Xref: utzoo comp.sys.amiga.hardware:5793 comp.periphs.scsi:1736 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!dali.cs.montana.edu!ogicse!intelhf!agora!billsey From: billsey@agora.rain.com (Bill Seymour) Newsgroups: comp.sys.amiga.hardware,comp.periphs.scsi Subject: Re: cabling Message-ID: <1991Jan24.175039.3477@agora.rain.com> Date: 24 Jan 91 17:50:39 GMT References: <2331.AA2331@caleb> Organization: Open Communications Forum Lines: 46 In article <2331.AA2331@caleb> jdp@caleb.UUCP (Jim Pritchett) writes: : :I asked about putting my internal SCSI drives into an external box (Mini :Tower PC type case.) Specifically, I asked about cabling. : :> What did you find out? : :Well, I got several answers, one of which was incorrect. Basically, they :were: : : 1. Make a cable. : 2. Buy a Mac SCSI cable and then direct connect it to 50 conductor : ribbon. (WRONG!) : 3. Buy a cable from X... : :I used the A2090 manual to get the information for the A2090 connectors. I :used an ohmmeter to get the Mac info from a Mac SCSI cable. Here it is: I haven't really cross checked your pinouts, but are you sure you're not just looking at two different numbering schemes? The standard 50 pin SCSI connector is numbered something like this: 01 03 05 07 ... 02 04 06 08 ... and it's very possible the centronics type connector is numbered like this: 01 02 03 04 ... 26 27 28 29 ... This might account for the pin number differences you see. I know that on my 3000, I was able to just use a standard Mac cable from the 3000 to the drive case, and a ribbon cable with a 50 pin IDC connector and a 50 pin centronics connector crimped on. This implies a 1:1 correspondence between the cables. :Thanks to all who tried to help. : : Jim Pritchett : : :UUCP: texsun.central.sun.com!letni!rwsys!caleb!jdp : or spudge.lonestar.org!caleb!jdp : or letni.lonestar.org!dms3b1!caleb!jdp -- -Bill Seymour billsey@agora.uucp or billsey@agora.rain.com ***** American People/Link Amiga Zone Hardware Specialist NES*BILL ***** Bejed, Inc. NES, Inc. NAG BBS NES BBX BBS Home Sometimes (503)281-8153 (503)246-9311 (503)656-7393 (503)640-9337 (503) 640-0842