3 ms·
CTS, DCD, DSR, DTR, GND, PG, RI, RTR, RTS, RxD, TxD (alphabetically) makes around 11, I think.
by kps 1y ago
CTS, DCD, DSR, DTR, GND, PG, RI, RTR, RTS, RxD, TxD (alphabetically) makes around 11, I think.
- II2II 1y agoIf I recall correctly, the DB-25 RS-232 cables also facilitated two serial connections.
- kps 1y agoYou do. (I've never seen that used, though.)
- chillingeffect 1y agoPlus the differential versions of most of those signals for long distance doubles the number of pins. And they have optional synchronous clocks. I did some WAN work for 3Com back in the day... :)
- cestith 1y agoA few devices back in the day could be powered over DB-25 connections besides the communications, even. Some in factories might still be.
- raverbashing 1y agoYes and then we came up with soft flow control for the win