BEHAVIOR TECH COMPUTER CORPORATION
==================================

   BTC1901

   Data bus: 16-bit, ISA

   Size: Half-length, full-height card

   Hard drives supported:  Two IDE (AT) Interface drives

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

<gopher://bitreich.org/I/th99/c/A-B/20033-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                   |  Location   |
   |----------------------------------------------+-------------|
   | 40-pin AT Interface (IDE) connector-internal |     CN1     |
   |----------------------------------------------+-------------|
   | 34-pin control cable connector-floppy disk   |     CN2     |
   |----------------------------------------------+-------------|
   | 16-pin game port-internal                    |     CN3     |
   |----------------------------------------------+-------------|
   | 9-pin serial port (COM2/4)-internal          |     CN4     |
   |----------------------------------------------+-------------|
   | 9-pin serial port (COM1/3)-external          |     CN5     |
   |----------------------------------------------+-------------|
   | Parallel port (LPT1/2)-external              |     CN6     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             | Location |   Setting    |
   |----------------------------------+----------+--------------|
   |>> | IRQ7 (LPT1 interrupt         |    J2    |  pins 1 & 2  |
   |   | request)                     |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | IRQ5 (LPT2 interrupt         |    J2    |  pins 2 & 3  |
   |   | request)                     |          |    closed    |
   |---+------------------------------+----------+--------------|
   |>> | CN5 is set to COM1           |    J3    |  pins 1 & 2  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | CN5 is set to COM3           |    J3    |  pins 2 & 3  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |>> | CN4 is set to COM2           |    J4    |  pins 1 & 2  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | CN4 is set to COM4           |    J4    |  pins 2 & 3  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |>> | CN6 is set to LPT1           |    J5    |  pins 1 & 2  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | CN6 is set to LPT2           |    J5    |  pins 2 & 3  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |>> | COM1/3 enabled               |    J6    |    closed    |
   |---+------------------------------+----------+--------------|
   |   | COM1/3 disabled              |    J6    |     open     |
   |---+------------------------------+----------+--------------|
   |>> | COM2/4 enabled               |    J7    |    closed    |
   |---+------------------------------+----------+--------------|
   |   | COM2/4 disabled              |    J7    |     open     |
   |---+------------------------------+----------+--------------|
   |>> | LPT1/2 enabled               |    J8    |    closed    |
   |---+------------------------------+----------+--------------|
   |   | LPT1/2 disabled              |    J8    |     open     |
   |---+------------------------------+----------+--------------|
   |>> | Hard drive enabled           |    J9    |    closed    |
   |---+------------------------------+----------+--------------|
   |   | Hard drive disabled          |    J9    |     open     |
   |---+------------------------------+----------+--------------|
   |>> | Floppy address 3F0-3F7h      |   J10    |     open     |
   |---+------------------------------+----------+--------------|
   |   | Floppy address 370-377h      |   J10    |    closed    |
   +------------------------------------------------------------+