MULTI-TECH SYSTEMS, INC.
========================

   ISI608PC

   Card Type          Serial interface                            
   Chipset Controller Unidentified                                
   I/O Options        Serial ports (8)                            
   Maximum Dram       2MB (factory installed, unknown location)   

<gopher://bitreich.org/I/th99/i/M-O/50733-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |           Purpose           |           Location           |
   |-----------------------------+------------------------------|
   | DB-78                       |              J1              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              FACTORY CONFIGURED-DO NOT ALTER               |
   |------------------------------------------------------------|
   |            Switch            |           Setting           |
   |------------------------------+-----------------------------|
   |            SW1/1             |             Off             |
   |------------------------------+-----------------------------|
   |            SW1/8             |             Off             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |            IRQ             |              JP1              |
   |----------------------------+-------------------------------|
   |             2              |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |             3              |       Pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |             4              |       Pins 5 & 6 closed       |
   |----------------------------+-------------------------------|
   |             5              |       Pins 7 & 8 closed       |
   |----------------------------+-------------------------------|
   |             7              |      Pins 9 & 10 closed       |
   |----------------------------+-------------------------------|
   |             10             |      Pins 11 & 12 closed      |
   |----------------------------+-------------------------------|
   |             11             |      Pins 13 & 14 closed      |
   |----------------------------+-------------------------------|
   |             12             |      Pins 15 & 16 closed      |
   |----------------------------+-------------------------------|
   |             15             |      Pins 17 & 18 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       ADDRESS SELECT                       |
   |------------------------------------------------------------|
   | Address  | SW1/7  | SW1/6  | SW1/5 | SW1/4 | SW1/3 | SW1/2 |
   |----------+--------+--------+-------+-------+-------+-------|
   |   100h   |  Off   |   On   |  Off  |  Off  |  Off  |  Off  |
   |----------+--------+--------+-------+-------+-------+-------|
   |   110h   |  Off   |   On   |  Off  |  Off  |  Off  |  On   |
   |----------+--------+--------+-------+-------+-------+-------|
   |   120h   |  Off   |   On   |  Off  |  Off  |  On   |  Off  |
   |----------+--------+--------+-------+-------+-------+-------|
   |   130h   |  Off   |   On   |  Off  |  Off  |  On   |  On   |
   |----------+--------+--------+-------+-------+-------+-------|
   |   200h   |   On   |  Off   |  Off  |  Off  |  Off  |  Off  |
   |  (First  |        |        |       |       |       |       |
   |  card)   |        |        |       |       |       |       |
   |----------+--------+--------+-------+-------+-------+-------|
   |   210h   |   On   |  Off   |  Off  |  Off  |  Off  |  On   |
   | (Second  |        |        |       |       |       |       |
   |  card)   |        |        |       |       |       |       |
   |----------+--------+--------+-------+-------+-------+-------|
   |   220h   |   On   |  Off   |  Off  |  Off  |  On   |  Off  |
   |  (Third  |        |        |       |       |       |       |
   |   card   |        |        |       |       |       |       |
   |----------+--------+--------+-------+-------+-------+-------|
   |   230h   |   On   |  Off   |  Off  |  Off  |  On   |  On   |
   | (Fourth  |        |        |       |       |       |       |
   |   card   |        |        |       |       |       |       |
   |----------+--------+--------+-------+-------+-------+-------|
   |   3C0h   |   On   |   On   |  On   |  On   |  Off  |  Off  |
   |----------+--------+--------+-------+-------+-------+-------|
   |   3D0h   |   On   |   On   |  On   |  On   |  Off  |  On   |
   |----------+--------+--------+-------+-------+-------+-------|
   |   3E0h   |   On   |   On   |  On   |  On   |  On   |  Off  |
   |----------+--------+--------+-------+-------+-------+-------|
   |   3F0h   |   On   |   On   |  On   |  On   |  On   |  On   |
   |------------------------------------------------------------|
   | Note: A total of 752 memory base address settings are      |
   | available. The switches are a binary representation of the |
   | decimal addresses. Switch 2 is the Least Significant Bit   |
   | and switch 7 is the Most Significant Bit. The switches     |
   | have the following decimal values: switch 2=16, 3=32,      |
   | 4=64, 5=128, 6=256, 7=512. Add the values of the on        |
   | switches to obtain the correct memory address. (Off=0,     |
   | On=1)                                                      |
   +------------------------------------------------------------+