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                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1993



ST-3610N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»
  º REAR VIEW º
  ÈÍÍÍÍÍÍÍÍÍÍͼ

         50 pin I/O Cable Connection
         ³
    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)
     ͵:::::::::::::::::::::::::Æͳ 0 0 0 0 ³ÍÍ
      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ; ÀÄ5ÄGÄGÄ12Ù    BOTTOM
       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿
       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ
        ÀTerminating ResistorsÙ



  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
  º RIGHT SIDE VIEW º
  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ


BACK   Õ͸       J2  12345678                    TOP (HDA)  FRONT
 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF
DRIVE  Ô;           ::::::::                    BOTTOM     DRIVE
                     ³³³³³³³³
   ³Terminator Power Ù³³³³³³À Reserved
  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)
  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start
  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect
  ³
  ³
  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
  ÀÄ´ Termination Power-source Table ³
    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³
    ³                                              ³
    ³  1 2     1 2      1 2                        ³
    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³
    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³
    ³ Óø½ø     øÓø½    Óø ø½  C Bus Supplies Drive ³
    ³   A       B        C                         ³
    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ



  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
  º LEFT SIDE VIEW º
  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ             If these ID jumpers are used,
                                 then ID jumpers shown in front
                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ Õ͸BACK
   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵:::Æ͵J1 OF
  DRIVE                BOTTOM                       ÔÍÍ; Ô;DRIVE
                                                     ³³³
                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4
                   with PCB# 75782480 or   ³        ID 2
                   #75782495 ID jumpers areÃÄÄ ID 4       ID 1
                   reversed.               ³

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»
  º FRONT VIEW º
  ÈÍÍÍÍÍÍÍÍÍÍÍͼ


                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸
     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵::::::ÆÍ
                 *    BOTTOM          ÔÍÍÍÍÍ;
                 ³                     123456
            LED ÄÙ                     ³³³³³³
                                  ID 4 Ù³³³³À Reserved
                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)
                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization
                                               (pin-6 REF SIG+)
      If these ID jumper are used, then
         ID jumpers shown in left side
         view ARE NOT USED.


                            ST-3610N


       UNFORMATTED CAPACITY (MB) ________________635
       FORMATTED CAPACITY (xx SECTORS) (MB) _____535
       AVERAGE SECTORS PER TRACK ________________79 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________13,104
       CYLINDERS __PHYSICAL______________________1,872 (user)
       HEADS ______PHYSICAL______________________7
       DISCS (3.5 in) ___________________________4
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec)________25 to 41
       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async
       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
       SPINDLE SPEED (RPM) ______________________5,411
       AVERAGE LATENCY (mSEC) ___________________5.54
       BUFFER ___________________________________240 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST
       BYTES PER TRACK (unformatted) ____________48,460 average
       SECTORS PER DRIVE ________________________1,046,205
       TPI (TRACKS PER INCH) ____________________2150
       AVERAGE ACCESS (ms) (read/write)__________10.5/11.2
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) ___________________2
       MAX FULL SEEK (ms) _______________________24
       MTBF (power-on hours) ____________________200,000
       POWER REQUIREMENTS: +12V START-UP (amps) _1.5
                           +12V TYPICAL (amps) __0.4
                           +5V START-UP (amps) __
                           +5V TYPICAL (amps) ___0.6
                           TYPICAL (watts) ______6.5
                           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):     1.00/25.4
                        Width  (inches/mm):     4.02/102.1
                        Depth  (inches/mm):     5.77/146.6
                        Weight    (lbs/kg):     1.5/0.68

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. (06/24/95)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/scsi/st3610n.txt.