12713020-002-2 Revision D – April 2004
SSU-2000 User’s Guide 243
Alarm Messages
Table A-1. Clock Module Alarm Messages
Alarm
Description
Alarm
Number
Default
Alarm
Level
Status
Messages
Description/
Corrective Action
Status of
module-to- module
communication
0
Minor
Communication OK
Communication
Bad
Unable to communicate
with other modules.
Re-seat modules.
Input reference
available status
1
Minor
Ok
Invalid
Input reference is not
available. Perform the
following:
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
When the Input reference
recovers, the alarm clears.
Frequency mode
degradation
2
Minor
Ok
Holdover
Invalid reference input
causes Holdover. Verify
input setup.
Frequency control
parameters within
specification
3
Major
Ok
Out of Range
The reference input
frequency is over the clock
pull-in range.
Output frequency
status within
specification
4
Minor
Ok
Degraded
Output exceeded pull-in
range of oscillator. Select
new input reference.
Clock module
usable as the
output reference
5
Minor
Ok
Invalid
Clock mode has warmed
up.
Status of the
numerically
controlled oscillator
phase lock loop
6
Minor
Ok
Not Locked
Alarm clears within one
minute after module is
installed. If alarm persists,
re-seat modules.
Status of the local
oscillator phase
lock loop
7
Minor
Ok
Not Locked
Alarm will clear within one
minute after module is
installed. If alarm persists,
re-seat module.
Summary of Contents for SDU-2000
Page 12: ...12 SSU 2000 User s Guide 12713020 002 2 Revision D April 2004 ...
Page 18: ...18 SSU 2000 User s Guide 12713020 002 2 Revision D April 2004 ...
Page 390: ...SNMP Protocol 390 SSU 2000 User s Guide 12713020 002 2 Revision D April 2004 ...
Page 420: ...I O Connector Grounding 420 SSU 2000 User s Guide 12713020 002 2 Revision D April 2004 ...