User's Guide

Installation/User Guide
11
Internal
6. Power Wiring and Cable Management
The Basic Power Cable is used on Non-J1708/J1939 and non-OBDII installs. It is also used
on J1708/J1939 installs with switched power issues (as indicated by flashing “Status”
LED with engine running). See General Guidelines and the following requirements.
1) All power leads must be connected to the vehicles protected circuitry (for example,
the fuse panel and circuit breaker panel protected circuits). Never electrically
connect Zonar equipment to unprotected circuits (for example, directly to the
battery).
2) All power leads (red and white) must be protected with a 3 - 5 Amp fuse and inline
fuse holder (included) for optimal system protection.
3) Electrical fuses should be installed as close as possible to the source of power.
4) For vehicles equipped with “noise kill” switches (late model school buses) – Do not
wire any Zonar equipment to the “noise kill” circuitry.
6.1. Power Cable Wires
 Red – Constant DC (+8 VDC to +32 VDC), dependent on system type
 Black – Battery Ground
 Green - Chassis ground
 White - Switched Power o Engine running (+8 VDC to +32 VDC) o Engine not running (0
VDC) o Engine not running (key position ACC or Accessory Mode) (0 VDC)
The white wire must be connected to a power source that is active only when the
engine is running or the system will not track idle time properly.
Note: Please contact the vehicle manufacturer for any specific electrical questions.