Chapter 5 Testing the TimeProvider

Verifying Normal Operation

Table 5-1. LED Conditions for the IOC (Continued)

LED Name

Condition

Description

 

 

 

Holdover

Off

Tracking at least one input

 

 

 

PRS

Q LED Green, A LED Green

Enabled, qualified, and active

 

Q LED Green, A LED Off

Enabled, qualified, and not active

 

Q LED Red, A LED Off

Enabled and not qualified

 

 

 

Input 1

Q LED Green, A LED Green

Enabled, qualified, and active

 

Q LED Green, A LED Off

Enabled, qualified, and not active

 

Q LED Red, A LED Off

Enabled and not qualified

 

 

 

Input 2

Q LED Green, A LED Green

Enabled, qualified, and active

 

Q LED Green, A LED Off

Enabled, qualified, and not active

 

Q LED Red, A LED Off

Enabled and not qualified

 

 

 

GPS

Off

1 PPS signal is not present

 

Green

1 PPS signal is active

 

Amber

Bridging mode fault

 

Red

Loss of 1 PPS signal, TPIU fault, or

 

 

antenna fault

 

 

 

Table 5-2shows the condition of the LED indicators on the front panel of the IMC under normal operating conditions.

Table 5-2. LED Conditions for the IMC and IMC/TPIU

LED Name

Condition

Description

 

 

 

Power

Green

Power is On

 

 

 

Fail

Off

No failure

 

 

 

Alarm

Off

No alarm

 

 

 

Critical

Off

No Critical alarms

 

 

 

Major

Off

No Major alarms

 

 

 

Minor

Off

No Minor alarms

 

 

 

ACO

Off

Alarm cutoff disabled

 

 

 

097-58001-02 Revision G – April 2008

TimeProvider User’s Guide 147

Page 147
Image 147
Symmetricom 1000, 1100 manual Prs, Aco