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TB0362A Page 10 of 14 05/28/10
OPERATION
SC-1022 Model
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)
POWER ON/OFF
The unit is normally turned on with ignition switch on the vehicle. See INSTALLATION section.
The POWER light on remote amplifier will turn on. The hand control will also be backlit.
SIREN CONTROLS
MECH, WAIL, YELP, AND PHSR PUSHBUTTON SWITCHES
Four pushbutton switches control the primary operating mode of the siren.
The primary operating modes are:
Standby - A silent mode that may be overridden at any time.
Mech - A simulated mechanical siren tone. Tone may be changed or disabled.
See INSTALLER SELECTABLE OPTIONS section.
Wail - A slower changing tone used on highways.
Yelp - A rapidly changing tone used in congested areas.
Phaser - A very rapid changing tone used at intersections and very highly congested areas. May be
optionally replaced with Two-Tone or disabled. Two-Tone is two alternating frequencies like a
European HI-LO. See INSTALLER SELECTABLE OPTIONS section.
Momentarily press button to activate (lit red). Momentarily press button again to de-activate. Also while a particular
mode is activated, switch to a different mode by pressing one of the other three buttons. The unit is in Standby when
NONE of the four buttons are activated (NOT lit red). For example starting with all four buttons off, press the Wail
button to turn on Wail. Now press the Yelp button to change to Yelp. Press the Yelp button again to turn off sound
(return to Standby).
MAN PUSHBUTTON SWITCH
Provides manual control of siren tone depending on the primary operating mode selected.
While in Standby, the Manual button controls the Mechanical tone. Rising to peak while pressed then falling until die
out when released.
While in Mech, Wail, Yelp, or Phaser mode, pressing the Manual button causes tone to rise and peak then resume
when released.
HORN PUSHBUTTON SWITCH
Produces a simulated Air-Horn tone while pressed. Overrides all siren modes. Horn tone may be disabled.
See INSTALLER SELECTABLE OPTIONS section.
AUXILIARY INPUT FUNCTIONS
The switch or horn ring attached is intended to be momentary. The ignition switch on the vehicle must be on for the
Auxiliary Input to function. See INSTALLATION section.
While in Standby, activating auxiliary is the same function as activating Manual.
While in Mech, Wail, Yelp, or Phaser mode, activating auxiliary will produce Horn tone
Horn Ring Cycler 2 (HRC2) - this feature may also be added. See description on Page 9.
Primary Mode and Tone MAN Button HORN Button Auxiliary Input (Horn Ring)
Standby (Silent) M. Mech Horn M. Mech. or HRC2
Mechanical Man. Mech. Rise Horn Horn
Wail, Yelp, or Phaser Man. Wail Rise Horn Horn
LIGHT CONTROLS
LT1 and LT2 PUSHBUTTON SWITCHES
Momentarily push button to activate (will light red) corresponding light output.
Momentarily push button again to de-activate corresponding light output.
SC-1022
MAN
LT1
MECH
YELP
HORN
LT2
WAIL
PHSR