SA-441 Installation and Operating Instructions Page 11
11/6/01 CP4816A
MICROPHONE (PA Override)
The attached noise-canceling microphone is used for public address operation and overrides
any function when the button on the side is pressed.
PA VOL
This control adjusts the PA volume. With the vehicle parked, set the
PA volume to the maximum level with no feedback (squeal).
AUXILIARY INPUT
During installation an auxiliary input may be connected to the horn ring or other switching
device. It provides the same operation as pressing the Siren button.
RADIO VOLUME
The radio repeat volume level is set using an adjustment on the side of the amplifier. Set the
Selector Switch to the Radio position and turn on the power. With the radio volume set to
normal level, adjust the siren radio repeat control to the desired level.
OVERRIDE FUNCTIONS
In addition to PA Override, two other override functions are available and controlled by the
Siren button or auxiliary input.
Horn Override -
With the Selector Switch in the Phaser, Yelp or Horn positions the Siren
button or auxiliary input activates a simulated air-horn tone. This can optionally be disabled.
Yelp Override -
With the Selector Switch in the Wail position, pressing the Siren button or
activating the auxiliary input toggles between the Wail and Yelp function.
Phaser Override –
With the Dual control switch on Phaser override is available instead of
Horn override in the Wail-Yelp and Wail selector switch positions. Horn override replaces
Phaser override if Phaser is disabled.
HORN RING CYCLER (Optional)
During installation, the auxiliary input may be connected to the horn ring or other switching
device, and the HRC option selected. With the Selector Switch set to the Horn position, the
horn ring or Siren button can be tapped repeatedly to select the Wail, Yelp, Phaser and
Standby tones or modes in succession. Pressing and holding the horn ring or Siren button
operates the Horn tone without changing the basic tone selection.
In Dual mode HRC additionally includes Wail-Yelp output as one of the modes.
PA
PA
VOL
VOL