3COM CORPORATION

TOKENLINK III 16/4 (3C619)

NIC Type      Token-Ring
Transfer Rate 4/16Mbps
Data Bus      16-bit ISA
Topology      Token-Ring
Wiring Type   Unshielded twisted pair

              Shielded twisted pair via DB-9
Boot ROM      Available

[Image]

                             BOOT ROM ADDRESS

       Address        SW1/1    SW1/2    SW1/3    SW1/4    SW1/5    SW1/6

      C0000-C1FFFh     Off       On       On      On       On        On

      C2000-C3FFFh     Off       On       On      On       On       Off

      C4000-C5FFFh     Off       On       On      On       Off       On

      C6000-C7FFFh     Off       On       On      On       Off      Off

      C8000-C9FFFh     Off       On       On      Off      On        On

      CA000-CBFFFh     Off       On       On      Off      On       Off

  »   CC000-CDFFFh     Off       On       On      Off      Off       On

      CE000-CFFFFh     Off       On       On      Off      Off      Off

      D0000-D1FFFh     Off       On      Off      On       On        On

      D2000-D3FFFh     Off       On      Off      On       On       Off

      D4000-D5FFFh     Off       On      Off      On       Off       On

      D6000-D7FFFh     Off       On      Off      On       Off      Off

      D8000-D9FFFh     Off       On      Off      Off      On        On

      DA000-DBFFFh     Off       On      Off      Off      On       Off

  »   DC000-DDFFFh     Off       On      Off      Off      Off       On

      DE000-DFFFFh     Off       On      Off      Off      Off      Off

  Note:CC000h is the factory setting, and DC000h is the recommended
  alternate setting.

                             INTERRUPT REQUEST

            IRQ                     SW1/7                   SW1/8

  »           2/9                    On                      On

               3                     On                      Off

               6                     Off                     On

               7                     Off                     Off

                             I/O BASE ADDRESS

                Address                               SW2/1

  »                 A20h                               Off

                    A24h                                On

                         SHARED RAM CONFIGURATION

           Size                     SW2/2                   SW2/3

              8KB                     On                     On

  »           16KB                   Off                     On

              32KB                    On                     Off

              64KB                   Off                     Off

  Note:This setting configures how much system memory the card will use.

                               NETWORK SPEED

                 Speed                                 SW2/4

                    4Mbps                               On

  »                16Mbps                               Off

  Note:All cards on a segment must have this option set the same.

  DATA BUS CONFIGURATION

  Data Bus       SW2/5

    8-bit          On

   16 bit         Off

                       MISCELLANEOUS NOTES

  Switches SW2/6, SW2/7, and SW2/8 are reserved for future use.