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Classic macs had RS-422 not RS-232 ports so you'll need more than just a dumb cable to get it working with a PC.
by inferiorhuman 2y ago
Classic macs had RS-422 not RS-232 ports so you'll need more than just a dumb cable to get it working with a PC.
- kalleboo 2y agoThe Mac RS-422 ports are backwards compatible with RS-232, dumb cables work fine. No Mac users were buying special RS-422 modems back in the day, we all used standard PC RS-232 modems and they worked fine with just a dumb cable. Even Apple's own serial printers were just RS-232.
- ruslan 2y agoYou are right, but it's possible to connect RS-422 to RS-232 using just proper wiring [1]. Basically, same three wires and one loop wire for RX+ to ground. It's not reliable and not recommended, but works and would solve the problem. :-) 1. https://stratusengineering.com/rs232-rs422485-conversion-cable-connection-requires-no-external-electronics-power/ https://stratusengineering.com/rs232-rs422485-conversion-cab...