and unreliable connections.
1. If the remaining ports are currently not in use (yellow
LED is off), try to reset the circuit pack. Then repeat the
test.
2. If the test fails again, replace the circuit pack.
PASS The port is correctly using its allocated time slots.
User-reported troubles on this port should be investigated
using other port tests and by examining station, trunk, or
external wiring.
Table 10-433. TEST #9 NPE Cross Talk Test — Continued
Error
Code
Tes t
Result Description/Recommendation
Continued on next page
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