Carson SA-500-20 Unpacking, Mounting, Option Switches, Cutout Input Polarity The cutout input is

Page 4 of 8 SA-500-20 Installation and Operating Instructions

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 opera- tion 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 in- clude unit with attached microphone, mounting bracket, microphone bracket with 2 screws, 2 mounting bolts, removable terminal block plug, and these instructions. Contact supplier immedi- ately 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 can be selected by turning on		SIDE VIEW
or off any of 8 DIP switches internally	COVER REMOVED
mounted on the right side of the PC board.
Cover Removal - The cover is held in place	FUSE
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
front of the cover.	OPTION SWITCHES
Cutout Input Polarity - The cutout input is
normally activated by connecting to positive.
To activate by connecting to negative turn off "CUT_P".

Auxiliary Input Polarity - The auxiliary input is normally activated by connecting to positive. To activate by connecting to negative turn off "AUX_P".

Auxiliary Input Function - The auxiliary input normally activates the Horn function. To activate the Man/Phsr function with the auxiliary input turn on "AUX_I".

Two-Tone- Two-Tone can replace Phaser by turning on "T-T".

Phaser Disable - The Phaser function can be completely disabled by turning on "P_I". Note: when Phaser is disabled the Man/Phsr pushbutton will toggle between Wail and Yelp. Horn Disable - The Horn function can be completely disabled by turning on "H_I".

Yelp Override - Causes the Man/Phsr function to toggle to Yelp with selector switch in Wail mode. Turn on "YLP_O".

Short Manual - The Manual function can be set to immediately cut off when the Man/Phsr pushbutton is released. Turn on "SM".

Horn Ring Cycler 2 (HRC2) - Turn on “T-T” and “P_I” to enable this feature. Also connect the auxiliary input to the horn ring or other switch. While the siren is in standby, 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 re- leased. Then the siren will return to its previous siren tone or standby.

NOTE: Earlier models with S/N lower than 04190000 have a different version of HRC. In this case the siren tones cycle through Standby, Wail, Yelp, and Phaser. The tone is stopped by cy- cling to Standby.

05/07/05 CP4874B