QUATECH, INC.

MPI-600

Card Type          I/O controller
Chipset/Controller Intel 80C188
I/O Options        Serial ports (2)
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

       Purpose          Location            Purpose            Location

  Serial port 1            CN1        SCC channel "B"             J2
                                      connector

  Serial port 2            CN2

                            I/O ADDRESS SELECT

  Address   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

   3F8h      On     Off     Off     Off     Off     Off     Off      Off

   3E8h      On     Off     Off     Off     Off     Off      On      Off

   2F8h      On     Off      On     Off     Off     Off     Off      Off

   2E8h      On     Off      On     Off     Off     Off      On      Off

   7F8h     Off     Off     Off     Off     Off     Off     Off      Off

       Note:The address range for the MPI-600 can be set between 000h and
       7F8h. The switches are a binary representation of the addresses.
       The switches have the following decimal values: switch 1=4, switch
       2=2, switch 3=1, switch 4=8, switch 5=4, switch 6=2, switch 7=1,
       switch 8=8. Turn Off the switches and add the values of the Off
       switches to obtain the correct address.

                      DMA CHANNEL SELECT

         DMA                  J3                   J4

          1            Pins 1 & 3 closed   Pins 1 & 3 closed

          3            Pins 2 & 4 closed   Pins 2 & 4 closed

        None               All open             All open

               PARALLEL PORT CONFIGURATION

             J1                      Designation

         Pins 1 - 4              Connected to ground

            Pin 5             Connected to 8256 pin P27

            Pin 6             Connected to 8256 Pin P26

            Pin 7             Connected to 8256 Pin P25

            Pin 8             Connected to 8256 Pin P24

              INTERRUPT SELECT

         IRQ                   J5

         IRQ2           Pins 1 & 7 closed

         IRQ3           Pins 2 & 8 closed

         IRQ4           Pins 3 & 9 closed

         IRQ5          Pins 4 & 10 closed

         IRQ6          Pins 5 & 11 closed

         IRQ7          Pins 6 & 12 closed

                      CURRENT LOOP POWER LEVEL SELECT

         Setting                     J6                      J7

        +12 volts                   Open                   Closed

        -12 volts                  Closed                   Open

   External power source            Open                    Open
           used

                           SIGNAL CONFIGURATION

  Signal Type      Mode         J8          J9         J10         J11

  RTxC/RRxC        V.35        1 & 3       1 & 3       N/A         N/A
                 (RS-422)     closed      closed

  RTxC/RRxC        V.24        2 & 4       2 & 4       N/A         N/A
                 (RS-232)     closed      closed

  RTxC/RRxC     Receive no    All open    All open     N/A         N/A
                  clock

     RxD           V.35         N/A         N/A        1 & 4       N/A
                 (RS-422)                             closed

     RxD           V.24         N/A         N/A        2 & 5       N/A
                 (RS-232)                             closed

     RxD          Current       N/A         N/A        3 & 6       N/A
                   Loop                               closed

     TTxC         TRxCA        Open         N/A        N/A        1 & 3
                                                                 closed

     TTxC         RTxCA         N/A        Open        N/A        2 & 4
                                                                 closed

     TTxC         Send no       N/A         N/A        N/A      All open
                  clock

                          INTERFACE CONFIGURATION

               Setting                                J12

               RS-232                   Pins 1 & 16, 2 & 17, 5 & 20, 6 &
                                        21, 7 & 22, 9 & 24, 10 & 25, 11 &
                                          26, 13 & 28, 14 & 29, 15 & 30
                                                     closed

       Note:If transmitting a clock, close pins 4 & 19. If receiving a
       clock, close pins 8 & 23 for RxC mode and close pins 12 & 27 for
       TxC mode.

                          INTERFACE CONFIGURATION

               Setting                                J12

               RS-422                   Pins 1 & 16, 18 & 33, 5 & 20, 6 &
                                          21, 26 & 41, 29 & 44, 30 & 45
                                                     closed

       Note:If transmitting a clock, close Pins 17 & 32, 19 & 34. If
       receiving a clock, close Pins 22 & 37, 23 & 38 for RxC mode and
       close Pins 24 & 39, 27 & 42 for TxC mode.

                          INTERFACE CONFIGURATION

               Setting                                J12

            Current Loop                Pins 1 & 16, 2 & 17, 3 & 18, 7 &
                                       22, 9 & 24, 11 & 40, 14 & 43, 14 &
                                               29, 15 & 30 closed

       Note:If using positive voltage, close Pins 21 & 36. If using
       negative voltage, close Pins 20 & 35.