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097-55501-01 Issue 6 – June 2003 165
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5
3
Maintenance
Alarm
Off There is no alarm condition. None required.
Red An alarm condition exists.
If the Fail lamp is also lit, replace
the card using Procedure 5-2. If
not, check the output driver card
lamps and other card lamps,
and/or troubleshoot the error
message(s) to determine the
cause of the failure.
Refer to the
TL1 Reference for details on
error
messages
. General reasons why
Alarm LED could be uniquely lit:
1. If the card has never been
initialized this LED remains
lit. This could be an indication
of a communication problem
since the active clock card
should perform the
initialization. If there is no
clock card in the shelf the
output card would not be
expected to initialize and the
LED would remain lit.
2. If the output card contains
FPGA version B or later the
Alarm LED will light if there is
a port alarm detected. For
details, see “Output Port
Alarms in TimeHub 5500” in
the Functional Description
section of Chapter 1. The
FPGA version can be seen at
the end of output card version
information in RTRV-
NETYPE-ALL response.
Also, in Chapter 1, a
procedure is described for
attempting to clear a port
alarm. See “Clearing of False
Port Alarms” in “Output Driver
Cards” section in Chapter 1.
Table 5-2. Output Driver Card Front Panel Items (Cont’d)
Name State Description
Action
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