Motorola GM950E Service Manual page 39

1.0 Overview
4
This section provides a detailed theory of operation for the radio and its components.
The main radio is designed to accept one additional option board. This may provide functions such
as secure voice/or a signalling decoder.
The control head is mounted directly on the front of the radio. The control head contains a speaker,
LED indicators, a microphone connector, buttons and dependant of radio type, a display. These
provide the user with interface control over the various features of the radio.
In addition to the power cable and antenna cable, an accessory cable can be attached to a
connector on the rear of the radio. The accessory cable provides the necessary connections for
items such as external speaker, foot operated PTT, ignition sensing, etc.
Theory of Operation
Overview
4-1