Installation Guide

First InterComm ™ System Installation Guide
Page 4 A29799
November 2007
2.2 VCA100 Power Connector
The VCA100 uses three pins of a 6-pin Molex connector as shown in Figure 3.
Figure 3. VCA100 Power Harness Connector – Front View
2.3 WiFi Antenna
The standard WiFi antenna for all VCA100 installations is the Comtelco Model A10245B
(Figure 4), a 2.4 GHz 802.11 roof mounted antenna, with elevated feed to rise above
cab obstructions and light bars.
Height: 14 inches
VSWR: <2.0:1
Mount: Standard TAD/NMO
Gain: 5 dBi
Mechanical: Built-in shock spring
Height: 14 inches
VSWR: <2.0:1
Mount: Standard TAD/NMO
Gain: 5 dBi
Mechanical: Built-in shock spring
Figure 4. Standard Comtelco WiFi Antenna
2.4 Land Mobile Radio Antenna
An LMR antenna must match the frequency of the specific VCA100 model being
installed on the vehicle. Appendix A lists recommended LMR antennas that may be
used with various VCA100 models.
1 2 3
4 5 6
NC
+12
VDC
Sense
NC
+12
VDC
Pwr
NC
Gnd
Front View of
Molex Connecto
r
1 2 3
4 5 6
1 2 3
4 5 6
1 2 3
4 5 6
NC
+12
VDC
Sense
NC
+12
VDC
Pwr
Gnd
Front View of
Molex Connecto
r