ZENITH DATA SYSTEMS
===================

   LAN16TR-AT

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

<gopher://bitreich.org/I/th99/n/U-Z/40282-1.png>
   

   +------------------------------------------------------------+
   |                FACTORY CONFIGURED SETTINGS                 |
   |------------------------------------------------------------|
   |            Jumper            |           Setting           |
   |------------------------------+-----------------------------|
   |             JP1              |           Unused            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      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   |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |   DC000 - DFFFFh   |        Off        |        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 SEGMENT 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  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         CABLE TYPE                         |
   |------------------------------------------------------------|
   |                  Type                  |      SW1/12       |
   |----------------------------------------+-------------------|
   |  Unshielded twisted pair (RJ-45 Jack)  |        Off        |
   |----------------------------------------+-------------------|
   | Shielded twisted pair (DB-9 Connector) |        On         |
   +------------------------------------------------------------+