3.6: AL1PLS
Issue 9, May 1999
FNC and FNC Customer Use Only
Vol. ll, Page 480.3-8
Maintenance and Trouble Clearing
FJTU-320-515-480
3.6
AL1PLS
3.7
APSB
Table 3-4: AL1PLS (All-Ones Pulse Generated)—Standing Condition
AID
Type
Direction
Probable Cause
Suggested Corrective Action
T1
NA
The internal all-ones test signal
has been connected to the external
clock output port (T1) for test
purposes.
Check to see if testing is complete before
disconnecting the test signal.
T3
RCV
The internal all-ones test signal
has been connected to the DS3
channel (T3) for test purposes.
Check to see if testing is complete before
disconnecting the test signal.
Table 3-5: APSB (Automatic Protection Switching Byte Failure)—Alarm Event
AID
Type
Direction
Probable Cause
Suggested Corrective Action
OC3
TRMT/RCV
An automatic protection switching
(APS) channel byte failure. The
APS bytes (K1/K2) are in an invalid
state.
• Check for OC-3 near- and far-end
optical channel unit failures.
• Check for failure indicators in the
HS1A-AD1 unit. To replace the unit,
refer to Section 4.10, Replacing the
High-Speed Switch Control (HS1A)
Unit.
Summary of Contents for FLM 150 ADM
Page 4: ......
Page 6: ......
Page 30: ...This page intentionally left blank ...
Page 42: ...This page intentionally left blank ...
Page 92: ...This page intentionally left blank ...