22
22
Allegiant Light Bar
Federal Signal
www.fedsig.com
Wiring the Allegiant Light Bar
SHOCK HAZARD: Strobe and HID light systems generate high voltages.
Disconnect power from the system and wait at least 5 minutes before opening
the unit. Do not apply power to the unit while the unit is open. Failure to follow
this warning could result in serious injury or death.
Figure 3 Relay for isolating devices with large filter capacitors
290A7446
+12 Vdc
Control Lead
(12 Vdc Signal Activated)
Relay
Fuse*
Strobe Supply
*Fuse Amperage depends on amperage of devices.
Internal SignalMaster (Factory Default)
Internal operation uses the light bar’s built-in SignalMaster controller to generate
directional warning patterns. With internal operation, an external SignalMaster
controller is not needed. A standard low-current switch box can activate the light
bar’s internal SignalMaster controller. To activate the light bar’s internal SignalMaster
controller, apply 12 Vdc (+BAT) to the SignalMaster control wires. See Table 8.
NOTE: This feature does not apply to the 21-inch light bar.
Table 8 SignalMaster control wires and warning patters (Internal SM control)
Warning Pattern
Control Wires
Description (with 8-head example)
LEFT
Red
Rear LEDs flash from right to left
8
7
6
5
4
3
2
1
CENTER OUT
Green
Rear LEDs flash from center out to both sides
4
3
2
1
1
2
3
4
RIGHT
Green/Black/White
Rear LEDs flash from left to right
1
2
3
4
5
6
7
8
WARN 1
Orange/Green
Outer LEDs alternate
1
2
WARN 2
Orange
Two outer LEDs alternate
1
1
2
2
WARN 3
Blue/Red
Right four LEDs alternate with left four LEDs
1
1
1
1
2
2
2
2
WARN 4
Red/Green
Two outer LEDs flash, then the four LEDs between
the inner/outer LEDs flash
1
1
2
2
2
2
1
1
FAST
White/Red
Operates the selected pattern 50 percent faster
