Page 10 SA-441 Installation and Operating Instructions
CP4816A 11/6/01
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.
DUAL SWITCH
The Dual switch controls the signal to the two amplifiers.
With the switch off the amplifiers produce a common signal to
the speakers. With the switch on independent siren signals
are produced by each amplifier. Selector switch labeling
reflects these differences.
Dual switch off:
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.
Dual switch on:
Wail and Yelp
– One speaker produces Wail and the other produces Yelp.
Dual Yelp
– Two independent Yelp signals.
Dual Wail
– Two independent Wail signals.
Dual Manual
– Two independent Manual signals controlled by the Siren button.
Two-Tone
– Or Hi-Lo, a common European tone.
Radio
– Same operation as with Dual switch off.
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.
SELECTOR SWITCH
RADIO
RADIO
HRN/TT
HRN/TT
MAN
MAN
WAIL
WAIL
YELP
YELP
PHASR/W
PHASR/W--YY
SIREN
SIREN
DUAL
DUAL
O
O
N
N
O
F
F