![]() This pin is capable ofĭriving a low current relay coil, where the contacts could activate a horn or light +12V, all the other pins float high and actively pull low. Pin 4 is the only pin whose circuitry floats low and actively pulls high to to You don't even need to plug in an accessory connector at all. Unlike the MaxTrac/Radius/GM300, you don't need any jumpers installed on theĪccessory connector to make the radio operate with the internal speaker. Outputs are driven low by transistors that pull to ground. Like the GM300 the pins (other than pin 4) programmed as Programmable Digital Input and Output pins are terminated with some resistance to Pin numbersĪnd signal names in square brackets are defaults or suggested alternatives. Signals on both radio series these are listed in the " Eq" column. The connectors are madeīy AMP and can also be bought at Digikey and Mouser. ![]() The same physicalĬontact pins are used one is Digikey p/n 1-87309-3-ND. The middle 16 pins will accept the standard MaxTrac/Radius/GM300ġ6-pin locking accessory connector, Digikey p/n 104422-1-ND. The CDM-series mobile radios use a 20-pin locking accessory connector, Digikey Motorola CDM-series Mobile Radio Accessory Connector
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