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EMR
3
- Truck Installations
EMR4 Truck Installation
C&C Mode Switch
C&C Mode Switch
The C&C corner switch assembly (P/N 845900-018) that fits into one corner of the Display Head’s housing (see
Figure 20). To enter C&C mode, remove the corner bolt from the Display Head’s cover. To exit C&C mode, replace
the bolt. When using the corner switch, remove the C&C jumper.
Installing Optional Keypad Kit - Right or Left Side
Figure 20 shows the installation and wiring of the optional keypad. To attach the keypad housing mounting screws,
you will need to pull/slide up the display assembly away from the Display Head. Insert the keypad wires through
the center hole in the gasket, slide the gasket down against the keypad and align its three holes with the mounting
holes in the keypad. Hold the keypad against the Display Head and screw in the 3 mounting screws, replace the
display assembly and then connect the keypad wiring to the terminal block as shown in Figure 20. The screws are
self-tapping. The user may want to pre-tap the holes using the screw to ease installation.
Installing the Interconnect Box (IB)
The IB is not rated for mounting in outdoor locations. The IB can be mounted only in a
protected enclosure or protected location.
The following information is for general reference and is not intended to replace recommended National Electric
Code (NEC) procedures. It is important for the installer to understand that electrical equipment and wiring located
in Class I, Division 1 and 2 installations shall comply with the latest appropriate articles found in the National
Electric Code (NFPA 70) and other applicable code requirements.
1.
The physical dimensions of the Interconnect Box (IB) are shown in Figure 21. The IB is installed in the truck’s
cab either under the seat, mounted on the wall inside the cab, mounted to the passenger side of the “dog
house” in cab-over trucks, or mounted to a custom-made bracket that can also support the optional printer.
Use four, 3/16” (4 mm) bolts to mount the IB to the mounting surface. In the event of limited access, the front
cover of the IB can be completely removed rather than swung open, by removing four #15 Torx screws. Put
the excess coils of cable under the seat or clamp them to the IB mounting stand.
2.
Figure 22 shows IB Power Side terminal wiring connections. Remove hole plugs and use cord grips for all
cables attaching to this terminal block.
Run the power cable from the truck fuse block or ignition switch to the IB. Clamp the power wire at suitable in-
tervals between the power source and the IB.
Before connecting the truck power wiring, verify the following:
a. Electrical system has a negative ground.
b. Battery terminals and cables are in good condition.
c. Alternator current output is sufficient to supply EMR4 System current requirement of 5 amperes.
Attach the wire from truck ground to the GND terminal of the Power Side terminal block (J8, Pin 2). Also at-
tach the wire from the truck’s Accessory (ACC) circuit to the Input-Pwr terminal of the terminal block (J8-Pin
1).
3.
Refer to Figure 22 for the IB intrinsically safe terminal wiring connections. Remove hole plugs and use cord
grips for Display Head cable entries. The drain wire from the Display Head cable must be connected to the
chassis ground clamp in the Interconnect Box.
NOTICE
