
Maintenance-Object Repair Procedures
555-233-143
8-728
Issue 1 May 2002
d. An in-link maintenance error has generated an off-board warning due to
some problem with the link to the voice terminal. This can be ignored if no
user complaints are received. Otherwise, make sure the voice terminal is
connected, check for defective wiring, check for a defective voice terminal,
and move voice terminal to a jack that is closer to the switch (number of
feet of wiring between the jack and the switch). If the problem still exists,
replace the circuit pack. Once the problem has been resolved, the alarm is
retired after a predetermined amount of time.
e. The local loop test failed. Each failure increments the counter by 1 when
the local loop test fails. The counter is decremented when the loop test
passes. When the counter reaches a threshold of 3, an on-board MINOR
alarm is raised.
f. The NPE Crosstalk test failed. The counter is incremented by 1 when the
NPE Crosstalk test fails. The counter is decremented by 1 when the NPE
Crosstalk test passes. When the counter reaches a threshold of 3, an
on-board MINOR alarm is raised and the board is taken out of service.
g. The station went off-hook while it was in the ready-for-service state. Use
the status station command to determine the state of the station. The
off-hook should have moved the station to ready-for-service. No technician
action is necessary.
h. No terminal is connected to the Digital Line board. No maintenance action
is required.
i. The circuit pack’s message buffer is full. This may be caused by having
many display phones with heavy traffic connected to the circuit pack. No
action is necessary.
j. Internal system error; no action is necessary. The error counters 1, 2, 3, 4,
5, 6, 10, 11, 12, 13, 14, 15, and 16 do not have any significance for this
MO.
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in the table below when inspecting
errors in the system. For example, by clearing error codes associated with the
Voice and Control Channel Local Loop Around test (#13), 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
Voice and Control Channel Local Loop Around test (#13)
X
D
NPE Crosstalk test (#9)
X
ND
Station Lamp Updates test (#16)
X
ND
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...