AMPLIFIER ELECTRICAL CONNECTIONS
Disconnect vehicle battery before making the following electrical connections.
Electrical connections to the amplifier are made using the wiring harness supplied. If the amplifier needs service the connector can be easily removed without unwiring the harness. The power supply for the amplifier must be capable of delivering peak currents up to 50 amps for adequate short circuit protection and reliable operation. The preferred source is directly at the vehicle battery. A fuse on the unit protects from overload.
Wire Size and Termination - The diagram shows the minimum wire size used for each connection. If the wire is longer than 10 ft. use the next larger wire size. Use only high quality crimp connectors for installation on the vehicle.
Negative Connection (Black) - Both leads must be used. Connect to negative battery connector or high current buss.
Positive Connection (Red) - Both leads must be used. Connect to positive battery connector or high current buss. A power relay may be used.
Speaker A Connection (Brown) - Both leads must be used. Connect 1 lead to each terminal or lead of the speaker. Connect in same polarity (phasing) as Speaker B to assure loudest siren sound.
Speaker B Connection (Orange) - Both leads must be used. Connect 1 lead to each terminal or lead of the speaker. Connect in same polarity (phasing) as Speaker A to assure loudest siren sound.
Control Connection (White) - Connect to white lead from control head. Route this lead away from radio transmitter antenna lead to prevent RF interference being fed to the siren amplifier.
Optional Radio Input Connection (Blue) - Connect 1 lead to each terminal of the radio speaker or output connector. The input is isolated and polarity is not important. May need to set RADIO VOLUME ADJUST on side of unit.
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| #14 AWG BLK | ||||||||||
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| Use both leads | ||||||||||
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BAT | - |
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| #14 AWG RED |
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SPKR |
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| #18 AWG BRN |
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A |
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| #18 AWG BRN/BLK |
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Extend spkr leads with #16 |
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SPKR |
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| #18 AWG ORG |
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B |
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| CP3877 |
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| CABLE | |
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For loudest siren sound be sure speakers are wired in same polarity.
AMPLIFIER POWER
HARNESS CONNECTIONS
TB0335B
| CONTROL HEAD | (CP3040 CABLE) | ||
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OFF/ON | RADIO |
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| GRN (AUX) |
SIREN | PA |
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| HRN/TT | VOL | YEL (DASH LIGHTS) | |
| MAN |
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| WAIL | ON |
| BLK |
| YELP |
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| POWER |
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| RED (+VDC) | |||
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| WHT |
| AMPLIFIER |
| CONTROL | |
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RADIO VOLUME | (CP3889 |
| BLU TO TWO WAY | |
| RADIO SPEAKER | |||
ADJUST |
| CABLE) |
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| 15AMP FUSE |
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| AUTOMOTIVE TYPE |
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| FUSE A (SPKR A) |
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| FUSE B (SPKR B) |
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| (CP3877 CABLE) |
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| - ORG/BLK TO SPKR B - |
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| + ORG TO SPKR B + |
BLK TO |
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| - BRN/BLK TO SPKR A - |
RED TO +VDC |
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| + BRN TO SPKR A + | |
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Page 5 of 10 |
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| 10/18/03 | |