IBM CORPORATION

TOKEN-RING PC ADAPTER

NIC Type      Token-Ring
Transfer Rate 4Mbps
Data Bus      8-bit ISA
Topology      Ring
Wiring Type   Shielded twisted pair
Boot ROM      Available

[Image]

                        BOOT ROM ADDRESS SELECTION

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

  »    CC00h      Off       On        On        Off       Off       On

       A000h      On        Off       On        On        On        On

       A400h      On        Off       On        On        Off       On

       A800h      On        Off       On        Off       On        On

       AC00h      On        Off       On        Off       Off       On

       B000h      On        Off       Off       On        On        On

       B400h      On        Off       Off       On        Off       On

       B800h      On        Off       Off       Off       On        On

       BC00h      On        Off       Off       Off       Off       On

       C000h      Off       On        On        On        On        On

       C400h      Off       On        On        On        Off       On

       C800h      Off       On        On        Off       On        On

       CE00h      Off       On        On        Off       Off       Off

       D000h      Off       On        Off       On        On        On

       D200h      Off       On        Off       On        On        Off

       D400h      Off       On        Off       On        Off       On

       D800h      Off       On        Off       Off       On        On

       DC00h      Off       On        Off       Off       Off       On

       E000h      Off       Off       On        On        On        On

       E400h      Off       Off       On        On        Off       On

       E800h      Off       Off       On        Off       On        On

       EC00h      Off       Off       On        Off       Off       On

       F000h      Off       Off       Off       On        On        On

  INTERRUPT REQUEST SELECTION

    IRQ      SW1/7      SW1/8

     2         On        On

     3         On        Off

     7        Off        Off

                        I/O BASE ADDRESS SELECTION

              I/O Address                            SW2/1 - 8

  »                 A20h                                Off

                    A24H                                On

                       MISCELLANEOUS TECHNICAL NOTES

  The boot ROM can only be used if the workstation operates at 6MHz or
  less, uses 1 wait state on the bus, and does not contain a hard disk.