it's an Excelan board, but doesn't give a model number -- It is a 201. Docs for the card and the basic firmware are on bitsavers. I'm trying to locate the manuals for the other (VME,Qbus,and Unibus) versions if anyone has them. The optional downloaded TCP stack had an interesting feature that the IP address was hardwired to the Ethernet adr. Between that, and it having worse performance than the code running on the main processor, most people ran the cards in logical link mode.