Carson SC-407 operating instructions → → → → → → → → → →

SC-407-10 Ver. B Installation and Operating InstructionsPage 5 of 12

Horn Disable - The Horn function can be disabled by cutting the trace

on the back of the board at the location designated "cut to disable

horn".

Automatic Siren Disable - To disable automatic siren operation when

Cut to →

Disable horn

the lever switch is in position 3 cut and remove the red wire attached to

the lever switch relay board.

Horn Ring Cycler 2 option (HRC2) - This option allows selection of

Wail, Yelp, and Phaser by repeatedly pressing horn ring or other switch

connected to the AUX input. It is selected by cutting both the "AUX I"

OPTION TRACE CUT

and "PHSR" jumper resistors. This disables Phaser operation in the

Wail or Yelp positions. See OPERATION section for further details.

SIREN CONNECTIONS

(2) #22 AWG BLU

#22 AWG WHT (See below)

Electrical connections to the siren section

Connect to output

are made using a removable terminal

jack, terminals or

#22 AWG GRN (See below)

speaker of radio

block plug located on the back. A label on

(2) #18 AWG BRN

#14 AWG RED

the unit identifies the terminal function.

(#16 - 2 SPKR)

RADIO

Use second lead

You should install the plug on the unit

2 - SPKR - Connect for

for 2 - SPKR

same phase (+ to +)

before wiring. If the unit needs service the

+

plug can be easily removed without unwir-

BAT

ing.

-

The power supply of the unit must be ca-

#14 AWG BLK

pable of delivering peak currents up to 50

Use second lead

• • • • • • • • • •

for 2 - SPKR

amps for adequate short circuit protection

→ → → → → → → → → →

and reliable operation.

The preferred

source is directly at the vehicle battery.

SPKR SPKR

POS POS RAD RAD

AUX CUT NEG NEG

The unit is internally 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

CONNECTIONS AT REAR OF UNIT WITH

tighten the screw

can

result in im-

10-PIN TERMINAL BLOCK PLUG (CP4688-10)

proper operation or burning the con-

nector 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.

Auxiliary Input Connection -

The Auxiliary Input allows acti-

+VDC

+VDC

MOMENTARY

vation by an external source of

Added

FOOT

either

the Horn or Man/Phsr

HORN

HORN

SPDT

HORN

SWITCH

RING

SPLICE

RING

Switch

function. The adjacent diagram

SWITCH

SWITCH

AUX

shows three connection exam-

ples.

See the INSTALLER-

HORN

-VDC

SELECTABLE OPTIONS sec-

AUX

AUX

switching

tion for programming details.

example

NOTE:

Permanent disconnec-

Must cut AUX P

tion of the vehicle horn is NOT

+VDC Switching examples

option resistors

recommended.

Cutout Input Connection - The Cutout Input turns

+VDC

ADDED

off any siren tone output when activated, and remains

DOOR

SWITCH

off until a control is activated or changed. The adja-

cent diagram shows two connection examples. See

DOOR

SPLICE

DOME

SWITCH

CUT

the INSTALLER-SELECTABLE OPTIONS section for

LIGHT

programming details.

CUT

-VDC

switching

+VDC Switching

example

Must cut CUT P

example

option resistors

CP4842C 05/07/05