Federal Signal Corporation MicroPulse MPS U Series Manual

25500643 Rev. A2 0321
Safety Message to Installers of Siren Speakers
People's lives depend on your proper installation and servicing of Federal Signal products. It is important
to read and follow all instructions shipped with this product. Listed below are some other important
safety instructions and precautions you should follow.
• To properly install or service this equipment, you must have a good understanding of automotive
mechanical and electrical procedures and systems, along with proficiency in the installation and
service of safety warning equipment. Always refer to the vehicle's service manuals when performing
equipment installations on a vehicle.
• To be an effective warning device, this product 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.
• Do not install the light system in an area that would block, impair, or blind the driver's vision. Ensure
that the light system is mounted in a position that is outside the driver's field of vision so the driver
can safely operate the vehicle.
• A light system is a high current system. For the system to function properly, a separate negative (–)
connection and positive (+) connection must be made. All negative connections should be connected
to the negative battery terminal, and a suitable fuse should be installed on the positive battery
terminal connection as close to the battery as possible. Ensure that all wires and fuses are rated
correctly to handle the device and system amperage requirements.
• Never attempt to install aftermarket equipment that connects to the vehicle wiring without reviewing
a vehicle wiring diagram available from the vehicle manufacturer. Ensure that your installation will not
affect vehicle operation or mandated safety functions or circuits. Always check the vehicle for proper
operation after installation.
• The lighting system components, especially the outer housing, get hot during operation. Disconnect
power to the system and allow the system to cool down before handling any components of the
system.
• Do not mount a radio antenna within 18 inches (45.7 cm) of the lighting system. Placing the antenna
too close to the lighting system could cause the lighting system to malfunction or be damaged by
strong radio fields. Mounting the antenna too close to the lighting system may also cause the radio
noise emitted from the lighting system to interfere with the reception of the radio transmitter and
reduce radio reception.
• Do not attempt to wash any unsealed electrical device while it is connected to its power source.
• DO NOT connect this system to the vehicle battery until ALL other electrical connections are made,
mounting of all components is complete, and you have verified that no shorts exist. If the wiring is
shorted to the vehicle body or frame, high current conductors can cause hazardous sparks, resulting
in electrical fires or flying molten metal.
• DO NOT install equipment or route wiring (or the plug-in cord) in the deployment path of an airbag.
MicroPulse MPSxxU Manual
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