st280 - Galls
Street Thunder
ST280
SIREN AMPLIFIER
WITH
LIGHT CONTROLS
INSTALLATION AND OPERATING INSTRUCTIONS
1340 Russell Cave Road / P.O. Box 54308 Lexington, KY 40505
Tel: (800) 477-7766
Fax: (800) 944-2557
Website: www.galls.com
PLITSTR311 REV. D
4/25/05
.
INSTALLATION INFORMATION
MODEL:
ST280
SERIAL #:
PURCHASE DATE:
INSTALLER:
DEALER:
INSTALLATION DATE:
OPTION JUMPERS
Negative Auxiliary Switching
Audible Beep disable
Negative Park Kill Switching
8 sec. gun lock S4
Two-Tone Enabled
Auxiliary Override
Thunder Disabled
Pursuit Disable
Model and serial number located on bottom of unit
TABLE OF CONTENTS
GENERAL DESCRIPTION
INSTALLATION
INSTALLER-SELECTABLE OPTIONS
MOUNTING
ELECTRICAL CONNECTIONS
Siren Electrical Connections
Siren Wiring Diagram
Lighting Electrical Connections
Lighting Wiring Diagram
OPERATION
LIGHT SLIDE SWITCH
LIGHT PUSH BUTTON SWITCHES
SELECTOR SWITCH
MANUAL/HORN ROCKER SWITCH
VOLUME CONTROLS
MICROPHONE
AUXILIARY INPUT
PARK KILL
SPEAKER DIAGNOSTICS
SERVICE
TROUBLESHOOTING
SPECIFICATIONS
LIMITED WARRANTY
RETURN
2
2-10
3-4
5
5-10
6-7
8
9
10
11-14
11
11
12
13
14
14
14
14
14
15-17
15
16
16
17
NOTICE
Due to continuous product improvements, we must reserve the right to change any specifications and
information, contained in this manual at any time without notice. Galls makes no warranty of any kind
with regard to this manual, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose. Galls shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this manual.
-1-
GENERAL DESCRIPTION
The ST280 Siren Amplifier is a premium 200W unit designed for single or dual
100W speaker use and full lighting control.
The primary operating modes are Thunder, Yelp, Wail, Hands Free, Manual, PA,
and Radio. A Noise Canceling PA Override and push-button Horn Override are
available in all modes. A rocker switch is provided for momentary tone toggle
operation in the Thunder, Yelp, and Wail modes. It also allows manual siren
control in the Manual or PA modes. The Thunder function can be optionally
replaced by Two-Tone or disabled entirely with program jumpers. Another feature
allows cycling through Wail, Yelp, Thunder, and Standby by providing a signal to
the horn ring auxiliary wire when the function switch is in the Hands Free (HF)
position. A Park Kill option is provided for connection to a door switch, etc. to
disable the siren when exiting the vehicle. Radio and PA volume controls are
provided on the front panel. Also located on the front panel are two LED's for
speaker diagnostics.
This unit additionally contains several distinct controls for operation of vehicle
devices. A slide switch allows quick pursuit mode operation. The far right slide
position can be set up to activate maximum lights and siren for pursuit mode. There
are four push buttons to control four different lighting or auxiliary functions.
The front panel is backlighted with LED's for night visibility. This compact unit
utilizes short circuit, high voltage, low voltage, and reverse polarity protection
systems for maximum service life.
INSTALLATION
Proper installation of the unit is essential for years of safe, reliable operation.
Please read all instruction before installing the unit. Failure to follow these
instructions can cause serious damage to the unit or vehicle and may void
warranties.
Qualifications - The installer must have a firm knowledge of basic electricity,
vehicle electrical systems and emergency equipment.
Keep These Instructions - Keep these instructions in the vehicle or other safe place
for future reference. Advise the vehicle operator of the location.
Unpacking - Inspect contents for shipping damage. If found, alert carrier
immediately. Contents should include unit with microphone, mounting bracket w/ 2
bolts, microphone bracket with 2 screws, siren and light wiring harnesses with
connectors, and these instructions. Contact your supplier immediately if any
components are missing.
-2-
Installer Selectable Options (Jumper Settings)
The ST280 has several options that can be selected during installation. Jumpers on
the printed circuit board, inside the case, allow the installer to select these various
options. These options should be set before installation of the unit.
-
Auxiliary input polarity
Park Kill input polarity
Two-tone replacement of Thunder tone
Thunder Disable
Slide Switch Pursuit Siren Disable
Speaker (Audible Beep) Disable
8 second timed gun lock release (S4)
Cover Removal - Remove the
four Philip head screws located
on the back of the unit. DO
NOT REMOVE THE SCREWS
ON THE FRONT OF THE
UNIT! Slide the top cover off
the front face of the unit. Take
care not to damage the
microphone cord during this
procedure. This cover can be
removed completely from the
siren unit. Carefully slide the
cover over the microphone and
set it aside.
After the cover has been removed, find the location of the option jumpers (see the
diagram below).
Auxiliary Input Polarity - The auxiliary input (green wire) is normally activated
by applying a positive voltage to the wire. To activate by connecting to ground
(negative), move the jumper from the "AUX-POS" pins to the "AUX-NEG" pins.
.
-3-
Installer Selectable Options (continued)
Park Kill Input Polarity - The park kill (cutout) input turns off any siren tone
output when activated (i.e. vehicle shifted into park, door opened, etc.), and
remains off until a control on the siren is activated or changed. The wiring
diagram on page 8 shows two connection examples.
The park kill input is normally activated by connecting the gray wire to positive
voltage. To activate by connecting it to ground (negative) instead, move the jumper
from the "PK-POS" pins to the "PK-NEG" pins.
Auxiliary Input Function - The auxiliary input (green wire) allows activation by an
external source of either the Horn or the Manual push-button functions. This input is
usually wired into the vehicle horn switch. The wiring diagram on page 8 shows two
connection examples. NOTE: Permanent disconnection of the vehicle horn is NOT
recommended.
The siren is factory shipped with the auxiliary input option defaulted as the Horn
function (on only one of the "AUX" pins). To utilize the auxiliary input as the
Manual function instead of the Horn function, move the "AUX" jumper from one pin
onto both of the pins.
Two-Tone – The Thunder sound can be replaced by a Two-Tone sound by moving
the "TT" jumper from one pin onto both of the "TT" pins.
Thunder Disable - The Thunder function can be completely disabled by moving the
"TD" jumper from one pin to both pins. This will also disable the Two-Tone
function used when the manual button is pressed while the mode switch is in the
Thunder position.
Pursuit Disable - The farthest right slide switch position (L3) will normally
activate the siren output in the wail mode, along with all three light functions.
Automatic activation of the siren. If you prefer to NOT have the siren
automatically activated when the slide switch is moved to position three, move
Pursuit Disable jumper onto only one pin.
8 second timed gun lock
release (S4) - The amplifier
is shipped with the fourth
push button (S4) as a
standard on/off button. It
can be optionally selected to
stay activated for only 8
seconds when pressed. To
change button (S4) to a
timed unlock remove the
Gun Lock jumper and place
it only on one pin.
Speaker Disable (Audible beep disable) - The audible beep heard when the light
control buttons on the siren are pressed can be disabled. If you move the Speaker
Disable jumper from both pins onto only one pin, the audible beep will cease.
-4-
MOUNTING
SAFETY PRECAUTIONS
For the safety of the installer, vehicle operator, passengers and the community
please observe the following safety precautions. Failure to follow all safety
precautions and instructions may result in property damage, injury or death.
!!! WARNING !!!
DO NOT mount in air bag deployment area.
Devices should be mounted only in locations listed in SAE standard J1849.
Controls should be placed within convenient reach of the driver.
Assure clearances before drilling in vehicle.
To prevent internal damage, the mounting bolts must not enter case more
than 1/4".
Sound levels produced by attached speakers can cause permanent hearing loss.
Never operate this unit without adequate hearing protection for you and others
in the area. (OSHA 1910.95)
The ST280 siren may be mounted above the dash, below the dash, on a tunnel, or in
a rack with the mounting u-bracket provided. Choose a mounting location
convenient to the operator and away from any air bag deployment areas. Inspect
behind mounting area for clearance. Assure adequate ventilation to prevent
overheating. Consider wire routing and access to connections, as well as
microphone bracket placement. Install mounting bracket to vehicle using 1/4"
hardware (not supplied). Drill two 1/8" size holes, and install microphone clip
using the two screws provided with the clip.
ELECTRICAL CONNECTIONS
Electrical connections to the unit are made using removable connectors located on
the back. If the unit needs service the connectors can be easily unplugged from the
unit without unwiring the connector.
The power supply of the siren must be capable of delivering peak currents up to 50
amps for adequate short circuit protection and reliable operation. The preferred
source is directly at the vehicle battery. The unit is internally fused. A wiring
diagram on page 8 shows detail of how to wire the siren to the vehicle.
Wire Size and Termination - The wiring diagrams on pages 8 and 10 show the
minimum wire size used for each connection, along with recommended lead color.
If the wire is longer than 10 ft., then use the next larger wire size.
-5-
Please follow these guidelines when wiring the siren:
• Use only high quality crimp connectors.
• Make sure all connections are tight.
• Route wiring to prevent wear, overheating and interference with air bag
deployment.
• Use grommets and sealant when passing through compartment walls.
• Minimize the number of splices to reduce voltage drop.
• Ground connections should only be made to substantial chassis components,
preferably directly to the negative of the vehicle battery.
• Install and check all wiring before connection to vehicle battery.
Siren Wiring Connections:
Siren input and output connections are made on the back of the unit through a
12-pin connector and wiring harness.
3 2 1
6 5 4
9 8 7
12 11 10
Please review the Siren Wiring diagram on page 8 and make your connections
as follows:
BLACK: (Pins 2 & 5) Ground - Connect these leads to the negative of the
battery, or to a good chassis ground. You MUST connect both
leads if you are using two 100-watt speakers. Be sure to use
minimum size #14 AWG wire.
RED: (Pins 1 & 4) Power - Connect both leads to the positive side of the
battery, or to a high current power buss. You MUST connect both
leads if you are using two 100-watt speakers. A power relay may
also be used. Be sure to use minimum size #14 AWG wire.
YELLOW: (Pin 11) Ignition Switched Power - Connect to +12VDC through
a switched power supply (possibly ignition). This will turn the
siren on and off. Be sure to use minimum size #18 AWG wire.
ORANGE: (Pin 9) Backlight Power - This lead supplies power for the
backlighting of the siren. Connect it to +12VDC from the dash
lights, parking lights or other switched source. Be sure to use
minimum size #18 AWG wire.
BROWN: (Pins 7 & 12) Speaker Output - Connect one lead to each terminal
or lead of the speaker. Be sure to use minimum size #14 AWG
wire. If connecting a second speaker in parallel, you must
observe the polarity of the speakers (phasing). Be sure that the
positive terminals of both speakers are connected together to the
same brown wire from the siren. In which case, the negative
terminals of both speakers would also be connected together to the
other brown wire.
-6-
Siren Wiring Connections (CONTD):
Optional Connections:
BLUE: (Pins 3 & 6) Input From Radio - Used for radio repeat. Connect
one blue lead to each terminal of the radio speaker or output
connector of the radio. Most radio outputs are isolated, in which
case polarity would not be important. Radios with polarity
sensitive outputs should be connected w/ the blue wire from pin 6
to the positive radio output, and the blue wire from pin 3 to the
negative radio output. Use #18 AWG wire.
GREEN: (Pin 10) AUX or Horn Ring - Used for remote Manual (or Air
Horn) control. Connect to the horn ring circuit or some other
remote switch. Circuit may be positive or negative with proper
jumper selection. See INSTALLER-SELECTABLE OPTION
section (page 3 and 4) for jumper details.
NOTE: Cut lead short if not used & insulate w/ electrical tape.
GRAY: (Pin 8) Park Kill (Cut-off) – This wire is used to de-activate the
siren when the vehicle is exited. Connect to dome light or added
door switch. Circuit may be positive or negative with proper
jumper selection. See INSTALLER-SELECTABLE OPTION
section (page 4) for jumper details.
NOTE: Be sure to cut lead short if not used and insulate with
electrical tape.
Testing -
Test all siren functions after installation to assure proper
operation. Test vehicle operation to assure no damage to vehicle.
-7-
-8-
SIREN
AMPLIFIER
VEHICLE
HORN
12 - Brown (#14 AWG)
11 - Yellow (#18 AWG)
10 - Green (#18 AWG)
9 - Orange (#18 AWG)
8 - Gray (#18 AWG)
7 - Brown (#14 AWG)
6 - Blue (#18 AWG)
5 - Black (#14 AWG)
4 - Red (#14 AWG)
3 - Blue (#18 AWG)
2 - Black (#14 AWG)
1 - Red (#14 AWG)
Negative
Horn
Switch/Relay
+12 VDC
Selected
+
+
RADIO
Door Switch
Dome
Light
Positive Switching PK
Jumper Selected
SPEAKER 1
11 OHMS
Added Door
Switch
Jumper Selected
OR Negative Switching PK
+
+12 VDC
+12 VDC
SPEAKER 2
11 OHMS
Backlighting Switch (Connect to
Dash Lights, Parking Lights, Etc.)
ON/OFF Power Switch for Siren
(Possibly Connected to Ignition)
VEHICLE
HORN
+12 VDC
Connect the Blue wires to
the terminals of speaker or
to the output jack of radio
AUX
OR Switching
Horn Jumper
BATTERY
+
Positive
Switching AUX
Horn Jumper
Selected
Horn
Switch/Relay
+12 VDC
Siren Wiring Diagram
Light Wiring Connections:
Red: (8 AWG) +12VDC Power - The two large red wires exiting the back
of the siren should be connected to +12VDC. They will supply the
power to the lights hooked up to the 9-pin connector. You must
connect BOTH red wires.
9-Pin Connector
(REFER TO THE LIGHT WIRE DIAGRAM ON THE NEXT PAGE FOR PROPER WIRE SIZES!)
The electrical connections for slide
switch outputs, and for the push button
light functions outputs are located on
the square 9-pin connector (part #SWH49) on the back of the siren.
3
2
1
6
5
4
9
8
7
Red: (Pin 1) Ignition Switched Power (+12 VDC) – Supplies power to the
relays and logic and will deactivate all functions to prevent battery
drain when the vehicle is shut off.
Black: (Pin 2) Ground – Grounds the relays and logic
Orange: (Pin 3) L1 Output – Output power to lights activated when the slide
switch is in the 1st, 2nd, or 3rd position.
Yellow: (Pin 4) S4 Output - Output power to lights controlled by S4 button.
Green: (Pin 5) S2 Output - Output power to lights controlled by S2 button.
Blue: (Pin 6) S3 Output - Output power to lights controlled by S3 button.
Violet: (Pin 7) S1 Output Output power to lights
controlled by S1 button.
Gray: (Pin 8) L2 Output –
Output power to lights
activated when the slide
switch is in the 2nd or 3rd
position.
Thunder
Radio
Yelp
Radio
Manual
Horn
Wail
L
H
PA
HF
PA
L1
Manual
L2
Speakers 1
2
L3
S1 S2 S3 S4
White: (Pin 9) L3 Output – Output power to lights activated when the slide
switch is in the 3rd position.
Testing - Test all siren and light functions after installation to assure proper
operation. Test vehicle operation to assure no damage to vehicle.
LABEL INSERTION: Once the wire connections
have been made to S1 through S4, labels can be
inserted into the switches. The product is shipped
with 30 different labels for these push buttons.
Select the desired label inserts (provided). Insert
the label into each button and tuck it under the lip
of the switch.
-9-
-10-
AMPLIFIER
20A
20A
20A
20A
20A
20A
20A
Red (#8 AWG)
Red (#8 AWG)
BATTERY
+
PIN 3 - ORANGE (#12-16 AWG) - L1
PIN 2 - BLACK (#14-18 AWG) - GROUND
PIN 1 - RED (#14-18 AWG) - LOGIC
PIN 6 - BLUE (#12-16 AWG) - S3
PIN 5 - GREEN (#12-16 AWG) - S2
PIN 4 - YELLOW (#12-16 AWG) - S4
Lights to be activated by
Pushbutton Switch S3
Lights to be activated by
Pushbutton Switch S4
Audio/Visual
Warning Device
Audio/Visual
Warning Device
Connect to Ignition
Switched Power
(+12 VDC)
Lights to be activated by
Pushbutton Switch S2
Audio/Visual
Warning Device
Lights to be activated by
Pushbutton Switch S1
Audio/Visual
Warning Device
Lights to be activated when
Slide Switch is in Positions 1, 2, & 3
Audio/Visual
Warning Device
Audio/Visual
Warning Device
Audio/Visual
Warning Device
PIN 9 - WHITE (#12-16 AWG) - L3
PIN 8 - GRAY (#12-16 AWG) - L2
PIN 7 - VIOLET (#12-16 AWG) - S1
Lights to be activated when
Slide Switch is in Positions 2 & 3
Lights to be activated when
Slide Switch is in Position 3
Lighting Connection Wiring Diagram
OPERATION
GENERAL
This unit is designed for easy operation under the stress associated with high-speed
pursuit. Most siren functions are accessible with one simple motion without
repetitive activation of switches or automatic timed switching that can interfere
with desired operation.
LIGHT SLIDE SWITCH
The slide switch is designed for quick pursuit mode operation. The far left position
(OFF) will not activate any outputs. Position 1 will activate the first set of lights
(connected to L1). Position 2 activates both the first and second set of lights
(connected to L1 and L2). Position 3 activates all three sets of lights (connected to
L1, L2 and L3), along with the siren. Each output is protected with a 20A fuse.
Pursuit Mode - Position 3 (farthest right) is generally used for the full pursuit
mode. It allows for a quick procedure that will activate both the
lights and the siren in one motion. When the slide switch is
moved to Position 3, all three sets of lights will turn on and the
siren will activate into the Wail mode.
The siren may be disabled in the pursuit mode during installation
if desired. (Refer to the section on page 4 under INSTALLER
SELECTABLE OPTIONS).
LIGHT PUSH BUTTON SWITCHES
Four push button switches are
provided to enable four separate
functions. The far left push button
(possibly L. Alley) will control the
item(s) connected to S1. The
second push button (possibly R.
Alley) will control the item(s) connected to S2. The third push button (possibly
Takedown) will control the item(s) connected to S3. The fourth push button will
control the item(s) connected to S4 (possibly gun lock). Each of these four outputs is
protected with a 20A fuse.
-11-
SELECTOR SWITCH
Whenever +12VDC is applied to the yellow wire, the siren will be "on" in the
selected mode. The rotary selector switch controls the primary operating function
of the siren.
Thunder - Ultra-fast changing tone
used for maximum attention.
Yelp - A rapidly changing tone
used in congested areas.
Wail - A slower changing tone used on
highways.
HF (Hands Free) - Also known as Horn Ring Cycler, allows the user to cycle
through Wail, Yelp, Thunder and Manual by repeatedly pressing the
horn or other switch connected to the AUX input. Operating any
other switch resumes normal operation. Please note that this mode
disables the Manual push-button selection when a Wail, Yelp, or
Thunder tone is cycled to.
Manual - A silent mode that allows push-button Manual, push-button Horn,
and Public Address operation. The siren output winds down when
the Manual momentary rocker switch is released.
PA - A silent mode that allows push-button Manual, push-button Horn
and Public Address operation. The siren output terminates
immediately when the Manual momentary rocker switch is released.
Radio - Also known as Radio Repeat, this function amplifies a radio speaker
input for re-broadcast outside the vehicle. The PA remains
functional, but no siren tones are available in this position.
-12-
MANUAL / HORN MOMENTARY ROCKER SWITCH
The front panel of the ST280 contains a momentary rocker switch that operates the
Manual function when the left side is depressed and the Air Horn when the right
side is depressed.
Manual – Pressing the left side of this momentary rocker
switch provides a generally quicker changing tone when
the selector switch is in the Wail, Yelp or Thunder
positions. (See table on page 12). These quicker tones are
used at intersections and very highly congested areas.
Pressing the button once changes to the next faster tone
and pressing again changes the tone back to original tone.
With the selector switch in the Manual, PA or Hands Free
position this switch provides a manually activated Wail
siren tone while the button is being held. This is used to
momentarily alert motorists or in low noise areas.
Optional operation includes replacement of the Thunder tone with Two-Tone or
disabling the Thunder tone entirely. These options are selected during installation
and may be governed by State or Local laws.
With Rotary Switch
in this Position:
THUNDER
YELP
WAIL
HF (Hands Free)
Pressing the MANUAL Rocker Switch
Does This:
Toggles the Output to TWO-TONE
Toggles the Output to THUNDER
Toggles the Output to YELP
Creates a manual WAIL tone while button is being
held that sweeps down when the button is released.
MAN (Manual)
Creates a manual WAIL tone while button is being
held that sweeps down when the button is released.
PA
Creates a manual WAIL tone while button is being
held that stops immediately when the button is
released.
(NOTE: THUNDER and TWO-TONE may be optionally swapped or disabled via
program jumpers. See the section on page 4 under INSTALLER-SELECTABLE
OPTIONS.)
Air Horn – Pressing the right side of this momentary rocker switch provides a
simulated air-horn tone while pressed. This can be used to either replace, or to
supplement the normal vehicle horn and is useful at intersections or in high noise
areas. This tone will override all other siren tones.
-13-
VOLUME CONTROLS
The radio repeat volume (Radio) control is recessed in
the upper left hand corner of the front face. This
should be set when the vehicle is parked. First set the
volume level of the vehicle's two-way radio to its
normal operating volume. Adjust the siren's rotary
selector switch into the RADIO position. Insert a
small, flat blade screwdriver into the RADIO volume
adjustment port. Turn clockwise direction to increase
the sound level.
The PA volume (PA Vol.) control is provided for public
address volume. It is located in the upper right hand corner
of the front face. This should be set when the vehicle is
parked. Set the PA volume to the maximum level with no
feedback (squeal).
MICROPHONE
The attached noise-canceling microphone is used for public
address operation and overrides any siren tone when its
push-to-talk (button on the side) is pressed.
AUXILIARY INPUT
During installation an auxiliary input may be connected to the vehicle horn ring or
other switching device. It provides the same operation as pressing the Horn button
or optionally (via internal jumpers) the Manual rocker switch.
PARK KILL (CUTOUT)
During installation, the Park Kill input may be connected to a door switch. It will
automatically turn off any siren tone when the door is opened. The siren tone will
continue to be cut off even when the door is closed. Changing any switch or input
will restore normal function.
SPEAKER DIAGNOSTICS
There are two diagnostic LED’s located BENEATH THE manual/Horn
rocker switch.. These LED’s will only turn on while a tone is trying to be
generated. Status of the speakers are indicated as follows:
Steady - Speaker is connected and operating
properly.
Flashing - There is an electrical short in the
speaker or wires to the speaker.
Off - No speaker is connected, or
- The siren is not activated to output a
tone to the speaker, or
- The speaker or wire connection is loose
or is electrically open
-14-
SERVICE
This unit is designed to provide years of reliable service under even the worst
conditions. Many times there may appear to be a problem with the unit when the
true problem is in the speaker(s) or improper installation. The following chart
shows typical symptoms and possible causes.
TROUBLESHOOTING
Symptom
No power
No siren tone PA works
No siren tone No sound
No PA
Distorted siren
sound
Intermittent
siren tone
Horn function
or
Manual or
Thunder stuck
on
No Radio
No or Low
Radio
Wrong siren
tone
Thunder not
working
Possible Cause
Yellow wire is not powered
Connector loose
Siren 20A fuse blown
Loose connection at power source
High voltage protection
Low voltage protection
Microphone button stuck
Park Kill polarity option set wrong
Park Kill activated
Bad speaker or speaker wiring
PA volume not set properly
Speaker assembly loose
Intermittent Aux. Input connection
Low or high vehicle voltage
High voltage protection
Low voltage protection
Microphone button activation
Circuit breaker in supply
connection
Shorted speaker or speaker wire
Manual/Horn rocker switch stuck
Aux. Input improperly connected
Aux. Input Polarity Option set
wrong
Unit not connected to radio
Radio volume too low
Radio outputs not isolated and
polarity
hooked up backwards
Two-Tone option jumper installed
Aux. Input set to wrong function
Thunder disabled
Check
Is yellow wire connected to switched +12VDC?
Check connector
Is power hooked up backwards? Positive ground vehicle?
Is an external fuse or circuit breaker used?
Are the negative leads connected to a good ground?
The input voltage must be less than 16 volts.
The input must be greater than 10V with the siren turned on.
Does microphone button release properly?
Is the PK jumper option properly configured?
Does the siren work when Park Kill input is disconnected?
Check for a short.
Check for an open.
Have you tried turning the PA volume control?
Is the speaker bell or tip loose?
Is the Aux. Input used and wired properly?
Input voltage must be between 10-16 volts while siren is on.
Is the vehicle voltage regulator working properly?
Is the connector tight on the back of the unit? Is there a loose
connection on a power lead? The input must be greater
than 10V with the siren turned on.
Is something lying on the microphone?
Is a circuit breaker used with at least a 50A rating?
Does the speaker have water damage, or is a wire pinched?
Does the switch return fully when released?
Is the Aux. Input used and wired properly?
Is the AUX jumper option properly configured?
Is the radio connected properly to the unit?
Can you hear the radio in the vehicle?
Have you tried turning the Radio volume control?
Are the radio wires connected to the correct polarity from the
radio output?
Is the TT jumper option properly configured?
Is the AUX jumper option configured properly?
Is the TD jumper option configured properly?
-15-
SPECIFICATIONS
Input Voltage
Input Current
Standby Current
Audio Frequency
Audio Output
Output Power
Siren Frequency
High Voltage Protection
Short Circuit Current
Operating Temperature
Siren Controls
Diagnostic Indicators
Light Controls
Light Output Ratings
Siren Connections
(12-Pin Connector)
Light Control Connections
Size
Shipping Weight
10 - 16 VDC (negative ground)
8.0 Amps @ 13.6 VDC (single 100W speaker)
16.0 Amps @ 13.6 VDC (dual 100W speakers)
Less than 150 mA
200Hz - 10 kHz + 3db
40 watts @13.6 VDC
105 WATTS RMS MAX. (15.0 VDC – single 100W speaker)
180 WATTS RMS MAX. (15.0 VDC –dual 100W speakers)
675Hz - 1633Hz
16 - 18 VDC will cause siren output to cease, resumes at normal voltage
50 AMPS (supply circuit must be capable of supplying this)
-15° F to +140°F
7-position rotary switch (Radio, PA, Manual, HF, Wail, Yelp, Thunder)
Momentary Manual/Horn rocker switch
Auxiliary input (jumper programmable) for positive or negative horn
-Remote Manual or Hands Free operation
Park Kill input (jumper programmable) for positive or negative activation
Thunder (and Two-Tone) disable (jumper programmable)
Two-Tone activation (swaps modes with Thunder) (jumper programmable)
Two LED indicators provide diagnostic feedback, one for each speaker
4 push-on/push-off buttons (1 programmable 8 sec. time delay)
4-position slide switch (Off, L1, L1 & L2, L1 & L2 & L3 & Wail)
20A fuse on each of the 7 light outputs. (4 push buttons, 3 slide positions)
Detachable, 12-pin, positive locking connector with pigtail leads.
(2) Positive, (2) Negative, (1) Activation (on/off), (1) Backlighting,
(2) Speaker, (2) Radio, Auxiliary, Park Kill
+12 – two 8 AWG leads
L1, L2, L3 (Slide Switch) and S1, S2, S3, S4 (Push buttons) 9-pin connector
6" Wide, 6-1/2" Deep, 3" High
6 lbs.
LIMITED WARRANTY
Galls warrants this new product to be free from defects in material and workmanship, under
normal use and service, for a period of seven (7) years from the date of delivery to the first
user-purchaser.
During this warranty period the obligation of Galls is limited to repairing or replacing, as
Galls may elect, any part or parts of such product which after examination by the
manufacturer is determined to be defective in material and/or workmanship.
This warranty does not cover labor charges for removal or re-installation of the product.
Fuses and lamps are not covered under this warranty.
This warranty does not extend to any unit that has been subjected to abuse, misuse, improper
installation or which has not been adequately maintained, nor to units which have problems
related to service or modification at any facility other than the manufacturer.
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 GALLS AND/OR THE
MANUFACTURER BE LIABLE FOR ANY LOSS OF PROFITS OR ANY INDIRECT OR
CONSEQUENTIAL DAMAGES ARISING OUT OF ANY SUCH DEFECT IN MATERIALS
OR WORKMANSHIP.
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No Hassle Guarantee
Providing quality products to professionals who
protect and serve the public is our core purpose.
If you aren’t satisfied with a newly purchased item, simply return
it to us so we can repair it, replace it or refund your money.
To Return Merchandise…
You don't need to call us if you have a problem with the
merchandise you've received. Simply follow the instructions on
the reverse side of the packing slip that comes with your order.
Galls provides a preaddressed label for you to affix to the
package. If you don't have your packing slip, place the item in
the original packaging (along with a brief explanation for the
return), then place in a second box to prevent damage. To assure
speedy handling, please ship it directly to:
Galls, Inc. Returns Department
1340 Russell Cave Road, Lexington, KY 40505
If you have any questions concerning this or
any other Gall's product, please contact
our Customer Service Department at
(800) 477-7766.
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