DIGITAL COMMUNICATION ASSOCIATES, INC.

SYNCHRONOUS COMMUNICATIONS ADAPTER

Card Type          Serial controller
Chipset/Controller Zilog 8085
I/O Options        Serial port
Maximum DRAM       N/A

[Image]

         CONNECTIONS

    Purpose       Location

  Serial port       CN1

                         I/O ADDRESS CONFIGURATION

  Address       J2A       J2B       J2C        J2D       J2E       J2F

  »   380h     Open       Open      Open      Open     Closed      Open

      300h    Closed      Open      Open      Open      Open       Open

      308h     Open      Closed     Open      Open      Open       Open

      340h     Open       Open     Closed     Open      Open       Open

      348h     Open       Open      Open     Closed     Open       Open

      388h     Open       Open      Open      Open      Open      Closed

                       SLOT NUMBER & PC/XT SETTINGS

                Setting                                 J1

  »    Card in slot other than slot 8           Pins 2 & 3 closed
                  on PC/XT

          Card in slot 8 of PC/XT               Pins 1 & 2 closed

                             INTERRUPT SELECT

     IRQ        J5A       J5B       J5C        J5D       J5E       J5F

  »   IRQ3     Open      Closed     Open      Open      Open       Open

      IRQ2    Closed      Open      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

       FACTORY CONFIGURED SETTINGS

       Jumper              Setting

         J3           Pins 1 & 2 closed

         J4           Pins 1 & 2 closed