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SC-1002 / 1012 / 1022-10 14 Installation Instructions Page 11 of 16
CP4997B 2/20/08
OPERATION
SC-1002 and SC-1012 Models
POWER ON/OFF
The unit is enabled (turned on) by applying positive voltage to the orange enable lead. On the
SC-1002, backlight turns on. On the SC-1012 remote amplifier, POWER light comes on.
This is normally controlled with the ignition switch on the vehicle. See INSTALLATION section.
An Instant ON feature may be selected so the unit is turned on when the front panel controls are
activated. See OPTION SWITCHES section.
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 OPTION SWITCHES 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 frequen-
cies like a European HI-LO. See OPTION SWITCHES 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 OPTION SWITCHES section.
AUXILIARY INPUT FUNCTIONS
The switch or horn ring attached is intended to be momentary.
With selector switch in Standby, activating auxiliary is the same function as activating Manual.
Note that the orange enable lead must be activated for the unit to be on while in Standby.
When the selector switch is in Auto activating auxiliary is the same as pressing Horn switch.
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.
MAN
AUTO
S
T
B
Y
W
A
I
L
YELP
MECH
PHSR HORN
SC-1002
PHSR
HORN
SC-1012
Selector
Position
Mech - Wail - Yelp
Position
Phaser
Switch
Auxiliary Input
(Horn Ring)
Standby Silent Mom. Phsr Man. Mech., Man., or Yelp or HRC2
Manual Man. Mech., Man., or Yelp Phsr Toggle Horn
Auto Mechanical, Wail, or Yelp Phsr Toggle Horn
Horn
Switch
Horn
Horn
Horn
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)