Help..Super Serial Card

[jm61@cornell.edu (John Mioduszewski)]

      I just picked up a Apple super serial card II at a computer fest for
$2.00.  But they had no docs on it.  Could somekone tell me what the two
sets of dip switches do, and what the pin outs are on the plug?  Will this
card work ok on a IIgs?.

     On the card it has the following markings:
     upper left corner - Apple 820-0046-c
     written across bottom - 670-0020-B Fcc id BCG6DSSUPERSER 1981 apple 
                                 super serial card II
     

           Thanks John