Federal Signal Corporation e-Q2B Manual

Installation, Maintenance,
and Service Manual
255394D
REV. D 0315
Printed in U.S.A.
e-Q2B Electronic Siren System
Distributed By:

blank page

e-Q2B Siren System 3
Contents
Chapter 1 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
Chapter 2 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
System Specications .............................................................................................................................12
Siren Specications: 200 Watts ..............................................................................................................13
Siren Specications: 100 Watts ..............................................................................................................13
e-Q2B Kit Contents ................................................................................................................................14
Chapter 3 Wiring the e-Q2B Siren System ..................................................................................16
Selecting the Mounting Locations..........................................................................................................16
Wiring the Siren Amplier .....................................................................................................................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 Amplier ................................................26
Enabling the Horn-Ring Transfer of Siren Tones..............................................................................26
Enabling Radio Rebroadcast Over the Siren Speakers .....................................................................28
Connecting the PARK Detection Circuit ..........................................................................................29
Connecting the Control Head............................................................................................................30
Connecting the Federal Signal Microphone (P/N 258B8577-03).....................................................31
Connecting the e-Q2B System to the Battery.........................................................................................32
Preparing to Connect the Power Leads .............................................................................................32
Connecting the Power Leads to the Vehicle Battery.........................................................................32
Chapter 4 Setting the Gain for Radio Rebroadcast and PA .......................................................34
Setting the Gain for Radio Rebroadcast .................................................................................................34
Setting the Gain for Public Address (PA) ...............................................................................................35
Chapter 5 Mounting the Siren Amplier and Control Head .......................................................36
Mounting the Siren Amplier.................................................................................................................36
Mounting the Standard Control Head.....................................................................................................37
Mounting the Flush-Mount Control Head ..............................................................................................39
Chapter 6 Final Preparations of the e-Q2B Siren System..........................................................41

Contents
e-Q2B Siren System
4
Testing the Installation............................................................................................................................41
Distributing the Safety Message Card ....................................................................................................42
Applying the Siren Safety Labels in the Vehicle ....................................................................................42
Chapter 7 Operating the Standard e-Q2B Siren System............................................................43
Siren Tones .............................................................................................................................................43
Siren Priorities ........................................................................................................................................43
Manual Mode..........................................................................................................................................44
Cycle Foot Switch/Push Button .......................................................................................................44
Brake Foot Switch/Button.................................................................................................................44
Radio Rebroadcast ............................................................................................................................45
Air Horn..................................................................................................................................................45
Horn Ring ...............................................................................................................................................46
Public Address (PA)................................................................................................................................46
Chapter 8 Operating the e-Q2B-CAL Siren System....................................................................47
Siren Tones .............................................................................................................................................47
Siren Priorities ........................................................................................................................................47
Manual Mode..........................................................................................................................................48
Cycle Foot Switch/Push Button .......................................................................................................48
Brake Foot Switch/Button.................................................................................................................48
Radio Rebroadcast ............................................................................................................................49
Air Horn..................................................................................................................................................49
Horn Ring ...............................................................................................................................................50
Public Address (PA)................................................................................................................................50
Chapter 9 Safety Messages to Personnel Servicing Electronic Sirens....................................51
Chapter 10 Servicing the e-Q2B Siren System ...........................................................................52
Servicing the Control Head ....................................................................................................................52
Replacing the Selector Knob.............................................................................................................52
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.............................................................55
Servicing the Siren Amplier .................................................................................................................55
Removing the Siren Amplier ..........................................................................................................55
Reinstalling the Siren Amplier........................................................................................................56
Replacing the 30 A Fuse in the Siren Amplier................................................................................56
GettingTechnical Support and Service ...................................................................................................56
Ordering Replacement Parts ...................................................................................................................57
Returning a Product to Federal Signal....................................................................................................57

Contents
e-Q2B Siren System 5
Tables
Table 2.1 Kit contents: Models e-Q2B-100 and e-Q2B-200 (standard control head).................................14
Table 2.2 Kit contents: Models e-Q2B-100 and e-Q2B-200 (ush-mount control head)...........................14
Table 2.3 Kit contents: Model e-Q2B-200-RCFD .....................................................................................15
Table 10.1 Replacement parts ....................................................................................................................57
Figures
Figure 3.1 Dimensions of the control head ................................................................................................17
Figure 3.2 Dimensions of the siren amplier.............................................................................................17
Figure 3.3 Serial port locations ..................................................................................................................19
Figure 3.4 Foot switch connections ...........................................................................................................19
Figure 3.5 Foot switch connections for the e-Q2B-200-RCFD.................................................................20
Figure 3.6 e-Q2B 200-watt speaker connections (BP200-Q or BP200-EF) ..............................................22
Figure 3.7 e-Q2B 200-watt speaker connections with two 100-watt speakers..........................................23
Figure 3.8 BP100 100-watt speaker connections.......................................................................................24
Figure 3.9 Rumbler 2 connections to the e-Q2B........................................................................................25
Figure 3.10 Connections for horn-ring transfer .........................................................................................27
Figure 3.11 Connections for radio rebroadcast ..........................................................................................28
Figure 3.12 Connections for the park detection circuit..............................................................................29
Figure 3.13 Convergence Network connection between e-Q2B and control head....................................30
Figure 3.14 Microphone connections.........................................................................................................31
Figure 3.15 Connections for power, ground, and ignition .........................................................................33
Figure 4.1 Control head selections for radio rebroadcast ..........................................................................34
Figure 4.2 Gain control for radio rebroadcast............................................................................................35
Figure 4.3 Gain control for public address.................................................................................................35
Figure 5.1 Mounting information for the siren amplier...........................................................................37
Figure 5.2 Bracket attached to back of control head..................................................................................38
Figure 5.3 Brackets attached to control head and mounting surface .........................................................38
Figure 5.4 Flush-mount control head.........................................................................................................39
Figure 6.1 e-Q2B system diagnostic LEDs................................................................................................41
Figure 6.2 Safety message card (left) and siren safety labels (right).........................................................42
Figure 7.1 Control head push buttons, rotary switch, and PA volume control...........................................43
Figure 7.2 Settings for CYCLE function ...................................................................................................44

Contents
e-Q2B Siren System
6
Figure 7.3 Settings for BRAKE function...................................................................................................44
Figure 7.4 Settings for RADIO rebroadcast function ................................................................................45
Figure 7.5 Settings for AIR HORN............................................................................................................45
Figure 7.6 Horn-button control of siren tone sequence..............................................................................46
Figure 7.7 Push-to-Talk button for PA ......................................................................................................46
Figure 8.1 Control head push buttons, rotary switch, and PA volume control...........................................47
Figure 8.2 Settings for CYCLE function ...................................................................................................48
Figure 8.3 Settings for BRAKE function...................................................................................................48
Figure 8.4 Settings for RADIO rebroadcast function ................................................................................49
Figure 8.5 Settings for AIR HORN............................................................................................................49
Figure 8.6 Horn-button control of siren tone sequence..............................................................................50
Figure 8.7 Push-to-Talk button for PA ......................................................................................................50
Figure 10.1 Location of set screw in selector knob ...................................................................................52
Figure 10.2 PA volume knob replacement .................................................................................................53
Figure 10.3 Control head removed from mounting surface.......................................................................54
Figure 10.4 Fuse replacement in the siren amplier .................................................................................56
Figure 10.5 Mounting Template for Flush-Mount Control Head...............................................................59

e-Q2B Siren System 7
CHAPTER 1
Safety Messages for Installers and Operators
For your safety, read and understand this manual thoroughly before installing, operating, and servicing
the e-Q2B Siren Amplier. The safety messages presented in this chapter and throughout the manual are
reminders to exercise extreme care at all times. In addition, 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. In addition, listed below are some other
important safety instructions and precautions you should follow:
Before Installation
Qualications
• To properly install an electronic siren, you must have a good understanding of automotive electrical
procedures and systems, along with prociency 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 ampliers 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.

Chapter 1: Safety Messages for Installers and Operators
e-Q2B Siren System
8
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 veried that no shorts exist. If wiring is shorted
to vehicle frame, high current conductors can cause hazardous sparks resulting in electrical res or
ying molten metal.
• Be sure the siren amplier 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.
• 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, be sure that both sides of the surface are clear of anything that
could be damaged.

Chapter 1: Safety Messages for Installers and Operators
e-Q2B Siren System 9
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 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 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. In addition, listed below are some other important safety
instructions and precautions you should follow:
• Do not attempt to activate or de-activate 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 effective. People
may not see, hear, or heed your warning signal. You must recognize this fact and continue driving
cautiously.
• Also, situations may occur which 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 effective 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 effectiveness 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 effectiveness 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 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.

Chapter 1: Safety Messages for Installers and Operators
e-Q2B Siren System
10
• It is important that you fully understand how to safely operate this warning system before use.
• You should only 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 off, disconnect the power connector from the control unit and contact the nearest service
center.
• At the start of your shift, you should 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 rm 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 nish, surface atness,
and thickness of the steel mounting surface. Therefore, to promote proper magnetic mounting:
✓ Mounting surface and magnets must be kept clean, dry, and free of foreign particles that
prevent good surface contact.
✓ Ensure that mounting surface is at.
✓ A magnet mounting system should not be used on vehicles with vinyl tops.
✓ To prevent sliding of light assembly on mounting surface, quick acceleration and hard stops
should be avoided.
Failure to follow these precautions may result in property damage, serious injury, or death.

e-Q2B Siren System 11
CHAPTER 2
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 to
create a system with a small compact control head and a siren amplier 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
amplier/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 amplier 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 amplier 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 effectively, 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 amplier. 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 offers 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 ush within the bumper of your vehicle. It has the
classic, chrome-plated Q grille. This speaker system enables you to clear traf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 ush 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 nishes,
the BP100 has a black matte nish 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.

Chapter 2: An Overview of the e-Q2B Siren System
e-Q2B Siren System
12
Convergence Network Control Head
The Convergence Network control head digitally transmits and prioritizes end-user commands. The
control head/amplier 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 amplier indicate when power is supplied to the amplier, 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.
System Specications
Input Voltage 11 Vdc to 16 Vdc
Polarity Negative ground only
Operating Temperature Range –40 °C to +65 °C
Standby Current Less than 0.5 A
Dimensions:
Siren Amplier
Height with cover 3.98 in (10.11 cm)
Width 7.66 in (19.44 cm)
Length 10.41 in (26.44 cm)
Net Weight 6.40 lb (2.91 kg)
Control Head
Height 3.25 in (8.25 cm)
Width 1.18 in (3.00 cm)
Length 6.80 in (17.27 cm)
Net Weight 0.80 lb (0.36 kg)
Shipping Weight 13.00 lb (6.10 kg)

Chapter 2: An Overview of the e-Q2B Siren System
e-Q2B Siren System 13
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
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

Chapter 2: An Overview of the e-Q2B Siren System
e-Q2B Siren System
14
e-Q2B Kit Contents
After unpacking the kit, examine it for damage that may have occurred in transit. If the product has been
damaged, le 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 2.1 Kit contents: Models e-Q2B-100 and e-Q2B-200 (standard control head)
Qty. Description Part Number
1
Control Head (Standard)
OR
Control Head (Standard)
8616026
8616058-CAL
1
e-Q2B Siren Amplier, 200 W
OR
e-Q2B Siren Amplier, 100 W
8616033
8616033-02
1 Connector, RS485, 25 ft 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
2 Screw, Cap, Hex Head, 1/4"-20 x 3/4"7002A000-12
2 Screw, Pan Head, #10, Thread-Forming 7011A047-08
2 Lock Washer, Split, #6 7074A001
2 Lock Washer, Ext, Tooth, 1/4" 7075A007
1 Microphone with Modular Plug 256B577-03
1 Card, Safety Instructions 256B691
1 Label, Warning, Siren/Speaker 1612339
Table 2.2 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 (Flush-Mount)
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 ft 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

Chapter 2: An Overview of the e-Q2B Siren System
e-Q2B Siren System 15
Table 2.3 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

e-Q2B Siren System
16
CHAPTER 3
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 amplier and control head. Also 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 amplier before permanently
mounting them in the vehicle. After completing the wiring described in this chapter, refer to the
instructions for mounting the control head and the siren amplier in Chapter 5 on page 36.
AIRBAG DEPLOYMENT—Do not install equipment or route wiring in the
deployment path of an air bag. Failure to observe this warning will reduce the
effectiveness of the air bag 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 air bag
deployment.
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 amplier, 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.

Chapter 3: Wiring the e-Q2B Siren System
e-Q2B Siren System 17
Wiring connectors are located on the siren amplier. Ground, ignition, and power connections are located
on the three-position, pluggable, terminal block. To maintain the reliability of the siren amplier, do not
block the air vents or the fan (Figure 3.2).
Figure 3.1 Dimensions of the control head
6.80 in
(17.27 cm)
3.25 in
(8.25 cm)
FRONT VIEW (8616026 SHOWN) RIGHT SIDE VIEW
AIR
HORN
BRAKE
CYCLE
RADIO
VOLUME
OFF
MANUAL
WAIL
YELP
PRTY
1.18 in
(3.00 cm)
290A6802
Figure 3.2 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

Chapter 3: Wiring the e-Q2B Siren System
e-Q2B Siren System
18
Wiring the Siren Amplier
The siren amplier 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 lightbars, 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—When drilling holes, check the area into which you
are drilling to be sure that you do not damage vehicle components while drilling.
All drilled holes should be de-burred and all sharp edges should be smoothed. All
wiring routings going through drilled holes should be protected by a grommet or
convolute/split loom tubing.
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, de-burr, 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 amplier:
Connecting to the Serial Ports
There are three network ports on the upper right corner of the front of the siren amplier. 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).
Figure 3.3 on page 19 shows the network connections on the siren amplier. Refer to the mounting
instructions included with the products after you connect all system devices.
To connect the serial devices:
1. Carefully route the cables from the network devices through the vehicle to the connectors on
the siren amplier.

Chapter 3: Wiring the e-Q2B Siren System
e-Q2B Siren System 19
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.
Figure 3.3 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
Connecting the Foot Switches for Cycle, Brake, and Air Horn
For input connections for the Model EQ2B-200-RCFD, see Figure 3.4.
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 amplier.
Figure 3.4 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

Chapter 3: Wiring the e-Q2B Siren System
e-Q2B Siren System
20
The siren can be controlled by the position of the ve-position rotary switch located on the control
head. The ve 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 off 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 amplier through the 2 x 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
off the siren.
Figure 3.5 Foot switch connections for the e-Q2B-200-RCFD
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
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.
290A7830