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

   DS-202/DS-302

   Card Type          Serial controller                           
   Chipset/Controller 16450                                       
   I/O Options        Serial ports (2)                            
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/P-R/50444-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN1    | Serial port 2    |   CN2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 INPUT CLOCK CONFIGURATION                  |
   |------------------------------------------------------------|
   |           MHz            |               J1                |
   |--------------------------+---------------------------------|
   |>> |      1.8432MHz       | Pins 1 & 2, 3 & 6, 4 & 5 closed |
   |---+----------------------+---------------------------------|
   |   |      3.6864MHz       |    Pins 1 & 2, 5 & 6 closed     |
   |---+----------------------+---------------------------------|
   |   |       9.216MHz       |    Pins 2 & 3, 4 & 5 closed     |
   |---+----------------------+---------------------------------|
   |   |      18.432MHz       |        Pins 2 & 5 closed        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PRIMARY PORT ADDRESS SELECT                 |
   |------------------------------------------------------------|
   |Address |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
   |--------+------+------+------+------+-----+-----+-----+-----|
   |>>|03F8h |  On  | Off  | Off  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |02E0h |  On  | Off  |  On  | Off  | Off | Off | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |02F8h |  On  | Off  |  On  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |03E8h |  On  | Off  | Off  | Off  | Off | Off | On  | Off |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               ALTERNATE PORT ADDRESS SELECT                |
   |------------------------------------------------------------|
   |Address |SW2/1 |SW2/2 |SW2/3 |SW2/4 |SW2/5|SW2/6|SW2/7|SW2/8|
   |--------+------+------+------+------+-----+-----+-----+-----|
   |>>|02F8h |  On  | Off  |  On  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |02E0h |  On  | Off  |  On  | Off  | Off | Off | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |03E8h |  On  | Off  | Off  | Off  | Off | Off | On  | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |03F8h |  On  | Off  | Off  | Off  | Off | Off | Off | Off |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CHANNEL CONFIGURATION                    |
   |------------------------------------------------------------|
   |           Setting            |             J4              |
   |------------------------------+-----------------------------|
   |      Channel 1 enabled       |      Pins 1 & 3 closed      |
   |------------------------------+-----------------------------|
   |      Channel 2 enabled       |      Pins 2 & 4 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               PRIMARY PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   | IRQ  |  J5/A  |  J5/B  |  J5/C  |  J5/D  |  J5/E  |  J5/F  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ2 | Closed |  Open  |  Open  |  Open  |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ3 |  Open  | Closed |  Open  |  Open  |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ4 |  Open  |  Open  | Closed |  Open  |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ5 |  Open  |  Open  |  Open  | Closed |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ6 |  Open  |  Open  |  Open  |  Open  | Closed |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ7 |  Open  |  Open  |  Open  |  Open  |  Open  | Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              ALTERNATE PORT INTERRUPT SELECT               |
   |------------------------------------------------------------|
   | IRQ  |  J6/A  |  J6/B  |  J6/C  |  J6/D  |  J6/E  |  J6/F  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ2 | Closed |  Open  |  Open  |  Open  |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ3 |  Open  | Closed |  Open  |  Open  |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ4 |  Open  |  Open  | Closed |  Open  |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ5 |  Open  |  Open  |  Open  | Closed |  Open  |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ6 |  Open  |  Open  |  Open  |  Open  | Closed |  Open  |
   |------+--------+--------+--------+--------+--------+--------|
   | IRQ7 |  Open  |  Open  |  Open  |  Open  |  Open  | Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               PRIMARY PORT INTERRUPT SHARING               |
   |------------------------------------------------------------|
   |           Setting            |             J2              |
   |------------------------------+-----------------------------|
   |  Dedicated interrupt level   |  Pins 2 & 3, 5 & 6 closed   |
   |------------------------------+-----------------------------|
   |      Interrupt sharing       |  Pins 1 & 2, 4 & 5 closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              ALTERNATE PORT INTERRUPT SHARING              |
   |------------------------------------------------------------|
   |           Setting            |             J3              |
   |------------------------------+-----------------------------|
   |  Dedicated interrupt level   |  Pins 2 & 3, 5 & 6 closed   |
   |------------------------------+-----------------------------|
   |      Interrupt sharing       |  Pins 1 & 2, 4 & 5 closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        PRIMARY PORT AUXILIARY CHANNEL CONFIGURATION        |
   |------------------------------------------------------------|
   |Transmission|Reception|           Loopback           |  J8  |
   |------------+---------+------------------------------+------|
   |    RTS     |   CTS   |          XCLK/RCLK           |Pins 1|
   |            |         |                              |& 2, 3|
   |            |         |                              |& 6, 4|
   |            |         |                              | & 5  |
   |            |         |                              |closed|
   |------------+---------+------------------------------+------|
   |    XCLK    |  RCLK   |           RTS/CTS            |Pins 1|
   |            |         |                              |& 4, 2|
   |            |         |                              |& 3, 5|
   |            |         |                              | & 6  |
   |            |         |                              |closed|
   |------------+---------+------------------------------+------|
   |    N/A     |   N/A   |RTS/CTS/XCLK/RCLK/AUXOUT/AUXIN|Pins 1|
   |            |         |                              |& 4, 2|
   |            |         |                              |& 5, 3|
   |            |         |                              | & 6  |
   |            |         |                              |closed|
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |       ALTERNATE PORT AUXILIARY CHANNEL CONFIGURATION       |
   |------------------------------------------------------------|
   |Transmission|Reception|           Loopback           | J10  |
   |------------+---------+------------------------------+------|
   |    RTS     |   CTS   |          XCLK/RCLK           |Pins 1|
   |            |         |                              |& 2, 3|
   |            |         |                              |& 6, 4|
   |            |         |                              | & 5  |
   |            |         |                              |closed|
   |------------+---------+------------------------------+------|
   |    XCLK    |  RCLK   |           RTS/CTS            |Pins 1|
   |            |         |                              |& 4, 2|
   |            |         |                              |& 3, 5|
   |            |         |                              | & 6  |
   |            |         |                              |closed|
   |------------+---------+------------------------------+------|
   |    N/A     |   N/A   |RTS/CTS/XCLK/RCLK/AUXOUT/AUXIN|Pins 1|
   |            |         |                              |& 4, 2|
   |            |         |                              |& 5, 3|
   |            |         |                              | & 6  |
   |            |         |                              |closed|
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PRIMARY PORT DRIVER CONFIGURATION              |
   |------------------------------------------------------------|
   |           Driver           |              J7               |
   |----------------------------+-------------------------------|
   |           - DTR            |       Pins 1 & 5 closed       |
   |----------------------------+-------------------------------|
   |           + DTR            |       Pins 2 & 6 closed       |
   |----------------------------+-------------------------------|
   |           - RTS            |       Pins 3 & 7 closed       |
   |----------------------------+-------------------------------|
   |           + RTS            |       Pins 4 & 8 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            ALTERNATE PORT DRIVER CONFIGURATION             |
   |------------------------------------------------------------|
   |           Driver           |              J9               |
   |----------------------------+-------------------------------|
   |           - DTR            |       Pins 1 & 5 closed       |
   |----------------------------+-------------------------------|
   |           + DTR            |       Pins 2 & 6 closed       |
   |----------------------------+-------------------------------|
   |           - RTS            |       Pins 3 & 7 closed       |
   |----------------------------+-------------------------------|
   |           + RTS            |       Pins 4 & 8 closed       |
   +------------------------------------------------------------+