Installation Guide

First InterComm ™ System Installation Guide
A29799 Page 11
November 2007
4.5 VCA100 On/Off Switch
1. Carefully inspect the area selected for the VCA100 On/Off Switch to ensure that the
area is free of physical or electrical obstacles that could interfere with proper
installation, maintenance, or operation.
2. Drill or cut an area to hold the lighted toggle switch. Mount and label the switch.
3. Locate a suitable chassis ground as close to the new power switch as possible. If
necessary, scrape and remove paint to reach bare metal. Drill chassis and use
self-tapping screw to create a chassis ground.
4. Connect a suitable length of black 20 AWG wire to the ground lug of the VCA100
power switch using an appropriate terminal. Cut other end to length, terminate with
a ring terminal, and secure the assembly to the chassis ground.
5. Locate the end of the orange 20 AWG sense wire from the VCA100 power
connector and cut it to length to mate with the On/Off switch. Connect the wire to
the power out lug of the VCA100 power switch using an appropriate terminal.
6. Use an appropriate terminal to connect a suitable length of orange 20 AWG wire to
the power in lug of the VCA100 power switch. Connect the other end of the wire to a
1A fuse-protected vehicle power source with appropriate terminal. Use cable ties
and mounts to protect the wire. Grommet through holes to prevent cable chaffing.
7. Reassemble any panels or consoles opened for installation of the switch.
4.6 Fuse Assembly
1. Carefully inspect the area selected for the fuse assembly to ensure that the area is
free of physical or electrical obstacles that could interfere with proper installation,
maintenance, or operation.
2. Drill into the vehicle at the proper location to receive the Fuse Assembly’s cap and
mounting tab. Remove fuse from holder and mount holder using a self-tapping
screw.
3. Locate the end of the red 16 AWG wire from the VCA100 Power harness and cut it
to length to mate with one end of the Fuse Assembly. Connect it to the Fuse
Assembly using a 12AWG environmental splice (SUPPLIED).
4. If the Fuse Assembly lead is too short, use an environmental splice (
SUPPLIED)
connected to a suitable length of red 16AWG wire to extend the lead.
5. Connect the Fuse Assembly’s other wire to the vehicle’s load center or main
+12VDC power source using the appropriate termination.
6. Use cable ties and mounts to protect the wire. Grommet all through holes to prevent
cable chaffing. Install VCA100 Fuse.