ALTA RESEARCH CORPORATION

TOKENCOMBO-16 S/U (ISA)

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

              Shielded twisted pair (DB-9 port)
Boot ROM      Available

[Image]

                            COMPATIBILITY MODE

                 Setting                                JP1

  »                Disabled                            Closed

                    Enabled                             Open

  Note: If the system in which the card is to be installed is an 80286
  using an older C & T or VLSI chipset and the card is not loading the
  network shell properly, compatibility mode should be enabled (JP1
  open). On some revisions of this card, JP1 might not be present.

                            BASE MEMORY ADDRESS

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

       C0000h      On       Off       Off       Off      Off        Off

       C2000h      On       Off       Off       Off      Off        On

       C4000h      On       Off       Off       Off       On        Off

       C6000h      On       Off       Off       Off       On        On

       C8000h      On       Off       Off       On       Off        Off

       CA000h      On       Off       Off       On       Off        On

  »    CC000h      On       Off       Off       On        On        Off

       CE000h      On       Off       Off       On        On        On

       D0000h      On       Off       On        Off      Off        Off

       DC000h      On       Off       On        Off      Off        On

  Note: If using two cards in the same system, the card set to secondary
  should use address DC000h as its default.

                              SHARED RAM SIZE

            Size                     SW1/7                  SW1/8

              8KB                     Off                    Off

  »           16KB                    Off                     On

              32KB                    On                     Off

              64KB                    On                      On

                             INTERRUPT REQUEST

            IRQ                     SW2/1                   SW2/2

  »           2/9                    Off                     Off

               3                     Off                      On

               6                      On                     Off

               7                      On                      On

                           NETWORK SEGMENT SPEED

                  Speed                                SW2/3

  »                 16Mbps                              On

                    4Mbps                               Off

  Note: All cards on the network segment must have this option set
  identically.

                          PRIMARY/ALTERNATE MODE

           Setting                    Address                SW2/4

  »           Primary                   A20h                  Off

             Alternate                  A24h                   On

  Note: If two cards are to be used in a single system, one of the cards
  must be set to primary and the other one must be set to alternate.

                             DIAGNOSTIC LED(S)

     LED         Color         Status                Condition

    LED1          Red            On         Data is being transmitted or
                                                      received

    LED1          Red           Off         Data is not being transmitted
                                                    or received

                          MISCELLANEOUS NOTES

  The card automatically senses which network connector is being used.