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: -------------------------cut----------------------- Message 1 of 1 in this thread [Image]help[Image] + [Image]Return[Image] to current thread Re: PS/2 2.88 floppy question Author: Peter H. Wendt 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 [Image]http://members.aol.com/mcapage0/mcaindex.htm[Image] *** Direct replies to: [Image]peterwendt@aol.com[Image] only ! *** -------------------------cut----------------------- Servus, Willy! ======================================================= Bye, Vitus --- * Origin: And God said, "Windows 95", and the whole world crashed (2:2474/424.1) .