WESTERN DIGITAL CORPORATION

WD1003V-SM1, WD1003V-SM2

Chipset                  Western Digital
Data Bus                 16-bit ISA
Card Size                Full height, three-quarters length
Hard Drives Supported    Two ST506/412(MFM) devices
Floppy Drives Supported  Two 360KB, 720KB, 1.2MB, or 1.44MB drives
                         (WD1003V-SM2 only)

[Image]

                                CONNECTIONS

         Function           Label            Function             Label

  34-pin cable connector      J1       34-pin control cable        J5
  - floppy drive                       connector - hard drive

  20-pin data cable           J3       4-pin drive active LED      J6
  connector - drive 2

  20-pin data cable           J4
  connector - drive 1

            Note:J1 is not present on WD1003V-SM1 cards.

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

  »   Hard drives in latched mode                W1/A          Open

      Hard drives in non-latched mode            W1/A         Closed

  »   Factory configured - do not alter          W1/B          Open

  »   Hard drive caching enabled                 W1/C          Open

      Hard drive caching disabled                W1/C         Closed

  »   Factory configured - do not alter           W2           Open

  »   Hard drive interface uses primary I/O       W3           Open
      address

      Hard drive interface uses secondary         W3          Closed
      I/O address

  »   Floppy drive interface uses primary         W4           Open
      I/O address

      Floppy drive interface uses secondary       W4          Closed
      I/O address

  »   Single speed floppy drives attached         W5           Open
      to card

      Dual speed floppy drives attached to        W5          Closed
      card

  »   Signal ground not connected to              W6           Open
      chassis ground

      Signal ground connected to chassis          W6          Closed
      ground