Hard Drive: WESTERN DIGITAL: PHD-2100 2167MB 3.0"/SSL PCMIDE

P H D - 2 1 0 0    WESTERN DIGITAL
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3"/SUPERSLIMLINE      Cylinders        | 4200|     |
Capacity form/unform  2167/      MB        Heads           4|   16|     |
Seek time   / track  14.0/ 4.0 ms          Sector/track     |   63|     |
Controller           PCMIDE 50-PIN         Precompensation
Cache/Buffer           256 KB ADAPTIVE     Landing Zone
Data transfer rate    8.000 MB/S int       Bytes/Sector      512
                     16.600 MB/S ext PIO4
Recording method                                    operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 60
Power: sleep          0.2 W     Humidity     %         8 85    |      5 95
       standby        0.2 W     Altitude    km    -0.305  3.048| -0.305 12.192
       idle           0.2 W     Shock        g       100       |    300
       seek               W     Rotation   RPM      4000
       read/write     2.8 W     Acoustic   dBA        35
       spin-up        5.5 W     ECC        Bit   REED SOLOMON
                                MTBF         h     350000
                                Warranty Month        36
Lift/Lock/Park     YES          Certificates                                  

Jumpers

WESTERN PHD1400 TECHNICAL REFERENCE MANUAL 79-860024-000 1997

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

Drive Configuration
-------------------
All configurations of the WD Portfolio drive use CSEL line to
dictate the master or slave drive identify.

The drive address is 0 (Master or Single) if CSEL is low, or 1
(Slave) if CSEL is high.

NOTE
The WD Portfolio drive autodetects whether it is a master or slave
when CSEL is driven low.

Drive Active/Slave Present
--------------------------
Pin 23
This open collector output is a time-multiplexed signal indicating
drive active or slave present. At reset, this signal is an output
from the slave drive and an input to the master drive, showing that
a slave drive is present. For all times other than reset, DASP- is
asserted by the master and slave drives during command execution.