DIGITAL COMMUNICATIONS ASSOCIATES, INC.

IRMA 2-ISA

Category               Serial communications adapter
Chipset Controller     Unidentified
I /O Options Supported Serial port
Maximum Onboard Memory N/A

[Image]

                   CONNECTIONS

         Purpose                 Location

  Serial port - coaxial            CN1

                             220H BASE ADDRESS

                 Setting                               SW1/2

  »                 Enabled                              On

                   Disabled                             Off

                                I/O ADDRESS

          Address                    SW1/3                  SW1/4

  »           280h                    On                      On

              2A0h                    On                     Off

              2C0h                    Off                     On

              300h                    Off                    Off

                             INTERRUPT SELECT

            IRQ                      SW1/5                  SW1/6

  »           IRQ2                    On                      On

              IRQ3                    On                     Off

              IRQ4                    Off                     On

              IRQ7                    Off                    Off

  FACTORY CONFIGURED SETTINGS

     Switch         Setting

     SW1/1            Off

                      MISCELLANEOUS TECHNICAL NOTES

  The location of SW1 is not specified in manufacturer's documentation.