QUATECH, INC.
=============

   DS-225/DS-325

   Card Type          Serial interface                            
   Chipset Controller Unidentified                                
   I/O Options        Serial ports (2)                            
   Maximum Dram       N/A                                         

<gopher://bitreich.org/I/th99/i/P-R/50748-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |    J1    | Serial port 2    |    J2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |            IRQ             |              JP3              |
   |----------------------------+-------------------------------|
   |             2              |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |             3              |       Pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |             4              |       Pins 5 & 6 closed       |
   |----------------------------+-------------------------------|
   |             5              |       Pins 7 & 8 closed       |
   |----------------------------+-------------------------------|
   |             6              |      Pins 9 & 10 closed       |
   |----------------------------+-------------------------------|
   |             7              |      Pins 11 & 12 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL INTERRUPT SHARING SELECTION             |
   |------------------------------------------------------------|
   |          Setting           |              JP2              |
   |----------------------------+-------------------------------|
   |        Non-sharable        |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |          Sharable          |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         RS-422/485 DRIVER POWER-UP STATE SELECTION         |
   |------------------------------------------------------------|
   |           State            |              JP5              |
   |----------------------------+-------------------------------|
   |          Enabled           |     Pins 2 & 3 connected      |
   |----------------------------+-------------------------------|
   |          Disabled          |     Pins 1 & 2 connected      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     ADDRESS SELECTION                      |
   |------------------------------------------------------------|
   |Address |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  000h  |  On  |  On  |  On  |  On  | On  | On  | On  | On  |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  008h  |  On  |  On  |  On  |  On  | On  | On  | On  | Off |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  010h  |  On  |  On  |  On  |  On  | On  | On  | Off | On  |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  018h  |  On  |  On  |  On  |  On  | On  | On  | Off | Off |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  2E8h  |  On  | Off  |  On  | Off  | Off | Off | On  | Off |
   |(COM4:) |      |      |      |      |     |     |     |     |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  2F8h  |  On  | Off  |  On  | Off  | Off | Off | Off | Off |
   |(COM2:) |      |      |      |      |     |     |     |     |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  3E8h  |  On  | Off  | Off  | Off  | Off | Off | On  | Off |
   |(COM3:) |      |      |      |      |     |     |     |     |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  3F8h  |  On  | Off  | Off  | Off  | Off | Off | Off | Off |
   |(COM1:) |      |      |      |      |     |     |     |     |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  7E0h  | Off  | Off  | Off  | Off  | Off | Off | On  | On  |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  7E8h  | Off  | Off  | Off  | Off  | Off | Off | On  | Off |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  7F0h  | Off  | Off  | Off  | Off  | Off | Off | Off | On  |
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  7F8h  | Off  | Off  | Off  | Off  | Off | Off | Off | Off |
   |------------------------------------------------------------|
   |Note: A total of 255 memory base address settings are       |
   |available. The switches are a binary representation of the  |
   |decimal addresses. Switch 8 is the Least Significant Bit and|
   |switch 1 is the Most Significant Bit. The switches have the |
   |following decimal values: switch 8=1, 7=2, 6=4, 5=8, 4=16,  |
   |3=32, 2=64, 1=128. Turn off the switches and add the off    |
   |switches to obtain the correct memory base address. (On=0,  |
   |Off=1)                                                      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DTE/DCE SELECTION                      |
   |------------------------------------------------------------|
   |                            JP6                             |
   |------------------------------------------------------------|
   |             DTE              |             DCE             |
   |------------------------------+-----------------------------|
<gopher://bitreich.org/I/th99/i/P-R/50748-2.png>
   |                      | [3][IMG]                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 INPUT CLOCK DIVISOR SELECT                 |
   |------------------------------------------------------------|
   |                            JP1                             |
   |------------------------------------------------------------|
   | 10 (Default)  |      5       |      2       |      1       |
   |---------------+--------------+--------------+--------------|
<gopher://bitreich.org/I/th99/i/P-R/50748-4.png>
   |       | [5][IMG]     | [6][IMG]     | [7][IMG]     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     PROTOCOL SELECTION                     |
   |------------------------------------------------------------|
   |  Protocol  |SW2/1|SW2/2|SW2/3|SW2/4|SW2/5|SW2/6|SW2/7|SW2/8|
   |------------+-----+-----+-----+-----+-----+-----+-----+-----|
   |  Software  | Off | Off | Off | Off | Off | Off | Off | Off |
   |   select   |     |     |     |     |     |     |     |     |
   |------------+-----+-----+-----+-----+-----+-----+-----+-----|
   |   RS-232   | On  | On  | On  | Off | Off | On  | Off | Off |
   |------------+-----+-----+-----+-----+-----+-----+-----+-----|
   | RS-422/485 | On  | On  | Off | On  | Off | Off | On  | Off |
   |------------+-----+-----+-----+-----+-----+-----+-----+-----|
   |Current loop| On  | On  | Off | Off | On  | Off | Off | On  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            CURRENT LOOP TRANSMIT MODE SELECTION            |
   |------------------------------------------------------------|
   |   Mode    |SW3/1 |SW3/2|SW3/3|SW3/4|SW3/5|SW3/6|SW3/7|SW3/8|
   |-----------+------+-----+-----+-----+-----+-----+-----+-----|
   |  Passive  |  On  | On  | Off | Off | Off | Off | Off | Off |
   |-----------+------+-----+-----+-----+-----+-----+-----+-----|
   |20mA active| Off  | Off | On  | On  | On  | Off | Off | Off |
   |-----------+------+-----+-----+-----+-----+-----+-----+-----|
   |30mA active| Off  | Off | On  | On  | On  | On  | Off | Off |
   |-----------+------+-----+-----+-----+-----+-----+-----+-----|
   |60mA active|  On  | On  | Off | Off | Off | Off | Off | On  |
   +------------------------------------------------------------+

   +--------------------------------------------------------------+
   |             CURRENT LOOP RECEIVE MODE SELECTION              |
   |--------------------------------------------------------------|
   | Mode  |SW4/1|SW4/2|SW4/3|SW4/4|SW4/5|SW4/6|SW4/7|SW4/8| JP4  |
   |-------+-----+-----+-----+-----+-----+-----+-----+-----+------|
   |Passive| On  | On  | Off | Off | Off | Off | Off | Off | Open |
   |-------+-----+-----+-----+-----+-----+-----+-----+-----+------|
   | 20mA  | Off | Off | On  | On  | On  | Off | Off | Off |1 & 2 |
   |active |     |     |     |     |     |     |     |     |closed|
   |-------+-----+-----+-----+-----+-----+-----+-----+-----+------|
   | 30mA  | Off | Off | On  | On  | On  | On  | Off | Off |3 & 4 |
   |active |     |     |     |     |     |     |     |     |closed|
   |-------+-----+-----+-----+-----+-----+-----+-----+-----+------|
   | 60mA  | On  | On  | Off | Off | Off | Off | Off | On  |5 & 6 |
   |active |     |     |     |     |     |     |     |     |closed|
   +--------------------------------------------------------------+