UNIDENTIFIED

RTX-05D

Card Type          Serial port card
Chipset/Controller Unidentified
I/O Options        Serial ports (2)
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

        Purpose           Location           Purpose           Location

  Serial port 1 -           CN1        Serial port 2 -            CN2
  external                             internal

  Note:The location of CN2 is not specified in manufacturer’s
  documentation.

                        SERIAL PORT 1 CONFIGURATION

         COM/Address                   JP1                    JP3

  »          COM1/3F8h                Closed                 Open

             COM3/3E8h                 Open                 Closed

             Disabled                  Open                  Open

                        SERIAL PORT 2 CONFIGURATION

         COM/Address                   JP2                    JP4

  »          COM2/2F8h                Closed                 Open

             COM4/2E8h                 Open                 Closed

             Disabled                  Open                  Open

                      SERIAL PORT 1 INTERRUPT SELECT

             IRQ                       JP5                   JP6

  »            IRQ3                   Open                  Closed

               IRQ4                  Closed                  Open

             Disabled                 Open                   Open

  SERIAL PORT 2 INTERRUPT SELECT

    IRQ         JP7        JP8

    IRQ4      Closed       Open

    IRQ3       Open       Closed

  Disabled     Open        Open

              MISCELLANEOUS TECHNICAL NOTES

  Serial ports 1 & 2 must have different IRQs selected.