Users Manual Chapter 5

Thor VM3A Vehicle-Mounted Computer 91
Wiring Diagram for 50-150VDC Power Supply, Screws on Side of Lid
• GND must be connected to the vehicle chassis ground.
• GND is connected to the vehicle chassis ground, which can also be battery
negative.
60-144 VDC Vehicles (50-150 VDC Power Supply, Screws on Top of
Lid)
This option requires DC/DC power supply Honeywell Part no. VX89303PWRSPLY
shown below.
Main Switch
Circular
Power
Connector
on Dock
V
IN-
V
O-
-Vo
+Vo
COM1 or COM2
Connector
on Dock
VO+
V
IN+
GND
User supplied serial
cable for optional
screen blanking
connection,
see below
Existing Circuitry on Vehicle
Forklift Battery
DC/DC
Power
Supply
Fuse - See
Warning
statement below
See
Caution
statement
below
(not connected)
Black
Green
Blue
Red
Red/White (if present)
Black/White (if present)
Quick Mount
Smart Dock
Caution: For battery powered vehicles:
Caution: For internal combustion engine powered vehicles:
Warning: For proper and safe installation, follow the Fuse Requirements 50-
150VDC Power Supply, Screws on Side of Lid.
Caution: These instructions are for use with VM1D Standard Dock and VM3D
Enhanced Dock only.