Symmetricom TimeHub 5500 System Manual

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097-55501-01 Issue 6 – June 2003 171
2
5
3
Maintenance
Fail Off No hardware or firmware
failure has occurred on the
management card.
None required.
Red A hardware or firmware failure
has occurred on the
management card.
Replace the card using
Procedure 5-3.
SHELF POWER –
48V
A Fail
Off The –48V A input is at the
normal voltage level.
None required.
Red The –48V A input is below the
normal voltage level.
Troubleshoot and repair the A
–
48 V battery input.
SHELF POWER –
48V
B Fail
Off The –48V B input is at the
normal voltage level.
None required.
Red
The –48V B input is below the
normal voltage level.
Troubleshoot and repair the B
–
48 V battery input.
ALARMS
System Minor
Off There is no minor alarm
outside the shelf.
None required.
Red A minor alarm condition exists
outside the shelf.
Refer to the TL1 Reference (see
RTRV-ALM) to determine which
minor alarm occurred and the
recommended action.
ALARMS
System Major
Off There is no major alarm
outside the shelf.
None required.
Red A major alarm condition exists
outside the shelf.
Refer to the TL1 Reference (see
RTRV-ALM) to determine which
major alarm occurred and the
recommended action.
If there is also a minor system
alarm, it will not be shown on the
front panel because only the
highest severity alarm of a group
(system or shelf) is illuminated.
If there is a minor system alarm
and the major system alarm
ends, the minor system alarm
LED will then light.
Table 5-3. Management Card Front Panel Items (Cont’d)
Name State Description
Action

Symmetricom TimeHub 5500 Specifications

General

Brand	Symmetricom
Model	TimeHub 5500
Category	Data Loggers
Language	English