SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771  [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright  1990

Swift SCSI                   ST-1156N (94351-155)
     ÚÄÄÄ\
     ³ O ³  5
     ³ O ³  R
     ³ O ³  R   
     ³ O ³ 12  ....................  o o o o o o
     ÀÄÄÄ/     1...................  o o o o o o
     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ
                                     4 2 1 ³ ³ ³
                                     ÄÄÂÄÄ ³ ³ ÀÄ Synchronized Spindle
  Terminator Power Select              ³   ³ ÀÄÄÄ Motor Control
  Header located on the side           ³   ÀÄÄÄÄÄ Enable Parity Checking
  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ           ÀÄÄÄÄÄÄÄÄÄ Drive ID, binary - use
 (Back) A B (Front of drive)                      ID 0 (no jumpers) for
        C D                                       single drive install
 A-B  Terminator power from Drive
 A-C  Terminator power from Bus

                             ST-1156N
                         94351-155 Swift

       UNFORMATTED CAPACITY (MB) ________________156
       FORMATTED CAPACITY (36 SECTORS) (MB) _____138
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________7,476
       CYLINDERS ________________________________1,068
       HEADS ____________________________________7
       DISCS ____________________________________4
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbytes/sec) _______________1.25
       INTERFACE ________________________________SCSI
       TPI (TRACKS PER INCH) ____________________1,350
       BPI (BITS PER INCH) ______________________28,282
       AVERAGE ACCESS (ms) ______________________15
       SINGLE TRACK SEEK (ms) ___________________4
       MTBF (power-on hours) ____________________70,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.5
                           +12V TYPICAL (amps) __0.7
                           +5V START-UP (amps) __0.75
                           +5V TYPICAL (amps) ___0.4
                           TYPICAL (watts) ______11
                           MAXIMUM (watts) ______34
       BUFFERED STEP PULSE RATE (micro sec) _____6-200
       WRITE PRECOMP (cyl) ______________________N/A (1069)
       REDUCED WRITE CURRENT (cyl) ______________N/A (1069)
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

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