Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!mailrus!ames!uhccux!robin From: robin@uhccux.uhcc.Hawaii.Edu (Robin Amano) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Pinouts for DEC LA50 to IBM AT (9 pin Serial port) Keywords: DEC LA50 IBM DB9 SERIAL PRINTER CABLE Message-ID: <9082@uhccux.uhcc.Hawaii.Edu> Date: 21 Aug 90 19:41:54 GMT References: Reply-To: robin@uhccux.UUCP (Robin Amano) Distribution: usa Organization: University of Hawaii Lines: 31 In article srm@dimacs.rutgers.edu (Scott R. Myers) writes: > >Can someone mail me the Pinouts for the DEC LA50 printer to an AT DB9 >serial port. Thanx in advance... The pinouts for and IBM AT is: 1 DCD 2 RXD 3 TXD 4 DTR 5 SG 6 DSR 7 RTS 8 CTS 9 RI I don't know the exact pinouts for the DEC LA50, but since it's a printer it must be a DTE so depending on the strappings on your serial card, or software you could probably just use four wires: IBM DEC 2 RXD -------- 2 TXD 3 TXD -------- 3 RXD 4 DTR -------- 20 DTR 5 SG -------- 7 SG That's if your using hardware handshaking with DTR, if you are using xon/xoff all you need to use is rxd,txd, and sg. Oh, that's assuming the Dec is using a db25/RS232.