INSTALLATION MTM800 Enhanced Mobile Terminal Installation Manual 29
* For more information refer to section “Ignition Sense Cable Installation”. The Ignition Sense Cable
allows the terminal to be turned on and off by the vehicle ignition switch.
Installation Procedure
Begin the DC power cable installation as follows:
1. Determine a routing plan, keeping in mind where the terminal is to be mounted and make
sure that the cable does not rest on sharp edges.
2. Locate an existing hole with grommet in the vehicle fire wall, or use a 9.5 mm (3/8-inch) bit to
drill an access hole in the fire wall. Install a grommet with a 5 mm (3/16-inch) inside diameter
into the hole to protect the power cable.
3. From inside the vehicle, feed the red and black leads (without the lugs attached) through the
access hole and into the engine compartment. (see Figure 1)
4. Connect the black lead of the DC power cable to the nearest vehicle chassis ground point
(using the provided ring lug if necessary). Shorten the black lead to remove any excess cable.
(see Figure 2).
In cases of blown fuses, replace ONLY with those of
identical value.
NEVER insert ones of different values.
Improper handling with the power cable may cause
shorting to ground. Ensure that during terminal
installation the power cable fuse is removed.
Make sure your power cable is not placed with the
antenna in parallel. Interference can cause radio to hang.
Be very careful not to damage existing wires.
Figure 1 Power Cable Routing into the Engine Compartment
Black Lead
Red Lead
Grommet
Engine Compartment
Firewall
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