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       # WESTERN DIGITAL CORPORATION
       
          WD1003-RA2, WD1003-WA2
       
          Replaced by the WD1003V-SR2 and WD1003V-MM2 respectively
       
          +------------------------------------------------------------+
          +------------------------------------------------------------+
       
          Data bus: 16-bit, ISA
       
          Size: Full-length, full-height card
       
          Hard drives supported:  WD1003-RA2: Two RLL ST506/412 drives
       
          WD1003-WA2: Two MFM ST506/412 drives
       
          Floppy drives supported: Two 360KB, 720KB, 1.2MB or 1.44MB
          drives
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                 Function                  |    Location    |
          |-------------------------------------------+----------------|
          | 34-pin data cable connector-floppy drive  |       J1       |
          |-------------------------------------------+----------------|
          | 20-pin data cable connector-drive 1       |       J3       |
          |-------------------------------------------+----------------|
          | 20-pin data cable connector-drive 0       |       J4       |
          |-------------------------------------------+----------------|
          | 34-pin control cable connector-hard drive |       J5       |
          |-------------------------------------------+----------------|
          | 4-pin connector-drive active LED          |       J6       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Location |  Setting   |
          |------------------------------------+----------+------------|
          | » | Hard drive port address is     |   JP1    | pins 2 & 3 |
          |   | 1F0-1F7h                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          |   | Hard drive port address is     |   JP1    | pins 1 & 2 |
          |   | 170-177h                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          | » | Floppy drive port address is   |   JP2    | pins 2 & 3 |
          |   | 3F0-3F7h                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          |   | Floppy drive port address is   |   JP2    | pins 1 & 2 |
          |   | 370-377h                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          | » | Supports 360 RPM floppy drives |   JP3    | pins 1 & 2 |
          |   |                                |          |   closed   |
          |---+--------------------------------+----------+------------|
          |   | Supports 300 RPM floppy drives |   JP3    | pins 2 & 3 |
          |   |                                |          |   closed   |
          +------------------------------------------------------------+