21
Over Temperature Alarm
When temperature of the PA module exceeds the normal range, the Alarm Indicator will
glow red and the LCD will display the prompt below:
Then the repeater will disallow transmission, and you will need to:
1. Check if the surface temperature of PA heatsink exceeds 80
℃
. If yes, implement the
following steps 2 and 3 to locate the failure.
Caution: The PA heatsink can become extremely hot at this moment, so DO NOT
touch the repeater. Use a digital thermometer with thermocouple to measure temperature.
2. Check if ambient temperature and equipment ventilation can satisfy the foregoing site
installation requirements. If not, please improve environmental conditions at the site
as soon as possible, by mounting air conditioning equipment or improving equipment
ventilation.
3. Check if connection between the transmitter and RF or antenna cables is loose or lost.
If yes, please secure the connection or replace the cables. Poor connection between
them could result in very high TX power and thus high temperature of PA heatsink.
4. If you are unable to verify the above conditions, please contact your local dealer for
technical support.
When temperature of the repeater drops into the normal operating range, the LCD prompt
will disappear, and the Alarm Indicator will go out.
Fan Failure Alarm
When the fan fails to work, the Alarm Indicator will glow red and the LCD will display the
