Carson SC-407, SC-407-10 User Manual 2

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Carson Manufacturing Co., Inc.

5451 North Rural Street

Indianapolis, IN 46220

Phone: [phone] Fax: [phone]

www.carsonsirens.com

TECHNICAL BULLETIN

ELP
STBY
WAIL

OFF

1

2

ON
OFF
RAD

3

SC-407

OLUME

MAN/PHSR

L ALY AUX 2

RADHORN

UX 1R ALY

PA

INSTALLATION AND

OPERATING MANUAL

SC-407-10 14V

(OLD VERSION)

Different Auxiliary and Cutout Input Polarity Options

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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SC-407-10 SPECIFICATIONS

AMPLIFIER INPUT POWER: 9-16 Volts DC, 8 Amps DC per 100W Speaker

SIREN MODE
OUTPUT POWER: 15 VDC input, 100W speaker(s)

One speaker – 105 Watts RMS

Two speakers - 180 Watts RMS

AUDIO MODE
OUTPUT POWER: 14 VDC input, 100W speaker(s)

One speaker – 40 Watts RMS

Two speakers - 80 Watts RMS

SIREN
FREQUENCY: 700Hz - 1450Hz Nominal

CYCLE RATES: WAIL - 15 cycles/min

YELP - 210 cycles/min
PHASER - 15 cycle/sec
TWO-TONE – 1 cycle/min

AUDIO
RESPONSE: 200Hz - 10KHz +/-3db

Harmonic Distortion Less than 3% @ 1KHz

RADIO INPUT
SENSITIVITY: 0.75VAC Input Min. for 40 Watts RMS Output (1 spkr)

OPERATING
TEMPERATURE: -15° F to +140° F

SIZE: 6-1/8" Wide X 2-3/4" High X 5-7/8" Deep

WEIGHT: 5 pounds

NIGHT VISIBILITY: Backlit front control panel when power is on

AMPLIFIER PROTECTION: High Voltage – Siren output stops with input voltage above highest rating

Stops high output power from blowing speaker

Reverse Polarity – Fuse(s) blows when power is wired backwards
Shorted Output – Fuse(s) blows if speaker shorts (a common problem)

LIGHT CONTROL INPUT POWER: 9-16 Volts DC, 140 Amps Max. not including siren input current.

LEVER SWITCH OUTPUTS: 30 Amps Max. per circuit, 60Amps Max. Total.

FOUR AUXILIARY OUTPUTS: 20 Amps Max. per circuit.

LIGHT C0NTROL PROTECTION: None.

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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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.

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.

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)

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. To prevent internal damage mounting bolts must not enter case more
than 1/4".
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.

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".

A microphone clip along with mounting screws (CP3633) holds the microphone in place.

CP3571 Mounting Bracket

1/4-20 Bolt
(CP3966)

Bolt must not pass through
cover more than 1/4”

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INSTALLER-SELECTABLE OPTIONS

Carefully cutting programming resistor jumpers or traces on the printed circuit
board inside the case can select various options. The cover must be removed
to access the jumpers. The cover is held in place by a snap-fastener on the
back of the unit. Hold the unit with the front case flange on the edge of a hard
surface and press hard on the back of the unit. The chassis will slide out the

FUSE

T-T AUX P CUT P PHSR AUX I

front of the cover.

Auxiliary Input Function - The auxiliary input normally activates the Horn

OPTION JUMPERS

function. To activate the Man/Phsr function with the auxiliary input cut the
jumper resistor labeled "AUX I".

Auxiliary Input Polarity - The auxiliary input is normally activated by connecting to ground. To activate by connecting
to positive cut the jumper resistor labeled "AUX P".

Cutout Input Polarity - The cutout input is normally activated by connecting to ground. To activate by connecting to
positive cut the jumper resistor labeled "CUT P".

Two-Tone - Two-Tone can replace Phaser by cutting the jumper resistor labeled "T-T".

Phaser Disable - The Phaser function can be completely disabled by cutting the jumper resistor labeled "PHSR".

Horn Ring Cycler option (HRC) - This option allows selection of Wail, Yelp, Phaser and Standby by repeatedly

pressing horn ring or other switch connected to the auxiliary input. It is selected by cutting both the "AUX I" and
"PHSR" jumper resistors. This disables Phaser operation in the Wail or Yelp positions

Horn Disable - The Horn function can b e disabled by cutting the trace on the back of the
board at the location designated "cut to disable horn".

Cut to
Disable horn

Automatic Siren Disable - To disable automatic siren operation when the lever switch is in position 3, cut and remove
the red wire attached to the lever switch relay board inside the unit.

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