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TB0362A Page 9 of 14 05/28/10
OPERATION
SC-1002 and SC-1012 Models
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
Power to the unit is controlled by the vehicle ignition switch.
If the Instant ON feature is installed the unit may be turned on with siren or light controls.
See INSTALLATION and INSTALLER SELECTABLE OPTIONS section.
On the SC-1002 the backlight will turn on. On the SC-1012 remote amplifier the POWER light will turn on.
SIREN CONTROLS
MAN - STBY - AUTO SELECTOR SWITCH
A 3-position rocker selector switch controls the primary operating mode of the siren.
Manual - Provides manual control of Mechanical and Wail tone rise and fall or momentary Yelp
depending on the position of Mech - Wail - Yelp switch.
Auto - Keeps siren tone running (automatic rise and fall). Tone depends on the position of
Mech - Wail - Yelp switch.
Standby - A silent mode that may be overridden anytime.
MECH - WAIL - YELP SELECTOR SWITCH
A 3-position rocker selector switch controls the primary siren tone.
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 BUTTON (SC-1002) or ROCKER (SC-1012)
A very rapid changing tone used at intersections and very highly congested areas. With
selector switch in Auto, this tone override is toggled on and off by repeatedly pressing switch.
With selector switch in Standby, this tone override is momentary as long as the switch is
pressed. 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.
HORN BUTTON (SC-1002) or ROCKER (SC-1012)
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. In most cases the ignition switch on the vehicle must
be on for the Auxiliary Input to function. See INSTALLATION section.
With selector switch in Standby, activating auxiliary is the same function as activating Manual.
When the selector switch is in Auto, activating auxiliary will produce the Horn tone.
Horn Ring Cycler 2 (HRC2) - this feature may also be added by turning on the HRC2 option. HRC2 is only available
while the unit is in Standby. Tapping the attached horn ring or other switch, will bring the unit out of standby into
Mechanical tone. Repeatedly tapping the horn ring will cycle through Mechanical, 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. Then the siren will return to its previous siren tone or standby.
Selector
Position
Mech - Wail - Yelp Position Phaser Switch Horn Switch Auxiliary Input (Horn Ring)
Standby Silent Mom. Phsr Horn M. Mech., M. Wail, or Yelp or HRC2
Manual M. Mech., M. Wail, or Yelp Phsr Toggle Horn Horn
Auto Mechanical, Wail, or Yelp Phsr Toggle Horn Horn
LIGHT CONTROLS
LT1 and LT2 LIGHTED ROCKER SWITCHES
When turned on the rocker switch will light up and activate the corresponding light output.
MAN
AUTO
S
T
B
Y
W
A
I
L
YELP
MECH
PHSR HORN
SC-1002
PHSR
HORN
SC-1012
LT1 LT2