Symmetricom TimeProvider 5000 User Manual

376 TimeProvider 5000 User’s Guide 098-00028-000 Revision F – May, 2012
Chapter 6 Maintenance and Troubleshooting
Troubleshooting
Diagnosing the IOC  Reading LED Conditions
Table 6-3 shows the function of the LED indicators on the IOC.
System in Holdover
Not tracking E1 Input
(GPS LED is OFF)
Loss of Signal (LOS) of
E1 Input
Check connection for E1 input
Check E1 input source
Alarm Indication Signal
(AIS)
Check E1 input source
Out of Frame (OOF) Check E1 input source
Signal amplitude level Check E1 input source.
Check cables
System stays in warm-up ToD source (GPS or E1)
invalid
Check Input source.
Check alarms with “show alarm-config”
command.
Warm-up still in progress Typical warm-up time for the Active card
is:
Quartz 30 40 minutes
Rubidium
50 60 minutes
Standby IOC starts locking to Active IOC
after Active IOC enters normal track.
Allow an additional ~20 minutes for
Standby card to completes warm-up.
Table 6-3. LED Conditions for the IOC
Indicator Label Description Corrective Action
Power
Module Power
Indicator
PWR Green - Module power available n/a
Off - Module power not available Check power supply
See
Table 6-2 ,“No LED lit on
any module” for probable causes
and more corrective actions.
Table 6-2. Troubleshooting Symptoms
Symptom Probable Cause
Troubleshooting Procedure /
Corrective Action

Symmetricom TimeProvider 5000 Specifications

General

Brand	Symmetricom
Model	TimeProvider 5000
Category	Server
Language	English