Subj : 2.88 MB Floppy Operations?
To : Rich Wonneberger
From : Vitus Jensen
Date : Sun Mar 18 2001 05:53 am
Moin Rich!
17.03.2001, Rich Wonneberger wrote a message to Vitus Jensen:
>> PS: I *do* have used 2.88 floppy drives in the past and there is just
>> now such a drive in front of me. Unfortunately it's from a PS/2 and
>> does not have a power connector. Made by Mitsubishi, manufactured for
>> IBM Corporation in 1993.
RW> I have seen many of the 2.88 floppy drives at work in disposal. All
RW> the ones I looked at did not have the power plug as you stated, and
RW> I azzumed that was the way they all come.
RW> Do you (or anyone) know if there is an adapter for these drives to use
RW> them in normal systems??
RW> If I could get a pin out of the single connector, maybe one could be
RW> fabricated with a break out type box??
The was a post on usenet which Willy Steger forwarded to me. But I always were
to lazy to try this out and besides: I only have a single drive and no 2.88MB
medium so there is no point in spending much work on it.
=================================== NETMAIL
====================================
Fran: Willy Steger 2:2474/400.6 30 Oct 2000
23:54:24
Till: Vitus Jensen 2:2474/424.1 31 Oct 2000
21:26:14
Aemne: 2.88 Floppy von IBM
================================================================================
Hallo Vitus!
Antwort auf eine Message von Vitus Jensen an Willy Steger:
VJ>>> Kennt jemand die Dinger und hat sie schon einmal an einen normalen
VJ>>> Disketten Controller angeschlossen? Am 34poligen Steckverbinder ist Pin
VJ>>> 3 mit *5V* bezeichnet, ist der Rest wie ueblich? Und was liegt
VJ>>> normalerweise auf Pin 3 (Masse?)? Na, alle Ideen wie ich das Ding in den
VJ>>> Rechner bekomme, werden gerne entgegengenommen. Und fuer die IBMer
unter
VJ>>> uns:
VJ>>> IBM FRU 64F4148
VJ>>> IBM ASM 64F5996
VJ>>> Mitsubishi MF356F-899MB
VJ> Ich werde den Dejanews Artikel mal suchen (wenn ich den finden kann, Deja
VJ> killt anscheinend ihre Datenbank: man findet immer weniger). Und sonst,
VJ> klar, ich halte Dich auf dem laufenden.
aus reiner Lageweile :-) hab ich auch nochmal ein paar Minuten gesucht und
zumindest das Pinout gefunden:
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Re: PS/2 2.88 floppy question
Author: Peter H. Wendt <
[email protected]>
Date: 2000/05/17
Forum: comp.sys.ibm.ps2.hardware
------------------------------------------------------------------------
Hi Alexander !
>Does anyone know, could I use PS/2 2.88 floppy drive with
>ordinar PC (I have 2.88 floppy in BIOS on my Intel FX motherboard).
>I have bought one at local flea-market, and seems it have no
>power connector... ;-(
The PS/2 FDD differs a bit from "ordinary FDDs" - it has integrated
power within the data connector. I don't think that it will work with
generica systemboards - or will at least require massive rewiring and
cutting out unused wires. There were however 2.88MB FDDs from Sony for
OEM machines ... these had been used with the IBM PC-330/350 and
730/750.
For feeding the curiosity I'd added a 2.88MB pinout here:
Pin-Out 34-pin double pin-row drives
3.5" 1.44 / 2.88MB PS/2
(Mod. 35 / 40 / 56 / 57 / 76 / 77)
OEM-manufacturers name: Mitsubishi MF356F-899MF
P/N 64F5996 / FRU 64F4148
+-------------------------------------------------+
|Pin|Signal Name |Pin|Signal Name |
|---+--------------------+---+--------------------|
| 1 |Ground | 2 |Data Rate Sel. 1 |
|---+--------------------+---+--------------------|
| 3 |+5 Vdc | 4 |Drive Type ID 1 |
| | | |Drive Status 1 + |
|---+--------------------+---+--------------------|
| 5 |Ground | 6 |+12 Vdc |
|---+--------------------+---+--------------------|
| 7 |Ground | 8 |- Index |
|---+--------------------+---+--------------------|
| 9 |Drive Type ID 0 |10 |Reserved |
| |Drive status 0 + | | |
|---+--------------------+---+--------------------|
|11 |Ground |12 |- Drive Select |
| |Drive status 2 | | |
|---+--------------------+---+--------------------|
|13 |Ground |14 |- Security Cmd. + |
|---+--------------------+---+--------------------|
|15 |Ground |16 |- Motor Enable |
|---+--------------------+---+--------------------|
|17 |Media Type ID 1 |18 |- Direction In |
| |Drive status 3 + | | |
|---+--------------------+---+--------------------|
|19 |Ground |20 |- Step |
|---+--------------------+---+--------------------|
|21 |Ground |22 |- Write Data |
|---+--------------------+---+--------------------|
|23 |Ground |24 |- Write Enable |
|---+--------------------+---+--------------------|
|25 |Ground |26 |- Track 00 |
|---+--------------------+---+--------------------|
|27 |Media Type ID 0 |28 |- Write Protect |
| |Drive status 2 + | | |
|---+--------------------+---+--------------------|
|29 |Ground |30 |- Read Data |
|---+--------------------+---+--------------------|
|31 |Ground |32 |- Head 1 Select |
|---+--------------------+---+--------------------|
|33 |Data Rate Sel. 0 |34 |- Diskette Change |
+-------------------------------------------------+
+ The drive status and security command signals are
used on an optional diskette drive that provides
removable media security RMS If both a 2.88 MB and
a 1.44 MB diskette drive are installed, the security
functions of the 2.88 MB drive are disabled.
NOTE: The media type ID signals are used for 2.88 MB
diskette drives only. If both a 2.88 MB and a 1.44 MB
diskette drive are installed, the media type ID
signals are disabled.
--
Very friendly greetings from Peter in Germany
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Servus, Willy!
======================<end>=================================
Bye,
Vitus
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* Origin: And God said, "Windows 95", and the whole world crashed (2:2474/424.1)