User's Manual

47
Document Number: 0100SM1401 Issue: 05-15
Physical Dimensions
Drawings not to scale.
Part F – Quick Reference Guide
Mounting Instructions
The radio should be mounted in a clean and dry location, protected from water, excessive dust, corrosive fumes, extremes of
temperature and direct sunlight. In high power or high temperature applications, allow sufficient passive or active ventilation.
To avoid moisture ingress it is suggested to mount the radio with the connectors facing downwards.
When mounting the equipment, consideration should be given to the environmental aspects of the site. The cabinet should
be positioned so that it is shaded from potential high temperature of the afternoon sun, or icy cold wind. Although the radios
are designed for harsh temperature extremes, they will give a longer service life if operated in a more stable temperature
environment.
In an industrial environment, the radio modems should be isolated from excessive vibration, which can destroy electronic
components, joints, and crystals. The cabinet should provide full protection from moisture, dust, corrosive atmospheres,
and residue from ants and small vermin (which can be corrosive or conductive). The radio modem will radiate heat from the
in-built heat sink, and the higher the transmitter duty cycle, the more heat will be radiated from the heat sink. Ensure there is
sufficient ventilation in the form of passive or forced air circulation to help ensure that the radio is able to maintain quoted
temperature limits.
The QR450 is designed with four mounting holes to allow a flat mount of the radio. Each QR450 comes standard with four
16mm x 40mm self drilling screws. The heads of these screws are low profile wafer heads with a no. 2 Phillips recess.