3 ms·
Its my understanding that the reason for RS-422 (or 485) versus 232 is when you want long cable runs (say, over 10m). Not sure why this would matter much for co
by ac29 8y ago
Its my understanding that the reason for RS-422 (or 485) versus 232 is when you want long cable runs (say, over 10m). Not sure why this would matter much for computer peripherals.
It would make more sense if AppleTalk used it, but it used a common ground, which eliminates the benefits of the balanced signals.
- pstuart 8y agoIt was a unified high speed interface that could do both. Farallon came up with cheap network adapters that allowed Macs to talk to each other (and a LaserWriter!) over local phone wiring. That was huge -- plug and play networking for mortals. Source: worked at Farallon way back when.
- watersb 8y agoI was around the corner, the Mac network admin at Chiron. Hundreds of Macs, running on single-pair UTP. Good times. :-)