Specifications

4000326 Rev A Receivers 2-19
Monitor Alarm Parameters
Introduction
From the ALARMS screen on the receiver, you can determine whether there is a
receiver alarm condition and, if there is an alarm condition, the cause of the alarm.
If an alarm condition:
• Is present, the cause of the condition displays on the screen. Items that are not in
the alarm state are passed over and are not displayed.
• Is not present, the message No Alarms displays on the screen.
Alarm Information
The following receiver alarm information is available:
• Software self test
• Received optical power
• Hybrid current draw
• Module temperature
• +5 V DC digital power level
• +5 V DC analog power level
• -5 V DC analog power level
• +15 V DC control card power level
• +24 V analog DC power level
• Backplane power supply status (primary and secondary)
ALARMS Screen Description
The ALARMS screens let you quickly determine the cause of an alarm. When an
ALARMS screen is active, press the Select
key on the receiver to rotate through
the active alarms.
Each screen also displays the current parameter. If no alarm is active for a particular
parameter, the module does not display that screen.
ALARMS Screen Value Description
OK
Component is operational or passes test (for parameters
without an operating range).
HIGH The measured level is above the operating range.
LOW The measured level is below the operating range.
FAIL
Component, test, or signal failure (for parameters without an
operating range).
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