Testing The Lightbar - Federal Signal Corporation Spectralux Rear ILS Light Bar Installation Maintenance And Service Manual

• If a selected function does not perform properly or if any of the lamps remain illuminated
when the control is off, disconnect the power connector from the control unit and
contact the nearest service center.
• At the start of your shift, ensure that the entire warning light system and the siren
system are securely attached and operating properly.
• Suction cup mounting is for temporary applications only. The unit should be removed
from the window and stored securely when not in use. Temperature changes and
sunlight can cause suction cups to lose holding power. Periodically check the unit to
ensure that the suction cups have a firm grip on the mounting surface. An improperly
secured light could fall off of the vehicle causing injury and damage.
• The holding power of magnetic mounting systems is dependent upon surface finish,
surface flatness, and thickness of the steel mounting surface. Therefore, to promote
proper magnetic mounting:
• Keep mounting surface and magnets clean, dry, and free of foreign particles that
prevent good surface contact.
• Ensure that mounting surface is flat.
• Do not use a magnet mounting system on vehicles with vinyl tops.
• To prevent sliding of light assembly on mounting surface, avoid quick acceleration
and hard stops.
Failure to follow these precautions may result in property damage, serious injury, or death.
RETAIN AND REFER TO THIS MESSAGE.
Testing the Light Bar
LIGHT HAZARD: To be an effective warning device, an emergency warning
system produces bright light that can be hazardous to your eyesight when
viewed at a close range. Do not stare directly into this lighting product at a
close range, or permanent damage to your eyesight may occur.
See Table 1 on page 8 and the wiring diagrams on pages 17 and 18:
To check the light bar controls:
1. Connect the 16 AWG black lead from the light bar to the ground (–NEG) terminal of the
vehicle battery and the 16 AWG red lead to the positive terminal.
2. Connect the black and black/white wires from the Serial Interface Module to the
ground (–NEG) terminal of the vehicle battery
3. Apply 12 Vdc to a control wire and to the ignition wire from the Serial Interface
Module.
After the installation, check the entire system to make sure the lights are flashing properly
and all light system functions are operating properly.
Installation, Maintenance, and Service Manual
Federal Signal www.fedsig.com
Testing the Light Bar
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