Users Manual Chapter 5

Thor VM3A Vehicle-Mounted Computer 97
3. Provide mechanical support for the cable by securing it to the vehicle structure
at approximately one foot intervals, taking care not to over tighten and pinch
conductors or penetrate outer cable jacket.
4. Connect the watertight connector end of the power cable to the dock power
connector by aligning the connector pins to the power connector; push down
on the watertight connector and twist it to fasten securely.
5. Secure the power cable to the computer using the Strain Relief Cable Clamps.
6. Place Thor VM3A in the Dock
7. If using the Screen Blanking Installation feature, install the screen blanking box
or switch.
8. Power On the Computer.
Thor VX8/Thor VX9 Adapter Cable
An adapter cable is available to attach the Thor VM3A to a vehicle previously
equipped with a VX8/VX9 DC power cable. with a screen blanking box installed. If
screen blanking is not used, the VX8/VX9 power cable can be connected directly to
the dock power connector and an adapter cable is not required. The adapter cable
has a 6-pin connector to match the VX8/VX9 power supply cable on one end and a
6-pin connector to match the VM3A on the other end. The cable also has bare wires
for ground and ignition sense connection plus a D9 cable to connect to a COM port
on the dock to provide a screen blanking signal. This section assumes the VX8/VX9
power cable is properly connected to vehicle power. Refer to the VX8 or VX9 Vehicle
Mounting Reference Guide for details.
Caution: These instructions are for use with VM1D Standard Dock and VM3D
Enhanced Dock only. This cable is not used for the VMXD Enhanced
Dock.
To VX8/VX9
Power Cable
To COM port
on Dock
To Ground and
Ignition Sense
To Power Connector
on Dock