ST-1156E (94356-155) Swift ESDI

     ����\
     � 0 �  5    ��� Drive Selects
     � 0 �  G  �����
     � 0 �  G  1 2 4                                   �� Located on rear
     � 0 � 12  o o o                                   �  side of drive
     ����/     o o o     � Control Cable               �
     �������� ��   �������������� ���             ���������Ŀ
      �                1�����1�����                o o o o o
      �Data Cable       Terminators                o o o o o   (front)
                                                   M S � � Ext
                                                   � � � � �
                                                   � � � � �
                       Motor Start option enable ��� � � � �
                       Soft Sector option enable  ���� � � �
                                                       � � �
                               B/Sec        Sectors    � � �      0=open
                               ���������������������   | | �      1=closed
                               Test Only  �            1 1 �
                               512        �34          1 0 � = 130,629,632
                               512        �36          0 0 � = 138,313,728
                               256        �64          0 1 �
                                                           �
                       External Spindle clock  �������������


                             ST-1156E
                          94356-155 Swift

       UNFORMATTED CAPACITY (MB) ________________155
       FORMATTED CAPACITY (36 SECTORS) (MB) _____138 **
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________7,504
       CYLINDERS ________________________________1,072
       HEADS ____________________________________7
       DISCS ____________________________________4
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbytes/sec) _______________1.25
       SPINDLE SPEED (RPM) ______________________3,600
       INTERFACE ________________________________ESDI
       TPI (TRACKS PER INCH) ____________________1,350
       BPI (BITS PER INCH) ______________________28,103
       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) ______33.75
       BUFFERED STEP PULSE RATE (micro sec) _____6-200
       WRITE PRECOMP (cyl) ______________________N/A (1073)
       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)
       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.

** ESDI controllers which offer an Alternate/Spare sector per track
   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes


                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  �������Ŀ
                                  � A � B �    B = Anode
                                  �������Ĵ    D = Cathode
                                  � C � D �
              ...�������������������������������P�W�A���...


        � Default jumper at C-D for LED mounted on drive PWA
        � To use remote LED, remove jumper and extend B (Anode)
          and D (Cathode).
        � Swift LED kit 75912397 allows connection to a remote LED
        � 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)