Operation

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)

The OFF/ON Rocker Power Switch controls the siren power. The siren may be left on any time the vehicle is in operation. The power should be turned off when vehicle is not being used to conserve battery power.

The Rotary Function Switch selects various operating modes. These modes are as follows:

Yelp:	The siren produces a moderate warble tone. This mode may be used in
	lightly congested areas.
Wail:	The siren produces a normal rise-fall tone pattern. This mode may be
	used on highways or areas with constant traffic flow.
Standby:	A silent mode that allows Manual, Horn and Public Address operation.

YELP

WAIL

STBY RADIO

Radio: This mode reproduces, or repeats, the output of a radio. The radio must be connected and RADIO VOLUME on the face adjusted. No siren tones or PA operation are available in this position.

Manual /

Phaser: With the mode switch in the Standby position this push-button switch provides Manual siren tone control, rising when pressed and falling when released. When the mode switch is in the Wail position, the push button

overrides with Yelp tone. When the mode switch is in the Yelp position, MAN/PHSR HORN the push-button overrides with Phaser tone. This tone is a very fast

warble tone used at intersections or in highly congested areas. Pressing the button once changes to the override tone and pressing again changes

the tone back to Yelp or Wail. Optional operation includes replacement of the Phaser tone with Two-Tone or disabling the Phaser tone entirely

Horn: This push-button switch provides a simulated air-horn tone while pressed. This can be used to supplement the normal vehicle horn and is useful at intersections or in low noise areas. This tone will override all other siren tones.

PA: Pressing the microphone button in any mode except Radio changes the unit to PA (Public Address). The siren mode resumes when the button is released. Adjust the PA Volume and hold the microphone close to your lips for proper operation.

Volume Controls

Volume controls are provided for radio repeat function volume and public address volume. These should be set when the vehicle is parked. Set the RAD volume with the selector switch in the Radio position and the radio volume set to desired level. Set the PA volume to the maximum level with no feedback (squeal).

VOLUME

RAD PA

Auxiliary Input

During installation an auxiliary input may be connected to the horn ring or other switching device. It provides the same operation as pressing the Horn button or optionally the Man/Phsr button.

Cutout

During installation a cutout input may be connected to a door switch. It turns 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 siren control switch or input will restore normal function.

Horn Ring Cycler (Optional)

During installation, the auxiliary input may be connected to the horn ring or other switching device, and the HRC option programmed. With the mode switch set to the Standby position, the horn ring can be pressed repeatedly to select the Wail, Yelp, Phaser and Standby tones or modes in succession. Operating any other switch resumes normal operation. Please note that this option disables Phaser selection in the Wail or Yelp selector switch positions.

TB0355A

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09/27/05

SA-500-16 14V specifications

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OPERATION

Wail:

Standby: