Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!bu.edu!dartvax!eleazar.dartmouth.edu!stevel
From: stevel@eleazar.dartmouth.edu (Steve Ligett)
Newsgroups: comp.periphs
Subject: Re: floppy disk pin assignments
Keywords: 3 1/2 " floppy disk
Message-ID: <22397@dartvax.Dartmouth.EDU>
Date: 30 May 90 14:21:06 GMT
References: <859@seti.inria.fr>
Sender: news@dartvax.Dartmouth.EDU
Organization: Dartmouth College, Hanover, NH
Lines: 25

In article <859@seti.inria.fr> hb@bdblues.inria.fr (Bertrand Hutin (GIP-Syseca Logiciel)) writes:
>Sony MPW11. 
>Do all 3.5 floppy-disk drives have the same pinout (as for the 5.25 drives)?

Sony lists two interfaces on the back of their "Mass Storage Product
Line Card".  Most pins are the same except:

pin  Sony Interface     PC Interface
     (Shugart type)     (IBM Type)

1    Disk Change Reset  Ground
2    Disk Change        Not Connected
4    In Use             Not Connected
34   Ready              Disk Change

For 30 mm high drives, mp-f63w-01d and mp-f73w-01d are listed as PC
interface, other mp-f52w, mp-f53w, mp-f63w, and mp-f73w are listed as
Sony interface.

For 25.4 mm high drives, mp-f11w-l3/1 and mp-f17w-l5/1 are Sony
interface, the rest of the mp-f11w's and mp-f17w's are listed as PC
(or PS/2!?)  interface.

--
steve.ligett@dartmouth.edu or ...!dartvax!steve.ligett