Installation Guide

First InterComm ™ System Installation Guide
A29799 Page 9
November 2007
4.0 Installation Procedures
4.1 VCA100 Unit
1. Record the VCA100 model number and serial number on the INSTALLATION SIGN
OFF SHEET (see Appendix E).
2. Carefully inspect the area selected for the VCA100 unit to ensure that the area is
free of physical or electrical obstacles that could interfere with proper installation,
maintenance, or operation.
3. Attach the two L-shaped mounting brackets (Figure 6) to the sides of the VCA100
using four #6-32 countersunk machine screws (SUPPLIED). Attach the wide edge of
the bracket to the VCA100; attach the narrow edge to the vehicle.
4. Place the VCA100 in its final location and scribe three bracket holes into the
vehicle on each side of the VCA100 for drilling. Select slotted or single holes as
necessary - the VCA100 must be firmly mounted to the vehicle.
5. Pre-drill six holes into the vehicle to accommodate self-tapping screws. The size
of the hardware used determines the size of the holes.
6. Mount the VCA100 to the vehicle with self-tapping screws.
Bracket-to-vehicle adjustable
mounting holes (7 places)
Bracket-to-VCA100
mounting holes (4 places)
Bracket-to-vehicle adjustable
mounting holes (7 places)
Bracket-to-VCA100
mounting holes (4 places)
Figure 6. Mounting Bracket
4.2 WiFi Antenna
1. Verify the center pin of the WiFi antenna cable is female (reverse polarity SMA).
Carefully inspect the area selected for the WiFi antenna to ensure that the area is
free of physical or electrical obstacles that could interfere with proper installation,
maintenance, or operation.
2. Follow manufacturer’s installation instructions for external mounting of antenna.
3. Run the RF cable from the WiFi antenna to the VCA100. Use cable ties and
mounts to protect the cable. Grommet all through holes to prevent cable chaffing.
4. At the VCA100, loosely coil up excess WiFi RF cable and lay in a stress relief loop
if the cable cannot land with a straight in path to the VCA100 NETWORK SMA
connector.