
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

