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                         SEAGATE TECHNOLOGY, INC.
       Customer Technical Support FAX Network +1 408 438-8137
     Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
??????????????????????????????????????????????????????????????????????
? United States    +1 408 438-8771 ?  United Kingdom +44 628 478011  ?
??????????????????????????????????????????????????????????????????????
? Germany         +49  89 140-9331 ?  Singapore      +65   227-2217  ?
??????????????????????????????????????????????????????????????????????
                            (C)opyright 1991



ST-4383E (94186-383) Wren 5 FH ESDI

       ?Data Cable              ?Controller Cable     /?5?G?G?12\
      ???????? ???             ?????????????? ???    ?? 0 0 0 0 ???
                o o o o o 1???????????? o o o o o o o ???????????
                o o o o o ?Terminator?? o o o o o o o
                1 2 3 4 5               7 6 5 4 3 2 1
  Motor Start ??? ? ? ? ?                        ?Drive Selects
option enable     ? ? ? ?? Factory use   Note:  There are 2 types of PWA's.
                  ? ? ?    only          One with drive select header on the
       Sectors    ? ? ?                  left, and one with header on the
       ??????????????????                right (like this). Pins positions
          64      0 0 0                  are the same.
          35      0 0 1 = 328,939,520
          10      0 1 0
          19      0 1 1                0=open; 1=closed
          36      1 0 0 = 338,337,792
          34      1 0 1 = 319,541,248
          87      1 1 0
    Add Mark      1 1 1


                             ST-4383E
                        94186-383 WREN 5 FH

       UNFORMATTED CAPACITY (MB) ________________383
       FORMATTED CAPACITY (34 SECTORS) (MB) _____319 **
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________18356
       CYLINDERS ________________________________1412
       HEADS ____________________________________13
       DISCS ____________________________________7
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL (2,7)
       TRANSFER RATE (mbytes/sec) _______________1.25
       SPINDLE SPEED (RPM) ______________________3,600
       AVERAGE LATENCY (mSEC) ___________________8.33
       INTERFACE ________________________________ESDI
       TPI (TRACKS PER INCH) ____________________1280
       BPI (BITS PER INCH) ______________________19600
       AVERAGE ACCESS (ms) ______________________18
       SINGLE TRACK SEEK (ms) ___________________4
       MAX FULL SEEK (ms) _______________________40
       MTBF (power-on hours) ____________________100,000
       POWER REQUIREMENTS: +12V START-UP (amps) _4.5
                           +12V TYPICAL (amps) __2.0
                           +5V START-UP (amps) __1.4
                           +5V TYPICAL (amps) ___0.8
                           TYPICAL (watts) ______23
                           MAXIMUM (watts) ______61
       BUFFERED STEP PULSE RATE (micro sec) _____
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP
   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.


   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)