TANDON CORPORATION

SERIAL/PARALLEL OPTION BOARD

Category               Multi I/O
Data Bus Type          8-bit ISA
Memory Type            Unidentified
Maximum Onboard Memory Unidentified

[Image]

                                CONNECTIONS

       Purpose           Location           Purpose           Location

  25-pin parallel          CN1         9-pin serial             CN2
  connector                            connector

                  DSR CONTROL SETTINGS

          Setting                       JP1

  DSR controlled by driver       Pins 1 & 2 closed

      DSR forced true            Pins 2 & 3 closed

      DSR forced false               All open

                  DCD CONTROL SETTINGS

          Setting                       JP2

  DCD controlled by driver       Pins 1 & 2 closed

      DCD forced true            Pins 2 & 3 closed

      DCD forced false               All open

                  CTS CONTROL SETTINGS

          Setting                       JP3

  CTS controlled by driver       Pins 1 & 2 closed

      CTS forced true            Pins 2 & 3 closed

      CTS forced false               All open

                  DTR CONTROL SETTINGS

          Setting                       JP4

  DTR controlled by driver       Pins 1 & 2 closed

      DTR forced true            Pins 2 & 3 closed

      DTR forced false               All open

                  RTS CONTROL SETTINGS

          Setting                       JP5

  RTS controlled by driver       Pins 1 & 2 closed

      RTS forced true            Pins 2 & 3 closed

      RTS forced false               All open

        SERIAL INTERRUPT SETTINGS

         IRQ                 JP6

        IRQ3          Pins 2 & 3 closed

        IRQ4          Pins 1 & 2 closed

       PARALLEL INTERRUPT SETTINGS

         IRQ                 JP7

        IRQ5          Pins 2 & 3 closed

        IRQ7          Pins 1 & 2 closed

          PARALLEL PORT SETTINGS

       Setting               JP8

        LPT1          Pins 1 & 2 closed

        LPT2          Pins 2 & 3 closed

           SERIAL PORT SETTINGS

       Setting               JP9

        COM1          Pins 1 & 2 closed

        COM2          Pins 2 & 3 closed