
GATEWAY COMMUNICATIONS, INC.

G/EtherTwist PC-WS Adapter (NATIONAL CHIPSET)

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Star
Wiring Type   Shielded twisted pair

              Unshielded twisted pair

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                             INTERRUPT REQUEST

   IRQ        JP2       JP3        JP4       JP5        JP6        JP7

     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

                             I/O BASE ADDRESS

        I/O             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         Off           On           Off           Off

                            BASE MEMORY ADDRESS

            Address                     SW1/5                SW1/6

           CC000- CFFFF                 Off                  Off

             C0000-C3FFF                 On                    On

             C4000-C7FFF                 Off                   On

             C8000-CBFFF                 On                   Off

                            LINK INTEGRITY TEST

                Setting                                JP31

                  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.

                                CABLE TYPE

            Type              JP8    JP9     JP10   JP11    JP12    JP13

      Shielded/Unshielded    Pins   Pins    Pins   Pins    Pins    Open
          twisted pair        1 &     1 &    1 &     1 &    1 &
                               2      2       2      2       2

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

  Note: Pins designated should be in the closed position.

[Image]

                             DIAGNOSTIC LED(S)

              Status                              Condition

  Jabber LED (1) on (Red)               Adapter is continually sending
                                                 random data

  Link test LED (2) on (Red)               Network connection good

  Transmit LED (3) blinks (Red)           Data is being transmitted

  Receive LED (4) on (Red)                 Data is being received

  Note: When using the AUI port, the LEDs are not functional.

                            MISCELLANEOUS NOTES

  The PC adapter can be used in a file server or a work station.

  The PC-WS adapter can be used in a work station only.

  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.

