Non-Standard Radio Installations; Negative Earth Supply - Tait TM9300 DMR Installation Manual

1.9

Non-standard Radio Installations

1.10

Negative Earth Supply

10 Safety and Regulatory Warnings
The installation U-cradle described in this guide has been designed so that
there is enough airflow around the radio to provide cooling.
If a non-standard installation method is used, care must be taken that
sufficient heat can be dissipated from the heatsink fins and the ridged
bottom surface of the radio.
For this to be achieved, there must be a gap of more than 3/8 inch (10 mm)
between the bottom surface of the radio chassis and the mounting surface.
This is illustrated in the following diagram:
The radios are designed to operate only in a negative earth system.
3/8 inch (10 mm)
mounting surface
TM9300/TM9400 Installation Guide
© Tait Limited December 2015