
S T 4 0 5 1   ( 1 9 9 0 )    SEAGATE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders     977|     |     |
Capacity form/unform    42/   50 MB        Heads           5|     |     |
Seek time   / track  40.0/ 8.0 ms          Sector/track   17|     |     |
Controller           MFM / ST412           Precompensation 65535
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          25.5 W     Shock        g                 |
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      15000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
SEAGATE  ST4038/ST4051  PRODUCT DESCRIPTION 6/26/90

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XX J2
  |                                                         |XX
  |                                                         |XX
  |                                                         1-+
  |                                                         | |Option
  |                                                         | |Jumper
  |                                                         +-+
  |                                                         |XX
  |                                                         |XX J1
  |                                             +---------+ |XX
  |                                             +---------1 |XX
  |                                             Terminator  |XX
  |                                                         |XX
  |                                                         |  1
  |                                                         |XX J3
  |                                                         |XX Power
  +---------------------------------------------------------+  1



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
SEAGATE  ST4038/ST4051  PRODUCT DESCRIPTION 6/26/90

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


               Option Jumper Block                         Ground
       J2       +---------------+        J1                 +++
    Data Cable 1|o o o o o o o o| Control Cable        1  4 3 2 1  J3
 +--XXXXXXXXXXX-+o o o o o o o o+-XXXXXXXXXXXXXXXXXXXXXX--XXXXXXX---+
 |              +1-2-3-4-+-+-+-++                         5V    12V |
 |               | | | | | | | + Radial        +1                   |
 |Drive Select 1 + | +++ | | +-- Recovery Mode ||Terminator         |
 |Drive Select 2 --+  |  | +---- Write Fault   ||                   |
 |                    |  +------ Not Connected ||                   |
 |  Drive Select -----+          (OPEN)        ++
 |  (NEVER USED)
 |


 Drive Select
 ------------
 Pins 1 CLOSED  Drive Select 1
 Pins 2 OPEN

 Pins 2 CLOSED  Drive Select 2
 Pins 1 OPEN
 If you use a twisted cable, use Drive Select 2.

 Drive Select 3 and 4 never used.


 Radial Configuration
 --------------------
 CLOSED  Radial Operation enabled
 OPEN    Daisy-chain mode enabled


