Honeywell Thor VM2 User Manual page 104

must be connected to the vehicle chassis ground.
Caution: For internal combustion engine powered vehicles:
is connected to the vehicle chassis ground, which can also be battery negative.
Fuse Requirements
Warning: For proper and safe installation, the input power cable must be
•
Note: For North America, a UL Listed fuse is to be used.
104 Thor VM2 with with Microsoft Windows 7 or Windows Embedded Standard User Guide
connected to a fused circuit on the vehicle. If the supply
connection is made directly to the battery, the fuse should be
installed in the positive lead within 5 inches of the battery's
positive (+) terminal. Use VM3055FUSE (or equivalent) to
install the fuse as shown below:
For all voltages, use the 3A fuse from the kit or a slow blow fuse that has a DC voltage
rating greater than the vehicle input voltage.