Specifications

4000326 Rev A Optical Switches 3-5
Monitor Alarm Parameters,
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Monitoring Alarm Parameters
The following table describes each alarm parameter.
Parameter Meaning Values
Alarm
Indicator
OK Off
Self Test Software self test
FAILED Illuminates
HIGH Blinks
PoptA
Received optical power for
input A
LOW Illuminates
HIGH Blinks
PoptB
Received optical power for
input B
LOW Illuminates
Auto Off
Manual Auto/manual mode
Manual Illuminates
• ExCtl1
• ExCtl2
External control inputs
#1 and #2
External control input
#1 is active.
Note: External control
input #2 is not
currently used.
Blinks
Primary Off
BackUp Primary/backup mode
Backup Blinks
HIGH: 5.50 V Illuminates
D5Vdc +5 V digital DC power level
LOW: Below 4.50 V Illuminates
HIGH: Above 5.50 V Illuminates
A5Vdc +5 V analog power level
LOW: Below 4.50 V Illuminates
High: Above -4.50 V Illuminates
-5Vdc -5 V power level
LOW: Below -5.50 V Illuminates
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