Symmetricom TimeHub 5500 System Manual

158 097-55501-01 Issue 6 – June 2003
1
TimeHub 5500 System Guide
Table 5-1. Clock 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 clock card
are off, replace the card using
Procedure 5-1.
4. If the Fuse lamp is lit, replace
the fuse using Procedure 5-5.
5. If the replacement fuse fails,
replace the card using
Procedure 5-1.
Green Power is present. None required.
Fuse
Off
The clock card fuse is not
open. None required.
Red The clock card fuse is open. 1. Remove the clock card, and
replace the fuse using
Procedure 5-5.
2. If the replacement fuse fails,
replace the card using
Procedure 5-1.
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 5-1. If
not, check the clock card lamps
and other card lamps, and/or
troubleshoot the error
message(s) to determine the
cause of the alarm.
Refer to the
TL1 Reference for details on
error
messages
.
Fail
Off
No hardware or firmware
failure has occurred on the
clock card.
None required.
Red
A hardware or firmware failure
has occurred on the clock
card.
Replace the card using
Procedure 5-1.

Symmetricom TimeHub 5500 Specifications

General

Brand	Symmetricom
Model	TimeHub 5500
Category	Data Loggers
Language	English