GSI, INC.
=========

   MODEL 18 (PART #1533-18-04-7, 1533-18-05-4)

   Data Bus                16-bit ISA                             
   Card Size               Half height, half length               
   Hard Drives Supported   Two EIDE devices                       
   Floppy Drives Supported None                                   

<gopher://bitreich.org/I/th99/c/E-H/21085-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label |      Function      | Label |
   |-----------------------+-------+--------------------+-------|
   | VESA local bus        |  J1   | 40-pin IDE(AT)     |  J6   |
   | extension module      |       | connector          |       |
   |-----------------------+-------+--------------------+-------|
   | 4-pin DC power out    |  J5   | 4-pin drive active |  J8   |
   |                       |       | LED                |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label | Position  |
   |----------------------------------------+-------+-----------|
   |>> | Factory configured - do not alter  | J4/A  |   Open    |
   |---+------------------------------------+-------+-----------|
   |>> | IDE(AT) interrupt is IRQ15,        | J4/B  | Pins 1 &  |
   |   | address is 170h                    |       | 2 closed  |
   |---+------------------------------------+-------+-----------|
   |   | IDE(AT) interrupt is IRQ14,        | J4/B  | Pins 2 &  |
   |   | address is 1F0h                    |       | 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   BIOS ADDRESS SELECTION                   |
   |------------------------------------------------------------|
   |     Setting      |        J4/C        |        J4/D        |
   |------------------+--------------------+--------------------|
   |   |    C800h     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |>> |    D000h     | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |    D800h     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |    E000h     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+