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       # CABLETRON SYSTEMS, INC.
       
          E2020/-X (Coaxial)
       
          NIC Type         Ethernet                                      
          Transfer Rate    10Mbps                                        
          Data Bus         8-bit ISA                                     
          Topology         Linear Bus                                    
          Wiring Type      RG-58A/U 50ohm coaxial                        
                                                                         
                           AUI transceiver via DB-15 port                
          Boot ROM         Not Available                                 
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                     INTERRUPT REQUEST                      |
          |------------------------------------------------------------|
          |  IRQ  |  JP1A  |  JP1B  |  JP1C  |  JP1D  |  JP1E  | JP1F  |
          |-------+--------+--------+--------+--------+--------+-------|
          | | 2/9 |  Open  |  Open  |  Open  |  Open  |  Open  |Closed |
          |-+-----+--------+--------+--------+--------+--------+-------|
          |»|  3  | Closed |  Open  |  Open  |  Open  |  Open  | Open  |
          |-+-----+--------+--------+--------+--------+--------+-------|
          | |  4  |  Open  | Closed |  Open  |  Open  |  Open  | Open  |
          |-+-----+--------+--------+--------+--------+--------+-------|
          | |  5  |  Open  |  Open  | Closed |  Open  |  Open  | Open  |
          |-+-----+--------+--------+--------+--------+--------+-------|
          | |  6  |  Open  |  Open  |  Open  | Closed |  Open  | Open  |
          |-+-----+--------+--------+--------+--------+--------+-------|
          | |  7  |  Open  |  Open  |  Open  |  Open  | Closed | Open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      I/O BASE ADDRESS                      |
          |------------------------------------------------------------|
          |       Address       |        JP2        |       JP3        |
          |---------------------+-------------------+------------------|
          | » |      220h       |      Closed       |      Closed      |
          |---+-----------------+-------------------+------------------|
          |   |      280h       |      Closed       |       Open       |
          |---+-----------------+-------------------+------------------|
          |   |      300h       |       Open        |      Closed      |
          |---+-----------------+-------------------+------------------|
          |   |      380h       |       Open        |       Open       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CABLE TYPE                         |
          |------------------------------------------------------------|
          |            Type            |  SW1   |         JP7          |
          |----------------------------+--------+----------------------|
          | »    |   RG-58A/U 50ohm    |   On   |  Pins 1 & 2 Closed   |
          |      |       coaxial       |        |                      |
          |------+---------------------+--------+----------------------|
          |      | AUI transceiver via |  Off   |  Pins 2 & 3 Closed   |
          |      |     DB-15 port      |        |                      |
          |------------------------------------------------------------|
          | Note:JP7 is used to enabled the DC converter on the card   |
          | to supply power to coaxial networks.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SIGNAL QUALITY ERROR (SQE) TEST               |
          |------------------------------------------------------------|
          |                 Setting                  |       SW2       |
          |------------------------------------------+-----------------|
          | »               |        Disabled        |       Off       |
          |-----------------+------------------------+-----------------|
          |                 |        Enabled         |       On        |
          |------------------------------------------------------------|
          | Note:Signal Quality Error (SQE) is a test of the collision |
          | circuitry and path.                                        |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED | Color  |   Status    |           Condition           |
          |-----+--------+-------------+-------------------------------|
          |  1  | Green  | On/Blinking |   Data is being transmitted   |
          |-----+--------+-------------+-------------------------------|
          |  1  | Green  |     Off     | Data is not being transmitted |
          |-----+--------+-------------+-------------------------------|
          |  2  |  Red   | On/Blinking | Collision detected on network |
          |-----+--------+-------------+-------------------------------|
          |  2  |  Red   |     Off     |       Normal operation        |
          |-----+--------+-------------+-------------------------------|
          |  3  | Yellow | On/Blinking |    Data is being received     |
          |-----+--------+-------------+-------------------------------|
          |  3  | Yellow |     Off     |  Data is not being received   |
          |-----+--------+-------------+-------------------------------|
          |  4  | Green  |     On      |    Card is receiving power    |
          |-----+--------+-------------+-------------------------------|
          |  4  | Green  |     Off     |  Card is not receiving power  |
          +------------------------------------------------------------+