Page 10 SA-430 Installation and Operating Instructions
CP4854B 03/22/02
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 without repetitive activation of
switches or automatic timed switching that can interfere with desired operation.
SELECTOR SWITCH
The 6-position rotary selector switch controls the primary
operating function of the siren.
Phaser
- A very rapidly changing tone used at intersections
or in highly congested areas. Can be optionally disabled or
replaced with Two-Tone.
Yelp
- A rapidly changing tone used in congested areas.
Wail
- A slower changing tone used on highways.
Man
- Or Manual, the siren tone is controlled manually by the
Siren button or auxiliary input.
Horn
- A standby mode that allows Horn Override.
Radio
- Also known as Radio Repeat, this function amplifies
a radio speaker input for re-broadcast outside the vehicle.
No siren tones are available in this position.
SIREN SWITCH
This momentary push-button switch provides various control functions
in conjunction with the Selector Switch. These functions are manual
tone control in the Manual position, Horn Override in the Phaser, Yelp
and Horn positions, and Yelp Override in the Wail position. It can
optionally control Horn Ring Cycler operation in the Horn position if the
HRC option is selected.
MICROPHONE (PA Override)
The attached noise-canceling microphone is used for public address operation and overrides
any function when the button on the side is pressed.
PA VOL
This control adjusts the PA volume. With the vehicle parked, set the
PA volume to the maximum level with no feedback (squeal).
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 Siren button.
SELECTOR SWITCH
RADIO
RADIO
HORN
HORN
MAN
MAN
WAIL
WAIL
YELP
YELP
PHASER
PHASER
SIREN
SIREN
PA
PA
VOL
VOL