Federal Signal Corporation PA300 Series 690009 Installation And Operating Instructions Manual

Model PA300 Series

ELECTRONIC SIREN

MODELS 690009, 690010

Price $4.00

INSTALLATION AND OPERATING INSTRUCTIONS

LIMITED WARRANTY

The Signal Division, Federal Signal Corporation (Federal), warrants each
new product to be free from defects in material and workmanship, under
normal use and service, for a period of two years on parts replacement and
one year on labor from the date of delivery to the first user-purchaser.

During this warranty period, the obligation of Federal is limited to repairing
or replacing, as Federal may elect, any part or parts of such product which
after examination by Federal discloses to be defective in material and/or
workmanship.

Federal will provide warranty for any unit which is delivered, transported
prepaid, to the Federal factory or designated authorized warranty service
center for examination and such examination reveals a defect in material
and/or workmanship.

This warranty does not cover travel expenses, the cost of specialized
equipment for gaining access to the product, or labor charges for removal
and re-installation of the product. Lamps, flash tubes, or batteries are not
covered under warranty.

This warranty does not extend to any unit which has been subjected to abuse,
misuse, improper installation or which has been inadequately maintained,
nor to units which have problems relating to service or modification at any
facility other than the Federal factory or authorized warranty service
centers.

THERE ARE NO OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. IN NO EVENT SHALL FEDERAL BE LIABLE FOR ANY
LOSS OF PROFITS OR ANY INDIRECT OR CONSEQUENTIAL
DAMAGES ARISING OUT OF ANY SUCH DEFECT IN MATERIAL OR
WORKMANSHIP.

SECTION I

GENERAL DESCRIPTION

The Model PA300 Series can drive one or two
11-ohm impedance, high power (100W) or low power
(58W) speakers. When two speakers are used, they
must be connected in parallel and in phase.

The Tap II feature allows the driver to change
the siren sound from wail to yelp (or vice-versa) via
the vehicle’s horn ring. Tap II provides especially
effective traffic clearing capability. In addition to Tap
II, additional alternate sounds can be activated in
two other selector switch positions by depressing and
holding the horn ring for as long as the alternate
sound is desired. The charts in Section IV of this
manual illustrate the operation of these features
more fully.

290A4507-01

Figure 1-1. Model PA300 Series Electronic Siren.

The Federal Models 690009 and 690010 (PA300
Series) (figure 1-1) are precision built, efficient and
economical, full-featured electronic sirens of ad­vanced design. They provide wail, yelp and hi-lo siren
tones, as well as the Tap II feature, public address
(PA), radio rebroadcast and an air horn sound.

The siren should be installed in negative ground
vehicles. It is protected against failure modes (includ­ing reversed polarity) by a fuse that is replaceable
without tools. No components protrude from the
bottom of the siren to interfere with mounting
arrangements.

A noise-cancelling microphone is wired-in to
prevent loss or theft. It provides high quality voice
reproduction without feedback “squeal”. The micro­phone push-to-talk switch overrides any siren signal
for instant PA use. PA and radio volume are adjust­able by means of a front panel GAIN control. Radio
inter-connect wires are built-in. No additional cables
are required.

Other special features of the Model PA300

Series include:

• High degree of reliability is achieved
through the use of integrated circuits
and silicon output transistors.

• Control panel is illuminated with
LED's.

• Newly designed printed circuit board
provides improved performance and
durability under a wide range of
environmental conditions.

PA300 Series Models:

• 690010 12V, 200W, HI-LO with
microphone

• 690009 24V, 200W, HI-LO with
microphone

-1-

SECTION II

SPECIFICATIONS

Input Voltage ............................................................... 11VDC to 15VDC. (690010)

24VDC to 28VDC. (690009)

Polarity ......................................................................... Negative ground only.

Standby Current (MANUAL)...................................... 120ma (typical). (690010)

120ma (typical). (690009)

Operating Temperature Range ................................... -30°C to +65°C.

Operating Current (Wail mode) .................................. 10 amperes, max. (@ 13.6VDC) (690010)

5 amperes, max. (@25VDC) (690009)
(11 ohm load, @ high power)

Frequency Range (typical) .......................................... 725 to 1800Hz.

Cycle Rate (typical)...................................................... Wail- 15 cycles/min.

Yelp- 220 cycles/min.
Hi-Lo- 70 cycles/min.

Voltage Output (approx.)............................................. 64V peak-to-peak. (11 ohm load)

Dimensions (HWD) ...................................................... 2-1/2" (6.35cm) x 6-1/2" (16.51cm) x 8-1/2" (21.59cm).

Net Weight (incl. microphone) .................................... 4-1/2 lbs. (2.04kg).

Shipping Weight .......................................................... 6-1/2 lbs. (2.94kg).

NOTE

The following parameters were obtained with the
radio input potentiometer and GAIN control set
at maximum.

Audio Frequency Range .............................................. 300 to 10,000Hz.

Harmonic Audio Distortion (300-3,000Hz)................. 10% max. all power levels from 1/2 to 50 watts (frequency

response ±3dB).

Input Impedance (Radio)............................................. 2000 ohms.

Input voltage required to obtain 20VRMS across

speaker load (Radio) .................................................. 0.30VRMS.

-2-

SECTION III

INSTALLATION

SAFETY MESSAGE TO INSTALLERS

OF

ELECTRONIC SIRENS

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.

-3-

CAUTION

290A4507-02

NOTE:

ONLY ONE BRACKET IS SUPPLIED

1/4-20 x 1/2"
HEX HD. CAP
SCREW

1/4-20 x 3/4" HEX

HD CAP SCREW

1/4" SPLIT
LOCKWASHER

1/4-20 x 1/2" HEX

HD. CAP SCREW

MOUNTING

BRACKET

1/4" SPLIT

LOCKWASHER

1/4" SPLIT

LOCKWASHER

MICROPHONE

CABLE

CAUTION

1/4-20 x 1/2"
HEX HD. CAP
SCREW WITH

LOCKWASHER

MUST BE USED

AS SHOWN

LONGER SCREW

WILL CAUSE

CIRCUITRY

DAMAGE.

MOUNTING UNDER DASH

1/4-20 HEX NUT

Damage to unit will occur if not properly
fused. Ensure that an in-line fuse (20A) and
fuseholder are installed in the red power
cable lead for the 690010. A chassis mounted
fuseholder is mounted on the 690009—ensure
that a 10-ampere fuse is installed.

3-1. UNPACKING.

After unpacking the Model PA300 Series,
examine it for damage that may have occurred in
transit. If the equipment has been damaged, file a
claim immediately with the carrier stating the extent
of damage. Carefully check all envelopes shipping
labels and tags before removing or destroying them.

Before proceeding with installation, ensure that
the following parts have been included in the carton.

KIT CONTENTS LIST

Qty. Description Part No.

1 Cable Assembly (690010) 1461360
1 Cable Assembly (690009) 1461388
2 Lockwasher, 1/4 7074A015
2 Screw, 1/4-20 x 1/2 7002A008-08
1 Mtg. Bracket 85361059
1 Label, Warning 1612339

3-2. MOUNTING BRACKET.

When installing equipment inside air
bag equipped vehicles, the installer
MUST ensure that the equipment is
installed ONLY in areas recommended
by the vehicle manufacturer.

Failure to observe this warning will
reduce the effectiveness of the air bag,
damage the air bag, or potentially dam­age or dislodge the equipment, causing
serious injury or death to you or others.

The electronic siren comes equipped with a
swinging bracket which enables it to be mounted in
variety of positions. Positioning the bracket above the
unit allows mounting to the underside of the dash.
Positioning the bracket below the unit will permit
mounting on any horizontal surface.

The unit should be mounted in a position that is
both comfortable and convenient to the operator.
Keep visibility and accessibility of controls in mind.

WARNING

Figure 3-1. Installation of PA300 Under Dash.

To install the unit under the dash, determine the
mounting location and proceed as follows (see figure
3-1).

CAUTION

The unit must be installed in an adequately
ventilated area. Never install near heater
ducts.

A. Use the mounting bracket as a template
and scribe two drill positioning marks at the selected
mounting location under the dash.

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, electrical wiring or
other vital parts.

B. Drill two 1/4-inch diameter holes at the
position marks.

C. Secure the mounting bracket to the dash
with user-supplied 1/4-20 x 3/4 hex head screws, 1/4
split lockwashers and 1/4-20 hex nuts as shown in
figure 3-1.

D. Secure the electronic siren to the mounting
bracket with 1/4-20 x 1/2 hex head screws and 1/4
split lockwashers as shown in figure 3-1.

-4-

CAUTION

3

To avoid damage to the unit, the 1/4-20 x 1/2
hex head cap screws and the 1/4 split
lockwashers must be used as shown in figure
3-1.

7

BLU (SPKR, COM)

8

BRN (SPKR, HI)

9

ORG (SPKR, LO)

5

WHT (HORN)

4

WHT/YEL (HORN RING)

E. Tilt the unit to the desired position.

Tighten the 1/4-20 x 1/2 hex head screws.

3-3. POWER CABLE INSTALLATION.

CAUTION

Wiring changes have been made which
utilizes a new type of power cable. If this unit
is used to replace an older PA300, use the
optional cable adaptor (761300) to connect the
originally installed power cable to the new
siren.

A. Speaker.

The unit is designed to operate with one 11­ohm impedance speaker or two 11-ohm impedance,
low power (58W) or high power (100W), speakers
connected in parallel and inphase. On FEDERAL
speakers, this can be accomplished by connecting the
two speaker leads marked "1" to the SPEAKER
COMMON control cable lead and the two speaker
leads marked "2" to the SPEAKER HIGH POWER or
SPEAKER LOW POWER control cable leads. See
figure 3-3.

CAUTION

Damage to the unit will occur if speaker wires
are improperly connected. NEVER CON­NECT the brown SPEAKER HIGH POWER
(100W) wire and orange SPEAKER LOW
POWER (58W) wire together to the
speaker(s).

Using 18 gauge wire, connect the speaker
leads (58W speakers to SPEAKER LOW POWER and

678910

ZIP CORD

1

*

*

FUSEHOLDER ON 690010 ONLY

2

BRN (NON-RIBBED) (RADIO)

12345

BRN (RIBBED) (RADIO)

RED (POWER +)

BLK (GROUND -)

290A4507-04C

Figure 3-3. Control Cable Wiring Diagram.

100W speakers to SPEAKER HIGH POWER) as
shown in the Control Cable Wiring Diagram, figure
3-3.

B. Radio.

To allow incoming radio messages to be
rebroadcast over the outside speakers, connect the
two brown zip cord leads (pins 1 and 2) across the
two-way radio’s speaker.

C. Horn Ring.

In order to utilize the Tap II and Press-and­Hold features of the siren, the following procedure
must be performed.

1. Locate the wire that connects the
vehicle horn ring switch to the horn or horn relay.
Cut this wire.

2. See figure 3-4. Splice the white/yellow
control cable wire (pin 4) to the horn ring side of the
wire that was cut in step 1. Insulate the splice with
user-supplied wire nuts.

CAUTION

Figure 3-2. Rear View of PA300.

290A4507-0

The horn ring transfer circuit of the siren is
capable of switching a maximum of 2-am­peres. Some vehicles do not have a horn relay
and, consequently, will draw more than 2­amperes when the vehicle horn is activated.
Consult your vehicle service manual or a
qualified mechanic to determine the current
required to activate the horn. If it is less
than 2-amperes, perform the procedure in
step 3. If it is greater than 2-amperes,
perform steps 4 through 10.

-5-

VEHICLE HORNS STEERING COLUMN

RELAY (USER SUPPLIED)

SW

TO BATTERY

CUT WIRE

WHT

CONTROL CABLE ASSEMBLY

Figure 3-4. Horn Ring Connections.

TO HORN, OR HORN RELAY

WHT/YEL TO HORN SWITCH

290A4507-05

3. Splice the white control cable wire (pin

5) to the horn side of the cut wire. Insulate the splice
with a user-supplied wire nut.

4. Obtain a SPST relay of sufficient
contact current capacity to activate the vehicle horn.
Refer to figure 3-4 while performing the following
steps.

Power for the siren can be obtained from
the vehicle’s power distribution center or directly
from the vehicle battery. If power is going to be
obtained directly from the vehicle battery, drill a hole
in the vehicle firewall for the power lead to enter the
engine compartment. Place a grommet or similar
device in the hole to protect the wire against damage
from rough edges.

CAUTION

Before drilling holes in ANY part of the
vehicle, ensure that both sides of the surface
are clear of parts that could be damaged; such
as brake lines, fuel lines, electrical wiring or
other vital parts.

If your vehicle has a negative ground
electrical system, perform the procedure as follows:

5. Mount the relay in a suitable location.

6. Connect the horn side of the wire cut

in step 1 to the relay contact terminal.

7. Determine the “sense” of the vehicle’s
horn ring activation circuit, i.e., does the horn circuit
require a switched positive voltage or switched
ground for activation.

8. Connect the relay wiper terminal to
the positive or negative potential determined in step

7.

9. Connect the white control cable wire to
one end of the relay coil.

10. Connect the other end of the relay coil
to the opposite potential of that connected to the
wiper in step 8.

D. Connection to Power Source.

CAUTION

NOTE

This unit is NOT designed to operate with
positive ground.

1. Route the red power (+) and the black
power (-) control cable leads, through the previously
drilled hole, into the engine compartment. Route the
wires through existing clamps and holders toward
the battery.

2. To protect the red wire when con­nected to the battery terminal, use an in-line
fuseholder and appropriate (10-ampere for 690009
and 20-ampere for 690010) user-supplied fuse. The
fuseholder should be installed as close as practical to
the battery. If necessary, additional #14 gauge or
heavier wire can be spliced to the red lead.

WARNING

If wires are shorted to the vehicle frame
or each other, high current conductors
can cause hazardous sparks resulting in
electrical fires and molten metal.

Damage to unit will occur if not properly
fused. Ensure that an in-line fuse (20A) and
fuseholder are installed in the red power
cable lead for the 690010. A chassis mounted
fuseholder is mounted on the 690009—ensure
that a 10-ampere fuse is installed.

The PA300 Series can operate only from a
negative ground vehicle electrical system. Therefore,
before making any electrical connections, determine
the polarity of the vehicle electrical system ground.

Verify that no short circuits exist before
connecting to the Positive (+) battery
terminal.

DO NOT connect this system to the
vehicle battery until ALL other electri­cal connections are made and mounting
of all components is complete.

Failure to observe this WARNING will
result in fire, burns and blindness.

-6-

1. Connect the in-line fuseholder lead to

6

7

R39

290A4507-08

the positive (+) battery terminal.

2. Connect the black wire to the negative

terminal of the battery.

3-4. AIR HORN PRESS-AND-HOLD

MODIFICATION.

The unit comes from the factory set so that the
peak-and-hold sound will be heard when the Selector
switch is set to MANUAL and the vehicle horn ring is
activated. To change the sound to air horn, merely
move jumpers J8 and J9 from the “PEAK” position on
the P.C. board to the “AIR” position (see figure 3-5).

3-5. RELATIVE PA LOUDNESS ADJUSTMENT.

After the electronic siren is completely installed
in the vehicle, set the Selector switch to MANUAL.
Depress the microphone push-to-talk switch, speak in
a normal voice, and adjust the GAIN control for the
desired sound level outside the vehicle. Turn-on the
vehicle’s two-way radio and adjust the volume to a
comfortable listening level inside the vehicle. Then
set the Selector switch to RADIO. Stand outside of
the vehicle and note the radio rebroadcast loudness.
If the sound volume is too loud or too soft, using a
small flat blade screwdriver, adjust R39 from the
back of the siren (see figure 3-6) to the desired sound
level.

After the adjustment is completed, the loudness
of the radio rebroadcast and public address may be
varied with the front panel GAIN control.

R23

D26

D27

IC3

C7

IC5

+

R15

R20

IC6

R16

R26

IC10

C20

J9

J8

C48

C8

IC1

++

C49

AIR
HORN

PEAK

AIR
HORN

PEAK

+

++

C9

IC7

R21

C29

R51

Factory Configuration

R23

D26

D27

IC3

C7

IC5

+

R15

R20

IC6

R16

R26

IC10

C20

J9

J8

C48

C8

IC1

++

C49

AIR
HORN

PEAK

AIR
HORN

PEAK

+

++

C9

IC7

R21

C29

R51

Air Horn Configuration

Figure 3-5. Press and Hold Modification.

R22

D21

R11

R22

D21

R11

D25

D25

R31

R31

C46

C46

AIR
HORN

J9

PEAK

AIR
HORN

J8

PEAK

290A4507-0

AIR
HORN

J9

PEAK

AIR
HORN

J8

PEAK

290A4507-0

3-6. TESTING AFTER INSTALLATION.

WARNING

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.

After installation; test the electronic siren,
including horn operation, to ensure that it is operat­ing properly.

After testing is complete, provide a copy of this
manual to all operating personnel.

Figure 3-6. Relative PA Loudness Adjustment.

-7-

SECTION IV

OPERATION

SAFETY MESSAGE TO OPERATORS OF

FEDERAL SIGNAL ELECTRONIC SIRENS

AND LIGHT/SOUND SYSTEMS

WARNING

The lives of people depend on your safe
operation 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:

Qualifications

• To properly use an electronic siren and

speaker(s): you must have a good understanding

of general vehicle operation, a high proficiency

in the use of safety warning equipment, and

thorough knowledge of state and federal

UNIFORM TRAFFIC CODES.

Sound Hazards

• Your hearing and the hearing of others, in or

close to your emergency vehicle, could be dam-

aged 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, roll up your windows and wear

hearing protection. Do not sound the siren

indoors or in enclosed areas where you and

others will be exposed to the sound. Only use

the siren for emergency response situations.

• Frequently inspect the speaker to ensure that
it is clear of any obstruction, such as mud or
snow, which will reduce maximum sound
output.

Signaling Limitations

• Be aware that the use of your visual and au­dible signaling devices does not give you the
right to force your way through traffic. Your
emergency lights, siren, and actions are
REQUESTING the right-of-way.

• Although your warning system is operating
properly, it may not alert everyone. People
may not hear, see, or heed your warning signal.
You must recognize this fact and continue
driving cautiously.

• Situations may occur which obstruct your
warning signal when natural or man-made
objects are between your vehicle and others.
This can also occur when you raise your hood
or trunk lid. If these situations occur, be espe­cially careful.

Driving Limitations

• At the start of your shift, you should ensure
that the light/sound system is securely attached
to the vehicle and operating properly.

• If the unique combination of emergency vehicle
equipment installed in your vehicle has
resulted in the siren controls being installed
in a position that does not allow you to operate
them by touch only, OPERATE CONTROLS
ONLY WHILE YOUR VEHICLE IS STOPPED.

Sound Limitations

• Before using the vehicle, check to see if the
siren speakers are concealed from view. If the
siren speaker is not in clear view on the front of
the vehicle, use extra caution when operating
the vehicle. A concealed siren speaker installa­tion is less effective at warning others.

• Maximum sound output will be severely re­duced if any objects are in front of the speaker.
If your installation has obstructions in front
of the speaker, drive even more cautiously.

• If driving conditions require your full atten­tion, you should avoid operating the siren
controls while the vehicle is in motion.

Continuing Education

• File these instructions in a safe place and
refer to them periodically. Give a copy of these
instructions to new recruits and trainees.

Failure to follow these safety precautions

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

-8-

4-1. GENERAL.

9

4-3. SELECTOR SWITCH.

All controls utilized during normal operation of
the Model PA300 are located on the front panel (see
figure 4-1).

The wired-in noise cancelling microphone
provides high quality voice reproduction in the public
address mode. The microphone push-to-talk switch
will override all siren functions, except radio rebroad­cast, for instant PA use.

4-2. GAIN CONTROL.

The GAIN control is used to turn the siren on
and off. Also, it is used to control the volume when
the siren is used for public address or radio amplifi­cation. Clockwise rotation of the knob increases voice
volume in the public address or radio amplification
mode. The GAIN control does not control the volume
of the siren signals.

The maximum clockwise setting of the control
will be determined, in most cases by the point at
which feedback or “squeal” occurs. This will depend
upon the microphone gain, open windows, speaker
placement, proximity of reflecting surfaces (building
or other vehicles), etc. Adjust the GAIN control to a
position just below the point at which feedback
occurs or as desired.

The Selector switch is a five-position rotary
switch used to select the mode of operation. The
following are positions on the Selector switch.

A. RADIO.

In this position, incoming radio messages
are amplified by the siren and rebroadcast over the
outside speaker.

B. MANUAL.

In this position, it is possible to operate the
siren by activating the HORN/SIREN switch. The
siren can also be activated by means of an auxiliary
switch, such as the horn ring button (refer to para­graph 4-6).

C. WAIL.

In this position, the siren produces a
continuous “wailing” sound, up and down in fre­quency.

D. YELP.

In this position; a continuous, rapid
“warbled” tone is generated.

Figure 4-1. Front View.

290A4507-0

E. HI-LO.

In this position, a two-tone sound will be
heard. This distinctive tone may be reserved for any
special indication or situation.

4-4. HORN/SIREN SWITCH.

The HORN/SIREN switch, located on the left
side of the front panel, activates the electronic air
horn sound (up) or peak-and-hold sound (down) in
any siren mode except radio.

-9-

4-5. TAP II FUNCTIONS.

Tap II allows the driver to change the siren
sound via the vehicle’s horn ring. This feature is
especially effective for clearing traffic. The chart
below demonstrates how the horn ring can be used to
change the siren sound:

TAP II FUNCTIONS

Selector First Horn Second Horn
Switch Ring Tap Ring Tap
Position Produces Produces

Wail Yelp Wail
Yelp Wail Yelp

4-6. PRESS AND HOLD FUNCTIONS.

Additional alternate sounds can be activated in
two other Selector switch positions, by depressing

and holding the horn ring for as long as the alternate
sound is desired. The chart below shows these
additional “Press and Hold” functions:

PRESS AND HOLD FUNCTIONS
(Models 690009 and 690010)

Selector Press on Release of
Switch Horn Ring Horn Ring
Position Produces Produces

Hi-Lo Air Horn Hi-Lo
Manual Peak and Coast down

Hold or and silence
Air Horn or silence

-10-

SECTION V

SERVICE AND MAINTENANCE

SAFETY MESSAGE TO PERSONNEL SERVICING

FEDERAL SIGNAL ELECTRONIC SIRENS

WARNING

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

• Read and understand all instructions in this

manual before servicing the electronic siren

or speaker.

• To properly service an electronic siren or

speaker: 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 service on a vehicle.

• Electronic circuit and speaker repairs must be

performed by a qualified and competent elec-

tronic technician.

• 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 both federal, state
and local standards or guidelines.

Failure to follow all safety precautions and

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

5-1. GENERAL.

For warranty service, contact your local Dis-

tributor.

The factory can and will service your equipment

or assist you with technical problems that cannot be
handled satisfactorily and promptly locally.

Communications and shipments should be

addressed to:

• 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.

• DO NOT connect this system to the positive
terminal of the battery until servicing is com­plete, and you have verified that there are no
short circuits to ground.

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

Service Department
Federal Signal Corporation
2645 Federal Signal Drive
University Park, IL 60466

1-800-433-9132

• After repair, test the electronic siren and
speaker system to ensure that it is operating
properly.

-11-

5-2. REPLACEMENT PARTS LIST.

0

Description Part Number

Transistor, Output, BUT70W 125467
Transformer, Output (690010) 1461358
Transformer, Output (690009) 1461359
Fuse, 20A, 3AG, 32V (690010) 148A127
Fuse, 10A, 3AG, 32V (690009) 148A108
Switch, Rotary 122376
Switch, Toggle 122377
Header, 10 Pole Molex 140454-05
Microphone 258B577-03
Microphone Clip 85361082
Microphone Strain Relief 231A148
Knob, Gain Control 141A102
Knob, Selector 141A111
Circuit Board Assy. (690009) 2005183-24
Circuit Board Assy. (690010) 2005183-14
Switch, Gain Control 106128

OUTPUT TRANSISTOR

Description Part Number

Harness, Wiring (690009) 1461388
Harness, Wiring (690010) 1461360
Kit, Installation Accessory (690009) 8537572
Kit, Installation Accessory (690010) 8537561
Bracket, Mounting 8536B022
Faceplate, Logo PA300 81461864
Faceplate, PA300 81461865
Adapter Cable 761300

OUTPUT

TRANSISTOR

MICROPHONE

FACEPLATE

TOGGLE SWITCH

SELECTOR KNOB

Figure 5-1. Internal View.

ROTARY SWITCH

GAIN CONTROL

KNOB

OUTPUT

TRANSFORMER

GAIN CONTROL

FACEPLATE LOGO

290A4507-1

-12-

255359A
REV. A 104 Printed in U.S.A.