TB0354A
Page 6 of 8
09/27/05
MAN/PHSR HORN
VOLUME
RAD PA
YELP
WAIL
STBY
RADIO
OPERATION
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)
The
OFF/ON
Rocker Power Switch controls the siren power. The siren may be left on any time the vehicle is in
operation. The power should be turned off when vehicle is not being used to conserve battery power.
The Rotary Function Switch selects various operating modes. These modes are as follows:
Yelp, Wail, and Standby:
A silent mode that allows Horn and Public Address
operation.
Radio:
This mode reproduces, or repeats, the output of a radio. The radio must
be connected and RADIO VOLUME on the face adjusted. No Horn or PA
operation are available in this position.
Manual /
Phaser:
Disabled
Horn:
This push-button switch provides a simulated air-horn tone while pressed.
This can be used to supplement the normal vehicle horn and is useful at
intersections or in low noise areas. This tone is available with selector
switch in Yelp, Wail, or Standby.
PA:
Pressing the microphone button in any mode except Radio changes the unit to PA (Public Address). The
mode resumes when the button is released. Adjust the PA Volume and hold the microphone close to your
lips for proper operation.
Volume Controls
Volume controls are provided for radio repeat function volume and public address volume.
These should be set when the vehicle is parked. Set the RAD volume with the selector switch
in the Radio position and the radio volume set to desired level. 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 Horn button.
Cutout
During installation a cutout input may be connected to a door switch. It turns off Horn when the door is opened. The
Horn tone will continue to be cut off even while the door is opened.
