Page 1
Carson Manufacturing Co., Inc.
5451 North Rural Street
Indianapolis, IN 46220
Phone: (888) 577-6877 Fax: (317) 254-2667
www.carsonsirens.com
SC-409-10
SIREN AMPLIFIER
WITH LIGHT CONTROL
INSTALLATION AND OPERATING
INSTRUCTIONS
Carson is a trademark of Carson Manufacturing Company, Inc.
Sound Hazard
- Sound level from siren speaker (>120dBA @ 10 feet) may cause hearing damage.
Do not operate siren without adequate hearing protection for you and anyone in immediate vicinity.
(Ref. OSHA 1910.95 for occupational noise exposure guidelines)
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Page 2 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
TABLE OF CONTENTS
GENERAL DESCRIPTION .................................................................................... 3
SPECIFICATIONS ................................................................................................. 3
INSTALLATION ..................................................................................................... 4
SAFETY PRECAUTIONS ..................................................................................4
UNPACKING .....................................................................................................4
MOUNTING ....................................................................................................... 4
OPTION SWITCHES ......................................................................................... 4
ELECTRICAL CONNECTIONS ......................................................................... 5
AMPLIFIER CONNECTIONS ............................................................................6
LIGHT CONTROL CONNECTIONS .................................................................. 7
LEVER AND AUXILIARY CONTROL SWITCH PROGRAMMING ....................9
OPERATION ........................................................................................................ 11
GENERAL ........................................................................................................11
POWER ON/OFF ............................................................................................. 11
SIREN CONTROLS .........................................................................................11
Rotary Switch ..............................................................................................11
Manual Button .............................................................................................11
Horn Button .................................................................................................11
Auxiliary Input (Optional) ............................................................................11
PA ............................................................................................................... 12
Cutout Input (Optional) ...............................................................................12
Timed Override (TO) (Optional) ................................................................12
Sweep/Intersection Function (SWP/INT) (Optional) .................................12
LIGHT SYSTEM CONTROLS .........................................................................12
Lever Switch ...............................................................................................12
Automatic Siren ..........................................................................................12
Auxiliary Control Switches ..........................................................................12
Auxiliary Control Switch Legends ...............................................................12
Video Trigger Output ..................................................................................13
Alert ............................................................................................................ 13
Light Control Diagnostics ............................................................................13
SERVICE ............................................................................................................. 14
PROBLEMS ......................................................................................................... 14
PARTS ................................................................................................................. 15
RETURN .............................................................................................................. 16
LIMITED WARRANTY .........................................................................................16
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.
Carson Manufacturing Co., Inc. 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.
Carson Manufacturing Co., Inc. 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.
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SC-409-10 Installation and Operating Instructions Page 3 of 16
CP4958A 11/10/05
GENERAL DESCRIPTION
The SC-409 Light Control/Siren is a premium unit designed for single or dual 100W speaker use.
The primary operating modes are Radio, Cycler, Standby, Yelp, Wail, and Phaser. A Noise Canceling PA Override and push-button Horn Override are available in all modes except Radio. A
push-button is provided for toggling between Wail, Yelp, and Phaser tones, and Manual siren
control in silent modes. The Phaser tone can be optionally replaced by Two-Tone or disabled
entirely. Auxiliary input is provided for connection to horn ring circuit or switch. A latching siren
cutout input is provided for connection to a door switch, etc. to stop siren tones when exiting the
vehicle. PA volume control on the front panel while Radio volume control is on rear panel. The
front panel is backlit with LED's for night visibility. The siren circuits utilize short circuit, high voltage, and reverse polarity protection systems for maximum service life. Output indicator light on
face for siren output diagnostics.
The SC-409 also provides a 4-position lever switch with LED indicators for primary lighting system
control of up to 60 amps total and automatic siren tone in last position. Six programmable lighted
push-button switches with replaceable legends provide auxiliary lighting or other device control up
to 20 amps per switch. Each output fused and monitored with visual and audible indicators for
diagnostics. An alert periodically sounds (may be disabled) when outputs are on to help prevent
leaving lights on unintentially. A video camera trigger output is activated with the lever switch or
programmed auxiliary switches.
SPECIFICATIONS
Siren Section
Input Voltage 9 - 16 VDC (negative ground)
Input Current 8 AMPS (@14 VDC - single 100W speaker)
16 AMPS (@14 VDC - dual 100W speakers)
Standby Current Less than 300 ma
Audio Frequency 200Hz - 10 kHz + 3db
Audio Distortion Less than 3% (@1 kHz - single 100W speaker)
Audio Output 40 watts (@14 VDC - single 100W speaker)
Audio Input 400 ohms + 10%
Output Power 105 WATTS RMS MAX. (15 VDC - single 100W speaker)
180 WATTS RMS MAX. (15 VDC - dual 100W speakers)
Siren Frequency 700Hz - 1500Hz (Two-Tone and Horn = 435 & 585Hz)
Tones / Cycle Rates Horn Wail Yelp Phaser Two-Tone
Cycle Rates 109 CPS 13 CPM 190 CPM 15 CPS 60 CPM
High Voltage
Protection
16 - 18 VDC will cause siren output to cease, resume at normal voltage
Short Circuit Current 50 AMPS (supply circuit must be capable of supplying this)
Operating Temp. -15° F to +140°F
Controls 6-position rotary mode switch (Radio, Cycler, Standby, Yelp, Wail, and Phaser).
Momentary push-button Horn switch.
Momentary push-button Manual/Tone toggle switch.
Enable input (positive) to turn on unit.
Auxiliary input programmable for positive or negative operation.
Cutout input programmable for positive or negative latching cutout operation.
Internal DIP switch option selectors.
Connections
(Removable 12-Term
Block)
(2) Positive, (2) Negative, (2) Speaker, (2) Radio, Enable, Auxiliary, Cutout
Also location for Video output associated with light controls.
Light Control Section
Controls 4-position lever switch with position 3 siren activation and LED indicators
6 - on/off lighted push-button switches with replaceable legends
Current (Lever Switch) 20 AMPS per circuit, 60 AMPS total
Current (Aux. Sw.) 20 AMPS per switch, 80 AMPS total
Connections Lever Switch - (1) #10 AWG input (up to #6 AWG), (3) screw terminal outputs
Aux. Switches - (1) #10 AWG input (up to #6 AWG), (6) screw terminal outputs
General
Size 6-1/8" Wide, 8" Deep, 2-3/4" High
Weight 6 LBS.
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Page 4 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
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 dam-
age to the unit or vehicle and may void warranties.
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.
Qualifications - The installer must have a firm knowledge of basic electricity, vehicle electrical
systems and emergency equipment.
Mounting - Mount the unit for easy access by the vehicle operator. DO NOT mount in air bag
deployment area. Assure clearances before drilling in vehicle.
Wiring - Use wiring capable of handling the current required. Make sure all connections are tight.
Route wiring to prevent wear, overheating and interference with air bag deployment. Install and
check all wiring before connection to vehicle battery.
Testing - Test all siren functions after installation to assure proper operation. Test vehicle operation to assure no damage to vehicle.
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 attached microphone, mounting bracket, microphone bracket with screws, mounting bolts, connectors and these instructions. Contact supplier immediately if any components are
missing.
MOUNTING
The mounting bracket supplied can be installed above or below the unit. 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).
If mounting in a rack or console, make sure that mounting bolts do not enter case more than 1/4".
OPTION SWITCHES
Various options may be selected by turning on
or off DIP switches internally mounted on the
printed circuit board inside the case.
Accessing Option Switches - Remove the
12-Pin plug to prevent shorting then remove
the case cover by removing two screws at the
bottom rear corners of the unit.
SWA-1 (CUT_P) Cutout Input Polarity - The
cutout input is normally activated by positive.
Turn switch off to activate with negative.
SWA-2 (AUX_P) Auxiliary Input Polarity - The auxiliary input is normally activated by positive.
Turn switch off to activate with negative.
SWA-3 (TO) Timed Override - While in Wail, Yelp, or Phaser mode, momentarily pressing the
Manual push-button will toggle between tones overriding the Wail, Yelp, or Phaser tone. With this
option selected (turn on switch) the unit automatically goes back to the previous tone after 10
seconds without having to press Manual push-button again. In summary, press Manual button
once to override tone, then unit automatically goes back to previous tone.
SWA-4 (SWP) Sweep/Intersection Function (SWP/INT) - While in Wail, Yelp, or Phaser mode,
momentarily activating the auxiliary input will change the unit into sweep and intersection function.
See OPERATION section for further details. Turn this switch on to enable this function.
Sound Hazard
- Sound level from siren speaker (>120dBA @ 10 feet) may cause hearing damage.
Do not operate siren without adequate hearing protection for you and anyone in immediate vicinity.
(Ref. OSHA 1910.95 for occupational noise exposure guidelines)
SIDE VIEW COVER REMOVED
A - SWITCHES (SWA)
B - SWITCHES (SWB)
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SC-409-10 Installation and Operating Instructions Page 5 of 16
CP4958A 11/10/05
SWA-5 (T-T) Two-Tone - Two-Tone replaces Phaser tone by turning this switch on.
SWA-6 (P_I) Phaser Inhibit - Phaser and Two-Tone tones are disabled by turning this switch on.
SWA-7 (H_I) Horn Inhibit - Horn tone is disabled by turning this switch on.
SWA-8 (SM) Short Manual - The Manual siren tone will normally die out and stop when Manual
push-button is released. Turn this switch on to have the Manual siren tone stop immediately.
SWA-9 (IN_ON) Instant ON - The Enable input is normally required to turn on the unit. Turning
this switch on allows the lever switch to turn on the unit without the Enable input.
SWA-10 (AUT_S) Automatic Siren Disable - The Automatic Siren feature on the lever switch
may be disabled by turning this switch off.
SWB-1 (NPO) Non-Progressive Override - See OPERATION section. Turn this switch on to
override non-progressive lever switch in position 3.
SWB-2 (NPL) Non-Progressive Lever - See OPERATION section. Turn this switch on for a nonprogressive lever switch.
SWB-3 (PRG) Program Mode - See LEVER AND AUXILIARY CONTROL SWITCH PROGRAMMING section. Do not move this switch until ready to program.
SWB-4 (ALRT) Alert Disable - Turn this switch on to disable the alert feature.
SWB-5 (TMR) Timer - Normally the timed momentary auxiliary output is on for 10 seconds. Turn
this switch on for a 20 second timed momentary.
ELECTRICAL CONNECTIONS
Electrical connections to the unit are made using terminal block plugs and screw terminals located
on the back. A label on the unit identifies each terminal function. You should install the plug on
the unit before wiring. If the unit needs service the plugs can be easily removed without unwiring.
The power supply for the amplifier (12-P plug) 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 amplifier is fused.
Attach leads by stripping 3/8", inserting into plug and clamp by tightening screw. Make sure the
screw is tight and the wire can't be pulled out.
Failure to adequately tighten the screw can result in improper operation or burning the
connector and wire.
Wire Size and Termination - The diagram shows the minimum wire size used for each connec-
tion, along with recommended lead color. If the wire is longer than 10 ft. use the next larger wire
size. Use only high quality crimp connectors for installation on the vehicle.
Unit Enable Input Connection - This is like a power switch for the entire unit. Connect to a positive circuit controlled by the vehicle ignition switch, usually a terminal at the vehicle fuse panel.
Permanent power connection is not recommended as this keeps unit on unattended and may
drain battery. The lever switch may also be setup like a power switch for the entire unit. See
Instant On under OPTION SWITCHES section.
Auxiliary Input Connection - The Auxiliary Input allows activation by an external source of either
the Horn or other function. See OPTION SWITCHES section for polarity selection.
NOTE: Permanent disconnection of the vehicle horn is NOT recommended.
Cutout Input Connection - The Cutout Input turns off any siren tone output when activated, and
remains off until a control is activated or changed. See OPTION SWITCHES section for polarity
selection.
Radio Input Connection - Connect to radio output terminals or its speaker. The Radio Volume
control is on the back side of the unit and is a one time setting depending on the radio connected.
Set the volume on the radio itself for normal sound level on its own speaker. Then with Rotary
switch at Radio and unit powered up, adjust the Radio Volume control for desired output level.
Video Trigger Output Connection - A video camera trigger output is activated with the lever
switch or programmed auxiliary switches. See LEVER AND AUXILIARY CONTROL SWITCH
PROGRAMMING section.
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Page 6 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
AMPLIFIER CONNECTIONS
NEG
NEG
VID
ENA
AUX
RAD
RAD
CUT
POS
POS
SPK
SPK
RAD
VOL
SIREN
FUSE
SW6
SW5
SW4
SW3
SW2
SW1
LV3
LV2
LV1
BAT
-
+
RADIO
Plug installed
this orientation
12-P Terminal Block Plug
(CP4688-12)
#14 AWG BLK
Use second lead
for dual speaker
#14 AWG RED
Use second lead
for dual speaker
+ +
(2) #18 AWG BRN
(#16 AWG dual speaker)
dual speaker connect + to +
(2) #22 AWG BLU
Connect to output jack, ter-
minals, or speaker of radio
CAMERA
#22 AWG YEL
Connect to camera input
#22 AWG ORG
Unit Enable (like an ON/OFF switch)
Connect to positive circuit (fuse panel)
controlled by ignition or other switch
+VDC Switching examples
HORN
RING
SWITCH
+VDC
AUX
SPLICE
HORN
RING
SWITCH
+VDC
AUX
Added
SPDT
Switch
HORN
HORN
-VDC
switching
example
Must set AUX_P
option switch
MOMENTARY
FOOT
SWITCH
AUX
-VDC
switching
example
Must set CUT_P
option switch
ADDED
DOOR
SWIT CH
CUT
+VDC Switching
example
DOOR
SWIT CH
+VDC
CUT
SPLICE
DOME
LIGHT
#22 AWG
WHT
#22 AWG GRN
20A Automotive
Type Fuse
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SC-409-10 Installation and Operating Instructions Page 7 of 16
CP4958A 11/10/05
LIGHT CONTROL CONNECTIONS
The power inputs for the light controls are separate from the power input for siren. Also the power
inputs for the lever switch and six auxiliary control switches are separate. This helps prevent a
fault in one main circuit from affecting another main circuit.
Fuses / Breakers
Each light control output is fused and should be limited to 20 Amps. Properly rated circuit breakers should be connected between the power source and light control power inputs. Failure to
install proper circuit breakers or fuses can result in damage to the unit and/or vehicle.
Lever Switch Connections
Recommended
Wire Size
Amps Size
5 - 10 #16
10 - 15 #14
15 - 25 #12
25 - 40 #10
40 - 60 #8
60 - 80 #6
Use next larger size
if longer than 10 ft.
Outputs Turned On
Option NPL Off
(Default)
Option NPL On
Option NPO Off
Option NPL On
Option NPO On
Off All off
1 Load LV1 only Load LV1 only Load LV1 only
2 Loads LV1, 2 Load LV2 only Load LV2 only
3 Loads LV1, 2, 3 Load LV3 only Loads LV1, 2, 3
Lever
Position
Off 1 2 3
BAT
-
+
Supplied with #10 AWG RED
Internal screw pressure terminal
will accept up to #6 AWG for input
current higher than 40 Amps
Circuit Breaker
Limit input up to
60 Amps Max.
NEG
NEG
VID
ENA
AUX
RAD
RAD
CUT
POS
POS
SPK
SPK
RAD
VOL
SIREN
FUSE
SW6
SW5
SW4
SW3
SW2
SW1
LV3
LV2
LV1
Load LV1
20 Amps
Max.
Load LV2
20 Amps
Max.
Load LV3
20 Amps
Max.
25A Automotive Type Fuses
for outputs on bottom of unit
NOTE: THE NEGATIVE (NEG) CONNECTIONS
ON 12-P PLUG ARE ALSO REQUIRED
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Page 8 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
Auxiliary Control Switch Connections
Recommended
Wire Size
Amps Size
5 - 10 #16
10 - 15 #14
15 - 25 #12
25 - 40 #10
40 - 60 #8
60 - 80 #6
Use next larger size
if longer than 10 ft.
BAT
-
+
Supplied with #10 AWG RED
Internal screw pressure terminal
will accept up to #6 AWG for input
current higher than 40 Amps
Circuit Breaker
Limit input up to
80 Amps Max.
NEG
NEG
VID
ENA
AUX
RAD
RAD
CUT
POS
POS
SPK
SPK
RAD
VOL
SIREN
FUSE
SW6
SW5
SW4
SW3
SW2
SW1
LV3
LV2
LV1
Load SW1
20 Amps
Max.
Load SW2
20 Amps
Max.
Load SW3
20 Amps
Max.
25A Automotive Type Fuses for outputs on bottom of unit
Plug installed
this orientation
6-P Terminal Block Plug
(CP4956-06)
Load SW4
20 Amps
Max.
Load SW5
20 Amps
Max.
Load SW6
20 Amps
Max.
NOTE: THE NEGATIVE (NEG) CONNECTIONS
ON 12-P PLUG ARE ALSO REQUIRED
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SC-409-10 Installation and Operating Instructions Page 9 of 16
CP4958A 11/10/05
LEVER AND AUXILIARY CONTROL SWITCH PROGRAMMING
Each position of the lever switch and the six auxiliary control switches may now be programmed
once electrical connections are made and power is available to the unit. The programming mode
is entered by changing an internal DIP switch.
Note: The unit must be turned on and off with the switch on the enable input to program the function of each auxiliary control switch. See Unit Enable Input Connection under ELECTRICAL
CONNECTIONS section. The Instant On feature will only allow programming of the lever switch
positions when the lever switch is in 1, 2, or 3.
Note: Any lights and devices including Automatic Siren will operate like normal when the lever
switch positions change or the auxiliary control switches are activated. Temporarily disabling the
Automatic Siren or disconnecting speaker(s) while programming is recommended. See OPTION
SWITCHES section.
Follow these steps to program the unit.
Access the internal DIP switch.
1. Turn unit off (backlight LEDS and Auxiliary Control Switches dark)
2. Optionally detach the 6-P plug from the back of the unit to prevent activating lights and de-
vices while programming.
3. Detach the 12-P plug from the back of the unit to prevent shorting while removing cover.
4. Remove the case cover by removing two screws at the bottom rear corners of the unit.
5. Re-attach the 12-P plug onto the back of the unit.
Get into program mode.
1. Turn unit on with enable input or lever switch.
2. Enter the program mode by turning SWB-3 (PGM) DIP switch ON. Two beeps sound con-
firming the unit entered program mode. See OPTION SWITCHES section for location.
Set Auxiliary Control Switch Operation (Lever Switch in OFF Position).
1. With lever switch in off position, each auxiliary switches current operation program status is
indicated on the face of the unit using colors and flashing. See the table below for switch
status definition.
2. Change each switches operation by momentarily pushing the switch.
Note: The Timed Momentary operation, typically used as a Gun Lock Timer, must begin with
switch 6. If switch 6 is programmed as timed momentary only then may switch 5 be programmed
also as a timed momentary and so on.
Each lever switch position 1, 2, or 3 may be programmed to also automatically turn on any of the
auxiliary switch controls except Timed Momentary (Gun Lock Timer). These auxiliary switch controls may still be operated manually even if they were turned on automatically. Each time the
lever switch changes position, the combined auxiliary switch controls are turned on or off. When
the lever switch is turned OFF, all of the auxiliary switch controls tied to a position(s) on the lever
switch are turned off while the other auxiliary switches are unaffected.
Programming continued on next page.
Switch Status Auxiliary Control Switch Operation
Constant RED Push On / Push Off and activate Video Trigger output (Default)
Constant GREEN Push On / Push Off
Flashing Momentary
Flashing 2X Rate
Timed Momentary (Gun Lock Timer)
(On for 10 seconds or 20 seconds See Timer option)
Loop
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Page 10 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
Set Lever Switch and Auxiliary Switch Combination (Lever Switch in Position 1, 2, or 3).
1. Set the lever switch to desired position to program.
2. Press the desired auxiliary switch to change color to RED and tie it to the lever switch posi-
tion Press the auxiliary switch to change color to GREEN and remove from combination.
Note: The Timed Momentary (Gun Lock Timer) may not be added to combination.
Lever Switch and Auxiliary Switch Combination Programming Example
Resulting Operation as Lever Switch is moved to different positions
Save program and get out of program mode.
1. Once the switches are programmed as desired, save the program and exit programming
mode by turning SWB-3 (PGM) DIP switch OFF. Should hear two beeps sound confirming
the program is saved.
2. Turn unit off (backlight LEDS and Auxiliary Control Switches dark).
3. Detach the 12-P plug from the back of the unit to prevent shorting while installing cover.
4. Re-install the case cover and two screws at the bottom rear corners of the unit.
5. Re-attach the 12-P plug onto the back of the unit.
6. Re-attach the 6-P plug onto the back of the unit.
7. Programming is finished.
Note: If the unit is turned off before the SWB-3 (PGM) DIP switch is turned OFF, the new programming will not be saved.
Lever
Position
Aux 1 Aux 2 Aux 3 Aux 4 Aux 5
Aux 6
Gun Lock
1 Red Green Green Green Green N/A Green
2 Red Red Red Green Green N/A Green
3 Red Green Red Green Green N/A Green
Lever
Position
Aux 1 Aux 2 Aux 3 Aux 4 Aux 5
Aux 6
Gun Lock
OFF Off Off Off No Change No Change No Change
1 On Off Off No Change No Change No Change
2 On On On No Change No Change No Change
3 On Off On No Change No Change No Change
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SC-409-10 Installation and Operating Instructions Page 11 of 16
CP4958A 11/10/05
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.
POWER ON/OFF
The unit is enabled (turned on) by applying positive voltage to the orange enable lead. This is
normally controlled with the ignition switch on the vehicle. See INSTALLATION section.
An Instant On feature may be selected so that the unit is turned on with the lever switch without
activating the orange enable lead. See OPTION SWITCHES section.
SIREN CONTROLS
The Rotary Switch selects the primary operating
mode of the siren.
Radio - Also known as Radio Repeat, this function
amplifies a radio speaker input for re-broadcast outside the vehicle. A radio must be connected and the
Radio Volume Adjusted.
No siren tones or are available in this position.
Cycler - A standby position dedicated for Horn Ring Cycler 2 (HRC2). During installation, the
auxiliary input must be connected to the horn ring or other switching device. Tap the horn ring to
bring the unit out of standby into Wail tone. Repeatedly tapping the horn ring will cycle through
Wail, Yelp, and Phaser tones. Tapping the horn ring twice quickly will stop the siren tones and
return the unit to standby. Pressing and holding the horn ring will produce Horn tone until released. Then the siren will return to its previous siren tone or standby.
Standby - A silent mode that allows Manual, Horn and Public Address operation.
Wail - A slower changing tone used on highways.
Yelp - A rapidly changing tone used in congested areas.
Phaser - A very rapidly changing tone used at intersections or in highly congested areas. May be
replaced with Two-Tone (or Hi - Lo, a common European Tone) or disabled entirely. See OPTION SWITCHES section.
Manual Button - Provides manual control of siren tone rise and fall while in Cycler or
Standby. The falling tone may be stopped immediately by setting the Short Manual
option. See OPTION SWITCHES section. With rotary in Wail, Yelp, or Phaser, this
button toggles between tones.
Horn Button - Produces a simulated Air-Horn tone while pressed. Overrides all
siren tones except Radio. Horn tone may be disabled entirely. See OPTION
SWITCHES section.
Auxiliary Input (Optional) - During Installation, the auxiliary input may be connected
to the horn ring or other switching device. Activation of this input will produce Horn
tone or other functions depending on Rotary Switch position.
Sound Hazard
- Sound level from siren speaker (>120dBA @ 10 feet) may cause hearing damage.
Do not operate siren without adequate hearing protection for you and anyone in immediate vicinity.
(Ref. OSHA 1910.95 for occupational noise exposure guidelines)
Rotary
Position
Normal
Tone
Horn
Push-Button
Manual
Push-Button
Auxiliary Input
(Horn Ring)
Radio Radio Radio (No Effect) Radio (No Effect) Radio (No Effect)
Cycler Silent Momentary Horn Manual Siren HRC2
Standby Silent Momentary Horn Manual Siren Momentary Horn
Wail Wail Momentary Horn Wail/Yelp Toggle Mom. Horn (Opt. SWP/INT)
Yelp Yelp Momentary Horn Yelp/Phaser Toggle Mom. Horn (Opt. SWP/INT)
Phaser Phaser Momentary Horn Yelp/Phaser Toggle Mom. Horn (Opt. SWP/INT)
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Page 12 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
PA - The noise-canceling microphone is used for public address operation and
overrides any siren mode when the button on the side is pressed. Adjust the PA
Volume and hold the microphone close to your lips for proper operation.
Cutout Input (Optional) - During Installation, the cutout input may be connected to the vehicle door switch or other switching device. Activation of this
input will turn off any siren tone and remains off when deactivated until a siren
control is changed.
Timed Override (TO) (Optional) - Must be selected, see OPTION SWITCHES section. With
Rotary Switch in Wail, Yelp, or Phaser mode, momentarily pressing the Manual push-button will
toggle between tones overriding the Wail, Yelp, or Phaser tone. With this option selected the unit
automatically goes back to the Wail, Yelp, or Phaser tone after 10 seconds. In summary, this is
intended for intersections, just press Manual button once to override tone, then unit automatically
goes back to previous tone.
Sweep/Intersection Function (SWP/INT) (Optional) - Must be selected, see OPTION
SWITCHES section. Also the auxiliary input must be connected. The Sweep function is an automatic sequence of Yelp, Phaser, and Horn tones allowing hands free operation. The Intersection
function is a more rapid automatic sequence of Yelp, Phaser, and Horn tones allowing hands free
operation through intersections.
With Rotary Switch in Wail, Yelp, or Phaser mode, tap the horn ring to start Sweep function. Tap
the horn ring again to start Intersection function. Repeatedly tapping the horn ring will switch
between Sweep and Intersection functions. Tapping the horn ring twice quickly will return to Wail,
Yelp, or Phaser mode. Pressing and holding the horn ring will produce Horn tone until released.
Then the siren will return to the Sweep or Intersection sequence.
LIGHT SYSTEM CONTROLS
A 4-position lever switch provides control of primary lighting functions. It also provides automatic
activation of the siren. Six additional programmable pushbuttons provided for auxiliary lighting or
other device control.
Lever Switch
The lever switch by default provides
progressive (additive) control of
lighting functions. The third position
also provides Automatic Siren. The
installer determines actual function.
See OPTION SWITCHES section.
Automatic Siren
Position 3 of the lever switch provides Automatic Siren control. If the
siren controls are set where there is
no siren tone output, the Automatic
Siren will override with Wail or other
tone. The cutout input will stop the
siren tone.
Automatic Siren may be disabled. See OPTION SWITCHES section.
Auxiliary Control Switches
Six lighted pushbutton switches are provided for various other lighting functions
or device control. The switch changes
from Green to Red when activated. Also
the switches may be programmed for different functions. These switches may also be combined
with each lever switch position to automatically turn on and off.
See LEVER AND AUXILIARY CONTROL SWITCH PROGRAMMING section.
Auxiliary Control Switch Legends
Different legends may be selected to match the device controlled. A sheet of labels is supplied.
Outputs Turned On
Option NPL Off
(Default)
Option NPL On
Option NPO Off
Option NPL On
Option NPO On
Off All off
1 Load LV1 only Load LV1 only Load LV1 only
2 Loads LV1, 2 Load LV2 only Load LV2 only
3 Loads LV1, 2, 3 Load LV3 only Loads LV1, 2, 3
Lever
Position
Off 1 2 3
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SC-409-10 Installation and Operating Instructions Page 13 of 16
CP4958A 11/10/05
Video Trigger Output
A video camera trigger output is activated with the lever switch in position 1, 2, or 3. Programmed
auxiliary control switches will also activate trigger. See LEVER AND AUXILIARY CONTROL
SWITCH PROGRAMMING section.
Alert
While the lever switch or auxiliary control switches are on, an alert beep is sounded every 15
seconds. Set Alert Disable option to disable. See OPTION SWITCHES section.
Light Control Diagnostics
The unit monitors the light control output connectors on the back of the unit. If there is not output
voltage when there should be, the unit beeps 5 times. Then the switch will do the following.
Switch Fault Indication Action
Lever Switch Position 1, 2, and 3 Particular Pos. LED flashes Output relay remains on
Aux. On / Off Switch Switch turns off (GREEN) Output Relay turns off
Aux. Momentary Switch Switch turns off (GREEN) Output Relay turns off
Aux. Timed Mom. Switch (Gun Lock) Beeps until timed out Output Relay on until timed out
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Page 14 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
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),
controlled devices, or improper installation. The following chart shows typical symptoms and
possible causes.
A blown siren fuse doesn't necessarily mean that the unit is bad. If a speaker or speaker lead is
shorted the internal fuse will blow before the unit is damaged. Disconnect the speaker leads and
replace the fuse. If the OUTPUT light comes on with power on and Yelp selected it is OK. Check
the speaker(s) or leads for possible shorting.
PROBLEMS
Symptom Possible Cause Check
No power or siren
output
No power to enable input
Bad speaker
Connector(s) loose
Rear panel fuse blown
Loose connection at power source
Does backlighting come on?
Do you hear a "pop" when turned on?
With siren on and Yelp selected, listen for tone in amplifier.
Is an external fuse or circuit breaker used?
Are the negative leads connected to a good ground?
No siren tone PA works
High Voltage Protection
Microphone button stuck
Cutout activated
Cutout Polarity Option set wrong
Input voltage must be less than highest rated voltage.
Does microphone button release properly?
Does the siren work when Cutout input is disconnected?
Is the CUT_P option properly configured?
No PA PA volume not set properly Have you tried turning the PA volume control?
Distorted siren
sound
Speaker assembly loose
Intermittent Aux Input connection
Low vehicle voltage
Is the speaker bell or tip loose?
Is the Aux Input used and wired properly?
Input voltage must be greater than lowest rated voltage.
Intermittent siren
tone
High Voltage Protection
Connector loose
Bad power connection
Microphone button activation
Circuit breaker in supply connection
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?
Is something lying on the microphone?
Is a circuit breaker used with at least a 50A rating?
Horn function
stuck on or
Manual stuck on
Horn or Manual switch stuck
Aux Input improperly connected
Aux Input Polarity Option set wrong
Does the horn or manual switch return when released?
Is the Aux Input used and wired properly?
Is the AUX_P option properly configured?
No Radio Unit not connected to radio
Radio volume too low
Is the radio connected properly to the unit?
Can you here the radio in the vehicle?
Have you tried adjusting the rear radio volume control?
Wrong siren tone Two-Tone option installed
Aux Input set to wrong function
Is the T-T option selected?
Is the SWP option selected?
Phaser or Horn
not working
Tone disabled Is the P_I option selected?
Is the H_I option selected?
Automatic Siren
not working
Automatic Siren disabled Is the AUT_S option selected properly?
Lever switch not
working at all
No power to lever switch
No ground at siren connector
Do the lever switch indicators light?
Does the siren work?
Lever switch not
working in some
positions
Loose lever switch output connection
Does the lever switch indicator work in those positions?
Is the corresponding fuse blown?
Aux control switch
not working
No power to aux switches
Loose aux switch output connection
Do the aux switch indicators light?
Is the corresponding fuse blown?
Page 15
SC-409-10 Installation and Operating Instructions Page 15 of 16
CP4958A 11/10/05
PARTS
The following parts are available from Carson Manufacturing Company, Inc.:
Part Description
CP3966 Bolt, mounting, 1/4-20 X 3/8” (2 required)
CP3571 Bracket, mounting
CP4688-12 Connector, 12-Pin power
CP4956-06 Connector, 6-Pin Aux Output
CP4952 Cover (not including chassis)
ATO/ATC 20A Fuse, 20 Amp Automotive (Siren Amp)
ATO/ATC 25A Fuse, 25 Amp Automotive (Light Controls)
CP4960 Knob, Black Lever Switch
CP4852 Knob, Black Rotary Switch
CP4895 Label, Aux Output Legends
CP4750 Microphone, Noise Canceling w/Connector
CP3633 Microphone Bracket with mounting screws
SR-15-1 Microphone Strai n Relief
CP4119 Transistor, output (2 required) (Industry Standard TIP36C, Not Texas Instruments)
CP4958 Instruction Manual
Page 16
Page 16 of 16 SC-409-10 Installation and Operating Instructions
11/10/05 CP4958A
RETURN
If you have any questions concerning this or any other Carson product,
please contact our Technical Service Department at (888) 577-6877.
Many issues can be handled over the phone. We can also be reached via
e-mail at service@carson-mfg.com
If a product must be returned for any reason, please contact our Technical
Service Department to obtain a Returned Merchandise Authorization number (RMA#) before you ship the product to Carson. Please write the RMA#
clearly on the package near the mailing label. Be sure to provide a return
address, contact and phone number, along with a brief description of the
problem.
LIMITED WARRANTY
Carson Manufacturing Company, Inc. warrants this new product to be free from defects
in material and workmanship, under normal use and service, for a period of five (5)
years from the date of delivery to the first user-purchaser.
During this warranty period the obligation of Carson Manufacturing is limited to repairing
or replacing, as Carson Manufacturing may elect, any part or parts of such product
which after examination by Carson Manufacturing 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 CARSON MANUFACTURING COMPANY, INC. 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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