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

<gopher://bitreich.org/I/th99/c/U-Z/20220-1.png>
   

   +------------------------------------------------------------+
   |                        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   |
   +------------------------------------------------------------+