Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!magnus.ircc.ohio-state.edu!tut.cis.ohio-state.edu!udecc.engr.udayton.edu!blackbird.afit.af.mil!lonex.radc.af.mil!aivax!fausett From: fausett@aivax.radc.af.mil (Mark L. Fausett) Newsgroups: comp.periphs.scsi Subject: Need help on electrical characteristics of SCSI bus Summary: Need help finding electrical characteristics of SCSI bus Keywords: scsi bus Message-ID: Date: 7 Feb 91 19:28:59 GMT Sender: usenet@lonex.radc.af.mil (USENET Account) Distribution: comp.periphs.scsi Organization: RADC Lines: 11 Nntp-Posting-Host: aivax.radc.af.mil I'm trying to attach a CDC Wreh VI to a NeXT machine. It formats, and reads very nicely. I'm getting scsi timeouts on writes though (write EVENTUALLY succeed, but several orders of magnitude delay over reads). I figure I've probably screwed the termination, cable impedance or both. Could this cause this symptom, if so, what is the proper cable impedance, and is the termination 220 or 330 ohms (or something else??) Thanks, Mark Fausett fausett@aivax.radc.af.mil