Carson SA-400-17 manual Mounting, Electrical Connections

Page 6 of 12 SA-400-17 Installation and Operating Instructions

MOUNTING

The mounting bracket supplied can be installed above or below the unit. Choose a mounting location convenient to the operator and away from any air bag deployment areas. Inspect behind mounting area for clearance. Assure adequate ventilation to prevent overheating. Consider wire routing and access to connections, as well as microphone bracket placement. Install mounting bracket to vehicle using 1/4" hardware (not supplied).

If mounting in a rack or console, make sure that mounting bolts do not enter case more than 1/4".

ELECTRICAL CONNECTIONS

Electrical connections to the unit are made using the wiring harness supplied. If the unit needs service the connector can be easily removed without unwiring the harness.

The power supply for the unit 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 rear of the unit protects from overload.

Disconnect vehicle battery before making any electrical connections. Extend leads using adequately sized wiring and terminals or splices.

Wire Size and Termination - The diagram shows the minimum wire size used for each connec- tion, along with recommended lead color. 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.

Radio Input Connection (Optional) - 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.

Auxiliary Input Connection (Optional) - Used for Siren Control. Performs the same function as Siren push-button. Typically connected to the horn ring circuit of the vehicle or other momentary switch. See below for further details on activation polarity.

NOTE: Permanent disconnection of the vehicle horn is NOT recommended.

Traditional Auxiliary Input Activation - On earlier models of the SA-400, the auxiliary input is activated with positive (+VDC) AND negative (-VDC). A normally open horn ring circuit or switch is required for proper operation.

Possibly use this setting if the auxiliary input is wired for an earlier SA-400. See OPTION SWITCHES section for further details.

Polarity Selectable Auxiliary Input Activation - The auxiliary input may be activated with positive (+VDC) OR negative (-VDC).

See OPTION SWITCHES section for further details.

08/06/08 CP5012A