Motorola Crib Toy MTM5400 User Manual

INSTALLATION

MTM5400 Mobile Terminal Installation Manual

29

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

Locate a good vehicle ground point. The vehicle frame 
provides the best ground. Optimum terminal performance 
can only be achieved with a very low resistance ground 
connection. Verify that the connections between the 
battery negative terminal, vehicle chassis, and engine 
block have low resistance.

Black Lead

Red Lead

Grommet

Engine Compartment

Firewall