52 | Preparation
Aprisa SRx User Manual 1.3.0
Site Requirements
Power Supply
Ensure a suitable power supply is available for powering the radio.
The nominal input voltage for a radio is +13.8 VDC (negative earth) with an input voltage range of +10 to
+30 VDC. The maximum power input is 35 W.
WARNING:
Before connecting power to the radio, ensure that the radio is grounded via the
negative terminal of the DC power connection.
Equipment Cooling
If the Aprisa SR is operated in an environment where the ambient temperature exceeds 50°C, the Aprisa
SR convection air flow over the heat sinks must be considered.
The environmental operating conditions are as follows:
Operating temperature
-40 to +70˚ C
Storage temperature
-40 to +80˚ C
Humidity
Maximum 95% non-condensing
WARNING:
If the Aprisa SR is operated in an environment where the ambient temperature
exceeds 50°C, the Aprisa SR must be installed within a restricted access location to
prevent human contact with the enclosure heatsink.
