Tait TM8000 Service Manual
Also see for TM9000: Installation instructions
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Contents
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TA2922 Universal Line Interface Service Manual 13© Tait Electronics Limited March 20102 Circuit descriptionThe TA2922 Universal Line Interface is the TEL production copy of the AM8000-UIS board designed and manufactured by Tait Australia.The Universal Line Interface is a TM8000/TM9000 internal options board whichoccupies the internal options space within the TM series radio. It performs a rangeof flexible audio and digital interfacing between the radio and outside world via a9-way D-range socket.The function of each pin in the D-range socket can be user-selected to any of theboard’s available analogue or digital I/O lines by way of a solder shorting link in anI/O matrix. A number of pre-existing variants of the TA2922 are available withpre-populated pin functions and pre-calibrated line levels. Refer to “Connections”on page 9 for pin descriptions on the available variants.Key functions of the board are:■ each external connector pin function can be user-defined in hardware links■ isolated 2-wire or 4-wire balanced 600 ohm audio interfaceSK2internal optionsconnectorTA2922-xx line interface board13V8 switchedAUX-MICRSSIAUD_TAP_OUTRX_BEEP_INRX_AUDAUD_TAP_INTX and RX dataGPIO lines (x7)148257617-189-153.3V regulator3.3Vline out audioaudio sourceVR1W600transformerlevel monitorsource selectVR2W600transformerVR318F45K20microcontrolleroutputshiftregisterstatusLEDsupply voltagemonitorprofile selectlink (LK9)crystaloscillatorfactoryprogrammingconnector (S2)SK1external optionsconnectorisolated Gateand TX Keyoption linksTX Key inputoptocouplerGate output relaylow passfilteralarm beepgeneratoraudioleveldetectorRS-232 leveltranslatortechnicianprogrammingconnector (S1)open collectorRX Gate O/Pun-isolated TX-Key I/PGPIO lines (x5)TX and RX data + flow controlbalancedline inbalancedline outun-balanced line outline inleveladjustside tonetalk-throughlevel adjust(optional)un-balancedline inmuteline outlevel adjustI/Omatrix26 x 9polyswitch fuse 9-wayD-RangesocketSPI data |
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