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Wiring
Main Power Wires
Wiring the TRX lightbar into the vehicles electrical system does not require the use of relays. The power
and ground leads are connected directly to the 12Vdc to 24Vdc supply voltage and are always hot.
Red to +Vdc
Black to -Vdc
Control Cable
Activating the Lightbar is done by apVdc to one or more of the lightbar control wires. The control
wires consume only a few milliamps of current and can be used with virtually any on/off switch. There
are five control wires in the Control Cable plus one +Vdc supply feed.
The control wires are color coded and control the functions shown below. Keep in mind that not all
lightbars will be configured in such a way that all control wires are used.
Orange
- Group 1 lamps
Blue
- Group 2 lamps or Second Color lamps
Brown/White - S.O.S. warning pattern
Brown wire
- Running lamps
Green wire
- Dimming of all lamps
Red/White
- +Vdc
Orange Wire –
On single color single beam pattern bars the orange wire will turn on the entire bar. If
the lamps in the lightbar are two beam patterns, half spot and half flood for example, the orange wire
will turn on just the spot lamps.
Blue Wire –
If all the lamps in the lightbar have the same beam pattern the blue wire will have no have
no effect on the lightbar and can be ignored. If the lamps in the lightbar are two different beam
patterns, some spot and some flood for example, the blue wire will turn on just the flood lamps. If you
have a multi-beam pattern lightbar and just want on/off functionality simply wire both the orange and
blue wires to a single switch.
If the lightbar is configured as an amber/white combination bar the orange wire will activate the white
lights and the blue wire will activate the amber lights. In case both the orange and blue wires are
activated at the same time the amber lights will activate and the white lights will shut off.
Brown Wire -
If the lightbar is configured as an amber/white combination bar, and the amber lights are
activated, the Brown wire will force one lamp to remain white to serve as the required front facing
white light.
Brown/White Wire –
Activates the S.O.S. or warning patterns. See below for available flash patterns.
Green Wire –
In all lightbars the green wire activates a low intensity or dim setting.
Red/White Wire –
In all lightbars the red/white wire is a +Vdc feed that can be used to power one or
more switches.