The System View screen shows the system status with the LEDs displaying in real-time to indicate changes on the TimeSource. The LED color code is described in the table below.
Click Refresh to update the System view.
Name |
State |
Description |
Action |
Status GPS |
Off |
System is not powered. |
If in warm-up, none required. If there is no power, apply power. |
Green |
GPS is successfully tracking satellites, or is in warm-up. |
None required. |
|
Yellow |
A GPS event has occurred. |
None required. |
|
Red |
A GPS event, which has existed per the user alarm setting, has escalated to a minor alarm. |
Refer to "Troubleshooting with Error Messages" in the user's guide to determine which type and combination of antenna alarms exist, and the recommended action. |
|
Status SYS |
Off |
System is in warm-up mode or is not powered. |
If in warm-up, none required. If there is no power, apply power. |
Green |
The output signal is PRS. |
None required. |
|
Red |
The system has been in holdover per the user alarm setting, or there is a hardware fault. |
Refer to "Troubleshooting with Error Messages" in the user's guide to determine which type and combination of alarms exist, and the recommended action. |
|
Alarms CRIT |
Off |
There is no critical alarm. |
None required. |
Red |
A critical alarm has occurred because of a hardware failure. |
Replace the plug-in card. |
|
Alarms MAJ |
Off |
There is no major alarm. |
None required. |
Red |
The system has been in holdover per the user alarm setting. |
Refer to "Troubleshooting with Error Messages" in the user's guide to determine which type and combination of antenna alarms exist, and the recommended action. |
|
Alarms MIN |
Off |
There is no minor alarm. |
None required. |
Yellow |
One of the following four alarms has occurred. |
|
|
1 |
A minor alarm has occurred because Battery A or B has failed. |
Troubleshoot and repair the specified –48 V battery input. |
|
2 |
A minor alarm has occurred because a software download is required. |
Refer to "Troubleshooting with Error Messages" in the user's guide to determine which software needs to be downloaded and the recommended action. |
|
3 |
A minor alarm has occurred because an event (GPS error, temperature error, or span input problem) has escalated to a minor alarm. |
Refer to "Troubleshooting with Error Messages" in the user's guide to determine which event occurred and the recommended action. |
|
4 |
A minor alarm has occurred because the antenna failed. |
Refer to "Troubleshooting with Error Messages" in the user's guide to determine whether the minor alarm is due to antenna failure and the recommended action. |
|
ACO (Lamp) |
Off |
The alarm cutoff function has not been activated. |
None required. Press the ACO push button to silence all audible alarms. |
Green |
The alarm cutoff function has been activated. |
None required. |
|
ACO (Push button) |
— |
Silences all audible alarms when pressed |
None required. |
Retimed Spans (TimeSource3100 990-72020-04 systems only) (TimeSource3600 990-72060-04 systems only) |
Off |
This port has not been entered via the Enter Equipment command. |
None required. If desired, enter this port via the Enter Equipment command. |
Green |
This port has been entered via the Enter Equipment command, and no alarms are present. |
None required. |
|
Retimed Spans (TimeSource3100 990-72020-04 systems only) (TimeSource3600 990-72060-04 systems only) |
Red |
An event (loss of signal) has occurred on this port. |
Troubleshoot the traffic-carrying span input signal source; check the ESCIU port cable and connections. |
Retimed Spans BYP (TimeSource3100 990-72020-04 systems only) (TimeSource3600 990-72060-04 systems only) |
Off |
Traffic-carrying E1 data stream is being retimed by the TimeSource 3100/3600 System. |
None required. |
Red |
Traffic-carrying E1 data stream is bypassing the TimeSource 3100/3600 System and not being retimed because the system is in holdover. |
Refer to Table 5-2 in product User Guide to troubleshoot the GPS, SPAN x, and ROx error messages. |