Given the way Acksull asked the question, one would assume he has no idea what irving6744 means by "jp1".

Acksull, start at Rob's page

it has links to JP1 information, including the Yahoo JP1 group and how to build a JP1 cable and three or four of the vendors for pre built JP1 cables.

Transferring all the codes and learned functions from one 1994 is the simplest JP1 operation (you can do much more with it to customize your 1994's).