Symmetricom TimeHub 5500 System Manual

170 097-55501-01 Issue 6 – June 2003
1
TimeHub 5500 System Guide
Table 5-3. Management Card Front Panel Items
Name State Description
Action
Power Off Power is not present. 1. If all lamps on the system are
off, apply power.
2. If all lamps on the system are
off, troubleshoot the –48 V
power source.
3. If all lamps on the
management card are off,
replace the card using
Procedure 5-3.
4. If the Fuse lamp is lit, replace
the fuse using Procedure 5-7.
5. If the replacement fuse fails,
replace the card using
Procedure 5-3.
Green Power is present. None required.
Fuse Off The management card fuse is
not open.
None required.
Red The management card fuse is
open.
1. Remove the management
card, and replace the fuse
using Procedure 5-7.
2. If the replacement fuse fails,
replace the card using
Procedure 5-3.
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 5-3. If
not, check the management
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 (see RTRV-
ALM) for details on
error
messages
.

Symmetricom TimeHub 5500 Specifications

General

Brand	Symmetricom
Model	TimeHub 5500
Category	Data Loggers
Language	English