Hard Drive: IBM: WD 12 10MB 5.25"/FH MFM ST506

W D   1 2    IBM
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders     306|     |     |
Capacity form/unform    10/   12 MB        Heads           4|     |     |
Seek time   / track  99.9/     ms          Sector/track   17|     |     |
Controller           MFM / ST506           Precompensation   296
Cache/Buffer               KB              Landing Zone
Data transfer rate    0.625 MB/S int       Bytes/Sector      512
                      0.625 MB/S ext
Recording method     MFM                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h
                                Warranty Month
Lift/Lock/Park     NO           Certificates

Layout

IBM WD-12/WD-25 PRODUCT DESCRIPTION

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XX J2
  |                                                         |XX
  |                                                         |XX
  |                                  Terminator +--------+  |  1
  |                                  Resistor   +--------+  |
  |                                                         |
  |                                                     S5-+|XX
  |                                                      | ||XX
  |                                                      1-+|XX J1
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |  1
  |                                                         |XX1 J3
  |                                                         |XX Power
  +---------------------------------------------------------+

Jumpers

IBM WD-12/WD-25 PRODUCT DESCRIPTION

Jumper Setting
==============

 S5  Drive Select
 ----------------
   +----------+--------------------------------+
   | Drive    |            Switches            |
   | Select   |   4   |   3   |   2   |   1    |
   +----------+-------+-------+-------+--------+
   |    1     | OPEN  | OPEN  | OPEN  | CLOSED |
   |    2     | OPEN  | OPEN  | CLOSED| OPEN   |
   |    3     | OPEN  | CLOSED| OPEN  | OPEN   |
   |    4     | CLOSED| OPEN  | OPEN  | OPEN   |
   +----------+-------+-------+-------+--------+