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       # KATRON TECHNOLOGIES, INC.
       
          ET-16TB
       
          NIC Type         Ethernet                                      
          Transfer Rate    10Mbps                                        
          Data Bus         16-bit ISA                                    
          Topology         Star                                          
                                                                         
                           Linear bus                                    
          Wiring Type      Unshielded twisted pair                       
                                                                         
                           RG-58A/U 50ohm coaxial                        
          Boot ROM         Available                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                      I/O BASE ADDRESS                      |
          |------------------------------------------------------------|
          |     Address      |        JP1A        |        JP1B        |
          |------------------+--------------------+--------------------|
          | » |     300h     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |     320h     | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |     340h     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |     360h     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     COMPATIBILITY MODE                     |
          |------------------------------------------------------------|
          |            Setting            |            JP1C            |
          |-------------------------------+----------------------------|
          | »         |     Disabled      |      Pins 2 & 3 cosed      |
          |-----------+-------------------+----------------------------|
          |           |      Enabled      |     Pins 1 & 2 closed      |
          |------------------------------------------------------------|
          | Note:On some systems the data bus timing is not truly IBM  |
          | PC/AT compatible. If the card is not initializing,         |
          | enabling compatibility mode may allow the card to operate  |
          | properly.                                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BOOT ROM ADDRESS                      |
          |------------------------------------------------------------|
          |     Address      |    JP1D     |    JP1E     |    JP1F     |
          |------------------+-------------+-------------+-------------|
          | » |   C0000 -    | Pins 2 & 3  | Pins 2 & 3  | Pins 2 & 3  |
          |   |    C1FFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   C4000 -    | PIns 1 & 2  | Pins 2 & 3  | Pins 2 & 3  |
          |   |    C5FFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   C8000 -    | Pins 2 & 3  | PIns 1 & 2  | Pins 2 & 3  |
          |   |    C9FFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   CC000 -    | PIns 1 & 2  | PIns 1 & 2  | Pins 2 & 3  |
          |   |    CDFFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   D0000 -    | Pins 2 & 3  | Pins 2 & 3  | PIns 1 & 2  |
          |   |    D1FFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   D4000 -    | PIns 1 & 2  | Pins 2 & 3  | PIns 1 & 2  |
          |   |    D5FFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   D8000 -    | Pins 2 & 3  | PIns 1 & 2  | PIns 1 & 2  |
          |   |    D9FFFh    |   closed    |   closed    |   closed    |
          |---+--------------+-------------+-------------+-------------|
          |   |   DC000 -    | PIns 1 & 2  | PIns 1 & 2  | PIns 1 & 2  |
          |   |    DDFFFh    |   closed    |   closed    |   closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          BOOT ROM                          |
          |------------------------------------------------------------|
          |          Setting           |             JP1G              |
          |----------------------------+-------------------------------|
          | » |        Disabled        |       Pins 2 & 3 Closed       |
          |---+------------------------+-------------------------------|
          |   |        Enabled         |       Pins 1 & 2 Closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     INTERRUPT REQUEST                      |
          |------------------------------------------------------------|
          | IRQ  | JP2A  | JP2B  | JP2C  | JP2D  | JP2E  | JP2F | JP2G |
          |------+-------+-------+-------+-------+-------+------+------|
          | |2/9 | Open  | Open  | Open  | Open  | Open  | Open |Closed|
          |-+----+-------+-------+-------+-------+-------+------+------|
          |»| 3  | Open  | Open  | Open  | Open  | Open  |Closed| Open |
          |-+----+-------+-------+-------+-------+-------+------+------|
          | | 4  | Open  | Open  | Open  | Open  |Closed | Open | Open |
          |-+----+-------+-------+-------+-------+-------+------+------|
          | | 5  | Open  | Open  | Open  |Closed | Open  | Open | Open |
          |-+----+-------+-------+-------+-------+-------+------+------|
          | | 10 | Open  | Open  |Closed | Open  | Open  | Open | Open |
          |-+----+-------+-------+-------+-------+-------+------+------|
          | | 11 | Open  |Closed | Open  | Open  | Open  | Open | Open |
          |-+----+-------+-------+-------+-------+-------+------+------|
          | | 12 |Closed | Open  | Open  | Open  | Open  | Open | Open |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CABLE TYPE                         |
          |------------------------------------------------------------|
          |               Type                |          JP3           |
          |-----------------------------------+------------------------|
          | » |    RG-58A/U 50ohm coaxial     |   Pins 1 & 2 closed    |
          |---+-------------------------------+------------------------|
          |   |    Unshielded twisted pair    |   Pins 2 & 3 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CONNECTORS                         |
          |------------------------------------------------------------|
          |             Function             |        Location         |
          |----------------------------------+-------------------------|
          |          External LED1           |           JP4           |
          |------------------------------------------------------------|
          | Note:The External LED1 functions exactly as LED1 in the    |
          | following table.                                           |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  | Color  |     Status     |         Condition         |
          |------+--------+----------------+---------------------------|
          | LED1 | Green  |       On       |   Twisted pair network    |
          |      |        |                |    connection is good     |
          |------+--------+----------------+---------------------------|
          | LED1 | Green  |    Blinking    |   Twisted pair network    |
          |      |        |                |   connection is broken    |
          |------+--------+----------------+---------------------------|
          | LED2 | Yellow | Constantly On  |   Twisted pair receive    |
          |      |        |                |  wires are reversed and   |
          |      |        |                |         corrected         |
          |------+--------+----------------+---------------------------|
          | LED2 | Yellow |  Intermittent  | Card is transmitting for  |
          |      |        |    Blinking    |     an extended time      |
          |------+--------+----------------+---------------------------|
          | LED2 | Yellow |      Off       |     Normal operation      |
          |------+--------+----------------+---------------------------|
          | LED3 | Green  |       On       | Data is being transmitted |
          |      |        |                |        or received        |
          |------+--------+----------------+---------------------------|
          | LED3 | Green  |      Off       |     Data is not being     |
          |      |        |                |  transmitted or received  |
          |------+--------+----------------+---------------------------|
          | LED4 | Yellow |       On       |   Collision detected on   |
          |      |        |                |          network          |
          |------+--------+----------------+---------------------------|
          | LED4 | Yellow |      Off       |     Normal operation      |
          |------------------------------------------------------------|
          | Note:If the cable type is RG-58A/U 50ohm coaxial, only     |
          | LED3 will function.                                        |
          +------------------------------------------------------------+