Symmetricom TimeHub 5500 System Manual

1
097-55501-01 Issue 6 – June 2003 177
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5
3
Maintenance
SHELF POWER
–48V
A Fail
Green 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
Green 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.
Expansion Link 1
Off The link 1 cable is not
connected.
Connect the link 1 cable.
Red The link 1 cable is attached,
but there is a problem
receiving either clock timing,
clock framing, or
communication from the
master shelf.
Check clock timing, clock
framing, and communication on
master shelf.
Green EC card is receiving proper
timing, framing,and
communication from the
master shelf.
None required.
Expansion Link 2
Off The link 2 cable is not
connected.
Connect the link 2 cable.
Red The link 2 cable is attached,
but there is a problem
receiving either clock timing,
clock framing, or
communication from the
master shelf.
Check clock timing, clock
framing, and communication on
master shelf.
Green EC card is receiving proper
timing, framing,and
communication from the
master shelf.
None required.
Table 5-4. EC 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