H H - 4 0 5 0    MICROSCIENCE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    1024|     |     |
Capacity form/unform    42/      MB        Heads           5|     |     |
Seek time   / track  18.0/     ms          Sector/track   17|     |     |
Controller           MFM / ST412           Precompensation 65535
Cache/Buffer               KB              Landing Zone
Data transfer rate    0.625 MB/S int       Bytes/Sector      512
                      0.625 MB/S ext
Recording method     MFM                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      36000
                                Warranty Month
Lift/Lock/Park     NO           Certificates                                  

**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
MICROSC. HH-4XXX SERIES  WINCHESTER DISK DRIVE HANDLING PROCEDURES

 Jumper Setting
 ==============

                               DS1
       Termination              |
       Resistor         DS3+-+-+-+-+DS0
       +---------+         | | | | |
   ----+---------+---------+-+-+-+-+--PCB----
                              |
                             DS2


 Drive Select
 ------------
   +----------+------+------+------+------+
   |Drive     |DS0   |DS1   |DS2   |DS3   |
   |Select    |      |      |      |      |
   +----------+------+------+------+------+
   |  0       |CLOSED|OPEN  |OPEN  |OPEN  |
   +----------+------+------+------+------+
   |  1       |OPEN  |CLOSED|OPEN  |OPEN  |
   +----------+------+------+------+------+
   |  2       |OPEN  |OPEN  |CLOSED|OPEN  |
   +----------+------+------+------+------+
   |  3       |OPEN  |OPEN  |OPEN  |CLOSED|
   +----------+------+------+------+------+


 Terminations to be installed in last drive only!