Federal Signal Corporation e-Q2B Manual

Installation, Maintenance,
and Service Manual
255394
REV. E0 1120
Printed in U.S.A.
© Copyright 2011-2020 Federal Signal Corporation
e-Q2B Electronic Siren System

blank page
Limited Warranty
This product is subject to and covered by a limited warranty,
a copy of which can be found at www.fedsig.com/SSG-Warranty.
A copy of this limited warranty can also be obtained by written
request to Federal Signal Corporation, 2645 Federal Signal Drive,
University Park, IL 60484, email to [email protected] or
call [phone].
This limited warranty is in lieu of all other warranties, express or
implied, contractual or statutory, including, but not limited to the
warranty of merchantability, warranty of tness for a particular
purpose and any warranty against failure of its essential purpose.
2645 Federal Signal Drive
University Park, Illinois 60484-3167
www.fedsig.com
Customer Support
Police/Fire-EMS: 800-264-3578 • [phone]
Work Truck: 800-824-0254 • [phone]
Technical Support 800-433-9132 • [phone]
All product names or trademarks are properties of their respective owners.

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Installation, Maintenance, and Service Manual
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Contents
Safety Messages for Installers and Operators .........................................................................7
Safety Messages to Installers of Federal Signal Sound/Light Systems .......................................7
Safety Messages to Operators of Federal Signal Sound/Light Systems .................................... 9
An Overview of the e-Q2B Siren System.................................................................................11
e-Q2B Siren System..................................................................................................................................11
Siren Speakers ...........................................................................................................................................11
Convergence Network Control Head .................................................................................................12
LED Indicators............................................................................................................................................12
Specifications.............................................................................................................................................12
e-Q2B Kit Contents ..................................................................................................................................14
Wiring the e-Q2B Siren System................................................................................................16
Selecting the Mounting Locations........................................................................................................16
Wiring the Siren Amplifier.......................................................................................................................18
Connecting to the Serial Ports.........................................................................................................18
Connecting the Foot Switches for Cycle, Brake, and Air Horn...............................................19
Connecting the Switch Input for the Model e-Q2B-200-RCFD .............................................20
Connecting Speakers to the e-Q2B...............................................................................................21
Connecting the e-Q2B to the Rumbler®2 Low Frequency Amplifier................................... 27
Enabling the Horn-Ring Transfer of Siren Tones ....................................................................... 27
Enabling Radio Rebroadcast Over the Siren Speakers ...........................................................29
Connecting the PARK Detection Circuit.......................................................................................30
Connecting the Control Head..........................................................................................................31
Connecting the Federal Signal Microphone (P/N 258B8577-03) ..........................................31
Connecting the e-Q2B System to the Battery..................................................................................33
Preparing to Connect the Power Leads....................................................................................... 33
Connecting the Power Leads to the Vehicle Battery ............................................................... 33
Setting the Gain for Radio Rebroadcast and PA ....................................................................35
Setting the Gain for Radio Rebroadcast ............................................................................................35
Setting the Gain for Public Address (PA) ...........................................................................................36
Mounting the Siren Amplier and Control Head ....................................................................37
Mounting the Siren Amplifier................................................................................................................ 38
Mounting the Standard Control Head................................................................................................38
Mounting the Flush-Mount Control Head..........................................................................................40
Final Preparations of the e-Q2B Siren System.......................................................................42
Testing the Installation............................................................................................................................42

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Distributing the Safety Message Card ............................................................................................... 43
Applying the Siren Safety Labels in the Vehicle.............................................................................. 43
Operating the Standard e-Q2B Siren System .........................................................................44
Siren Tones................................................................................................................................................ 44
Siren Priorities........................................................................................................................................... 44
Manual Mode ............................................................................................................................................45
Cycle Foot Switch/Push Button .....................................................................................................45
Brake Foot Switch/Button................................................................................................................45
Radio Rebroadcast ............................................................................................................................45
Air Horn ......................................................................................................................................................46
Horn Ring ...................................................................................................................................................46
Public Address (PA) ................................................................................................................................. 47
Operating the e-Q2B-CAL Siren System .................................................................................48
Siren Tones................................................................................................................................................48
Siren Priorities...........................................................................................................................................48
Manual Mode ............................................................................................................................................49
Cycle Foot Switch/Push Button .....................................................................................................49
Brake Foot Switch/Button................................................................................................................49
Radio Rebroadcast ............................................................................................................................49
Air Horn ......................................................................................................................................................50
Horn Ring ....................................................................................................................................................51
Public Address (PA) ..................................................................................................................................51
Safety Messages to Personnel Servicing Electronic Sirens .................................................52
Servicing the e-Q2B Siren System...........................................................................................53
Servicing the Control Head...................................................................................................................53
Replacing the Selector Knob ..........................................................................................................53
Replacing the PA Volume Knob .....................................................................................................53
Removing the Standard Control Head ........................................................................................54
Reinstalling the Standard Control Head ......................................................................................55
Removing and Reinstalling the Flush-Mount Control Head....................................................56
Servicing the Siren Amplifier ................................................................................................................56
Removing the Siren Amplifier .........................................................................................................56
Reinstalling the Siren Amplifier ......................................................................................................56
Replacing the 30 A Fuse in the Siren Amplifier.........................................................................56
Getting Technical Support and Service...................................................................................57
Getting Repair Service............................................................................................................................ 57
Ordering Replacement Parts ................................................................................................................58

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Tables
Table 1 System specifications ................................................................................................................................ 12
Table 2 Siren specifications: 200 watts .............................................................................................................. 13
Table 3 Siren Specifications: 100 watts............................................................................................................... 13
Table 4 Kit contents: Models e-Q2B-100 and e-Q2B-200 (standard control head) ................................. 14
Table 5 Kit contents: Models e-Q2B-100 and e-Q2B-200 (flush-mount control head) ........................... 14
Table 6 Kit contents: Model e-Q2B-200-RCFD................................................................................................. 15
Table 7 Replacement parts.................................................................................................................................... 58
Figures
Figure 1 Dimensions of the control head ............................................................................................................. 17
Figure 2 Dimensions of the siren amplifier ......................................................................................................... 17
Figure 3 Serial port locations.................................................................................................................................. 19
Figure 4 Foot switch connections..........................................................................................................................19
Figure 5 Foot switch connections for the e-Q2B-200-RCFD......................................................................... 21
Figure 6 e-Q2B 200-watt speaker connections (BP200-Q or BP200-EF) ................................................ 23
Figure 7 e-Q2B 200-watt speaker connections with two 100-watt speakers........................................... 24
Figure 8 BP100 100-watt speaker connections ................................................................................................25
Figure 9 Rumbler 2 connections to the e-Q2B.................................................................................................26
Figure 10 Connections for horn-ring transfer.....................................................................................................28
Figure 11 Connections for radio rebroadcast.....................................................................................................29
Figure 12 Connections for the park detection circuit ...................................................................................... 30
Figure 13 Convergence Network connection between e-Q2B and control head .................................... 31
Figure 14 Microphone connections...................................................................................................................... 32
Figure 15 Connections for power, ground, and ignition.................................................................................. 34
Figure 16 Control head selections for radio rebroadcast............................................................................... 35
Figure 17 Gain control for radio rebroadcast ..................................................................................................... 36
Figure 18 Gain control for public address........................................................................................................... 36
Figure 19 Mounting information for the siren amplifier................................................................................... 38
Figure 20 Bracket attached to back of control head ...................................................................................... 39
Figure 21 Brackets attached to control head and mounting surface .......................................................... 39
Figure 22 Flush-mount control head .................................................................................................................... 41
Figure 23 e-Q2B system diagnostic LEDs.......................................................................................................... 42

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Figure 24 Safety message card (left) and siren safety labels (right).......................................................43
Figure 25 Control head push buttons, rotary switch, and PA volume control .....................................44
Figure 26 Settings for CYCLE function...........................................................................................................45
Figure 27 Settings for BRAKE function...........................................................................................................45
Figure 28 Settings for RADIO rebroadcast function...................................................................................46
Figure 29 Settings for AIR HORN ....................................................................................................................46
Figure 30 Horn button control of siren tone sequence............................................................................. 47
Figure 31 Push-to-Talk button for PA ..............................................................................................................47
Figure 32 Control head push buttons, rotary switch, and PA volume control .....................................48
Figure 33 Settings for CYCLE function...........................................................................................................49
Figure 34 Settings for BRAKE function...........................................................................................................49
Figure 35 Settings for RADIO rebroadcast function.................................................................................. 50
Figure 36 Settings for AIR HORN ................................................................................................................... 50
Figure 37 Horn button control of siren tone sequence ..............................................................................51
Figure 38 Push-to-Talk button for PA ..............................................................................................................51
Figure 39 Location of set screw in selector knob .......................................................................................53
Figure 40 PA volume knob replacement .......................................................................................................54
Figure 41 Control head removed from mounting surface .........................................................................55
Figure 42 Fuse replacement in the siren amplifier ....................................................................................57
Figure 43 Mounting Template for Flush-Mount Control Head .................................................................59

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Safety Messages for Installers and Operators
Safety Messages for Installers and Operators
For your safety, read and understand this manual thoroughly before installing,
operating, and servicing the e-Q2B Siren Amplifier. The safety messages presented
in this section and throughout the manual are reminders to exercise extreme care at
all times. Read and understand the safety instructions to installers (doc. no. 256A692),
and keep it close at hand for reference.
To download copies of this manual, go to www.fedsig.com or call the Federal Signal
Service Department at 1-800-433-9132, 7 a.m. to 5 p.m., Monday through Friday (CT).
Safety Messages to Installers of Federal Signal Sound/Light Systems
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.
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 oers guidance on “Permissible Noise Exposure.”
• All eective 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 dierent manufacturers may reduce
the warning eectiveness 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 ensure that there are no shavings present in or
near the unit.

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• 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.
• Make 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, 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 that
provides maximum signaling eectiveness 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
eectiveness 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 eective for warning others.
• Sound propagation and warning eectiveness 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 that connects to the vehicle
wiring without reviewing a vehicle wiring diagram available from the vehicle
manufacturer. Ensure that your installation will not aect 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
airbag.
• If a vehicle seat is temporarily removed, verify with the vehicle manufacturer if the
seat needs to be recalibrated for proper air bag deployment.
• Locate the control head so the vehicle, controls, and microphone can be operated
safely.
• When drilling into a vehicle structure, enure that both sides of the surface are clear
of anything that could be damaged.

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After Installation
• After installation, test the emergency warning 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
aected vehicle operation or changed any vehicle safety function or circuit.
• After testing is complete, provide a copy of these instructions to the instructional
sta and all operating personnel.
• File these instructions in a safe place and refer to them when maintaining or
reinstalling the product.
Failure to follow all safety precautions and instructions may result in property damage,
serious injury, or death.
RETAIN AND REFER TO THESE MESSAGES
Safety Messages to Operators of Federal Signal Sound/Light Systems
People’s lives depend on your safe operation of Federal Signal products. It is
important to read and follow all instructions shipped with the products. Listed below
are some other important safety instructions and precautions you should follow.
• Do not attempt to activate or deactivate the controls of the emergency warning
system while driving in a hazardous situation.
• Although your warning system is operating properly, it may not be completely
eective. People may not see, hear, or heed your warning signal. You must
recognize this fact and continue to drive cautiously.
• Situations may occur that obstruct your warning signal when natural and man-
made objects are between your vehicle and others, such as raising your hood or
trunk lid. If these situations occur, be especially careful.
• All eective sirens and horns produce loud sounds that may cause, in certain
situations, permanent hearing loss. You and your passengers should consider
taking appropriate safety precautions, such as wearing hearing protection.
• The eectiveness of an interior mounted warning light depends on the clarity, the
tinting, and the angle of the glass it is being placed behind. Tinting, dirt, defects,
and steeply angled glass reduce the light output of the warning light. This may
reduce the eectiveness of the light as a warning signal. If your vehicle has dirty,
tinted, or steeply angled glass, use extra caution when driving your vehicle or
blocking the right of way with your vehicle.
• In order to be an eective 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.

1010 e-Q2B Electronic Siren System
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• It is important that you fully understand how to safely operate this warning system
before use.
• Operate your vehicle and its light/sound system in accordance with your
department’s Standard Operating Procedures.
• If a selected function does not perform properly or if any of the lamps remain
illuminated when the control is o, 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 is 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 be sure the suction cups have a firm grip on the mounting
surface. An improperly secured light could fall o 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.

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An Overview of the e-Q2B Siren System
An Overview of the e-Q2B Siren System
The e-Q2B is a full-featured electronic siren. A state of the art microprocessor and
DSP technology create a system with a compact control head and a siren amplifier
that can be installed in the trunk, under the seat, or under the dash of any vehicle
with a 12-volt, negative-ground electrical system. The siren circuits are protected by a
replaceable 30 A fuse that protrudes from the siren housing.
e-Q2B Siren System
The e-Q2B is a modular system that includes either one 200-watt speaker or two
100-watt speakers, an amplifier/DSP (digital signal processor), and a Convergence
Network control head. These components work together to generate the
characteristic sound of the Federal Signal Q siren. Using DSP circuitry, the e-Q2B
amplifier is able to reproduce the true Q sound, rather than relying on a simple digital
recording. The DSP enables the product to function either manually or automatically
for hands-free operation.
The Model e-Q2B-200 siren amplifier requires two 100-watt neodymium drivers
that enable the unit to reproduce the harmonics that are essential for the precise
reproduction of the Q sound. To deliver the Q sound eectively, the e-Q2B produces
a full 200 watts of output. The e-Q2B produces wail, yelp, priority, and manual siren
with brake tones, as well as an air horn sound.
The Model e-Q2B-100 is a 100-watt siren amplifier. It incorporates all the features of
the standard 200-watt siren, but is designed to drive a single 100-watt speaker, such
as a Federal Signal Model BP100 or a Model ES100.
Siren Speakers
Federal Signal oers speakers for the Model e-Q2B-200 and the Model e-Q2B-100 that
meet SAE J1849 and CCR Title 13, Article 22, Class “A” for sound output: the BP200
Series, the BP100 Series, and the ES100.
The Model BP200-Q 200-watt siren speaker mounts flush within the bumper of your
vehicle. It has the classic, chrome-plated Q grille. This speaker system enables you to
clear trac with the penetrating sound of the Q and also allows you to maintain the
traditional look of the Q siren when using the optional Q grille. Also available is the
BP200-EF compact 200-watt speaker with an “Electric F” grille, which also mounts
flush within the bumper of your vehicle.
The Model BP100 100-watt siren speaker has a compact size that allows it to be
mounted on top of or behind the bumper, or installed beyond the grille of popular
emergency vehicles. Available in two finishes, the BP100 has a black matte finish, and
the BP100P is highly polished. The Dynamax®ES100 is also an option for increased
performance and reliability. The larger diaphragm of the ES100 enables the speaker to
capture lower frequency ranges for a more robust sound.

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An Overview of the e-Q2B Siren System
Convergence Network Control Head
The Convergence Network control head digitally transmits and prioritizes end-user
commands. The control head/amplifier interface uses solid-state digital decoding,
which minimizes interconnection complexity. The control head allows the user to
operate several siren functions. The traditional Q Wail can be activated in automatic
or manual modes. Additional features include a Q Yelp, Q Brake, digitally recorded Air
Horn, PA/radio rebroadcast, and push-to-talk via an integral microphone. PA volume
can be adjusted by the user with a volume control potentiometer.
LED Indicators
Green LEDs on the side of the siren amplifier indicate when power is supplied to the
amplifier, when output is available and when a load is connected. Red LEDs indicate a
speaker short or thermal overload. All buttons on the control head glow amber when
the system is on. Pressed buttons glow brighter to indicate that the function they
control is active.
Specications
Table 1 System specications
Input Voltage 11 Vdc to 16 Vdc
Polarity Negative ground only
Operating Temperature Range –40°C to +65°C (–40°F to +149°F)
Standby Current Less than 0.5 A
Dimensions:
Siren Amplier
Height with cover 3.98 inches (10.11 cm)
Width 7.66 inches (19.44 cm)
Length 10.41 inches (26.44 cm)
Net Weight 6.40 lb (2.91 kg)
Control Head
Height 3.25 inches (8.25 cm)
Width 1.18 inches (3.00 cm)
Length 6.80 inches (17.27 cm)
Net Weight 0.80 lb (0.36 kg)
Shipping Weight 13.00 lb (6.10 kg)

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An Overview of the e-Q2B Siren System
Table 2 Siren specications: 200 watts
Operating Current 20 A (nominal) (13.6 V battery, 5.5-ohm load at high power)
Frequency Range 725 to 1600 Hz
Nominal Cycle Rate Wail: 12 cycles per minute
Yelp: 180 cycles per minute
Priority: 370 cycles per minute
Nominal Voltage Output 33 VRMS (siren tones)
Audio Response 300 Hz to 3 000 Hz ± 3 dB
Audio Power 200 W in PA Mode (typical with 1.4 V peak-to-peak input)
Harmonic Distortion Less than 10 percent from 5 to 200 W
Input Impedance (PA) 4 000 ohms (nominal)
Siren Tone Compliances SAE J1849 JUL89
Table 3 Siren Specications: 100 watts
Operating Current 10 A (nominal) (13.6 V battery, 11-ohm load at high power)
Frequency Range 725 to 1600 Hz
Nominal Cycle Rate Wail: 12 cycles per minute
Yelp: 180 cycles per minute
Priority: 370 cycles per minute
Nominal Voltage Output 33 Vrms (siren tones)
Audio Response 300 Hz to 3 000 Hz ± 3 dB
Audio Power 200 W max. in PA Mode (typical with 1.4 V peak-to-peak input)
Harmonic Distortion Less than 10 percent from 5 to 200 W
Input Impedance (PA) 4 000 ohms (nominal)
Siren Tone Compliances SAE J1849 JUL89

1414 e-Q2B Electronic Siren System
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An Overview of the e-Q2B Siren System
e-Q2B Kit Contents
After unpacking the kit, examine it for damage that may have occurred in transit. If the
product 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. Ensure all parts in the packing list are included in the shipment. If
any parts are missing, call Federal Signal Customer Support at 1-800-264-3578, 7 a.m.
to 5 p.m., Monday through Friday, CT.
Table 4 Kit contents: Models e-Q2B-100 and e-Q2B-200 (standard control head)
Qty. Description Part Number
1
Control Head (Standard)
OR
Control Head (CAL13)
8616026
8616058
1
e-Q2B Siren Amplier, 200 W
OR
e-Q2B Siren Amplier, 100 W
8616033
8616033-02
1 Connector, RS485, 25-foot 1751357-02
1 Connector, 4-Position, Speaker 140417-04
1 Connector, 3-Position, Power 140535
1 Connector, 12-Position 140584-12
2 Bracket, Mounting, Control Head 85361065
2 Screw, Mach. Pan Head, #6-32 7000A404-05
2Screw, Cap, Hex Head, 1/4-20 x 3/4-inch 7002A000-12
2 Screw, Pan Head, #10, Thread-Forming 7011A047-08
2 Lock Washer, Split, #6 7074A001
2 Lock Washer, Ext, Tooth, 1/4-inch 7075A007
1 Microphone with Modular Plug 256B577-03
1 Card, Safety Instructions 256B691
1 Label, Warning, Siren/Speaker 1612339
1 Inserts, Legends 8572294
Table 5 Kit contents: Models e-Q2B-100 and e-Q2B-200 (ush-mount control head)
Qty. Description Part Number
1
Control Head (Flush-Mount)
OR
Control Head (CAL13)
8616042
8616042-01
1
e-Q2B Siren Amplier, 200 W
OR
e-Q2B Siren Amplier, 100 W
8616033
8616033-02
1 Connector, RS485, 25-foot 1751357-02
1 Connector, 4-Position, Speaker 140417-04
1 Connector, 3-Position, Power 140535
1 Connector, 12-Position 140584-12
4 Screw, Phillips, Thread-Forming, Pan-Head, #6 7011A120
1 Microphone with Modular Plug 256B577-03
1 Card, Safety Instructions 256B691
1 Label, Warning, Siren/Speaker 1612339
1 Inserts, Legends 8572294

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An Overview of the e-Q2B Siren System
Table 6 Kit contents: Model e-Q2B-200-RCFD
Qty. Description Part Number
1 Connector, 4-Position, Speaker 140417-04
1 Connector, 3-Position, Power 140535
1 Connector, 12-Position 140584-12
1 Card, Safety Instructions 256B691
1 Label, Warning, Siren/Speaker 1612339

1616 e-Q2B Electronic Siren System
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Wiring the e-Q2B Siren System
Wiring the e-Q2B Siren System
Before permanently mounting the e-Q2B Siren System, plan all wire routings and
select the mounting locations for the siren amplifier and control head. Read and
understand all instructions included with related equipment before installing it.
Selecting the Mounting Locations
When fastened to the back of the control head, the mounting bracket covers the
wiring connectors and a supplemental control for the gain or volume of the radio
rebroadcast feature. To facilitate the installation of the e-Q2B, select mounting
locations for the control head and the siren amplifier before permanently mounting
them in the vehicle. After completing the wiring described in this section, refer to the
instructions for mounting the control head and the siren amplifier on page 37.
AIRBAG DEPLOYMENT: Do not install equipment or route wiring in the
deployment path of an airbag. Failure to observe this warning will reduce the
eectiveness of the airbag or potentially dislodge the equipment, causing
serious injury or death.
SEAT REMOVAL PRECAUTION: If a vehicle seat is temporarily removed, verify
with the vehicle manufacturer if the seat needs to be recalibrated for proper
airbag deployment. Failure to follow this warning cause serious injury or
death.
UNIT REQUIRES AIR FLOW: The siren amplier is cooled by an internal fan.
Do not install it in areas where the air ow is restricted. Do not mount the unit
near a heater duct or under the hood.
UNIT IS NOT WATERPROOF: The housing of the e-Q2B siren amplier is NOT
waterproof. The module must be mounted in a location that is sheltered from
falling rain, snow, standing water, etc.
For the control head, select a mounting location that allows the vehicle, controls,
and microphone to be operated safely under all driving conditions. To identify safe
mounting areas for equipment inside the vehicle, consult the vehicle manufacturer’s
guidelines. To avoid driver distraction and unreliable switch activation, the mounting
location must not allow any movement of the control head. Do not select a padded
surface for the mounting location of the control head. For the siren amplifier,
suggested mounting locations are under the front seat, in a vehicle compartment, or
in the trunk under the rear deck near the rear-seat speakers.

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Wiring the e-Q2B Siren System
Wiring connectors are located on the siren amplifier. Ground, ignition, and power
connections are located on the three-position, pluggable, terminal block. To
maintain the reliability of the siren amplifier, do not block the air vents or the fan.
See Figure 2.
Figure 1 Dimensions of the control head
2.2 in
(5.59 cm)
6.8 in
(17.27 cm)
3.25 in
(8.25 cm)
Figure 2 Dimensions of the siren amplier
TOP VIEW
9.28 in
(23.57 cm)
10.41 in
(26.44 cm)
6.91 in
(17.55 cm)
30 AMP
FUSE
RED
(+BAT)
WHT/RED
(IGN)
BLK
(-BAT)
REMOTE MIC
7.66 in
(19.44 cm)
RADIO
PARK
2
A/H
4
AUX
68
BRAKE
1 33
RING
GRND
10
CYCLE
12
HORN
5
RMBLR
ENBL
RMBLR
RADIO
7
RADIO
9
RADIO
11
FEDERAL SIGNAL
CONVERGENCE NETWORK
SPEAKER OUTPUT
-POWER
-OUTPUT
-LOAD
LIMIT-
SHORT-
THERMAL-
– BLK – GRN + WHT + RED
FRONT VIEW
8.19 in
(23.57 cm)
SIDE VIEW
3.91 in
(17.55 cm)
3.91 in
(17.55 cm)
COOLING FAN
AIR VENTS ARE
LOCATED ON
THIS SIDE
290A6801

1818 e-Q2B Electronic Siren System
Federal Signal www.fedsig.com
Wiring the e-Q2B Siren System
Wiring the Siren Amplier
The siren amplifier has the following types of Convergence Network connections via
cables and locking connectors included with the e-Q2B kit:
• Three “plug and play” serial ports that communicate on the Federal Signal
Convergence network with the control head, compatible light bars and the Federal
Signal Model 660100 Relay Module/Two-Channel Flasher.
• Speakers
• Radio rebroadcast
• Park disable circuit
• Horn ring circuit
• Foot switch inputs for CYCLE, BRAKE, and AIR HORN
HIGH CURRENT ARCING: Do not connect this system to the vehicle battery
until ALL other electrical connections are made and you have veried that no
shorts exist. High current conductors can cause hazardous sparks or burning
wire, resulting in electrical res.
DRILLING PRECAUTIONS: Before drilling holes, check the area into which
you plan to drill to ensure that you do not damage vehicle components. All
drilled holes should be deburred and all sharp edges should be smoothed.
Additionally, all exterior drilled holes must be sealed with Motorcraft seam
sealer T-A-2-B or equivalent to prevent the potential exposure to carbon
monoxide or other potentially harmful fumes. Failure to observe this warning
could cause serious injury or death.
To prepare the vehicle for the electrical installation of the e-Q2B Siren System:
1. After planning where to route the wires and cables for the e-Q2B Siren System
components, such as Federal Signal warning lights, directional lights, and
speakers, drill the holes for the wiring. Smooth, deburr, and insert a grommet in
each hole. Use a silicone sealant where needed.
2. Route wires from the system components through the vehicle to their connection
points.
The next sections describe how to connect and wire each system component to the
siren amplifier:
Connecting to the Serial Ports
There are three network ports on the upper right corner of the front of the siren
amplifier. The ports connect Federal Signal network devices through RS-485
communication cables. To connect the control head, use the 25-foot FS Convergence
Network cable (P/N 1751357-02).

19
Installation, Maintenance, and Service Manual
Federal Signal www.fedsig.com
Wiring the e-Q2B Siren System
Figure 3 shows the network connections on the siren amplifier. Refer to the mounting
instructions included with the products after you connect all system devices.
Figure 3 Serial port locations
30 AMP
FUSE
RED
(+BAT)
WHT/RED
(IGN)
BLK
(-BAT)
REMOTE MIC
RADIO
PARK
2
A/H
4
AUX
68
BRAKE
1 33
RING
GRND
10
CYCLE
12
HORN
5
RMBLR
ENBL
RMBLR
RADIO
7
RADIO
9
RADIO
11
FEDERAL SIGNAL
CONVERGENCE NETWORK
SPEAKER OUTPUT
-POWER
-OUTPUT
-LOAD
LIMIT-
SHORT-
THERMAL-
− BLK − GRN + WHT + RED
RESERVE ONE SERIAL PORT
FOR THE CONNECTION TO
THE CONTROL HEAD. (SEE
PAGE 28.)
290A6803
To connect the serial devices:
1. Carefully route the cables from the network devices through the vehicle to the
connectors on the siren amplifier.
2. To provide strain relief, secure the cables with installer-supplied clamps and hold-
downs.
3. Insert the modular connector at the end of each cable into one of the three serial
ports.
Connecting the Foot Switches for Cycle, Brake, and Air Horn
For input connections for the Model EQ2B-200-RCFD, see Figure 4.
Figure 4 Foot switch connections
REMOTE MIC
RADIO
PARK
2
A/H
4
AUX
68
BRAKE
1 33
RING
GRND
10
CYCLE
12
HORN
5
RMBLR
ENBL
RMBLR
RADIO
7
RADIO
9
RADIO
11
AIR HORN FOOT SWITCH
BRAKE FOOT SWITCH
GROUND
CYCLE FOOT SWITCH
BAT −GND
12-POSITION
TENSION CLAMP
CONNECTOR
P/N 140584-12
INSULATION STRIPPED
0.275 in (0.7 mm)
1. INSERT SCREWDRIVER
TO OPEN TENSION CLAMP.
2. SLIP WIRE INTO CONNECTOR.
3. REMOVE SCREWDRIVER TO
LOCK CLAMP ON WIRE.
290A6804

2020 e-Q2B Electronic Siren System
Federal Signal www.fedsig.com
Wiring the e-Q2B Siren System
The CYCLE, BRAKE, and AIR HORN functions are activated either by control head
buttons or by remotely located foot switches. The foot switches connect to the front of
the siren amplifier.
The siren can be controlled by the position of the five-position rotary switch located
on the control head. The five rotary switch positions are OFF, MANUAL, WAIL, YELP,
and PRIORITY. In addition, the radio rebroadcast function is available while the
MANUAL mode of operation is selected and the RADIO button is activated.
If the MANUAL position is selected, the siren can be manually activated by pressing
the CYCLE or BRAKE push buttons or foot switches (if installed). By activating
the CYCLE button, the siren tone increases in frequency. By releasing the CYCLE
button, the siren tone gradually decreases in frequency. The activation of the
CYCLE switch simulates the application of voltage to the original electromechanical
Q siren. Releasing the CYCLE button simulates the coasting down of the original
electromechanical Q siren.
The activation of the BRAKE button simulates the accelerated braking, or
slowing down, of the siren output. This braking action is similar to the original
electromechanical Q siren when the brake solenoid is activated.
The AIR HORN function is selectable anytime the rotary switch is not in the o
position. The AIR HORN tone sounds with all other siren tones: MANUAL, CYCLE,
BRAKE, WAIL, YELP, and PRIORITY. The microphone via its push-to-talk switch or the
PA/radio rebroadcast function overrides the AIR HORN function.
Connecting the Switch Input for the Model e-Q2B-200-RCFD
The Model e-Q2B-200-RCFD siren is designed to operate without a control head.
The siren produces a continuous e-Q wail tone while the CYCLE input is activated.
The foot switch input is connected to the front of the siren amplifier through the 2 by
6 plug-in terminal block. The CYCLE input is the only active input on this model. No
other features are available.
The power connections are the same as those for the standard e-Q siren. Connecting
the CYCLE input to ground through a switch generates a siren tone. Immediately
disconnecting the switch turns o the siren.