ZENITH DATA SYSTEMS

LAN16TRF-AT

NIC Type      Token-Ring
Transfer Rate 4/16Mbps
Data Bus      16-bit ISA
Topology      Ring
Wiring Type   50/62.5/100µ Fiber optic cable
Boot ROM      Available

[Image]

                           CONNECTIONS

             Purpose                         Location

   ST Receive Connector (gray)                 CN1

  ST Transmit Connector (black)                CN2

            I/O BASE ADDRESS

   Address        SW1/1        SW1/2

  A00 - A0Fh       On            On

  A20 - A2Fh       Off           On

  A40 - A4Fh       On           Off

  A60 - A6Fh       Off          Off

    INTERRUPT REQUEST

   IRQ     SW1/3   SW1/4

    3       On      On

    9      Off      On

   10       On      Off

   11      Off      Off

                  BOOT ROM ADDRESS

     Address            SW1/5            SW1/6

  CC000 - CFFFFh         On                On

  D0000 - D3FFFh         Off               On

  D8000 - D8FFFh         Off              Off

  DC000 - DFFFFh         On               Off

          DMA CHANNEL

  Channel    SW1/7      SW1/8

   DMA0        On        On

   DMA5       Off        On

   DMA6        On        Off

   DMA7       Off        Off

                                 BOOT ROM

                 Setting                               SW1/9

  »                Disabled                              On

                    Enabled                             Off

                               NETWORK SPEED

                Speed                               SW1/10

                4Mbps                                 Off

               16Mbps                                 On

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

                          LLC EPROM CONFIGURATION

                 Setting                               SW1/11

  »              ROM-based LLC                           On

                 RAM-based LLC                          Off

       Note:The LLC EPROMs contain the Logic Link Control program. With
       the LLC ROMs disabled, the LLC logic can be loaded into RAM. The
       card will function properly with the LLC chips disabled.

                                CABLE TYPE

                   Type                                 SW1/12

  »      50/62.5/100µ Fiber optic cable                   On

           Shielded Twisted Pair (DB-9                   Off
                   Connector)

                       ALTERNATE CONCENTRATOR ENABLE

                  Setting                                JP2

  »    Default concentrator enabled (IEEE         Pins 2 & 3 Closed
                    802.5j)

         Alternate concentrator enabled           Pins 1 & 2 Closed

                              BOOT ROM MEMORY

                 Setting                                JP3

  »     Boot ROM memory space required                 Closed

       Boot ROM memory space not required               Open

                             DIAGNOSTIC LED(S)

        LED               Status                    Condition

       LED1                 On             Card is properly connected to
                                                       MAU

       LED1                Off            Card is not properly connected
                                                      to MAU

       LED2                 On            Card is inserted into the ring

       LED2                Off             Card is not inserted into the
                                                       ring