Symmetricom XLi IEEE 1588 User Manual page 78

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• See the state of the Alarm Latch for each indicator
• 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 with one GPS C/A receiver card. 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 GPS receiver, the GPS
Primary Receiver indicator setting would be Alarm Enabled.
Update 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
Note: The Rubidium Oscillator and NTP option are currently unavailable for the standard XLi IEEE 1588
clock.
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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 Enabled
Alarm Disabled
Alarm Disabled
Alarm Disabled
Alarm Enabled
Alarm Disabled
Alarm Disabled
Alarm Disabled
Alarm Enabled
Alarm Enabled
0000 ns
Blink Enabled
Alarm Enabled
Alarm Disabled
No
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XLi IEEE 1588 Clock
997-01510-03, Rev. C, 12/12/2006
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