donm@pnet07.cts.com (Don Maslin) (05/15/91)
gathings@hydra3b.cs.utk.edu (Golando Gathings) writes: >I am trying to make a db9 to db25 null modem cable , and need the pinouts > >for a serial db9 connector. If any one has any ideas on this please let me know > Alternate Asynchronous Adapter Connector Male 9=Pin D-Sub, cable requires female. DB9 I/O Description DB25 1 < DCD (Data Carrier Detect) 8 2 < RX (Receive Data) 3 3 > TX (Transmit Data) 2 4 > DTR (Data Terminal Ready) 20 5 GND (Signal Ground) 7 6 < DSR (Data Set Ready) 6 7 > RTS (Request To Send) 4 8 < CTS (Clear To Send) 5 9 < RI (Ring Indicator) 22 Keeper of the CP/M System Disk | UUCP: {nosc ucsd crash ncr-sd}!pnet07!donm Archives for the Dino(saur)SIG | ARPA: simasd!pnet07!donm@nosc.mil - San Diego Computer Society - | INET: donm@pnet07.cts.com