Tait TP9100 Service Manual

Also see for TP9100: User guide Product safety and compliance information User guide Service manual Manual

Contents

TP9100 Service Manual Description 29© Tait Electronics Limited May 20052.3.4 Accessory ConnectorThe 12 pins of the accessory connector and the chassis ground provide thestandard interface for external devices that are typically connected to a radio.The two I/O lines are reserved for use by certain accessories, and cannot beaccessed in the programming application. Audio lines can be programmedto tap into, or out of, different points in the audio processing chain. Formore information refer to the online help of the programming application.Table 2.4 Accessory connector pins and signalsPinout Pin Signal name Description Signal type1 AGND Analog ground Ground2 ACC PWR Switched 3.3V supply. Supply isswitched off when radio is switchedoff.Power3 ACC RXD Asynchronous serial port -Receive dataDigital, 3V3 CMOS4 AUD TAP OUT Programmable tap point out of theRx or Tx audio chain. DC-coupled.Analog5 ACC TXD Asynchronous serial port -Transmit dataDigital, 3V3 CMOS6 ACC MIC Accessory microphone input.Electret microphone biasingprovided. Dynamic microphones arenot supported.Analog7 ACC GPIO2 Programmable function anddirection.Digital, 3V3 CMOSinput; open collectoroutput with pullup8 AUD TAP IN Programmable tap point into the Rxor Tx audio chain. DC-coupled.Analog9 ACC–SPKR Accessory speaker output.Balanced load configuration.Analog10 ACC GPIO1 Programmable function anddirection.Digital, 3V3 CMOSinput; open collectoroutput with pullup11 ACC+SPKR Accessory speaker output.Balanced load configuration.Analog12 ACC PTT PTT input from accessory,multiplexed with accessory functionkey.AnalogBCGFDE I1)1@ HJ1!Chassis GNDrear view of radio