Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!mips!daver!news.chips.com!chuckl From: chuckl@chips.com (Chuck Linsley) Newsgroups: comp.periphs.scsi Subject: Re: SCSI cable Message-ID: <703@news.chips.com> Date: 22 Oct 90 21:21:27 GMT References: <1990Oct17.022235.22598@tkou02.enet.dec.com> <1990Oct19.164911.24264@com50.c2s.mn.org> Reply-To: chuckl@news.UUCP (Chuck Linsley) Organization: Chips and Technologies, San Jose, CA Lines: 29 In article <1990Oct19.164911.24264@com50.c2s.mn.org> chris@com50.c2s.mn.org (Chris Johnson) writes: >Sun calls the SCSI connectors on the rear of the SPARCstations a >micro-miniature SCSI connector. These connectors have 50 pins. > >I don't believe that the SCSI 2 specifications include that connector >as one of the standard connectors, but I could be wrong. Does someone >have a copy of the spec. and would be willing to check? I'm not sure what is on the SPARCstation, but SCSI 2 specifies a high-density connector with 2 rows of pins on 0.05 in (1.27 mm) pitch, with 0.1 in (2.54 mm) spacing between the rows. >I think it's probably a misnomer to call that connector a SCSI 2 >connector. Sun implements a few of the SCSI 2 command features in its >latest machines, but does not, for example, support fast or wide SCSI 2. It doesn't have to support fast or wide to be SCSI 2; they're options. As long as they implement the features that are mandatory, it's SCSI 2. >I can just imagine what all this connector conversion stuff does to >cable impedances being correct. Don't worry; it probably wasn't right anyway. ;-) Chuck Linsley Chips and Technologies, Inc. Mass Storage Operation #include chuckl@chips.com