Filter
Top Products
Page 8 of 12 Installation and Operating Instructions SC-411RD-10
7/30/12 CP5094C
OPERATION
This unit is designed for easy operation under the stress associated with high-speed pursuit. Most siren func-
tions are accessible with one simple motion. Certain operational features or controlled by option settings and/or
installation connections.
POWER ON/OFF
The unit is powered by the ignition switch.
SIREN CONTROLS
The Rotary Switch selects the primary operating mode of the siren.
RADIO - Also known as Radio Repeat, this function amplifies a radio speaker input for re-broadcast outside the
vehicle. A radio must be connected and the Radio Volume Adjusted. No siren tones or PA are available in this
position.
CYCLE - A standby position dedicated for Horn Ring Cycler 2 (HRC2). During installation, the siren control
input must be connected to the horn ring or other switching device. 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 released.
STBY - A silent mode that allows Manual, Horn and Public Address operation.
WAIL - A slower changing tone used on highways.
YELP - A rapidly changing tone used in congested areas.
PHSR - A very rapidly changing tone used at intersections or in highly congested areas. May be replaced with
Two-Tone (or Hi - Lo, a common European Tone) or disabled entirely.
MANUAL Button - Provides manual control of siren tone rise and fall while in Cycler or Standby. The falling
tone may be stopped immediately by setting the Short Manual option. With rotary in WAIL, YELP, or PHSR this
button toggles between tones.
HORN Button - Produces a simulated Air-Horn tone while pressed. Overrides all siren tones except Radio.
Horn tone may be disabled.
PA - The noise-
canceling microphone
is used for public
address operation
and overrides any
siren mode when the
button on the side is
pressed. Adjust the
PA Volume and hold
the microphone close
to your lips for proper operation.
SIRCTRL Input (Optional) - During installation, the siren control input may be connected to the horn ring or
other switching device. Activation of this input will produce Horn tone or other functions depending on Rotary
Switch position as shown in the above table.
LITCTRL Input (Optional) - During installation, the light control input may be connected to a momentary switch.
Activation of this input will cycle through the lever switch positions, with the lever switch overriding if moved.
CUTOUT Input (Optional) - During Installation, the cutout input may be connected to the vehicle door switch or
other switching device. Activation of this input will turn off any siren tone and remains off when deactivated until
a siren control is changed.
Timed Override (Optional) - With Rotary Switch in Wail, Yelp, or Phaser mode, momentarily pressing the
Manual push-button will toggle between tones overriding the Wail, Yelp, or Phaser tone. With this option se-
lected the unit automatically goes back to the Wail, Yelp, or Phaser tone after 10 seconds.
Sweep/Intersection Function (Optional) - The Sweep function is an automatic sequence of Yelp, Phaser, and
Horn tones allowing hands free operation. The Intersection function is a more rapid automatic sequence of
Yelp, Phaser, and Horn tones allowing hands free operation through intersections.
With Rotary Switch in WAIL, YELP, or PHSR position, tap the horn ring to start Sweep function. Tap the horn
ring again to start Intersection function. Repeatedly tapping the horn ring will switch between Sweep and Inter-
section functions. Tapping the horn ring twice quickly will return to Wail, Yelp, or Phaser mode. Pressing and
holding the horn ring will produce Horn tone until released. Then the siren will return to the Sweep or Intersec-
tion sequence.
Second Speaker Output (Dual Tone) - This unit provides a second siren amplifier that will produce independ-
ent siren tones based on option settings. Radio Repeat and PA are reproduced through both amplifiers.
Rotary
Position
Normal
Tone
Horn
Push-Button
Manual
Push-Button
Siren Control Input
(Horn Ring)
Radio Radio Radio (No Effect) Radio (No Effect) Radio (No Effect)
Cycler Silent Momentary Horn Manual Siren HRC2
Standby Silent Momentary Horn Manual Siren Momentary Horn
Wail Wail Momentary Horn Wail/Yelp Toggle Mom. Horn (Opt. SWP/INT)
Yelp Yelp Momentary Horn Yelp/Phaser Toggle Mom. Horn (Opt. SWP/INT)
Phaser Phaser Momentary Horn Yelp/Phaser Toggle Mom. Horn (Opt. SWP/INT)