ST240 - SS700

ST240 - SS700
Street Thunder
ST240
SIREN AMPLIFIER
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
REV. - 11/04/03
PLITSTR312
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.
13-
INSTALLATION INFORMATION
SPECIFICATIONS
SERIAL NO:
MODEL:
ST240
Input Voltage
10 - 16 VDC (negative ground)
PURCHASE DATE:
Input Current
8.0 Amps @ 13.6 VDC (single 100W speaker)
16 Amps @ 13.6 VDC (dual 100W speakers)
Less than 150 mA
200Hz - 10 kHz + 3db
40 watts @13.6 VDC (single 100W speaker)
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 Phaser) (jumper programmable)
Horn Ring Transfer input/output
Two LED indicators provide diagnostic feedback, one for each speaker.
Detachable, 12-pin, positive locking connector with pigtail leads.
(2) Positive, (2) Negative, (2) Speaker, (2) Radio, Auxiliary, Park Kill, Horn
output
6" Wide, 6 -1/2" Deep, 2 -1/2" High
6 lbs.
DEALER:
_____ Two-Tone Enabled
INSTALLATION DATE:
_____ Thunder/Man Auxiliary Override
Standby Current
Audio Frequency
Audio Output
Output Power
Siren Frequency
High Voltage Protection
Short Circuit Current
Operating Temperature
Controls
Diagnostic Indicators
Connections
(12-Pin Connector)
Size
Shipping Weight
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.
12
OPTIONS
INSTALLER:
_____ Thunder Disabled
Model and serial number located on bottom of unit
TABLE OF CONTENTS
GENERAL DESCRIPTION
INSTALLATION
INSTALLER -SELECTABLE OPTIONS
MOUNTING
ELECTRICAL CONNECTIONS
WIRING DIAGRAM
WIRING CONNECTIONS
OPERATION
GENERAL
SELECTOR SWITCH
MANUAL/HORN ROCKER SWITCH
VOLUME CONTROLS
MICROPHONE
AUXILIARY INPUT
PARK KILL
SPEAKER DIAGNOSTICS
SERVICE
TROUBLESHOOTING
SPECIFICATIONS
LIMITED WARRANTY
RETURN
1
2-6
2-3
4
4-6
5
6
7-9
7
7
8
9
9
9
9
9
11-13
11
12
12
13
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.
GENERAL DESCRIPTION
The ST240 Siren Amplifier is a premium 200W unit designed for dual 100W
speaker use. 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 manual push-button is provided for pushon/push-off 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. 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.
-1-
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/
hardware, microphone bracket with 2 screws, wiring harness with connector, and
these instructions. Contact your supplier immediately if any components are
missing.
Installer Selectable Options (Jumper Settings)
The ST240 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.
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 back and away from the
front face of the unit. This
cover can be removed
completely from the siren unit.
CAUTION!!! DO NOT
OVER-TIGHTEN SCREWS.
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
Loose connection at power source
No siren tone - PA High voltage protection
works
Low voltage protection
Microphone button stuck
Park Kill polarity option set wrong
Park Kill activated
No siren tone - No Bad speaker or speaker wiring
sound
No PA
PA volume not set properly
Distorted siren
Speaker assembly loose
sound
Intermittent Aux. Input connection
Low or high vehicle voltage
Intermittent siren High voltage protection
tone
Low voltage protection
Horn function or
Manual or
Thunder stuck on
No Radio
No or Low Radio
Wrong siren tone
After the cover has been removed, find the location of
the option jumpers (see diagram below).
-2-
Possible Cause
Yellow wire is not powered
Connector loose
Siren 20A fuse blown
Thunder not
working
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?
-11-
This page intentionally left blank.
Installer Selectable Options (continued)
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.
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
5 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 5 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.
-10-
-3-
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)
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 ST240 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.
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)
ELECTRICAL CONNECTIONS
Electrical connections to the unit are made using a removable connector located on
the back. If the unit needs service the connector can be easily removed without
unwiring the connector.
The power supply of the unit 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 the next page shows detail of how to wire the siren to the vehicle.
Wire Size and Termination - The wiring diagram on the previous page shows 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. 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.
-4-
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 in the
lower left hand corner of the front panel.
These LED's will only turn on while a tone is
trying to be generated.
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 has come loose or is electrically open
-9-
-8-
Added Door
Switch
Negative Switching PK
Jumper Selected
Connect the Blue wires to
the terminals of speaker or
to the output jack of radio
Dome
Light
RADIO
Door Switch
+12 VDC
+
SPEAKER 1
11 OHMS
Positive Switching PK
Jumper Selected
OR
+
SPEAKER 2
11 OHMS
+12 VDC
Backlighting Switch (Connect to
Dash Lights, Parking Lights, Etc.)
+
4 - Red (#14 AWG)
3 - Blue (#18 AWG)
2 - Black (#14 AWG)
1 - Red (#14 AWG)
8 - Grey (#18 AWG)
7 - Brown (#14 AWG)
6 - Blue (#18 AWG)
5 - Black (#14 AWG)
12 - Brown (#14 AWG)
11 - Yellow (#18 AWG)
10 - Green (#18 AWG)
9 - Orange (#18 AWG)
-5-
BATTERY
Negative
Switching AUX
Horn Jumper
Selected
Horn
Switch/Relay
+
+12 VDC
OR
Positive
Switching AUX
Horn Jumper
Selected
SIREN
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 low noise
areas. This tone will override all other siren tones.
Horn
Switch/Relay
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 INSTALLER-SELECTABLE OPTIONS on pages 2-3.)
VEHICLE
HORN
With Rotary Switch
in this Position:
THUNDER
YELP
WAIL
HF (Hands Free)
+12 VDC
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.
VEHICLE
HORN
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 below). 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.
ON/OFF Power Switch for Siren
(Possibly Connected to Ignition)
The front panel of the ST240 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.
+12 VDC
MANUAL / HORN MOMENTARY ROCKER SWITCH
OPERATION
Wiring Connections:
BLACK LEADS: Connect ONE black wire only when using a single 100W driver
speaker. You MUST connect BOTH black wires when using two 100W driver
speakers. Connect to the negative of the battery, or to a good chassis ground. Be
sure to use minimum size #14 AWG wire.
RED LEADS: Connect ONE red wire only when using a single 100W speaker. You
MUST connect BOTH red wires when using two 100W driver speakers. Connect
to the positive of the battery, or to a high current power buss. A power relay may
also be used. Be sure to use minimum size #14 AWG wire.
YELLOW LEAD: 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 LEAD: 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 LEADS: 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 from the siren.
Optional Connections:
BLUE LEADS: 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 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 LEAD: Used for remote Manual control. Connect to the horn ring
circuit or a remote switch. Circuit may be positive or negative with proper
jumper selection. See INSTALLER-SELECTABLE OPTION section (page
2) for jumper details.
NOTE: Cut lead short if not used & insulate w/ electrical tape.
GRAY LEAD: Used for Park Kill (Cut-off). Connect to dome light or added
door switch. Circuit may be positive or negative with proper jumper
selection. See INSTALLER-SELECTABLE OPTION section (page 2) 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.
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.
SELECTOR SWITCH
Whenever +12VDC is applied to the yellow
wire, the ST240 will be "on". 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.
-6-
-7-
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