363-206-305 Trouble Clearing:
Issue 3, June 2000 Page 1 of 2
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
TAP-119
Clear Brownout Condition
Flashing L in FE ID Display
1. Is fuse FA or FB blown?
If YES, do DLP-511.
If NO, proceed to Step 2.
2. Condition DMM (digital multimeter) to measure voltage.
3. !
CAUTION:
If fuse on User Panel is not blown, trouble may be a failure of
one
of the
-
48V DC power feeders. Removing the wrong fuse or disconnecting the
wrong feeder for power measurement will cause service interruption.
Measure voltage at fuse holder FA or FB.
4. Does voltage measure less than -40 volts DC?
If YES, continue with Step 5.
If NO, proceed to Step 7.
5. !
CAUTION:
During brownout conditions the
SYSCTL
will suspend normal operations.
No alarms will be gererated and CIT commands will not work. Local and
remote logins will
not
work.
Trouble in power feeder(s). Check office battery distribution panel for
low-voltage condition.
6. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
7. Is shelf equipped with BBG8 or BBG8B SYSCTL circuit pack?
If BBG8, continue with Step 8.
If BBG8B, proceed to Step 11.
To Next Page
Loading...