Installation Guide

2-15
Installation Guide 84465 Rev. F
DC Power Connection
Installations using the DC power cable (PN 855024-020) should use the red and black primary
power wires as well as the yellow ignition wire as the ON/OFF switching source. The TU will
turn OFF with the vehicle’s ignition switch when the yellow ignition line is connected, so it is
important to make that connection in the vehicle if desired (see Figure 2-10).
Figure 2-10 10V - 32V DC Power Connection
1. Connect the RED (+) cable to the positive terminal of DC power source.
2. Connect the BLACK (-) cable to the negative terminal of DC power source.
3. Connect the YELLOW wire to the ignition (or similar) via the fuse box or panel
NOTE
Extra care and consideration must be taken when powering any
device from a dual battery 24V DC system. It is important that
24V systems use the correct GND scheme that ensures unit is
connected to the system’s lowest potential (usually chassis
GND). Otherwise damage to the TU and antenna are likely and
could void the warranty. (See Figure 2-11)