Alarms - General Information - Symmetricom XLi User Manual

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Alarms - General Information

With Alarm Disabled, an F73 indicator does not trigger and alarm when it enters an Unlocked or Fault
state.
With Alarm Enabled, an F73 indicator triggers an alarm when it enters an Unlocked or Fault state, and
the following events take place:
• The Alarm Status LED changes color from green to amber or red
card positions are referred to by Option Bay number (see Figure 6)." on page
• The ALARM output on the rear panel changes from low Z to high Z (impedance).
• If configured, SNMP sends a trap out over the network port.
The following items may delay an unlocked or fault state from triggering an alarm immediately:
• Timeout and Timeout Delay postpone Time Error alarms for a user-configured interval.
"Timeout and Timeout Delay" on page 101.
• Power-on Alarm Suppress prevents alarms from being triggered for a user-configured interval
after the XLi boots and starts.
The following sections provide detailed information about each of the alarm indicators and settings avail-
able in function F73.
Table C gives the following information:
• The name of the indicator or setting
• The factory default setting for an XLi with a single GPS receiver installed
• The status reported by each indicator, or the range for each setting
Table C: Indicators and Settings under function F73
Name
Clock Status
PLL Locked
LPN PLL Locked
GPS Primary Receiver
GPS Secondary Receiver
IRIG Fault
Aux Ref Fault
Primary Power
Secondary Power
Rubidium oscillator
DAC
XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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See "Power-On Alarm Suppress" on page 101.
Default Status
Enabled Locked or Unlocked
Enabled Locked or Unlocked
Disabled - *A Locked or Unlocked
Enabled - *A OK or Fault
Disabled - *A OK or Fault
Disabled - *B OK or Fault
Disabled - *B OK or Fault
Enabled OK or Fault
Disabled - *A OK or Fault
Disabled - *A OK or Fault
Disabled - *C OK or Fault
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(See "C: SNMP" on page
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