12 Determine Power Source
RX2 User’s Guide E-EQ-RX2OGWW-B
Vehicle 12VDC Direct Power Connection
Caution:
!
For proper and safe installation, the input power cable must be connected to
a fused circuit on the vehicle. This fused circuit requires a 2 Amp maximum
time delay (slow blow) high interrupting rating fuse. 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 positive (+) terminal.
Caution:
!
For installation by trained service personnel only.
Warning:
!
Risk of ignition or explosion. Explosive gas mixture may be vented from
battery. Work only in well ventilated area. Avoid creating arcs and sparks at
battery terminals.
GND
+
3
4
5
6
1 2
-
1. To Terminal Block
or Vehicle Battery
2. To RX2
3. Gray (GND)
4. Brown (DC+)
5. Black (DC-)
6. 12 VDC
Figure 9 Vehicle Power Connection Cable (Fuse Not Shown)
5
4
3
2
1
6
7
8
1. Vehicle Electrical
System
2. 2 Amp Slow
Blow Fuse
3. DC +
4. DC -
5. Vehicle Chassis
6. Brown
7. Black
8. Gray
Figure 10 Connecting the Power Cable to the Vehicle
Note: Correct electrical polarity is required for safe and proper installation. Connecting the
cable to the RX2 with the polarity reversed will cause the power cable’s fuse to be blown.
See the following figure titled “Vehicle Connection Wiring Color Codes” for additional
wire color-coding specifics.
