WESTERN DIGITAL CORPORATION

WD1003S-WA4

Data bus: 16-bit, ISA

Size: Full-length, half-height card

Hard drives supported: Two ST506/412 MFM drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                        CONNECTIONS

                  Function                      Location

  34-pin control cable connector-hard drive       CN1

  20-pin data cable connector-drive 0             CN2

  20-pin data cable connector-drive 1             CN3

  34-pin data cable connector-floppy drive        CN4

  4-pin connector-drive active LED                CN5

  DB-9 serial port 1 connector-external           CN6

  DB-25 parallel port connector-external          CN7

                         USER CONFIGURABLE JUMPERS

              Function                    Location            Setting

  »   Floppy drive port address is           JP1             pins 3 & 4
      3F0-3F7h                                                closed

      Floppy drive disabled                  JP1             pins 2 & 3
                                                              closed

      Floppy drive port address is           JP1             pins 1 & 2
      370-377h                                                closed

  »   Hard drive port address is             JP2             pins 2 & 3
      1F0-1F7h                                                closed

      Hard drive port address is             JP2             pins 2 & 3
      170-177h                                                closed

  »   Parallel port is set for LPT1     JP3 and JP3A         pins 1 & 2
                                                              closed

      Parallel port disabled            JP3 and JP3A         pins 2 & 3
                                                              closed

      Parallel port is set for LPT2     JP3 and JP3A         pins 3 & 4
                                                              closed

  »   Serial port is set for COM1       JP4 and JP4A         pins 1 & 2
                                                              closed

      Serial port is disabled           JP4 and JP4A         pins 2 & 3
                                                              closed

      Serial port is set for COM2       JP4 and JP4A         pins 3 & 4
                                                              closed