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  1. SEAGATE TECHNOLOGY, INC.
  2. Technical Support Bulletin Board
  3. 408/438-8771  [300-9600 HST, MNP 3/5, N-8-1]
  4. (C)opyright  1990                              
  5.  
  6. ST-412
  7.  
  8.                        OPTION SHUNT BLOCK
  9.                             ┌──\───/──┐
  10.                           1 │   R     │ 16
  11.                           2 │   NC    │ 15
  12.                           3 │   NC    │ 14
  13.                           4 │   NC    │ 13
  14.                           5 │   DS4   │ 12
  15.                           6 │   DS3   │ 11
  16.                           7 │   DS2   │ 10
  17.                           8 │   DS1   │ 9
  18.                             └─────────┘
  19.  
  20.                      DS1,DS2,DS3,DS4=DRIVE SELECTED
  21.                          R=RADIAL OPERATION
  22.  
  23.                               ST - 412
  24.  
  25.        UNFORMATTED CAPACITY (MB) ________________12.76
  26.        FORMATTED CAPACITY (17 SECTORS) (MB) _____10.0
  27.        ACTUATOR TYPE ____________________________STEPPER
  28.        TRACKS ___________________________________1,224
  29.        CYLINDERS ________________________________306
  30.        HEADS ____________________________________4
  31.        DISCS ____________________________________2
  32.        MEDIA TYPE _______________________________OXIDE
  33.        RECORDING METHOD _________________________MFM
  34.        TRANSFER RATE (mbits/sec) ________________5.0
  35.        INTERFACE ________________________________ST412
  36.        TPI (TRACKS PER INCH) ____________________345
  37.        BPI (BITS PER INCH) ______________________9,074
  38.        AVERAGE ACCESS (ms) ______________________85
  39.        SINGLE TRACK SEEK (ms) ___________________< 16.67
  40.        MTBF (power-on hours) ____________________11,000
  41.        POWER REQUIREMENTS: +12V START-UP (amps) _3.5
  42.                            +12V TYPICAL (amps) __1.7
  43.                            +5V TYPICAL (amps) ___1.1
  44.                            TYPICAL (watts) ______25.9
  45.                            MAXIMUM (watts) ______50
  46.        BUFFERED STEP PULSE RATE (micro sec) _____5-500
  47.        WRITE PRECOMP (cyl) ______________________128
  48.        REDUCED WRITE CURRENT (cyl) ______________N/A (307)
  49.        LANDING ZONE (cyl)________________________319
  50.        IBM AT DRIVE TYPE ________________________1
  51.  
  52. Seagate reserves the right to change, without notice, product
  53. offerings or specifications. (6/26/90)
  54.