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                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1991



ST-1201NS (94351-200S) Swift SCSI
     ΪΔΔΔ\
     ³ O ³  5
     ³ O ³  G
     ³ O ³  G
     ³ O ³ 12  ....................  o o o o o o
     ΐΔΔΔ/     1...................  o o o o o o
     ΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝ
                                     1 2 4 ³ ³ ³
                                     ΔΔΒΔΔ ³ ³ ΐΔ Synchronized Spindle
  Terminator Power Select              ³   ³ ΐΔΔΔ Motor Control
  Header located on the side           ³   ΐΔΔΔΔΔ Enable Parity Checking
  ΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔ           ΐΔΔΔΔΔΔΔΔΔ Drive ID, binary - use
 (Back) A B (Front of drive)                      ID 0 (no jumpers) for
        C D                                       single drive install
 A-B  Drive from Power Connector (factory default)
 A-C  Drive from SCSI Bus
 A-C&B-D  Drive from Power Connector and Provide to SCSI Bus
 B-D  Only provide to SCSI Bus

                    Shrouded SCSI Connector Only
     ΪΔΔΔ\
     ³ O ³  5
     ³ O ³  G
     ³ O ³  G  ΪΔ If the SCSI connector has a plastic shroud, note pin-1
     ³ O ³ 12 ΙΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝ» o o o o o o
     ΐΔΔΔ/    Ί:::::::::::::::::::1Ί o o o o o o
     ΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝ
                                     1 2 4 ³ ³ ³
                                     ΔΔΒΔΔ ³ ³ ΐΔ Synchronized Spindle
  Terminator Power Select              ³   ³ ΐΔΔΔ Motor Control
  Header located on the side           ³   ΐΔΔΔΔΔ Enable Parity Checking
  ΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔ           ΐΔΔΔΔΔΔΔΔΔ Drive ID, binary - use
 (Back) A B (Front of drive)                      ID 0 (no jumpers) for
        C D                                       single drive install
 A-B  Drive from Power Connector (factory default)
 A-C  Drive from SCSI Bus
 A-C&B-D  Drive from Power Connector and Provide to SCSI Bus
 B-D  Only provide to SCSI Bus


                             ST-1201NS
                         94351-200S Swift

       UNFORMATTED CAPACITY (MB) ________________201
       FORMATTED CAPACITY (36 SECTORS) (MB) _____177
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________9,612
       CYLINDERS ________________________________1,068
       HEADS ____________________________________9
       DISCS ____________________________________5
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbytes/sec) _______________1.25
       SPINDLE SPEED (RPM) ______________________3,600
       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.


                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ΪΔΔΔΒΔΔΔΏ
                                  ³ A ³ B ³    B = Anode
                                  ΓΔΔΔΕΔΔΔ΄    D = Cathode
                                  ³ C ³ D ³
              ...ΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΟΝΝΝΟΝΝΝΟΝΝΝΝΝPΝWΝAΝΝΝ...


        ψ Default jumper at C-D for LED mounted on drive PWA
        ψ To use remote LED, remove jumper and extend B (Anode)
          and D (Cathode).
        ψ Swift LED kit 75912397 allows connection to a remote LED
        ψ Swift LED kit 95913369 has an LED for attachment to the
          system front bezel or a 5.25-inch frame kit

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

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/scsi/st1201ns.txt.