GATEWAY COMMUNICATIONS, INC.

G/EtherNet 8 Adapter (NATIONAL CHIPSET)

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Linear Bus
Wiring Type   RG-58A/U 50ohm coaxial

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                             INTERRUPT REQUEST

   IRQ        JP1       JP2        JP3       JP4        JP5        JP6

      2     Closed      Open      Open       Open       Open       Open

  »   3      Open      Closed     Open       Open       Open       Open

      4      Open       Open     Closed      Open       Open       Open

      5      Open       Open      Open      Closed      Open       Open

      6      Open       Open      Open       Open      Closed      Open

      7      Open       Open      Open       Open       Open      Closed

                             I/O BASE ADDRESS

       Address           SW1/1        SW1/2        SW1/3         SW1/4

         280-29Fh         On            On           On           On

  »      2A0-2BFh         On           Off           On           On

         2C0-2DFh         On            On          Off           On

         2E0-2FFh         On           Off          Off           On

         300-31Fh         On            On           On           Off

         320-33Fh         On           Off           On           Off

         340-35Fh         On            On          Off           Off

         360-37Fh         On           Off          Off           Off

                            BASE MEMORY ADDRESS

          Base Address                  SW1/5                SW1/6

             C0000-C3FFF                 On                    On

             C4000-C7FFF                 Off                   On

             C8000-CBFFF                 On                   Off

  »         CC000- CFFFF                 Off                  Off

                                CABLE TYPE

            Type                JP7        JP8         JP9        JP10

  »       RG-58A/U 50ohm      Pins 1 &   Pins 1 &    Pins 1 &    Pins 1 &
             coaxial             2          2           2           2

       AUI transceiver via    Pins 2 &   Pins 2 &    Pins 2 &    Pins 2 &
           DB-15 port            3          3           3           3

  Note:Pins designated should be in the closed position.

                            MISCELLANEOUS NOTES

  Different drivers must be used for the National & the Fujitsu chipset
  cards, & are not interchangeable. Fujitsu adapters may be used for
  either 8 or 16 bit Fujitsu cards. While the National chipset cards
  require a different driver for an 8 or 16 bit card.