Aviat Networks ECLIPSE EDGE, User Manual

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260-668080-001 Rev 002 March 2013 11
Eclipse Edge User Manual
settings. If the alarm has cleared, retry the new configuration.
4. If the alarm is permanent, replace the ODU.
IF Card Temperature
Modem / IF temperature out of tolerance. This is a warning alarm.
Probable Cause
The ODU is faulty, either with an overheating problem or with a faulty temperature
sensor.
Environmental temperature excessive. The ambient must not exceed 55
o
C (131
o
F),
which is a shaded temperature limit (no solar gain).
Recommended Actions
1. Check for other ODU related over-temperature alarms: Power Detector
Temperature, and Transceiver RX Temperature. Also check the PA Current alarm.
2. Use the Portal Performance screen to check ODU Temperature and Detected Tx
Power. ODU Temperature should not exceed 90°C, and then only in extreme
ambient and maximum Tx power conditions. If Detected Tx Power is not normal,
this may be as a result of general overheating, or a component failure.
3. If there is correlation between other temperature alarms and/or the ODU
Temperature reading, a general overheating of the ODU is indicated. If this cannot
be associated with very high ambients, a faulty ODU is indicated. The ODU must be
replaced.
4. If there are no other alarms, the ODU Temperature is normal, Detected Tx Power
is normal, and the ambient is not high, then a localized alarm measurement fault is
indicated. The ODU should be replaced.
5. Where an environmental temperature problem is suspected, use the Portal Events
Browser and History screens to see if there is an alarm pattern associated with
ambient temperature and sun position. If confirmed, a sun shield should be
installed for the ODU.
Additional Information
This temperature output is used to maintain correct Modem/IF calibration over
temperature. The Modem/IF is located in the ODU.
Solar gain on the ODU can add 10
o
C or more to the internal ODU temperature,
therefore in ambients in excess of 45
o
C (113
o
F), solar gain can result in
over-temperature situations.
Detected Tx Power should be within 2 dB (typically within 1 dB) of the Tx power
setting in a RAC/Radio Plug-ins screen
when ATPC is disabled . In situations where
ATPC is selected, refer to the commissioning record for guidance on a normal Tx
power indication.
Line Facing Digital Loopback
Line
facing digital loopback is active. This is a warning alarm.
Probable Cause
Digital Loopback has been selected in Portal System Controls.
Recommended Actions