ADAPTEC, INC.
=============

   ACB-2370C, ACB-2372C

    Data bus:      16-bit, ISA                                    

    Size:          Full-length, full-height card                  

    Hard drives    Two RLL ST506 drives                           
    supported:     

    Floppy drives  ACB-2370C: None                                
    supported:                                                    
                   ACB-2372C: Two 360KB, 720KB, 1.2MB, or 1.44MB  

<gopher://bitreich.org/I/th99/c/A-B/20021-1.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       |
   |-------------------------------------------+----------------|
   | 3-pin connector-drive active LED          |       J6       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Hard drive port address        |   J2-1   |    open    |
   |   | 1F0-1F7h                       |          |            |
   |---+--------------------------------+----------+------------|
   |   | Hard drive port address        |   J2-1   |   closed   |
   |   | 170-177h                       |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Not used                       |   J2-2   |    open    |
   |---+--------------------------------+----------+------------|
   |>> | Zero wait state disabled       |   J2-3   |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Zero wait state enabled        |   J2-3   |    open    |
   |---+--------------------------------+----------+------------|
   |>> | 16 m sec step rate and         |   J2-4   |    open    |
   |   | recalibrate to 0               |          |            |
   |---+--------------------------------+----------+------------|
   |   | 35 m sec step rate and         |   J2-4   |   closed   |
   |   | recalibrate to 0 minus 1       |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Read ahead cache enabled       |   J2-5   |    open    |
   |---+--------------------------------+----------+------------|
   |   | Read ahead cache disabled      |   J2-5   |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Not used                       |   J2-6   |    open    |
   |---+--------------------------------+----------+------------|
   |>> | Not used                       |   J2-7   |    open    |
   |---+--------------------------------+----------+------------|
   |>> | BIOS address C800h             |    J7    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | BIOS address CC00h             |    J7    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | BIOS disabled                  |    J7    |    open    |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive port address      |    J8    |    open    |
   |   | 3F0-3F7h                       |          |            |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive port address      |    J8    |   closed   |
   |   | 370-377h                       |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive enabled           |    J9    |    open    |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive disabled          |    J9    |   closed   |
   +------------------------------------------------------------+