Installation Manual

Table Of Contents
14221-1850-4000, Rev. A
69
9.3 CONTROL HEAD INSTALLATION
The remote-mount XL Mobile radio must be connected to a Control Head to provide the operator-to-radio
interface. A Control Head is interfaced to the radio via an Ethernet cable. The Control Head is separately
fused and powered by an individual DC power cable.
Figure 9-9: XL CH Rear Panel
9.3.1 General Information on the Control Head
The Control Head’s mounting bracket allows pitch-axis (tilt) positioning for best viewing angle. Pitch
adjustments are accomplished by loosening socket-head cap screws on each side of the bracket, changing
the pitch/tilt of the head as needed, and then retightening the socket-head cap screws.
9.3.2 Multiple Control Head Radio Installations
A multiple control head installation could be required in a vehicle such as a fire truck or any large vehicle
where more than one operator position must support radio use. For example, a ladder fire truck could have
a front-mount XL Mobile radio mounted under the truck’s dash panel and a remote-mount Control Head
mounted at the ladder operator’s position. Each Control Head in a multi-head installation is equipped with
an external speaker, a microphone, and optionally-connected equipment. Multi-control head installations
provide other benefits such as intercom functionality.
For a multi-control head radio installation, mechanical installation and DC power connections for an
additional control head are accomplished in the same manner as for a single-head remote-mount radio
installation. See Sections 9.3.3 and 9.3.4 respectively.