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-11700N SCSI-2 Fast

  +===========+
  # REAR VIEW #
  +===========+

         50 pin I/O Cable Connection
         |
    J1#========================1# /---------\    TOP (HDA)
     =#:::::::::::::::::::::::::#=| 0 0 0 0 |==
      \=========================/ \-5-G-G-12/    BOTTOM
       1------\ 1------\ 1------\
       \------/ \---+--/ \------/
        \Terminating Resistors/



  +=================+
  # RIGHT SIDE VIEW #
  +=================+


BACK   #=#       J2  12345678                    TOP (HDA)  FRONT
 OF    J1#======================P=W=A======================= OF
DRIVE  \=/           ::::::::                    BOTTOM     DRIVE
                     ||||||||
   |Terminator Power /||||||\ Reserved
  /|Terminator Power -/||||\- Start Delay (16 secs * ID)
  |     Enable T-Res --/||\-- Motor Start                 
  |           Parity ---/\--- Write Protect
  |
  |
  | /--------------------------------\
  \-| Termination Power-source Table |
    +--------------------------------+-------------\
    |  1 2     1 2      1 2                        |
    | #-#       #-#           A Drive Supplies Bus |
    | #o#o     o#o#    #o-o#  B Drive Supplies Own |
    | #o#o     o#o#    #o o#  C Bus Supplies Drive |
    |   A       B        C                         |
    |=====....=====....=====PWA edge=====          |
    |                                              |
    \------Default---------------------------------/



  +================+
  # LEFT SIDE VIEW #
  +================+             If these ID jumpers are used,
                                 then ID jumpers shown in front
                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 #==1# #=#BACK
   OF   ========P=W=A===============================#:::#=#J1 OF
  DRIVE                BOTTOM                       \===/ \=/DRIVE
                                                     |||
                                               ID 1 -/|\- ID 4
                                                    ID 2   


  +============+
  # FRONT VIEW #
  +============+


                      TOP (HDA)   J6  #=====1#
     ==P=W=A==========================#::::::#=
                 *    BOTTOM          \======/
                 |                     123456
            LED -/                     ||||||
                                  ID 4 /||||\ Reserved
                                  ID 2 -/||\- Remote LED (pin-3 +5v)
                                  ID 1 --/\-- Spindle Synchronization
                                               (pin-6 REF SIG+)
      If these ID jumper are used, then
         ID jumpers shown in left side
         view ARE NOT USED.


                            ST-11700N


       UNFORMATTED CAPACITY (MB) ________________1700
       FORMATTED CAPACITY (xx SECTORS) (MB) _____1430
       AVERAGE SECTORS PER TRACK ________________
       ACTUATOR TYPE ____________________________STRAIGHT ARM
       TRACKS ___________________________________34,138
       CYLINDERS __PHYSICAL______________________2,626
       HEADS ______PHYSICAL______________________13
       DISCS (3.5 in) ___________________________7
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       TRANSFER RATE INTERNAL (mbits/sec)________25 to 43
       SPINDLE SPEED (RPM) ______________________5,400
       AVERAGE LATENCY (mSEC) ___________________5.56
       BUFFER ___________________________________256/1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST
       SECTORS PER DRIVE ________________________
       TPI (TRACKS PER INCH) ____________________
       AVERAGE ACCESS (ms) (read/write)__________9.0/10.5
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) ___________________2
       MAX FULL SEEK (ms) _______________________22
       MTBF (power-on hours) ____________________500,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.0
                           +12V TYPICAL (amps) __0.5
                           +5V START-UP (amps) __
                           +5V TYPICAL (amps) ___0.24
                           TYPICAL (watts) ______9
                           MAXIMUM (watts) ______
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):     1.63/41.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.75/146.1
                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with one spare sector
per track and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product
offerings or specifications. (01/21/93)