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From: mstr@vipunen.hut.fi (Markus Strand)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Floppy cable Pinout
Message-ID: <1991May26.181114.4215@nntp.hut.fi>
Date: 26 May 91 18:11:14 GMT
References: <5997@mindlink.bc.ca>
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Reply-To: mstr@vipunen.hut.fi (Markus Strand)
Organization: Helsinki University of Technology
Lines: 49
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In article <5997@mindlink.bc.ca> Rick_Vandenberg@mindlink.bc.ca (Rick Vandenberg) writes:
>Does anyone have the pinout for a floppy drive? If there are any differences
>between the different densities, what are they?

Pin number	Pin name		
	2	-reduced Write current
	4	NC
	6	NC
	8	- index
	10	-Motor On 1
	12	- Drive Select 2
	14	- Drive Select 1
	16	- Motor On 2
	18	- Direction
	20	- Step Pulse
	22	- Write Data
	24	- Write Enable
	26	- track 00
	28	- Write protected
	30	- Read Disk
	32	- Head  Select
	34	- Disk Change
1,3,5,7,9,11,
13,15,17,19,21,
23,25,27,29,31,33  Ground


Red Stripe
-
1  3  5  7  9 11 13 15 17 19 21 23 25 27 29 31 33
2  4  6  8 10 12 14 16 18 20 22 24 26 28 30 32 34
	   -----------
             TWISTED between drive B and drive A

Controller    B          A
I-------------I----------I    
I-------------I------x---I     x = twist
I-------------I----------I
I-------------I----------I



Both HD and DD drives use the same connectors and pinouts,
controllers and drives differ not the interface.



Markus Strand
mstr@vipunen.hut.fi