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

   ISI4608PC

   Card Type               Serial card                            
   Chip Set                Unidentified                           
   Maximum Onboard Memory  Unidentified                           
   I/O Options             Serial ports (8) via octopus cable     
   Hard Drives supported   None                                   
   Floppy drives supported None                                   
   Data Bus                16-bit ISA                             
   Card Size               Three-quarter length, full-height      

<gopher://bitreich.org/I/th99/i/M-O/54774-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |           Function            |           Label            |
   |-------------------------------+----------------------------|
   | 72 pin connector              |            CN1             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  |100h |  On  |  On  |  On  |  On  | On  | Off | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |108h | Off  |On    |  On  |  On  | On  | Off | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |110h |  On  | Off  |  On  |  On  | On  | Off | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |118h | Off  | Off  |  On  |  On  | On  | Off | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |120h |  On  |  On  | Off  |  On  | On  | Off | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |128h | Off  |  On  | Off  |  On  | On  | Off | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |>> |200h |  On  |  On  |  On  |  On  | On  | On  | Off | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3D8h | Off  | Off  |  On  | Off  | Off | Off | Off | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3E0h |  On  |  On  | Off  | Off  | Off | Off | Off | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3E8h | Off  |  On  | Off  | Off  | Off | Off | Off | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3F0h |  On  | Off  | Off  | Off  | Off | Off | Off | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3F8h | Off  | Off  | Off  | Off  | Off | Off | Off | On  |
   |------------------------------------------------------------|
   |                           Note:                            |
   |                                                            |
   |A total of 255 base address settings are available. The     |
   |switches are a binary representation of the decimal memory  |
   |addresses. SW1/8 is the Most Significant Bit and switch     |
   |SW1/1 is the Least Significant Bit. The switches have the   |
   |following decimal values: SW1/8=1024, SW1/7=512, SW1/6=256, |
   |SW1/5=128, SW1/4=64, SW1/3=32, SW1/2=16, SW1/1=8. Turn off  |
   |the switches and add the values of the switches to obtain   |
   |the correct memory address. (Off=1, On=0)                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 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      |
   +------------------------------------------------------------+