Make: Abell C&C Corp. 
Model: EN-016


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Info below from http://www.verycomputer.com
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Here are the settings for an Abell EN-016 Ethernet Controller.

IRQ selection is obvious.

Connector type uses row C for Cheapernet(coax), row E for Ethernet(15-pin D) .

Control port is selected via DIP switches 5,6,7,8.  They follow a straight binary sequence as follows:
OFF OFF OFF OFF = 200H
OFF OFF OFF ON  = 220H
OFF OFF ON  OFF = 240H
    etc......
ON  OFF OFF OFF = 300H  (default)
    etc......
ON  ON  ON  ON  = 3E0H

Boot ROM address uses DIP switches 1,2,3,4.  The sequence is:
OFF OFF OFF OFF = C000H
OFF OFF OFF ON  = C200H
OFF OFF ON  OFF = C400H
    etc......
    etc......
ON  ON  ON  ON  = DE00H

DIP switches 9,10 and links J6 & J1 control boot ROM as follows:
OFF OFF OPEN  OPEN  = 8K (2764)
OFF ON  SHORT OPEN  = 16K (27128)
ON  OFF SHORT SHORT = 32H (27256)
ON  ON  OPEN  OPEN  = disabled

J4 installed for WD8003E type, removed for NE1000 / NE2000 type.

J5 removed for normal PC/AT bus timing, installed for odd-balls.

J7 controls 8-bit or 16-bit data path selection (i.e. NE1000 / NE2000).
The manual says installed enables "auto switch mode".  Experience suggests otherwise......  You may need to experiment