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TimeProvider 2300/2700 User’s Guide
098-00564-000 Revision A3 – July, 2013
Chapter 5 Maintenance and Troubleshooting
Troubleshooting
Diagnosing the TP 2300/2700
Reading LED Conditions
shows the function of the LED indicators on the front panel of the unit.
System in Holdover
Not tracking T1/E1 Input
(GNSS LED is OFF)
Loss of Signal (LOS) of
E1 Input
Check connection for T1/E1 input
Check T1/E1 input source
Alarm Indication Signal
(AIS)
Check T1/E1 input source
Out of Frame (OOF)
Check T1/E1 input source
Signal amplitude level
Check T1/E1 input source
Check cables
System stays in warm-up
Warm-up still in progress
Typical warm-up time is:
Quartz 6
minutes
Rubidium
9
minutes
Note:
Warm-up times may vary based on
environmental conditions and other factors.
Table 5-3. LED Conditions
Indicator
Label
Description
Corrective Action
Power
Indicator
POWER
Green - Power available
n/a
Off - Power not available
Check power supply
,“No LED lit ” for
probable causes and more
corrective actions.
Table 5-2. Troubleshooting Symptoms
Symptom
Probable Cause
Troubleshooting Procedure /
Corrective Action