The Farallon EtherMac Iprint Adapter (model PN 559) converts the networkcable to a modemcable/telephone line and that you will have to insert in a small gray box (doesn't have anything on it, no text, no manufacturer or model number). One end has two "modem" sockets, the other end has a small cable with an Appletalk connector on it. Make sure you have the small gray box, else it's useless! I saw on ebay that people are selling them, but without the gray box. In the original package the gray box is included! Setup is very easy. Goodluck!