F73 - Alarm Control / Status - Symmetricom XLi User Manual

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F73 – Alarm Control / Status
Use function F73 to do the following:
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• See the state of an indicator ("Locked/Unlocked" or "OK/Fault")
• Enable or disable the alarm for each indicator
• See the state of the Alarm Latch for each indicator and clear the Alarm Latch for all indicators
• Enable or disable blinking of the Alarm Status LED on the front panel while it is green or amber
• Set the values for Time Threshold, Timeout Delay, and Power-On Alarm Suppress
The following table summarizes F73's alarm indicators and parameters, as well as the factory settings
for an XLi without options. The factory settings vary depending on the options included at the XLi at the
time it ships from the factory. For example, for an XLi with an optional GPS receiver, the GPS Primary
Receiver indicator setting would be Alarm Enabled.
Upate the alarm settings when adding or removing option cards from the XLi.
Indicator/Parameter Name
Clock Status
PLL Locked
Low Phase Noise (LPN) PLL Locked Locked/Unlocked
GPS Primary Receiver
GPS Secondary Receiver
IRIG Fault
Aux Ref Fault
Primary Power
Secondary Power
Rubidium oscillator
(XLi w. optional Rubidium oscillator)
DAC
First Time Lock
Time Error
Time Threshold
Alarm LED Blink
Timeout
Timeout Delay
Power-On Alarm Suppress
NTP Fault
(XLi w. NTP option)
Clear Alarm Latch
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Status
Locked/Unlocked
Locked/Unlocked
OK/Fault
OK/Fault
OK/Fault
OK/Fault
OK/Fault
OK/Fault
OK/Fault
OK/Fault
OK/Fault
OK/Fault
(Range 0 to 99,999 nS)
n/a
OK/Fault
(Range 0 to 86,400 sec.) 300 sec.
(Range 0 to 86,400 sec.) 300 sec.
OK/Fault
Yes/No
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Factory Setting
(for XLi without option cards)
Always Enabled
Alarm Enabled
Alarm Enabled
Alarm Disabled
Alarm Disabled
Alarm Enabled
Alarm Disabled
Alarm Enabled
Alarm Disabled
Alarm Disabled
Alarm Disabled
Alarm Enabled
Alarm Enabled
0000 nS
Enabled
Alarm Enabled
Alarm Enabled
No
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XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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