X-Andrew-WideReply: netnews.comp.periphs.scsi,netnews.comp.sys.mac.hardware,netnews.comp.sys.amiga.hardware X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Received: via nntpserv with nntp; Thu, 19 May 1994 05:20:32 -0400 (EDT) Newsgroups: comp.periphs.scsi,comp.sys.mac.hardware,comp.sys.amiga.hardware Path: andrew.cmu.edu!bb3.andrew.cmu.edu!honeydew.srv.cs.cmu.edu!nntp.club.cc.cmu.edu!godot.cc.duq.edu!news.duke.edu!MathWorks.Com!europa.eng.gtefsd.com!howland.reston.ans.net!EU.net!sunic!news.uni-c.dk!diku!mojo From: mojo@diku.dk (Morten J|hnk) Subject: Re: DB25 SCSI pinout Message-ID: <1994May19.083429.8289@odin.diku.dk> Sender: mojo@embla.diku.dk Date: Thu, 19 May 1994 08:34:29 GMT References: Organization: Department of Computer Science, U of Copenhagen Lines: 31 Xref: bb3.andrew.cmu.edu comp.periphs.scsi:13169 comp.sys.mac.hardware:61795 comp.sys.amiga.hardware:33198 phil@chomsky.arts.adelaide.edu.au (Phil Kernick) writes: >Could someone please tell me the pinout for a DB25 SCSI cable. [snatched from an old article] DB25 50pin Signal ---------------------- 8 2 -DB0 21 4 -DB1 22 6 -DB2 10 8 -DB3 23 10 -DB4 11 12 -DB5 12 14 -DB6 13 16 -DB7 20 18 -DBP 17 32 -ATN 6 36 -BSY 5 38 -ACK 4 40 -RST 2 42 -MSG 19 44 -SEL 15 46 -C/D 1 48 -REQ 3 50 -I/O On the DB25, pins 7,9,14,16,18, and 24 connect to ground. On the 50 pin connector, all odd pins except 25 connect to ground.