
M 2 2 4 9 E    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders    1243|     |     |
Capacity form/unform   306/  389 MB        Heads          15|     |     |
Seek time   / track  18.0/ 4.0 ms          Sector/track   64|     |     |
Controller           ESDI                  Precompensation 65535
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      256
                            MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 45    |    -40 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby            W     Altitude    km            3.000|        12.000
       idle               W     Shock        g         2       |     20
       seek               W     Rotation   RPM      3600
       read/write    38.0 W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      30000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

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FUJITSU  M2247E/M2248E/M2249E  OEM MANUAL 41FH5015E-02

  +---------------------------------------------------------+
  |                           16+----+2                     |XX 20 Pin
  |                           15+CNH7+1                     |XX
  | +---+CN4                  16+----+2                     |XX
  | +---+CN5                  15+CNH6+1  15+-+16            |XB cable
  | +---+CN6                               | |              |
  | +---+                                  | |              |XX 34 Pin
  |                                       1+-+2             |XX
  |                                      15+-+16            |XX
  |                                        | |              |XX
  |                                        | |              |XX
  |                            16+----+2  1+-+2             |XX
  |     16+----+2              15+CNH1+1                    |XX
  |     15+CNH3+1                                           |XA cable
  |                                                         |
  |                                                         |
  |              16+----+2   3210                           |XX Power
  |              15+CNH4+1   **** Fault Lamp                |XX
  +---------------------------------------------------------+


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FUJITSU  M2247E/M2248E/M2249E  OEM MANUAL 41FH5015E-02

 Fault Lamps and Setting Plugs
 =============================

 Short plugs are inserted as follows when shipped from the factorry:

 CNH7: Between 1 and 2, 7 and 8, 9 and 10, 11 and 12, and 15 and 16
 CNH6: Between 1 and 2, and 15 and 16
 CNH5: Between 15 and 16
 CNH4: Between 11 and 12

 The following settings are model specific.
 CNH7: Between 3 and 4:                            M2249
       Between 5 and 6:                            M2248
       No short plugs between 3 and 4, or 5 and 6: M2247


 Jumper Settings
 ===============
 x = Jumpers are set from factory


 CNH5  READY LED lightning condition
 -----------------------------------
       15-16  OPEN   Drive select signal not gated
 x            CLOSE  Drive select signal gated


 CNH6  Drive select
 ------------------
        Drive    1     2     3     4     5     6     7
        ------+-----+-----+-----+-----+-----+-----+-----
 x      1- 2  |CLOSE|OPEN |OPEN |OPEN |OPEN |OPEN |OPEN
        3- 4  |OPEN |CLOSE|OPEN |OPEN |OPEN |OPEN |OPEN
        5- 6  |OPEN |OPEN |CLOSE|OPEN |OPEN |OPEN |OPEN
        7- 8  |OPEN |OPEN |OPEN |CLOSE|OPEN |OPEN |OPEN
        9-10  |OPEN |OPEN |OPEN |OPEN |CLOSE|OPEN |OPEN
       11-12  |OPEN |OPEN |OPEN |OPEN |OPEN |CLOSE|OPEN
       13-14  |OPEN |OPEN |OPEN |OPEN |OPEN |OPEN |CLOSE


 CNH6  Signal gate or not (Select signal)
 ----------------------------------------
       15-16  OPEN   Gate (daisy)
 x            CLOSE  No gate (radial)

       When the pins are shorted, the drive output signals are always
       enabled, regardless of Drive Select signal. Without a jumper
       here, the output signals are enabled only when the drive is
       selected.


 CNH7  Motor start control from interface
 ----------------------------------------
        1-2  OPEN   Yes
 x           CLOSE  No


 CNH7  Device Type selection (model specific)
 --------------------------------------------
        Device M2247 M2248 M2249
        ------+-----+-----+-----
        3- 4  |OPEN |OPEN |CLOSE
        5- 6  |OPEN |CLOSE|OPEN

 Settings are model specific


 CNH7  Sector setting
 --------------------
        Sectors/Track  16    18    19     32    34    35    64   36
        Bytes/Sector |1304 |1159 |1098 | 652 | 613 | 596 | 326 |320
        -------------+-----+-----+-----+-----+-----+-----+-----+-----
 x      7-8          |OPEN |OPEN |OPEN |OPEN |CLOSE|CLOSE|CLOSE|CLOSE
 x      9-10         |OPEN |OPEN |CLOSE|CLOSE|OPEN |OPEN |CLOSE|CLOSE
 x     11-12         |OPEN |CLOSE|OPEN |CLOSE|OPEN |CLOSE|OPEN |CLOSE

 Valid only in hard sector mode


 CNH7  Sector mode setting
 -------------------------
       13-14  OPEN   Drive hard sector
              CLOSE  Controller soft sector


 CNH7  Power ON Reset Condition
 ------------------------------
 x     15-16  OPEN   ATTENTION signal and bit 8 of Status byte are
                     set at the READY state just after power-on.
              CLOSE  ATTENTION signal and bit 8 of Status byte are
                     not set at the READY state just after power-on.


 Fault lamps
 ===========
        Drive fault states are displayed by the fault lamps (0,1,2,3)

 Item | Fault lamp| Drive State
      |  3 2 1 0  |
 -----+-----------+--------------------------------------------------
  1   |  x x x o  | Spindle motor rotation less than 90% of standard
  2   |  x x o x  | VCM over current
  3   |  x x o o  | Initial seek time out
  4   |  x o x x  | Write command during Seek operation
  5   |  x o x o  | +12V/+5V less than 80% of standard
  6   |  x o o x  | Off track during Write operation
  7   |  x o o o  | Write Echo check
  8   |  o x x x  | Two or more head ICs selected during Write
      |           | operation
  9   |  o x x o  | Seek time out
 10   |  o x o x  | Guard band detection during Seek operation
 11   |  o x o o  | Guard band detection during linear mode
 12   |  o o x x  | Overshoot check
 13   |  o o x o  | Seek command without ONTRACK signal true
 14   |  o o o x  | Head load signal lost after READY
 15   |  o o o o  | Read and Write commands simultaneously issued or
      |           | other miscellaneous faults
 16   |  x x x *  | Invalid or unimplemented command fault
 17   |  x x * x  | Interface time out fault
 18   |  x x * *  | Command data parity fault

         o = On    x = Off    * = Blinking

 Reset using Attention Reset command. Items 2 and 3 can only be
 cleared with power off.


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FUJITSU  M2247E/M2248E/M2249E  OEM MANUAL 41FH5015E-02

 Notes on installation
 =====================

 Installation direction
 ----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
      x           x                |  |     |           |     |  |
 +------x------x-------+           |  +-----+           +-----+  |
 +-+------x--x-------+-+           +--+                       +--+
   |       xx        |
   |     x    x      |
   +---x--------x----+
     x              x


 There are three possible installation directions, and the mounting
 angle must be   5* from the horizontal.

 Ambient temperature
 -------------------
 The operating temperature range of the drive is specified at a dis-
 tance of 3 cm from the drive.

 Multi-drive connection
 ----------------------
 In serial mode, up to 7 drives can be connected. The termination of
 the control signals must be performed only at the last drive. The
 terminator must be removed from all but the last drive. To connect
 drives, the A cable (control signals) must be connectesd in series
 and the B cables (R/W signals) in parallel.

 +----------+A cable         A +---------+
 |          +-----------*------+ Drive 1 |
 |    C     |B cable    |    B |         |
 |    O     +-----------|------+         |
 |    N     |           |      +---------+
 |    T     |           |
 |    R     |           |    A +---------+
 |    O     |           *------+ Drive 2 |
 |    L     |B cable    |    B |         |
 |    L     +-----------|------+         |
 |    E     |           |      +---------+
 |    R     |           |
 |          |           |
 |          |           |    A +---------+
 |          |           +------XXX TERM  |
 |          |B cable         B |         |
 |          +------------------+ Drive n |
 |          |                  +---------+
 +----------+
 Cable length should not exceed 3m!

 AC line noise
 -------------
 To eliminate AC line noise, a noise filter of the specifications
 given below should be incorporated in the AC input terminal of the
 drive power supply.
 Attenuation characteristics: 40 dB or greater at 10MHz

 Mean Time Between Failures (MTBF)
 ---------------------------------
 The estimated MTBF of the drive during its life time is 30.000 hours
 after an initial 3-month period.

 Mean Time To Repair (MTTR)
 --------------------------
 MTTR is the average time taken by a well-trained service mechanic to
 diagnose and repair a drive malfunction. The drive is designed for
 a MTTR of 30 minutes or less.

 Service life
 ------------
 Overhaul of the drive is not required for the first five years.

 Power loss
 ----------
 Integrity of the data on the disk is guaranteed against all forms of
 abnormal power failure except a power failure during writing.



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FUJITSU  M2247E/M2248E/M2249E  OEM MANUAL 41FH5015E-02

 Media defects
 =============
 Cylinder 0, Head 0 and 1 are defect free.
 The maximum defect length is 32 Byte.

 All defects are recorded on a label on the media per the ESDI speci-
 fication. When the unit leaves the factory, a printed media defect
 list of each drive is sent with it.


