DS1-FAC (DS1 Facility)
Issue 1 May 2002
8-681
555-233-143
Table 8-266.
Test #799 Near-End External Loop-Back Test
Error
Code
Test
Result
Description / Recommendation
2100
ABORT
Could not allocate the necessary system resources to run this test.
2000
ABORT
Timed out while waiting for a response from the circuit pack.
2300
ABORT
The downlink message necessary to run this test could not be sent.
2301
ABORT
The timer could not be set before sending the downlink message necessary to
run this test.
1. Retry the command at 1-minute intervals up to 3 times.
2316
ABORT
Fiber link is not administered. Administer the DS1 CONV fiber link via the add
fiber-link command.
2321
ABORT
DS1 facility is not busied out. Busyout the DS1 facility via the busyout
ds1-facility command. If there is only one DS1 facility, then busyout the DS1
CONV circuit pack via the busyout board command.
2332
ABORT
With this system configuration, test is not allowed to execute at the far end
when there is only one DS1 facility available. Check the green LED at the face
plate of the DS1 CONV circuit pack. The green LED should be on if the loop is
complete.
2500
ABORT
Internal system error
1. Retry the command at 1-minute intervals up to 3 times.
FAIL
Near-end external loop back failed. A problem exists in the path of the loop
back.
1. If the test is executed as a part of an error analysis, then return back to the
related section.
2. Enter display errors and follow the associated repair procedures for any
on-board DS1C-BD errors.
3. If the loop-back point is LB 1, replace connectors and cables between the
DS1 CONV A and the CSU A. If the loop-back point is LB 2, replace
CSU A. Also see the repair procedure for Error Type #1025 (loss of frame
alignment).
4. If the test still fails, replace DS1 CONV A circuit pack.
Any
PASS
Transmission through the path of the loop back is successful. TN1654 DS1
facilities will display the round trip delay time in milliseconds in the
Error
Code
field. The round trip delay time is defined as the length of time in
milliseconds it takes for the firmware to receive the test pattern after it has been
sent. This measurement is taken on the last DS1 channel tested.
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 ...