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24
Valor
®
Light Bar
Federal Signal
www.fedsig.com
Wiring the Valor in the Vehicle
Wiring the Serial Interface Module
FUSE ELECTRICAL SOURCES: Always fuse current/voltage sources with a
fuse connected near the power source. Ensure that the fuse is properly rated
to protect the electrical load, the wiring, and the connectors used in the circuit.
Failure to follow this notice could result in vehicle or equipment damage.
This section is an overview of default settings that are activated when connecting
LED and Mode control wires to 12 Vdc (+BAT). The basic light functions of the light bar
must be controlled by an installer-supplied control head. Programming is covered in
“Selecting a Flash Pattern for Modes 3, 2, 1, and Intersection” on page 17.
For a description of the control wires from the Serial Interface Module, see Table 5 on
page 16. For typical installations with common controllers and switch boxes, see the
wiring schematics starting on page 28.
To wire the controller’s functions to the Serial Interface Module’s 24-pin cable harness,
see Table 7 on page 27. If additional wire is necessary for the harness (except
ground), 22 AWG wire is adequate. The ground wires must be extended with 16 AWG or
thicker wire
Figure 4 Wiring block diagram
290A6563
SERIAL INTERFACE
MODULE
PART #8583446
CAT5 CABLE
−
+
BLACK 10 AWG
RED 10 AWG
MAXI FUSE
40 A
BATTERY
BLACK
WHITE
BLACK / WHITE
16 AWG
IGNITION
FUSE
1 A
Priority Modes 1, 2, and 3
To activate a priority mode, apply 12 Vdc (+BAT) to a mode control wire. Mode 3
(black/red) overrides Mode 2 (blue/white), and Mode 2 overrides Mode 1 (blue). You
can program one of the flash patterns in the light bar to each Mode input.
Steady Burn
When the light bar is equipped with one or more Steady Burn LED modules, applying
12 Vdc (+BAT) to the control wire (red/white) for Steady Burn turns on the LEDs when
any Mode input is selected.