Code 3 Motorcycle Sirens 3951, 3955 - Manual (Page 3)

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Introduction
The Model 3951 siren has been designed to meet the special needs of motorcycle applications. This series
of sirens incorporates a rugged steel enclosure along with microprocessor based circuitry and MOSFET
technology. Advanced features such as Instant "ON", Scroll, and more, make the 3951 siren extremely
versatile.
Standard Features
The Model 3951 siren is a highly integrated siren amplifier designed to be operated via user supplied control
switches and common microphone interface. The following features are standard on Model 3951 sirens:
Siren Tones - Industry standard Wail, Yelp, and HyperYelp tones.
AIR HORN Tone - Electronic AIR HORN sound.
Instant-On- There is no " ON/OFF " switch. Selecting any siren function, or pressing the Push To Talk (PTT)
switch on the user supplied common microphone interface will activate the siren in the appropriate mode,
assuming the siren is connected to a source of +12V and the vehicle's ignition switch is on.
Sirens are an integral part of an effective audio/visual emergency warning system. How-
ever, sirens are only short range secondary warning devices. The use of a siren does not
insure that all drivers can or will observe or react to an emergency warning signal, particu-
larly at long distances or when either vehicle is traveling at a high rate of speed. Sirens
should only be used in a combination with effective warning lights and never relied upon as
a sole warning signal. Never take the right of way for granted. It is your responsibility to be
sure you can proceed safely before entering an intersection, driving against traffic, or
responding at a high rate of speed.
The effectiveness of this warning device is highly dependent upon correct mounting and
wiring. Read and follow the manufacturer’s instructions before installing or using this
device. The vehicle operator should check the equipment daily to insure that all features of
the device operate correctly.
To be effective, sirens must produce high sound levels that potentially can inflict hearing
damage. Installers should be warned to wear hearing protection, clear bystanders from the
area and not to operate the siren indoors during testing. Vehicle operators and occupants
should assess their exposure to siren noise and determine what steps, such as consultation
with professionals or use of hearing protection should be implemented to protect their
hearing.
This equipment is intended for use by authorized personnel only. It is the user’s responsi-
bility to understand and obey all laws regarding emergency warning devices. The user
should check all applicable city, state and federal laws and regulations.
Public Safety Equipment, Inc., assumes no liability for any loss resulting from the use of this
warning device.
Proper installation is vital to the performance of the siren and the safe operation of the
emergency vehicle. It is important to recognize that the operator of the emergency vehicle
is under psychological and physiological stress caused by the emergency situation. The
siren system should be installed in such a manner as to: A) Not reduce the acoustical
performance of the system, B) Limit as much as practical the noise level in the passenger
compartment of the vehicle, C) Place the controls within convenient reach of the operator
so that he can operate the system without losing eye contact with the roadway.
Emergency warning devices often require high electrical voltages and/or currents. Properly
protect and use caution around live electrical connections. Grounding or shorting of electri-
cal connections can cause high current arcing, which can cause personal injury and/or
severe vehicle damage, including fire.
PROPER INSTALLATION COMBINED WITH OPERATOR TRAINING IN THE PROPER
USE OF EMERGENCY WARNING DEVICES IS ESSENTIAL TO INSURE THE SAFETY
OF EMERGENCY PERSONNEL AND THE PUBLIC.
WARNING!
!