Installation Guide

First InterComm ™ System VCA100 Installation Guide
Page 16 A29799
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VCA100 On/Off Switch. Use cable ties and mounts to protect the wire. Grommet all
through holes to prevent cable chaffing.
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. If the switch is illuminated, 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 and star washer to create a chassis
ground for the switch.
4. I f the switch is illuminated, connect a suitable length of black 20 AWG wire to the
ground lug of the VCA100 On/Off switch using an appropriate terminal. Cut other
end to length, terminate with a ring terminal, and secure the assembly to the chassis
ground created in step 3 above.
5. Locate the end of the orange 20 AWG switch extension wire from the VCA100
power harness and cut it to length to mate with the VCA100 On/Off switch. Connect
the wire to the power out lug of the VCA100 On/Off 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 On/Off 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 extension 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.