Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!udel!princeton!jonlab!jon From: jon@jonlab.UUCP (Jon H. LaBadie) Newsgroups: comp.sys.3b1 Subject: Re: Need 3b1-end pinouts for parallel interface Keywords: parallel pinout Message-ID: <922@jonlab.UUCP> Date: 22 Feb 91 17:27:31 GMT References: <12347@helios.TAMU.EDU> Distribution: na Organization: 4455 Province Line Rd., Princeton, NJ 08540 Lines: 42 Sorry Daryl, nothing against you, your posting just struck a sensitive cord: In article <12347@helios.TAMU.EDU>, dlb5404@tamuts.tamu.edu (Daryl Biberdorf) writes: > I was going to hook up the old C.Itoh Prowriter 8510 this weekend > when I noticed that my 3B1 uses a female centronics connector instead > of the more common DB-25 for its parallel port. After calling around, > no local businesses stock the male centronics-male centronics cable ARGGGGGGGGGGGH! More PC-centric hogwash! Prior to the IBM-PC, the primary parallel interface used the 36 pin "Centronics" connector. None, to my know- ledge, used a DB-25. Then big blue decided to make its serial port use the DB-9 and the parallel port use the DB-25 connector. Both against "industry" standards. I can still remember nievely connecting a modem to the DB-25 "serial" port on an IBM-PC and blowing 6 chips on the modem because of the higher voltages on the parallel port than the serial modem was designed for. Please, Convergent/AT&T got it right on the UNIX-PC. The parallel port is a 36 pin Centronics type connector. A male-male centronics cable can be obtained from any non-PC-CENTRIC supply house. I can remember a shouting match between me an a Rat Shack sales person over the phone who claimed there was no computer in the WORLD that had a 36 pin connector. I said I was looking at a UNIX-PC and it had one. He said he had a UNIX-PC at home just like the one for sale in the store and it did not have a 36 pin connector! ARRRRRRGH. Sorry for the Band Width, I'm not enamored with PC"s. ;-) Jon -- Jon LaBadie {att, princeton, bcr, attmail!auxnj}!jonlab!jon Brought to you by Super Global Mega Corp .com