Tait T2000 SERIES II Installation Manual

Also see for T2000 SERIES II: Service manual Service manual

Contents

7Note: T2000II radios are designed to operate from a nominal 12V negative earth supply, andrequire currents of up to 8A. (The radios will tolerate a supply voltage range of 10.8V to 16.0V).In vehicles with a 24V electrical system (e.g. many trucks), it is essential to provide a suitablyrated 24/12V converter (e.g. Tait T2007) to isolate the radio from the battery and protect itagainst excessive voltages.6. If the economizer is to be controlled by the ignition line, terminate a wire in the powerconnector and connect the ëignitioní wire to a +12V supply which is live only when thevehicleís ignition is switched ëOní.External Wire (Horn/Hush/Emergency)The T2000II can be configured to operate the vehicleís horn, radio or a hidden switch:1. Terminate a suitable length of wiring in the ìexternalî port of the power connector.2. Run the free end of the external wire from the power connector to the appropriate vehiclewiring.The optionís interface is usually configured to switch or be switched in the ground state. Con-firm the exact operation in the documentation supplied with the interface unit.Remote Control Head OptionThe control head of some T2000II models may be supplied ready for mounting remotely fromthe radio chassis. In this case the control head should be located away from direct sunlight, andthe cable connecting it to the radio should be routed away from the antenna with care taken toensure that the cable will not be subject to damage.If it is necessary to run the cable through a bulkhead or similar obstruction, you may unplug thecable from the control head as follows:1. Unscrew the rear of the control panel and lift off the rear cover, taking care not to lose thetwo nuts located on each end.2. Disconnect the red connector from the printed circuit board socket to free the cable.3. Route the cable as required, fitting grommets where necessary to prevent chafing of thecable insulation.4. Fit the red connector to the printed circuit board socket ñ the connector is shaped so thatit can be fitted in the correct orientation only.5. Refit the cable to the cable clamp on the rear cover and slip the two nuts into the recepta-cles at each end of the rear cover.

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