Symmetricom XLi User Manual

94 XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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1
F73 – Alarm Control / Status
Use function F73 to do the following:
• 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 Status Factory Setting
(for XLi without option cards)
Clock Status Locked/Unlocked Always Enabled
PLL Locked Locked/Unlocked Alarm Enabled
Low Phase Noise (LPN) PLL Locked Locked/Unlocked Alarm Enabled
GPS Primary Receiver OK/Fault Alarm Disabled
GPS Secondary Receiver OK/Fault Alarm Disabled
IRIG Fault OK/Fault Alarm Enabled
Aux Ref Fault OK/Fault Alarm Disabled
Primary Power OK/Fault Alarm Enabled
Secondary Power OK/Fault Alarm Disabled
Rubidium oscillator
(XLi w. optional Rubidium oscillator)
OK/Fault Alarm Disabled
DAC OK/Fault Alarm Disabled
First Time Lock OK/Fault Alarm Enabled
Time Error OK/Fault Alarm Enabled
Time Threshold (Range 0 to 99,999 nS) 0000 nS
Alarm LED Blink n/a Enabled
Timeout OK/Fault Alarm Enabled
Timeout Delay (Range 0 to 86,400 sec.) 300 sec.
Power-On Alarm Suppress (Range 0 to 86,400 sec.) 300 sec.
NTP Fault
(XLi w. NTP option)
OK/Fault Alarm Enabled
Clear Alarm Latch Yes/No No
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Symmetricom XLi Specifications

General

Brand	Symmetricom
Model	XLi
Category	Measuring Instruments
Language	English