Tait TM8000 Series Accessories Manual

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Tait TM8000 Series Accessories Manual Manual pdf 19 page image

TM8000 Mobile Radio Accessories Manual TMAA01-01 Line-Interface Board 19March 2004 © Tait Electronics Limited2.2.3 Configuration ProcedureThe line-interface board configuration must be completed before the boardis installed in the radio, as the top side of the line-interface board is notaccessible once the board is screwed to the radio lid. To configure the line-interface board, carry out the following steps.1. Program the radio in which the line-interface board is beinginstalled with default line-interface test settings. The default testsettings are explained in the following tables.Note A general description of IOP_GPIO lines used with the line-interface board is given in Table 2.6 on page 23.2. Set the DIP switches on the line-interface board (S1) to the followingdefault test settings: DIP1 on (two-wire audio interface) DIP2 off DIP3 off DIP4 on (busy/gate = rx-gate) DIP5 on (busy/gate logic normal) DIP6 off DIP7 off (two-wire keying) DIP8 off (time delay enabled).Table 2.2 Line-interface default test settings in the Programmable I/O form, Digital tabPin Direction Label Action Active Debounce Signal State MirroredIOP_GPIO1 Input None External PTT 1 Low 60 None NoneIOP_GPIO2 Output 0 No Action Low None None NoneIOP_GPIO3 Output BUSY Busy Status High None None NoneIOP_GPIO4 Output FKEY F1 Key Statusa Low None Latching Nonea. One of the four control head function keys may be selected to control the line-interface AUX line,which turns the line-interface board on and off. For the associated LED to reflect the status of theline-interface board, the Function Key Action field on the Key Settings form must be set to ActionDigital Output Line.Table 2.3 Line-interface settings in the Programmable I/O form, Audio tabRx/PTT Type Tap In Tap In Type Tap In Unmute Tap Out Tap Out Type Tap Out UnmuteRx None A-Bypass In On PTT R7 D - Split Busy DetectEPTT1 T5 A-Bypass In On PTT None C-Bypass 0 On PTTTable 2.4 Line-interface settings in the PTT form, External PTT (1) tabField SettingAdvanced PTT PTT Transmission Type VoiceAudio Source Audio Tap In