
ZENITH DATA SYSTEMS

LAN4TR-XT

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

[Image]

                             I/O BASE ADDRESS

                Address                                JP2

               0A20 - 0A2Fh                          Closed

                0A60 - 0A6Fh                           Open

                             INTERRUPT REQUEST

                 IRQ                                  JP3

                   2                                Closed

                    3                                 Open

                             BOOT ROM ADDRESS

        ROM Address           Data Memory (Buffer)            JP4
                                    Address

        CC000 - CDFFFh          CE000 - DDFFFh             Closed

         DC000 - DDFFFh          DE000 - DFFFFh              Open

                             LLC EPROM ENABLED

                 Setting                                JP5

          External EPROMs disabled                    Closed

           External EPROMs enabled                      Open

  Note:The LLC EPROMs contain the Logic Link Control program. The card
  will function properly with the LLC chips

