GATEWAY COMMUNICATIONS, INC.

G/ETHERTWIST 8 ADAPTER

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Linear Bus

              Star
Wiring Type   Shielded twisted pair

              Unshielded twisted pair

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                             INTERRUPT REQUEST

   IRQ       JP2A       JP2B      JP2C       JP2D       JP2E       JP2F

  »   3      Open      Closed     Open       Open       Open       Open

      2     Closed      Open      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

                                CABLE TYPE

                   Type                                  JP4

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

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

                            LINK INTEGRITY TEST

                Setting                                 JP5

  »                Enabled                       Pins 1 & 2 Closed

                  Disabled                       Pins 2 & 3 Closed

  Note:Link Integrity is only used with 10Base-T wiring. When using an
  AUI transciever, the test should be disabled.

                             I/O BASE ADDRESS

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

  »      2A0-2BF         On           Off           On            On

         280-29F         On            On           On            On

         2C0-2DF         On            On           Off           On

         2E0-2FF         On           Off           Off           On

         300-31F         On            On           On            Off

         320-33F         On           Off           On            Off

         340-35F         On            On           Off           Off

         360-37F         On           Off           Off           Off

                             BOOT ROM ADDRESS

             Address                    SW1/5                SW1/6

  »         CC000-CFFFFh                 Off                  Off

            C0000-C3FFFh                  On                   On

            C4000-C7FFFh                 Off                   On

            C8000-CBFFFh                  On                  Off

[Image]

                             DIAGNOSTIC LED(S)

       LED               Status                     Condition

        1                  On              Card is sending random data
                                                   (Jabbering)

        1                 Off            Card is configured correctly and
                                              is operating normally

        2                  On             Network connection is good 1

        2                 Off            Card is not connected to network
                                                        1

        2                  On                Link test is disabled 2

        2               Blinking         Disabled the link test signal 3

        3               Blinking            Data is being transmitted

        3                 Off             Data is not being transmitted

        4               Blinking             Data is being received

        4                 Off              Data is not being received

  Note 1 :Used when the Link Test signal is enabled (JP5)

  Note 2 :LED remains on when the Link Test signal is disabled (JP5)

  Note 3 :When the Link Test signal is enabled and the card is connected
  to a hub that does not use the

  Link Test signal, the user should disable the Link Test signal.

                FACTORY CONFIGURED SETTINGS - DO NOT ALTER

             Jumper                               Setting

               JP1                       Unknown (Used for Channel
                                              configuration)

  Note:Link Integrity is only used with 10Base-T wiring. When using an
  AUI transciever, the test should be disabled.

                            MISCELLANEOUS NOTES

  Different drivers must be used for the National & the Fujitsu chipset
  cards, they are not interchangeable.

  Fujitsu drivers 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.