Code 3 Motorcycle Sirens 3951, 3955 - Manual (Page 4)

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Scroll - A momentary positive signal applied to this input from a user supplied switch will cause to siren to
activate. The siren will scroll to the next tone each time the switch is tapped. Holding the scroll switch will
cause to siren to switch to Standby mode.
Wail - A continuous positive signal applied to this input from a user supplied switch will cause to siren to
activate in wail mode for as long as the switch remains in the on position.
Airhorn - A continuous positive signal applied to this input from a user supplied switch will cause to siren to
generate the Airhorn signal for as long as the switch remains in the on position.
Instant Public Address - Public Address override of all siren functions when the motorcycle Push-to-Talk
(PTT) key is pressed while the user supplied common microphone interface is set to PA mode.
Radio Rebroadcast - Broadcasts Two-way radio reception over siren speakers. These inputs are transformer
coupled to prevent loading of the radio.
InterClear ® - This unique feature can be used to activate additional warning lights for 7 seconds, each time
the siren mode is changed using either the control switches or the vehicle horn ring, thus allowing an
additional level of warning in situations such as intersections without the operator having to take his hands off
the wheel or his eyes off the road.
Automatic Short Circuit Protection- The siren will sense a short circuit on the speaker terminals and
automatically go to standby until the fault is removed. Once the fault is removed the siren will return to normal
operation.
Unpacking & Pre-installation
After unpacking your 3951 series siren, carefully inspect the unit and associated parts for any damage that
may have been caused in transit. Report any damage to the carrier immediately.
Installation & Mounting
The 3951 series siren is designed to be mounted in the 2-way radio case or other weather protected area.
Ease of operation and convenience to the operator should be the prime consideration when mounting the siren
and controls.
All devices should be mounted in accordance with the manufacturer’s instructions and
securely fastened to vehicle elements of sufficient strength to withstand the forces applied to the
device. Ease of operation and convenience to the operator should be the prime consideration when
mounting the siren and controls. Adjust the mounting angle to allow maximum operator visibility.
Do not mount the Control Head Module in a location that will obstruct the drivers view. Mount the
microphone clip in a convenient location to allow the operator easy access. Devices should be
mounted only in locations that conform to their SAE identification code as described in SAE
Standard J1849. For example, electronics designed for interior mounting should not be placed
underhood, etc.
Controls should be placed within convenient reach* of the driver or if intended for two person
operation the driver and/or passenger. In some vehicles, multiple control switches and/or using
methods such as “horn ring transfer” which utilizes the vehicle horn switch to toggle between siren
tones may be necessary for convenient operation from two positions.
*Convenient reach is defined as the ability of the operator of the siren systems to manipulate
the controls from his normal driving/riding position without excessive movement away from
the seat back of loss of eve contact with the roadway.
WARNING!
!