QUATECH, INC.

DS-2000/3000

Card Type          Serial controller
Chipset/Controller 16550
I/O Options        Serial ports (2)
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

        Purpose           Location           Purpose            Location

  Serial port 1             CN1       Serial port 2                CN2

                             DTR CONFIGURATION

               Setting                                 J4

  »                - DTR                    Pins 2 & 3, 5 & 6 closed

                   + DTR                    Pins 1 & 2, 4 & 5 closed

                         INPUT CLOCK CONFIGURATION

                   MHz                                  J1

  »               1.8432MHz               Pins 1 & 4, 2 & 3, 5 & 6 closed

                  3.6864MHz                  Pins 2 & 3, 4 & 5 closed

                  9.216MHz                   Pins 1 & 2, 5 & 6 closed

                  18.432MHz                      Pins 2 & 5 closed

                      TRANSMIT/RECEIVE CONFIGURATION

              Function                                 J2

          RTS/CTS loopback             Pins 1 & 5 closed, pins 1 & 2 open

            Transmit RTS               Pins 5 & 6 closed, pins 6 & 7 open

             Receive RTS               Pins 1 & 2 closed, pins 2 & 3 open

         RCLK/XCLK loopback            Pins 3 & 7 closed, pins 2 & 3 open

            Transmit XCLK              Pins 6 & 7 closed, pins 5 & 6 open

            Receive RCLK               Pins 2 & 3 closed, pins 1 & 2 open

       AUX OUT/AUX IN loopback         Pins 2 & 6 closed, pins 5 & 6, 6 &
                                                     7 open

             Half Duplex                       Pins 4 & 8 closed

             Full Duplex                        Pins 4 & 8 open