3.43: LOCKIN
Issue 9, May 1999
FNC and FNC Customer Use Only
Vol. ll, Page 480.3-24
Maintenance and Trouble Clearing
FJTU-320-515-480
3.43
LOCKIN
3.44
LOCKOUT
Table 3-41: LOCKIN—Alarm Event
AID
Type
Direction
Probable Cause
Suggested Corrective Action
OC3
OVTG
NA
Lockin has
occurred on the
high-speed OC-3
group. Some
intermittent
failure has caused
more than four
APS events within
10 minutes.
This indication
should be
accompanied by
other OC-3 OVTG
alarms listed in
this section.
• Check the local receive and upstream transmit optical
levels to verify that no optical unit has failed or been
removed.
• Clean the optical connectors. (See Section 5.1, Handling
Fiber Cables, and Section 5.2, Cleaning, Connecting, and
Disconnecting the Optical Connectors).
• Lockin prevents continued switching under intermittent
failures that affect both the working and protection lines. If
lockin is not desired, it can be disabled by setting LIN=N for
the OC-3 group by using the following TL1 command:
ED-FFP-OC3:TID:AID:CTAG:::LIN=N;
The FLEXR GT 1.1 steps are as follows:
Provisioning
System
Set System Lockin (select unit)
Switch Lockin =Y, N
Table 3-42: LOCKOUT—Standing Condition
AID
Type
Direction
Probable Cause
Suggested Corrective Action
OC3
OVTG
NA
Manual lockout has been
applied on the OC-3 group
to prevent any automatic
switching.
• Check to see if there is a valid reason to
maintain the lockout condition.
• If appropriate, release the lockout.
Содержание FLM 150 ADM
Страница 4: ......
Страница 6: ......
Страница 30: ...This page intentionally left blank ...
Страница 42: ...This page intentionally left blank ...
Страница 92: ...This page intentionally left blank ...
Страница 196: ...This page intentionally left blank ...