D R - 3 1 1 C   A T    ALPS ELECTRIC
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    2108|  527|  732|
Capacity form/unform   106/      MB        Heads           2|    8|    8|
Seek time   / track  13.0/ 5.0 ms          Sector/track     |   49|   35|
Controller           IDE / AT              Precompensation
Cache/Buffer           128 KB LOOK-AHEAD   Landing Zone
Data transfer rate    0.549 MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C           50    |    -40 60
Power: sleep              W     Humidity     %         8 80    |      5 95
       standby        0.6 W     Altitude    km                 |
       idle               W     Shock        g         5       |     75
       seek               W     Rotation   RPM      3448
       read/write     3.1 W     Acoustic   dBA
       spin-up       10.0 W     ECC        Bit
                                MTBF         h     150000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,TUV,UL1950               

**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
ALPS     DR311/DR312

 Jumper setting
 ==============

 +--------+------------+--------------+---------------+
 |Jumper  |  1 Harddisk|  2 Harddisks |   2 Harddisks |
 |        |            |  Master      |   Slave       |
 +--------+------------+--------------+---------------+
 | -C/D   |   CLOSED   |   CLOSED     |    OPEN       |
 +--------+------------+--------------+---------------+
 | -ACT   |   CLOSED   |   CLOSED     |    CLOSED     |
 +--------+------------+--------------+---------------+
 | -DSP   |   OPEN     |   CLOSED     |    OPEN       |
 +--------+------------+--------------+---------------+
 | -HSP   |   OPEN     |   OPEN       |    OPEN       |
 +--------+------------+--------------+---------------+