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       # IMC NETWORK CORPORATION
       
          PCNIC
       
          NIC Type         Ethernet                                      
          Transfer Rate    10Mbps                                        
          Data Bus         8/16-bit ISA                                  
          Topology         Linear Bus                                    
          Wiring Type      RG--58A/U 50ohm coaxial                       
                                                                         
                           RG--62A/U 93ohm coaxial                       
                                                                         
                           75ohm coaxial                                 
                                                                         
                           AUI transceiver via DB-15 port                
          Boot ROM         Available                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CABLE TYPE                         ||
          |-----------------------------------------------------------||
          |        Type         |     S1     |    S2     |     S3     ||
          |---------------------+------------+-----------+------------||
          | » | RG--58A/U 50ohm |    Open    | Installed | 50ohm (P/N ||
          |   |     coaxial     |            |           | 90-39050)  ||
          |---+-----------------+------------+-----------+------------||
          |   | RG--62A/U 93ohm |    Open    | Installed | 93ohm (P/N ||
          |   |     coaxial     |            |           | 90-39093)  ||
          |---+-----------------+------------+-----------+------------||
          |   |  75ohm coaxial  |    Open    | Installed | 75ohm (P/N ||
          |   |                 |            |           | 90-39075)  ||
          |---+-----------------+------------+-----------+------------||
          |   | AUI transceiver | Installed  |   Open    |    N/A     ||
          |   | via DB-15 port  |            |           |            ||
          |---+--------------------------------------------------------|
          |   | Notes:S1 and S2 are sockets for a transformer chip     |
          |   | while S3 is a socket for a Cabling Option Resistor Kit |
          |   | (CORK). To choose a cable type insert the appropriate  |
          |   | chips into the appropriate sockets. All cards on the   |
          |   | network segment must use the same type of coaxial      |
          |   | cable.                                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     COMPATIBILITY MODE                     |
          |------------------------------------------------------------|
          |            Setting            |            JP1             |
          |-------------------------------+----------------------------|
          | »         |     Disabled      |     Pins 1 & 2 closed      |
          |-----------+-------------------+----------------------------|
          |           |      Enabled      |     PIns 2 & 3 closed      |
          |------------------------------------------------------------|
          | Note:On some systems the data bus timing is not truly IBM  |
          | PC/AT compatible. If the card will not initialize,         |
          | enabling compatibility mode may allow the card to operate  |
          | properly.                                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BOOT ROM ADDRESS                      |
          |------------------------------------------------------------|
          |       Address       |       SW1/1       |      SW1/2       |
          |---------------------+-------------------+------------------|
          |       C0000h        |        Off        |       Off        |
          |---------------------+-------------------+------------------|
          |       C8000h        |        On         |       Off        |
          |---------------------+-------------------+------------------|
          |       D0000h        |        Off        |        On        |
          |---------------------+-------------------+------------------|
          |       D8000h        |        Off        |       Off        |
          |------------------------------------------------------------|
          | Note:A boot ROM kit consists of a PEEL chip and a boot ROM |
          | chip. Both chips must be installed.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             I/O BASE ADDRESS (LAST TWO DIGITS)             |
          |------------------------------------------------------------|
          |    Address    | SW1/3  | SW3/4  | SW3/5  | SW3/6  | SW3/7  |
          |---------------+--------+--------+--------+--------+--------|
          |   x00 - x07   |   On   |   On   |   On   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |   x08 - x0F   |  Off   |   On   |   On   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |   x10 - x07   |   On   |  Off   |   On   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x18 - x1Fh   |  Off   |  Off   |   On   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |   x20 - x07   |   On   |   On   |  Off   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x28 - x2Fh   |  Off   |   On   |  Off   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |   x30 - x07   |   On   |  Off   |  Off   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x38 - x3Fh   |  Off   |  Off   |  Off   |   On   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x40 - x47h   |   On   |   On   |   On   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x40 - x4Fh   |  Off   |   On   |   On   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x50 - x57h   |   On   |  Off   |   On   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x50 - x5Fh   |  Off   |  Off   |   On   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x60 - x67h   |   On   |   On   |  Off   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x60 - x6Fh   |  Off   |   On   |  Off   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x70 - x77h   |   On   |  Off   |  Off   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x70 - x7Fh   |  Off   |  Off   |  Off   |  Off   |   On   |
          |---------------+--------+--------+--------+--------+--------|
          |  x80 - x87h   |   On   |   On   |   On   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  x88 - x8Fh   |  Off   |   On   |   On   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  x90 - x97h   |   On   |  Off   |   On   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  x90 - x9Fh   |  Off   |  Off   |   On   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xA0 - xA7h   |   On   |   On   |  Off   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xA0 - xAFh   |  Off   |   On   |  Off   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xB0 - xB7h   |   On   |  Off   |  Off   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xB0 - xBFh   |  Off   |  Off   |  Off   |   On   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xC0 - xC7h   |   On   |   On   |   On   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xC0 - xCFh   |  Off   |   On   |   On   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xD0 - xD7h   |   On   |  Off   |   On   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xD0 - xDFh   |  Off   |  Off   |   On   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xE0 - xE7h   |   On   |   On   |  Off   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xE0 - xEFh   |  Off   |   On   |  Off   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xF0 - xF7h   |   On   |  Off   |  Off   |  Off   |  Off   |
          |---------------+--------+--------+--------+--------+--------|
          |  xF0 - xFFh   |  Off   |  Off   |  Off   |  Off   |  Off   |
          |------------------------------------------------------------|
          | Note:The two digits selected here must be added to the     |
          | digit selected in the following table.                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               I/O BASE ADDRESS (FIRST DIGIT)               |
          |------------------------------------------------------------|
          |            Address            |           SW1/8            |
          |-------------------------------+----------------------------|
          |          2xx - 2xxh           |             On             |
          |-------------------------------+----------------------------|
          |          3xx - 3xxh           |            Off             |
          +------------------------------------------------------------+