lotus

previous page: Hard Drive: FUJITSU: M2322K MB 8,0"/FH    SMD
  
page up: Hard Drive Specs from FUJITSU
  
next page: Hard Drive: FUJITSU: M2381K MB 8,0"/FH    ESMD

Hard Drive: FUJITSU: M2372K 824MB 8,0"/FH HSMD




M 2 3 7 2 K    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 8"/FH                 Cylinders     745|     |     |
Capacity form/unform   824/      MB        Heads          27|     |     |
Seek time   / track  16.0/ 4.0 ms          Sector/track     |     |     |
Controller           HSMD                  Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    2.458 MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/24 V       Temperature *C         5 40    |    -40 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby            W     Altitude    km            3.000|        12.000
       idle               W     Shock        g         2       |
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      35000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

Layout

FUJITSU M2372K JUMPER SETTING

  +---------------------------------------------------------+
  |Main PCA                       +--+       ********       |
  |                               |  |SW5                   |
  |                               +--+                      |
  |                                             +--+        |
  |                                         +--+|  |        |
  |                                      SW2|  ||  |SW1     |
  |                                         +--++--+        |
  |                                                         |
  |                            +--++--+                     |
  |                         SW4|  ||  |SW3                  |
  |                            |  ||  |                     |
  |                            +--++--+                     |
  +---------------------------------------------------------+

Jumpers

FUJITSU M2372K JUMPER SETTING

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

 Terminal SW1 Main PCA
 ---------------------
 Key    3(2^2)  2(2^1)  1(2^0)  Disk address
 --------------------------------------------
        OFF     OFF     OFF           0
        OFF     OFF     ON            1
        OFF     ON      OFF           2
        OFF     ON      ON            3
        ON      OFF     OFF           4
        ON      OFF     ON            5
        ON      ON      OFF           6
        ON      ON      ON            7
 Keys 1 to 3 are used for setting the disk logical address (0 - 7).
 Switch positions are binary coded.

 Key 4
 -----
    ON  Enable
    OFF Disable

This drive supports the tag 4/5 functions. The user can select these
functions by setting Key 4. In the OFF position tag 4/5 are
disabled. Control units that do not support tag 4/5 require this set
to OFF.

 Key 5
 -----
    ON  Enable write protection
    OFF Disable write protection

 Key 6
 -----
    OFF Set device type to M2372K
    This key will always be OFF.

Tag 4/5 feature must be enabled to obtain device type status.

 Key 7
 -----
    ON  Variable Soft sector mode
    OFF Hard Sector mode

The user can select either hard sector or soft sector mode. In the
case of Hard Sector, the number of sectors per disk revolution must
be set.

Terminal SW2 Main PCA
---------------------

 Key 1
 -----
    ON  Calibration seek performed
    OFF Normal

Calibration seek must be executed at any time the main PCA is
replaced to optimise the servo control coefficient. To execute the
calibration seek set key 1 to the ON position and turn on the power.
Calibration seek is performed automatically. After completion, the
ST0 LED will blink. Set key 1 to the OFF position to put the drive
in the READY state.

 Key 2
 -----
    OFF Not used

 Key 3
 -----
    ON  Vertical mounting (on side)
        OFF     Horizontal mounting

This key adjusts the servo characteristics that depend on the
orientation of the drive.
NOTE: A wrong setting may cause seek or write offtrack errors.

 Key 4
 -----
    OFF Not used

 Terminal SW3 Main PCA
 =====================
 Sector counting
            Value
  ------------------------------
 Keys   7   128     (2^7)
        6    64     (2^6)
        5    32     (2^5)
        4    16     (2^4)
        3     8     (2^3)
        2     4     (2^2)
        1     2     (2^1)

 Terminal SW4 Main PCA
 ---------------------
       Sector counting
            Value
 -------------------------------
 Keys 7  16384 (2^14)
      6   8192 (2^13)
      5   4096 (2^12)
      4   2048 (2^11)
      3   1024 (2^10)
      2    512 (2^9)
      1    256 (2^8)

SW3 and SW4 are used in conjunction with each other and detemine the
required number of bytes per sector.

 Terminal SW5 Main PCA
 ---------------------
 Key    3     2     1   Delay in seconds
      -----------------------------------
       OFF   OFF   OFF         0
       OFF   OFF   ON          1
       OFF   ON    OFF         2
       OFF   ON    ON          3
       ON    OFF   OFF         4
       ON    OFF   ON          5
       ON    ON    OFF         6
       ON    ON    ON          7

 Specifies the the startup timing delay of the spindle motor to reduce
 the accumulation of +24V peak load current on power up in the case
 where a multiple drive supply is used.

Key 4
-----
OFF Not used













TOP
previous page: Hard Drive: FUJITSU: M2322K MB 8,0"/FH    SMD
  
page up: Hard Drive Specs from FUJITSU
  
next page: Hard Drive: FUJITSU: M2381K MB 8,0"/FH    ESMD