
3COM CORPORATION

ETHERLINK II ADAPTER 7920-XX

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Linear Bus
Wiring Type   AUI Transceiver via DB-15 port

              RG-58A/U 50ohm coaxial
Boot ROM      Available

[Image]

                        BASE I/O ADDRESS SELECTION

     Address       S2 pins 1 &   S2 pins 3 &    S2 pins 5 &   S2 pins 7 &
                       2              4             6              8

         2EOh         Open          Open           Open          Open

         2A0h         Open          Open           Open          Open

         280h         Open          Open           Open          Open

         250h         Open          Open           Open          Open

         350h         Open          Open           Open         Closed

         330h         Open          Open          Closed         Open

         310h         Open         Closed          Open          Open

        300h        Closed         Open           Open          Open

                        BASE I/O ADDRESS SELECTION

     Address       S2 pins 9 &    S2 pins 11    S2 pins 13     S2 pins 15
                       10           & 12           & 14          & 16

         2EOh         Open          Open           Open         Closed

         2A0h         Open          Open          Closed         Open

         280h         Open         Closed          Open          Open

         250h        Closed         Open           Open          Open

         350h         Open          Open           Open          Open

         330h         Open          Open           Open          Open

         310h         Open          Open           Open          Open

        300h         Open          Open           Open          Open

                                BIOSADDRESS

     Address        S1 pins    S1 pins     S1 pins    S1 pins     S1 pins
                     1 & 2      3 & 4      5 & 6       7 & 8      9 & 10

        DC000h       Open       Open        Open       Open       Closed

        D8000h       Open       Open        Open      Closed       Open

        CC000h       Open       Open       Closed      Open        Open

        C8000h       Open      Closed       Open       Open        Open

      Disabled     Closed      Open        Open       Open        Open

