Clock Module Alarm Messages - Symmetricom SSU-2000 User Manual

Table A-1. Clock Module Alarm Messages
Alarm
Description
Status of
module-to- module
communication
Input reference
available status
Frequency mode
degradation
Frequency control
parameters within
specification
Output frequency
status within
specification
Clock module
usable as the
output reference
Status of the
numerically
controlled oscillator
phase lock loop
Status of the local
oscillator phase
lock loop
12713020-002-2 Revision D – April 2004
Default
Alarm
Alarm
Number
Level
0 Minor
1 Minor
2 Minor
3 Major
4 Minor
5 Minor
6 Minor
7 Minor
Status
Messages
Communication OK Unable to communicate
with other modules.
Communication
Re-seat modules.
Bad
Ok Input reference is not
available. Perform the
Invalid
following:
When the Input reference
recovers, the alarm clears.
Ok Invalid reference input
causes Holdover. Verify
Holdover
input setup.
Ok The reference input
frequency is over the clock
Out of Range
pull-in range.
Ok Output exceeded pull-in
range of oscillator. Select
Degraded
new input reference.
Ok Clock mode has warmed
up.
Invalid
Ok Alarm clears within one
minute after module is
Not Locked
installed. If alarm persists,
re-seat modules.
Ok Alarm will clear within one
minute after module is
Not Locked
installed. If alarm persists,
re-seat module.
Alarm Messages
Description/
Corrective Action
Check the Input
reference settings
Check the Input port's
status
Check that the phase
value is valid
Ensure that the Input port
priority is set
Verify that the PQL value
is equal to or greater
than the clock PQL value
SSU-2000 User's Guide 243