SERIN2 serpin,36081,300,Main,[Wait ("A"),dec3 B7]

could the line above be explain in a little more detail. I follow to what you are to do, but I just do not understand it. I am trying something on my end with SERIN and SEROUT, but I think that I might have to switch to this SERIN2 and SEROUT2. Might make life easier. Who know.