10-8
Issue 9 October 1998
363-206-204
Operational Tests
2. Unseat the second TGS. On the user panel, the MN alarm should extin-
guish and the CR alarm should light. Also, due to the loss of timing other
circuit packs may alarm.
3. Reseat the first TGS which was removed. The ACTIVE LED on the
reseated TGS should light, and the FAULT LED on the TGS will light for
several seconds then extinguish. On the user panel, the CR alarm should
extinguish and the MN alarm should light. If other circuit packs are in alarm
due to loss of timing, wait until their alarms clear.
4. Reseat the second TGS. The ACTIVE LED on the first TGS should remain
on, and the ACTIVE LED on the second TGS should remain off. The FAULT
LED on the replaced TGS will light for several seconds then extinguish. On
the user panel, the MN and NE ACTY alarms should extinguish.
Low Speed, BBF1B (DS1) (all Releases),
BBF3 (DS1PM) (Releases 6 through 9)
or BBF8 (HDSL)
NOTE
:
This procedure should be performed on each low speed function group
equipped with protection (that is, a low speed pack in position 8).
1. Unseat one service (positions 1 through 7) low speed circuit pack. On the
user panel, the MN and NE ACTY alarms should light.
2. Unseat a second service low speed circuit pack in the same function group.
On the user panel, the MN alarm should extinguish and the MJ alarm
should light.
3. Reseat the first low speed pack which was removed. The FAULT LED on
the reseated low speed pack will light for several seconds then extinguish.
On the user panel, the MJ alarm should extinguish and the MN alarm
should light.
4. Reseat the second low speed pack. The FAULT LED on the reseated low
speed pack will light for several seconds then extinguish. On the user
panel, the MN and NE ACTY alarms should extinguish.
Manual Protection Switching Test
Description
This test will verify manual protection switching commands, using a terminal and
proper LED indications. Perform this test on all shelves if a terminal is available. If
a Group 2 shelf is equipped with more than one pair of OLIUs, repeat the test for
each pair of OLIUs.
To Next Page
Loading...
Need help?
General
