584 TMAA04-06 Linking and Interface Cable TM8100/TM8200 Service Manual© Tait Electronics Limited November 200731.2 Connecting to a GPS DeviceThe cable provides an RJ-45 socket, which is used to connect a TM8260dual radio system to a GPS device such as a Garmin-16HVSantenna/receiver (product code TMAA05-01). GPS data is sent from theantenna to both radios.31.2.1 InstallationPlug the GPS receiver/antenna directly into the RJ-45 socket. The socketis the correct type for the antenna, therefore the adaptor that is supplied withthe GPS antenna is not required.For information on antenna mounting, refer to the instructions providedwith your GPS device.31.2.2 Radio ProgrammingProgram one or both radios with GPS settings as required. For detailedconfiguration and programming information contact your local Tait dealer.31.3 Connecting to the Ignition SignalThe cable’s external interface connector can be used to connect a TM8260dual radio system to the vehicle’s ignition signal. This will turn the radiosystem off when the ignition key is off to avoid draining the battery, and willturn the radio system on when the ignition key is on.Note A TMAA04-05 ignition sense kit is available. The kit comprises amating plug for the radio’s auxiliary connector and a 13 foot (fourmetre) length of cable to connect to the vehicle’s ignition signal.31.3.1 InstallationConnect pin 4 of the external interface connector (AUX-GPI3) to the13.8V signal controlled by the vehicle’s ignition key.Note Make sure the ignition switch and the radio link LK2 are properlyconfigured to reduce the radio's power consumption. Refer to“TMAA04-05 Ignition Sense Kit” on page 581 for more infor-mation.31.3.2 Radio ProgrammingProgram both radios as shown in Table 31.5.Table 31.5 Ignition sense settings in the Programmable I/O form, Digital tabPin Mode Direction Label Action Active DebounceAUX_GPI3 All Input IGN_SENS Power Sense(Ignition)High 10
