
QUATECH, INC.

DCL-624

Card Type          Serial controller
Chipset/Controller 8250 UART
I/O Options        Serial ports (2)
Maximum DRAM       N/A

[Image]

                              CONNECTIONS

        Purpose           Location          Purpose           Location

  Serial port 1 - DB-9      CN1       Serial port 2 - DB-9      CN2

                         INPUT CLOCK CONFIGURATION

                   MHz                                  J1

                 1.8432MHz                  pins 1 & 2, 3 & 6, 4 & 5

                  3.6864MHz                  pins 1 & 2, 4 & 5 closed

                  9.216MHz                   pins 2 & 3, 4 & 5 closed

                  18.432MHz                      pins 2 & 5 closed

                       PORT 1 INTERRUPT SELECT - J2

     IRQ       Jumper    Jumper    Jumper     Jumper    Jumper   Jumper F
                 A         B         C          D         E

     IRQ4     open       open     closed     open      open       open

      IRQ2    closed      open      open      open      open       open

      IRQ3     open      closed     open      open      open       open

      IRQ5     open       open      open     closed     open       open

      IRQ6     open       open      open      open     closed      open

      IRQ7     open       open      open      open      open      closed

                       PORT 2 INTERRUPT SELECT - J3

     IRQ       Jumper    Jumper    Jumper     Jumper    Jumper   Jumper F
                 A         B         C          D         E

     IRQ3     open      closed     open      open      open       open

      IRQ2    closed      open      open      open      open       open

                           INTERRUPT SELECT - J3

   IRQ     Jumper A  Jumper B   Jumper C   Jumper D   Jumper E  Jumper F

  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

                            POWER SUPPLY SELECT

              Setting                       J4                 J5

        Computer power supply          pins 2 & 3      pins 2 & 3 closed
                                          closed

         Isolated power supply          pins 1 & 2      pins 1 & 2 closed
                                          closed

                     PORT 1 I/O ADDRESS CONFIGURATION

         Base Address                  SW1                   SW3

              3F8h             1, 2, 3, 4, 5 & 6            6 on
                                       on

               3220h            1, 2, 5, 6 & 8 on     1, 2, 4, 5 & 6 on

  Note:The address range for the DCL-624 is from 0 to FFFFh. The switches
  are a binary representation of the addresses. When a switch is off, the
  corresponding bit is set to 1 and has the following decimal value:
  SW1/1=8, SW1/2=4, SW1/3=2, SW1/4=1, SW1/5=8, SW1/6=4, SW1/7=2, SW1/8=1,
  SW3/1=8, SW3/2=4, SW3/3=2, SW3/4=1, SW3/5=8. Port 1 requires 8
  consecutive address locations.

                     PORT 2 I/O ADDRESS CONFIGURATION

         Base Address                  SW2                   SW4

              2F8h             1, 3, 4, 5, 6 & 8            6 on
                                       on

               3220h            1, 2, 5, 6 & 8 on     1, 2, 4, 5 & 6 on

  Note:The address range for the DCL-624 is from 0 to FFFFh. The switches
  are a binary representation of the addresses. When a switch is off, the
  corresponding bit is set to 1 and has the following decimal value:
  SW2/1=8, SW2/2=4, SW2/3=2, SW2/4=1, SW2/5=8, SW2/6=4, SW2/7=2, SW2/8=1,
  SW4/1=8, SW4/2=4, SW4/3=2, SW4/4=1, SW4/5=8. Port 2 requires 8
  consecutive address locations.

                           PORT 1 ENABLE/DISABLE

                 Setting                               SW3/6

                  Enabled                               on

                   Disabled                             off

                           PORT 2 ENABLE/DISABLE

                 Setting                               SW4/6

                  Enabled                               on

                   Disabled                             off

                       PORT 1 TRANSMISSION OPTIONS - SW5

    Setting      SW5/1   SW5/2   SW5/3   SW5/4   SW5/5   SW5/6   SW5/7   SW5/8

       20mA      off     off     on      on      on     off     off     off
       Active
      Transmit

        30mA      off     off     on      on      on      on     off     off
       Active
      Transmit

        60mA      off     off     on      on      on      on      on     off
       Active
      Transmit

       Passive    on      on      off     off    off     off     off     off
      Transmit

                       PORT 2 TRANSMISSION OPTIONS - SW6

    Setting      SW6/1   SW6/2   SW6/3   SW6/4   SW6/5   SW6/6   SW6/7   SW6/8

       20mA      off     off     on      on      on     off     off     off
       Active
      Transmit

        30mA      off     off     on      on      on      on     off     off
       Active
      Transmit

        60mA      off     off     on      on      on      on      on     off
       Active
      Transmit

       Passive    on      on      off     off    off     off     off     off
      Transmit

               PORT 1 RECEIVE CIRCUIT CURRENT OPTIONS - SW7

         Setting              SW7/1            SW7/2           SW7/3

            20mA               on              off             off

             30mA              off              on              off

             60mA              off              off              on

               PORT 2 RECEIVE CIRCUIT CURRENT OPTIONS - SW7

         Setting              SW7/4            SW7/5           SW7/6

            20mA               on              off             off

             30mA              off              on              off

             60mA              off              off              on

                         PORT 1 RECEIVE OPTIONS - SW8

    Setting     SW8/1   SW8/2   SW8/3   SW8/4   SW8/5   SW8/6   SW8/7   SW8/8

     Passive    on      on      off     off    off     off     off     off
      Receive

        20mA     off     off     on      on      on     off     off     off
       Active
      Receive

        30mA     off     off     on      on      on      on     off     off
       Active
      Receive

        60mA     off     off     on      on      on      on      on     off
       Active
      Receive

                         PORT 2 RECEIVE OPTIONS - SW9

    Setting     SW9/1   SW9/2   SW9/3   SW9/4   SW9/5   SW9/6   SW9/7   SW9/8

     Passive    on      on      off     off    off     off     off     off
      Receive

        20mA     off     off     on      on      on     off     off     off
       Active
      Receive

        30mA     off     off     on      on      on      on     off     off
       Active
      Receive

        60mA     off     off     on      on      on      on      on     off
       Active
      Receive

