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Hardware It is possible to connect the RS232 serial cable with a current Windows PC using a compatible RS232-USB adapter. I have a 'Belkin PDA Adaptor', which works well and has 64-bit drivers for ...

(This answer is based on the MAX2312 capabilities, so only relevant for machines using it, which are, as per Question edit, all Psion 3C and later) I have read that the serial port was powered by a ...

I have now found an alternative way to sync data between the Psion and the Windows PC (including 64-bit Windows 10), which is harder to set up but easier to use. Install the Symbian EPOC SDK, ...

Yes it does work at RS-232 voltages. At least on a Psion Series 5 device, the MAX3212 RS-232 transceiver is inside the Psion, so the Psion will directly use RS-232 voltage levels. The actual voltage ...

Connecting an email client without SSL to a modern server requires some sort of SSL gateway on another machine. For example, under Linux you might run a command like socat -v ssl:imap.gmail.com:993,...

Not an out-of-the-box solution, but yyzkevin has a Raspberry Pico W PCMCIA card (as in: the Rasppi is on the card). As it's a Raspberry, emulating a serial port via software shouldn't be a problem, as ...