**Anyway**, the first thing to note is that half of the board does basically the same thing: we still got four FSK modems and two serial-to-parallel converter IC's. According to the TA123293's schematic(({{ :telephony:43_00_13.pdf |}})), the DTMF IC is connected in parallel, completely independent to the FSK processing circuitry from the TIP and RING to the the addressing/data lines. So it's really two cards in one.
**Anyway**, the first thing to note is that half of the board does basically the same thing: we still got four FSK modems and two serial-to-parallel converter IC's. According to the TA123293's schematic(({{ :telephony:43_00_13.pdf |}})), the DTMF IC is connected in parallel, completely independent to the FSK processing circuitry from the TIP and RING to the the addressing/data lines. So it's really two cards in one.
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Though I haven't thus far been able to track down any schematics for KX-TD193(X), it seems that the addressing circuitry differs quite a bit from what we have on the DX/123293 version.
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Though I haven't thus far been able to track down any schematics for KX-TD193(X) (at least not for a price I'm prepared to pay, i.e. > $0), it seems that the addressing circuitry differs quite a bit from what we have on the DX/123293 version.
FIXME
FIXME
telephony/ta1232_td816_td1232_hw_arch.1745905139.txt.gz · Last modified: by prppedro