Code-3 Undercover Siren User Manual download pdf (Page 4)

Terminal Block Connections

(-) - Negative (ground/earth) source of supply.

(+) - Application of +12 VDC to this terminal will cause the siren to activate and produce the "Wail"

tone.

A - (3050 Only) Application of +12 VDC to this terminal will produce "Air Horn" tone. Power need

not be supplied to (+) to terminal B.

B - Application of +12 VDC to this terminal while the siren is energized [+12 VDC on terminal (+)]

will produce the Yelp tone.

Common - Speaker common terminal.

58 - 58 watt speaker(s) terminal.

100 - 100 watt speaker(s) terminal. Note: Connection of a 58 watt speaker to this terminal and the

common terminal may destroy the speaker.

WARNING!

CONTINUED

WARNING!

Fuses or circuit breakers should be located as close to the power takeoff points as possible

and properly sized to protect the wiring and devices.

Particular attention should be paid to the location and method of making electrical

connections and splices to protect these points from corrosion and loss of conductivity.

Ground terminations should only be made to substantial chassis components, preferably

directly to the vehicle battery.

The user should install a fuse sized to approximately 125% of the maximum Amp capacity

in the supply line to protect against short circuits. For example, a 30 Amp fuse should

carry a maximum of 24 Amps. DO NOT USE 1/4" DIAMETER GLASS FUSES AS THEY

ARE NOT SUITABLE FOR CONTINUOUS DUTY IN SIZES ABOVE 15 AMPS. Circuit

breakers are very sensitive to high temperatures and will "false trip" when mounted in hot

environments or operated close to their capacity.

Speaker Connections

Determine the power rating of your speaker(s) at this point.

Speaker Phasing - Whenever two speakers are used from one amplifier (two 58 watt, two 100 watt,

or two 100 watt in the PSE200 configuration), they must be phased for maximum performance.

Phasing involves connecting both speaker terminals marked #1 on the speaker together and

connecting both speaker terminals marked #2 on the speaker together. Be sure to check the

speaker terminals for the numbers, as the wire colors or speaker installation may be arbitrary.

CONNECTION OF A 58 WATT SPEAKER TO THE 100 WATT TERMINAL WILL CAUSE

THE SPEAKER TO BURN OUT, AND WILL VOID THE SPEAKER WARRANTY!

The sound projection opening should be pointed forward, parallel to the ground, and not

obstructed or muffled by structural components of the vehicle. Concealed or under-hood

mounting in some cases will result in a dramatic reduction in performance. To minimize this

reduction, mount the speaker so the sound emitted is projected directly forward and

obstruction by vehicle components such as hoses, brackets, grille, etc. is minimized.

Electromechanical sirens and electronic siren speakers should be mounted as far from the

occupants as possible using acoustically insulated compartments and isolation mounting to

minimize the transmission of sound into the vehicle. It may be helpful to mount the device on

the front bumper, engine cowl or fender; heavily insulate the passenger compartment; and

operate the siren only with the windows closed.

Each of these approaches may cause significant operational problems, including loss of siren

performance from road slush, increased likelihood of damage to the siren in minor collisions,

and the inability to hear the sirens on other emergency vehicles. APPROPRIATE TRAINING

OF VEHICLE OPERATORS IS RECOMMENDED TO ALERT THEM TO THESE

PROBLEMS AND MINIMIZE THE EFFECT OF THESE PROBLEMS DURING

OPERATIONS.

SET-UP AND ADJUSTMENT

Any electronic device may create or be affected by electromagnetic interference. After

installation of any electronic device, operate all equipment simultaneously to insure that

operation is free of interference. The speaker to Common and 58 (58 watt) or common

WARNING!

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Code-3 Undercover Siren User Manual Page 4

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