Federal Signal Corporation MS100 Installation Instructions Manual

2561489B
REV. B 903
Printed in U.S.A

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INSTALLATION INSTRUCTIONS FOR

MS100 COMPACT SPEAKER

SAFETY MESSAGE TO INSTALLERS OF SIREN SPEAKERS

WARNING

The lives of people depend on your proper installation and
servicing of Federal products. It is important to read and
follow all instructions shipped with the products. In addition,
listed below are some other important safety instructions and
precautions you should follow:

Before Installation

Qualifications

• To properly install an electronic siren: you must have a
good understanding of automotive 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.

Sound Hazards

• Your hearing and the hearing of others, in or close to
your emergency vehicle, could be damaged by loud
sounds. This can occur from short exposures to very loud
sounds, or from longer exposures to moderately loud
sounds. For hearing conservation guidance, refer to
federal, state, or local recommendations. OSHA
Standard 1910.95 offers guidance on “Permissible Noise
Exposure.”

• All effective sirens and horns produce loud sounds (120
dB) that may cause permanent hearing loss. Always
minimize your exposure to siren sound and wear hearing
protection. Do not sound the siren indoors or in enclosed
areas where you and others will be exposed to the sound.

• Federal Signal siren amplifiers and speakers are
designed to work together as a system. Combining a
siren and speaker from different manufacturers may
reduce the warning effectiveness of the siren system and
may damage the components. You should verify or test
your combination to make sure the system works
together properly and meets federal, state and local
standards or guidelines.

During Installation

• DO NOT get metal shavings inside the product. Metal
shavings in the product can cause the system to fail. If
drilling must be done near the unit, place an ESD
approved cover over the unit to prevent metal shavings
from entering the unit. Inspect the unit after mounting
to be sure there are no shavings present in or near the
unit.

• 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 wiring is shorted to vehicle frame, high
current conductors can cause hazardous sparks resulting
in electrical fires or flying molten metal.

• Be sure the siren amplifier and speaker(s) in your
installation have compatible wattage ratings.

• In order for the electronic siren to function properly, the
ground connection must be made to the NEGATIVE
battery terminal.

• Sound output will be severely reduced if any objects are
in front of the speaker. If maximum sound output is
required for your application, you should ensure that the
front of the speaker is clear of any obstructions.

• Install the speaker(s) as far forward on the vehicle as
possible, in a location which provides maximum
signaling effectiveness and minimizes the sound
reaching the vehicle’s occupants. Refer to the National
Institute of Justice guide 500-00 for further information.

• Mounting the speakers behind the grille will reduce the
sound output and warning effectiveness of the siren
system. Before mounting speakers behind the grille,
make sure the vehicle operators are trained and
understand that this type of installation is less effective
for warning others.

• Sound propagation and warning effectiveness will be
severely reduced if the speaker is not facing forward.
Carefully follow the installation instructions and always
install the speaker with the projector facing forward.

• DO NOT install the speaker(s ) or route the speaker
wires where they may interfere with the operation of air
bag sensors.

• Installation of two speakers requires wiring speakers in
phase.

• Never attempt to install aftermarket equipment, which
connects to the vehicle wiring, without reviewing a
vehicle wiring diagram - available from the vehicle
manufacturer. Insure that your installation will not
affect vehicle operation and safety functions or circuits.
Always check vehicle for proper operation after
installation.

• DO NOT install equipment or route wiring or cord in the
deployment path of an air bag.

• Locate the control head so the vehicle, controls, and
microphone can be operated safely.

• When drilling into a vehicle structure, be sure that both
sides of the surface are clear of anything that could be
damaged.

After Installation

• After installation, test the siren system and light system
to ensure that it is operating properly.

• Test all vehicle functions, including horn operation,
vehicle safety functions and vehicle light systems, to
ensure proper operation. Ensure that installation has
not affected vehicle operation or changed any vehicle
safety function or circuit.

• After testing is complete, provide a copy of these
instructions to the instructional staff and all operating
personnel.

• File these instructions in a safe place and refer to them
when maintaining and/or reinstalling the product.

Failure to follow all safety precautions and instructions may

result in property damage, serious injury, or death to you or others.

IMPORTANT

This speaker complied with SAE J1849 EVS3 and
CCR Title 13 Class A requirements when used
with Federal Signal Corporation electronic sirens.

5/16"

LOCKWASHERS (2)

A. UNPACKING.

After unpacking the kit, carefully check all envelopes,
shipping labels, and tags before removing or destroying
them. Ensure that the parts listed in the KIT CONTENTS
LIST are contained in the packing carton.

B. KIT CONTENTS LIST.

Qty. Description Part Number

2 Screw, 5/16-18 x 3/4" 7002A005-12
2 Lockwasher, 5/16" 7074A020
1 Speaker Assembly MS100

C. INSTALLATION.

WARNING

To avoid reduction of sound output and damage to

speaker, ensure that speaker is mounted with

wires protruding from the right side of the speaker

when viewing it from the front.

CAUTION

Before drilling holes in ANY part of a vehicle, be

sure that both sides of the mounting surface are

clear of parts that could be damaged; such as brake

lines, fuel lines, electrical wiring or other vital

parts. Note that the two rear bracket hole locations

MUST be protected during the drilling operation.

a. Select an appropriate mounting location which
provides both adequate support and sufficient clearance for
the speaker assembly. In addition, the mounting location
should provide maximum signaling effectiveness while
minimizing the sound reaching the vehicle’s occupants.

SPEAKER

WIRES

5/16-18 x 3/4"
HEX HEAD CAP
SCREWS (2)

MS100

Figure 1.

290A3680

WARNING

To avoid reduction of sound output, ensure that the
speaker is mounted with the sound opening facing
directly in the direction intended to warn.

NOTE

Because of the variety of vehicles and possible
mounting arrangements, installation details and
mounting bracket fabrication must be determined
by the installer.

b. See figure 1. After speaker mounting is
completed, connect the two leads from the speaker to the
electronic siren’s speaker cable. Refer to the instruction
sheet packed with the electronic siren for additional
details.

WARNING

All effective sirens produce loud sounds which may
cause, in certain situations, permanent hearing
loss. You should take appropriate precautions such
as wearing hearing protection.

c. Test the system for proper operation.

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