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       # TIARA COMPUTER SYSTEMS, INC.
       
          Ethernet LanCard * 2000
       
          NIC Type         Ethernet                                      
          Transfer Rate    10Mbps                                        
          Data Bus         16-bit ISA                                    
          Topology         Linear Bus                                    
          Wiring Type      RG-58A/U 50ohm coaxial                        
                                                                         
                           AUI transceiver via DB-15 port                
          Boot ROM         Available                                     
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                         CABLE TYPE                         |
          |------------------------------------------------------------|
          |              Type              |         JP1 - JP7         |
          |--------------------------------+---------------------------|
          |     RG-58A/U 50ohm coaxial     |     Pins 2 & 3 Closed     |
          |--------------------------------+---------------------------|
          | AUI transceiver via DB-15 port |     Pins 1 & 2 Closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CABLE LENGTH CONFIGURATION                 |
          |------------------------------------------------------------|
          |                      Setting                      |  JP8   |
          |---------------------------------------------------+--------|
          |  Long cable segment mode (100 nodes on a single   | Closed |
          |                  984 foot cable)                  |        |
          |---------------------------------------------------+--------|
          | Short cable segment mode (30 nodes on a sigle 607 |  Open  |
          |                    foot cable)                    |        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               ETHERNET VERSION CONFIGURATION               |
          |------------------------------------------------------------|
          |                 Version                  |       JP9       |
          |------------------------------------------+-----------------|
          | » | Thin Ethernet version 2 (IEEE 802.3) |      Open       |
          |---+--------------------------------------+-----------------|
          |   |       Thin Ethernet version 1        |     Closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         WAIT STATE                         |
          |------------------------------------------------------------|
          |            Setting            |     JP18     |    JP34     |
          |-------------------------------+--------------+-------------|
          | » | Zero wait states enabled  |    Closed    |   Closed    |
          |---+---------------------------+--------------+-------------|
          |   | Zero wait states disabled |     Open     |    Open     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          BOOT ROM                          |
          |------------------------------------------------------------|
          |             Setting             |           JP19           |
          |---------------------------------+--------------------------|
          | » |          Disabled           |           Open           |
          |---+-----------------------------+--------------------------|
          |   |           Enabled           |          Closed          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     INTERRUPT REQUEST                      |
          |------------------------------------------------------------|
          |IRQ | JP10 | JP11 | JP12 | JP13 | JP14 | JP15 | JP16 | JP17 |
          |----+------+------+------+------+------+------+------+------|
          |»|3 | Open | Open | Open | Open |Closed| Open | Open | Open |
          |-+--+------+------+------+------+------+------+------+------|
          | |2 | Open | Open | Open |Closed| Open | Open | Open | Open |
          |-+--+------+------+------+------+------+------+------+------|
          | |4 | Open | Open | Open | Open | Open |Closed| Open | Open |
          |-+--+------+------+------+------+------+------+------+------|
          | |5 | Open | Open | Open | Open | Open | Open |Closed| Open |
          |-+--+------+------+------+------+------+------+------+------|
          | |7 | Open | Open | Open | Open | Open | Open | Open |Closed|
          |-+--+------+------+------+------+------+------+------+------|
          | |10| Open | Open |Closed| Open | Open | Open | Open | Open |
          |-+--+------+------+------+------+------+------+------+------|
          | |11| Open |Closed| Open | Open | Open | Open | Open | Open |
          |-+--+------+------+------+------+------+------+------+------|
          | |15|Closed| Open | Open | Open | Open | Open | Open | Open |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BOOT ROM ADDRESS                      |
          |------------------------------------------------------------|
          | Address | JP24 |  JP25  |  JP26  |  JP27  |  JP28  | JP29  |
          |---------+------+--------+--------+--------+--------+-------|
          | C0000h  | Open | Closed | Closed | Closed | Closed |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | C2000h  | Open | Closed | Closed | Closed | Closed | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | C4000h  | Open | Closed | Closed | Closed |  Open  |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | C6000h  | Open | Closed | Closed | Closed |  Open  | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | C8000h  | Open | Closed | Closed |  Open  | Closed |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | CA000h  | Open | Closed | Closed |  Open  | Closed | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | CC000h  | Open | Closed | Closed |  Open  |  Open  |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | CE000h  | Open | Closed | Closed |  Open  |  Open  | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | D0000h  | Open | Closed |  Open  | Closed | Closed |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | D2000h  | Open | Closed |  Open  | Closed | Closed | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | D4000h  | Open | Closed |  Open  | Closed |  Open  |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | D6000h  | Open | Closed |  Open  | Closed |  Open  | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | D8000h  | Open | Closed |  Open  |  Open  | Closed |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | DA000h  | Open | Closed |  Open  |  Open  | Closed | Open  |
          |---------+------+--------+--------+--------+--------+-------|
          | DC000h  | Open | Closed |  Open  |  Open  |  Open  |Closed |
          |---------+------+--------+--------+--------+--------+-------|
          | DE000h  | Open | Closed |  Open  |  Open  |  Open  | Open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      I/O BASE ADDRESS                      |
          |------------------------------------------------------------|
          |   Address   |   JP20    |   JP21    |   JP22    |   JP23   |
          |-------------+-----------+-----------+-----------+----------|
          | » |  300h   |  Closed   |  Closed   |  Closed   |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  200h   |  Closed   |  Closed   |  Closed   |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  220h   |   Open    |  Closed   |  Closed   |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  240h   |  Closed   |   Open    |  Closed   |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  260h   |   Open    |   Open    |  Closed   |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  280h   |  Closed   |  Closed   |   Open    |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  2A0h   |   Open    |  Closed   |   Open    |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  2C0h   |  Closed   |   Open    |   Open    |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  2E0h   |   Open    |   Open    |   Open    |  Closed  |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  320h   |   Open    |  Closed   |  Closed   |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  340h   |  Closed   |   Open    |  Closed   |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  360h   |   Open    |   Open    |  Closed   |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  380h   |  Closed   |  Closed   |   Open    |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  3A0h   |   Open    |  Closed   |   Open    |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  3C0h   |  Closed   |   Open    |   Open    |   Open   |
          |---+---------+-----------+-----------+-----------+----------|
          |   |  3E0h   |   Open    |   Open    |   Open    |   Open   |
          +------------------------------------------------------------+