Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!lll-winken!taco!eos.ncsu.edu!escott
From: escott@eos.ncsu.edu (Erik Scott)
Newsgroups: comp.os.cpm
Subject: Need 3.5" 40-pin pinout
Keywords: IBM Alps 3.5 floppy
Message-ID: <1991Apr15.025123.17354@ncsu.edu>
Date: 15 Apr 91 02:51:23 GMT
Sender: news@ncsu.edu (USENET News System)
Reply-To: escott@eos.ncsu.edu (Erik Scott)
Organization: North Carolina State University
Lines: 13

I just got an IBM disk drive from a low-end PS/2.
It has a 40-pin edge connector and no power connector.
As some of the traces on the edge connector look MIGHTY
heavy, I guess it gets power from there.

Are the lower 34 pins the conventional 5.25" assignments?
What do the upper six pins carry?  39&37 are ground, and
   are tied to the same ground as 1,3,5..33
   35&36 are tied together.
The drive was made by Alps.

Many Thanks,
erik scott   escott@eos.ncsu.edu   (Bounce?  Nah!  Try scott@ecovsa.ncsu.edu)