We use a product from Excellink on all the series 3's and 4's connected to our 3000. One of the advantages of these connections is that they have multiple serial ports _AND_ a parallel port, so you can connect your printer to the 3K and to a PC! Info: Excellink, Inc. 1430 Tully Road, Suite 415 San Jose, CA 95122 Prices are pretty reasonable, too. the part number you want is: JC/MIO3000-2 at $349. a piece (in October, 1994). Hope this helps! I know the thoughts expressed here are my own because no one else would claim them! Don Harrington [log in to unmask] Boeing Commercial Airplane Group Phone: 206-931-4457 PO Box 3707 MS 5J-34 FAX: 206-931-2325 Seattle, WA 98124-2207