What size fuses does this siren controller require at the battery?

Two customer-supplied 40 amp fuses on the battery feed wires, and the warning states all customer-supplied battery positive wires must be sized for at least 125% of maximum operating current and fused at the battery.

What is the pinout of the 12-pin siren input connector?

Pin 1 RED +Battery, 2 BLK Ground, 3 BLU Radio, 4 RED +Battery, 5 BLK Ground, 6 BLU Radio, 7 BRN Speaker Com, 8 ORN +Speaker 2, 9 VIO Park Kill, 10 GRY Horn, 11 WHT Horn Ring, 12 YEL +Speaker 1.

What are the current ratings of the outputs?

All outputs are 12 VDC. Individual outputs (1, 2, 6-11) are rated 10 amps; the combined outputs 3/4/5 are rated 30 amps. Output 12 is the backlight.

What do switches S4 through S9 control?

Per the table, S4 controls output 6, S5 output 7, S6 output 8, S7 output 9, S8 output 10, and S9 output 11, each at 12 VDC and 10 amps.

What does DIP switch position S10-1 do?

S10-1, associated with the S1 RED position, is the SIREN ENABLE function.

Home/ Registry/ Ford/ LTD Crown Victoria/ 1983-1991/ 1991 Ford LTD Crown Victoria/ Photo supermotors.net/registry/media/744398

Police Siren Control Head Wiring Label - Pinout, DIP Switch & Output Ratings

Siren control box label with fuse, DIP-switch and connector pin/function chart

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Equipment label showing fuse rating, DIP switch settings, output voltage/current table and a siren-input connector pin/color/function chart.

AI caption July 2009 · Photo 991 of 2920

This document is a photographed wiring/connection label affixed to the back of an emergency-vehicle siren and switch control head (uploaded to the gallery of a 1991 Ford Crown Victoria, likely a police package car). It shows rear-view and front-view diagrams of the control unit, including the locations of 12 output terminals, two battery feed studs requiring two customer-supplied 40 amp fuses, slide switch (DIP switch) connectors S10 and S11 with positions 1-5, and front-panel switches S1 (GRN/YEL/RED slide switch) and S4 through S9. A 12-pin 'Siren Input Conn' pinout table lists wire colors and functions: RED +battery, BLK ground, BLU radio, BRN speaker common, ORN +speaker 2, VIO park kill, GRY horn, WHT horn ring, and YEL +speaker 1. A configuration table maps DIP switch positions S10-1 through S11-5 and switches S4-S9 to outputs 1-12, all at 12 VDC, rated 10 amps (single outputs) or 30 amps (combined outputs 3/4/5), with output 12 serving as backlight. A warning states customer-supplied wires to the battery positive terminal must be sized for at least 125% of maximum operating current and fused at the battery.

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Frequently asked questions

What size fuses does this siren controller require at the battery?: Two customer-supplied 40 amp fuses on the battery feed wires, and the warning states all customer-supplied battery positive wires must be sized for at least 125% of maximum operating current and fused at the battery.
What is the pinout of the 12-pin siren input connector?: Pin 1 RED +Battery, 2 BLK Ground, 3 BLU Radio, 4 RED +Battery, 5 BLK Ground, 6 BLU Radio, 7 BRN Speaker Com, 8 ORN +Speaker 2, 9 VIO Park Kill, 10 GRY Horn, 11 WHT Horn Ring, 12 YEL +Speaker 1.
What are the current ratings of the outputs?: All outputs are 12 VDC. Individual outputs (1, 2, 6-11) are rated 10 amps; the combined outputs 3/4/5 are rated 30 amps. Output 12 is the backlight.
What do switches S4 through S9 control?: Per the table, S4 controls output 6, S5 output 7, S6 output 8, S7 output 9, S8 output 10, and S9 output 11, each at 12 VDC and 10 amps.
What does DIP switch position S10-1 do?: S10-1, associated with the S1 RED position, is the SIREN ENABLE function.