Price $4.
LIMITED WARRANTY The Signal Division, Federal Signal Corporation (Federal), warrants each new product to be free from defects in material and workmanship, under normal use and service, for a period of two years on parts replacement and one year on labor from the date of delivery to the first user-purchaser.
SECTION I GENERAL DESCRIPTION The Model PA300 Series can drive one 11-ohm impedance, high power (100W) or low power (58W) speaker. The Tap II feature allows the driver to change the siren sound from wail to yelp (or vice-versa) via the vehicle’s horn ring. Tap II provides especially effective traffic clearing capability.
SECTION II SPECIFICATIONS Input Voltage ............................................................... 11VDC to 15VDC. Polarity ......................................................................... Negative ground only. Standby Current (MANUAL) ...................................... 60ma (typical). Operating Temperature Range ................................... -30°C to +65°C. Operating Current (Wail mode) .................................. 10 amperes, max. (@ 13.
SECTION III INSTALLATION SAFETY MESSAGE TO INSTALLERS OF ELECTRONIC SIRENS • Sound output will be severely reduced if any objects are in front of the speaker. If maximum sound output is required for your application, you should ensure that the front of the speaker is clear of any obstructions. • Install the speaker(s) as far forward on the vehicle as possible, in a location which provides maximum signaling effectiveness and minimizes the sound reaching the vehicle’s occupants.
MOUNTING UNDER DASH CAUTION 1/4" SPLIT LOCKWASHER 1/4-20 HEX NUT CAUTION Damage to unit will occur if not properly fused. Ensure that an in-line fuse (20A) and fuseholder are installed in the red power cable lead. 1/4-20 x 3/4" HEX HD CAP SCREW 1/4-20 x 1/2" HEX HD. CAP SCREW WITH LOCKWASHER MUST BE USED AS SHOWN LONGER SCREW WILL CAUSE CIRCUITRY DAMAGE. 3-1. UNPACKING. MOUNTING BRACKET 1/4-20 x 1/2" HEX HD.
CAUTION To avoid damage to the unit, the 1/4-20 x 1/2 hex head cap screws and the 1/4 split lockwashers must be used as shown in figure 3-1. 4 E. Tilt the unit to the desired position. Tighten the 1/4-20 x 1/2 hex head screws. 2 3-3. POWER CABLE INSTALLATION.
VEHICLE HORNS Power for the siren can be obtained from the vehicle’s power distribution center or directly from the vehicle battery. If power is going to be obtained directly from the vehicle battery, drill a hole in the vehicle firewall for the power lead to enter the engine compartment. Place a grommet or similar device in the hole to protect the wire against damage from rough edges.
1. Connect the in-line fuseholder lead to the positive (+) battery terminal. D27 C20 R11 C8 IC7 R21 C29 R51 IC3 IC1 + 2. Connect the black wire to the negative terminal of the battery. C49 AIR HORN J9 C7 IC5 + J9 R20 R15 R22 3-4. AIR HORN PRESS-AND-HOLD MODIFICATION. PEAK PEAK AIR HORN J8 IC6 D25 R16 PEAK The unit comes from the factory set so that the peak-and-hold sound will be heard when the Selector switch is set to MANUAL and the vehicle horn ring is activated.
SECTION IV OPERATION SAFETY MESSAGE TO OPERATORS OF FEDERAL SIGNAL ELECTRONIC SIRENS AND LIGHT/SOUND SYSTEMS • WARNING The lives of people depend on your safe operation of Federal products. It is important to read and follow all instructions shipped with the products.
A. 4-1. GENERAL. All controls utilized during normal operation of the Model PA300 are located on the front panel (see figure 4-1). RADIO. In this position, incoming radio messages are amplified by the siren and rebroadcast over the outside speaker. The wired-in noise cancelling microphone provides high quality voice reproduction in the public address mode. The microphone push-to-talk switch will override all siren functions, except radio rebroadcast, for instant PA use. B. MANUAL.
PRESS AND HOLD FUNCTIONS (Models 690000 and 690001) 4-5. TAP II FUNCTIONS. Tap II allows the driver to change the siren sound via the vehicle’s horn ring. This feature is especially effective for clearing traffic.
SECTION V SERVICE AND MAINTENANCE • SAFETY MESSAGE TO PERSONNEL SERVICING FEDERAL SIGNAL ELECTRONIC SIRENS WARNING The lives of people depend on your proper servicing of Federal products. It is important to read and follow all instructions shipped with the products. In addition, listed below are some other safety instructions and precautions you should follow: • Read and understand all instructions in this manual before servicing the electronic siren or speaker.
5-2. REPLACEMENT PARTS LIST. Description Description Part Number Transistor, Output, BUT70W Transformer, Output Fuse, 20A, 3AG, 32V Switch, Rotary Switch, Toggle Header, 10 Pole Molex Microphone (690000 and 690001) Optional Microphone (690002 and 690004) Microphone Clip Microphone Strain Relief Knob, Gain Control Knob, Selector Circuit Board Assy. (690000) Circuit Board Assy. (690001) Circuit Board Assy. (690002) Circuit Board Assy.
2561788A REV. A 104 Printed in U.S.A.