Microsemi SyncSystem 4380A, Руководство по эксплуатации и обслуживанию

Страница: 70 / 90

DOC 4380A
4380A O & M Manual
62
098-00723-000
– Jul 2017 Revision 4.0
SyncSystem 4380A O&M Manual
6
Troubleshooting
The following section provides some basic troubleshooting information to assist users in case they suspect
there is an issue with the system.
6.1 Front Panel Indications
You can use the front panel indicators to assess the status and operation of the unit. Under normal
operating conditions the user should see:

Green Status Indicator is green on both power supplies

The front panel clock should display the last two digits of the year, the correct Julian Date (see
Appendix D.) and the correct time (UTC). The time should also increment each second.

The Alarm Light is Off

The Sync and Outputs lights are green.
6.2 Alarm Light
The alarm light will turn red when the unit has detected a hardware failure or an event has occurred that
may cause the timing signals output by the unit to be outside of their specifications.

Red (Flashing)
o
Non Critical System alarm

System failed validation/startup tests.

Either power supply missing/failed or without AC/DC input power.

Red (Steady)
o
Any output module reporting a failure or is not locked to the reference
o
GPS has not been not tracking for at least 30 minutes or there is a hardware error
o
Reference clock wander has exceeded 100 ns from UTC
o
The Rubidium is unlocked.
o
Over temperature (65 C)
o
External Reference

System is unable to communicate with the external reference source or,

10MHz input from the external reference is missing and

Reference=external.
o
If syscfg in enabled, use the status syscfg:errors command to get the current list of
configuration alarms.
If the alarm light is on users can determine the exact cause of the alarm by accessing the command port and
typing the
alarms command and obtain a list of the current alarms.
If the alarm light was on and is currently off, users can connect to the command port and type the command
status health to view alarm occurrences or the syslog command to obtain the list of errors from the system
log file.
6.3 Power Supplies
The system has two power supplies and is capable of operating from either supply in the event one of them
fails. If one of the status indicators on the power supply front panel is red there is a problem with that
supply. The front panel alarm light should also be on. Power supply #1 is on the left and Power Supply #2
is on the right. The possible problems are listed below:

Power Supply has failed

Internal Fuse is open

Power Supply is unplugged, make sure the power supply is plugged in