QUATECH, INC.

DS-202/DS-302

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

[Image]

                            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