
             ************************************************************
                         Miniscribe Disk Drive Specifications
                                        For
                                    Model: 9380S
             ************************************************************

             FORM FACTOR                           5.25 inch FH
             INTERFACE                                     SCSI
             DATA ENCODING METHOD                       2,7 RLL
             DATA TRANSFER RATE (MByte/Sec)
                SUSTAINED                                  1.25
                BURST                                       4.0

             DISK DRIVE CHARACTERISTICS
                HEADS                                        15
                CYLINDERS                                  1218
                SECTORS/TRACK (512 Byte Sectors)             36
                UNFORMATTED BYTES/TRACK                  20,832
                RADIAL TRACK DENSITY (TPI)                1,100
                ROTATIONAL SPEED (RPM)                    3,600
                UNFORMATTED CAPACITY (MBytes)             380.6
                FORMATTED CAPACITY (MBytes)               336.8

             ACCESS TIMES (mSec)*
                SINGLE TRACK                                3.8
                AVERAGE OF ALL POSSIBLE SEEKS                16
                ONE-THIRD STROKE                             17
                MAXIMUM                                      35
             *(INCLUDES SETTLING)

             POWER REQUIREMENTS
                DISSIPATION (Watts)
                   TYPICAL                                 18.0
                   MAXIMUM                                 22.0
                CURRENT (Amps)
                   +5 V DC (+ or - 5%)                      0.6
                   +12 V DC (+ or - 5%)                     1.2
                   MAXIMUM STARTUP CURRENT                  4.5

             PHYSICAL DIMENSIONS
                HEIGHT (in)                                3.25
                WIDTH (in)                                 5.75
                DEPTH (in)                                    8
                WEIGHT (lbs)                                  6

             OPERATIVE ENVIRONMENTAL LIMITS
                MINIMUM TEMPERATURE (Centigrade)             10
                MAXIMUM TEMPERATURE (Centigrade)             50
                THERMAL GRADIENT (Degrees C/Hour)            10

             RELIABILITY
                MTBF (Hours)                             50,000
                MTTR (Minutes)                               30
                COMPONENT DESIGN LIFE (Years)                 5


                    9380S JUMPER CONFIGURATIONS
-------------------------------------------------------------------------------


SCSI ADDRESS JUMPERS (J-601)
----------------------------     
                  J601-1     J601-2     J601-3
                  ------     ------     ------
SCSI ADDRESS  0    OFF        OFF        OFF
SCSI ADDRESS  1    OFF        OFF        ON
SCSI ADDRESS  2    OFF        ON         OFF
SCSI ADDRESS  3    OFF        ON         ON
SCSI ADDRESS  4    ON         OFF        OFF
SCSI ADDRESS  5    ON         OFF        ON
SCSI ADDRESS  6    ON         ON         OFF
SCSI ADDRESS  7    ON         ON         ON  


SCSI PARITY ENABLE (J-602)
--------------------------
J-602 IS A GROUP OF TWO PAIRS OF JUMPER PINS. THE FIRST PAIR 
IS PRESENTLY UNDEFINED. THE SECOND PAIR DEFINES SCSI PARITY
ENABLED, AS FOLLOWS:

                           J602-2  
                           ------
SCSI PARITY ENABLED          OFF
SCSI PARITY DISABLED         ON             



SCSI TERMINATOR POWER     
---------------------

J-701 IS A GROUP OF TWO PAIRS OF JUMPER PINS. THE FIRST PAIR CONTROLS
TERMINATOR POWER SUPPLIED BY THE TARGET. THE SECOND PAIR CONTROLS POWER 
SUPPLIED FROM ELSEWHERE ON THE BUS.


                                    J701-1   J701-2
                                    ------   ------
LOCAL TERMINATOR POWER                ON       OFF
REMOTE TERMINATOR POWER               OFF      ON


TERMINATORS
-----------
RP701
RP702


Revision A                                             Sandoval/Anderson
10/07/93
