Installation
26
IMPORTANT: Make sure the cables run inside the roll cage of the vehicle.
If the device is installed in an environment where earth ground is present such as a vehicle with metal wheels running on a
metal track, or is powered by the AC/DC adapter in a permanent installation, the ground lug must be connected to the
ground structure.
Wiring Vehicle Power to the VC8300
WARNING: Applying voltage above the input voltage rating or reversing polarity may result in permanent damage to the
VC8300 and void the product warranty.
An extension power cable is used to wire the VC8300 to the truck battery (order cable separately, see
Accessories on page 120). Wire this cable to a filtered, fused (15A max) accessory supply on the vehicle.
Follow the installation instructions supplied with the extension cable.
Additional wiring (minimum 14 gauge), connectors or disconnects used should be rated for at least 300 VDC,
15A.
When connecting the extension power cable:
• If a power extension cable with ignition sense is used, ensure that the ignition sense wires (18AWG wires in
red and black leads) and the power wires (14AWG in red and black leads) are reliably secured away from
each other, or are separated with reliably secured certified insulation. Minimum 2.8 mm distance, or 0.4 mm
distance through insulation is required for the separation.
• The red lead of the 14AWG power cables attach to the vehicles battery positive terminal. The 14AWG black
lead connects to the vehicle’s battery negative terminal. This should be connected to a proper terminal
block and not to the vehicle body. An optional grounding strap wire (sourced separately) may be connected
to the ground lug of the VC8300 terminal connector bay and to the vehicle chassis.
• You may have the option to connect power before or after the key switch. Though the VC8300 is equipped
with a UPS, a proper shut down is recommended using the Power Off procedure. If it is wired after the key
switch, the operator must shut down the VC8300 using the Power Off procedure before turning off the
vehicle. If it is wired before the key switch, then to avoid excessive drain on the vehicle battery, either the
operator should shut it down when the vehicle is to be left off for an extended period, or the ignition cable
shut down wire should be connected and the VC8300 configured to shut down automatically.
• An appropriate fuse type must be used with the power extension cable according to the installation
instructions. For main power cable, use 3AB, 15A, 250V, slow blow fuse. For ignition sense input, use 3AB,
0.3A, 250V, slow blow fuse.
NOTE: The VC8300 supports the ignition sense feature that detects when the ignition switch or key switch is On or Off to
allow automatic computer start up or shut down (with delay as needed).
When wiring the ignition sense wires (18AWG in red and black), the red 18AWG wire is connected to a positive DC voltage
source switched on by the ignition. The black 18AWG wire is connected to ground reference of this switched ignition source.
External Antenna Installation
To install an external antenna:
1. Align the antenna connector with the connector on top of the VC8300.
2. Insert the antenna connector onto the VC8300 connector.
3. Tighten the antenna connector.
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General
Weight and Dimensions