dave@RIACS.ARPA (06/28/84)
From: "David L. Gehrt" <dave@RIACS.ARPA> We have a Data Products Interface daughter board for our qms laser printer and would like to connect the thing to the dmf parallel lp port. The question is whether this is doable, electrically. Put another way, are there enough similarities between the electrical signals that it is a cabling and/or signal inversion problem only. Also, if signal conversion is required does anyone know of a device which will perform the necessary conversion. ----------
bruce@godot.UUCP (Bruce Nemnich) (06/30/84)
You are in luck; the dmf32 lp port is fully compatable with the QMS dataproducts interface...all you need is a cable to go from the db-37 on the dmf end to a db-50; I believe the correct cable is bc27a from DEC (also available from Inmac and others), but you should verify that with someone; I don't have a catalog with me. We are running exactly that configuration with our QMS. You will, of course need a dmf driver which supports the lp port; there have been many pointers to improved dmf drivers posted recently; if not, I have one. -- --Bruce Nemnich, Thinking Machines Corporation, Waltham, MA {decvax!cca,ihnp4!mit-eddie,allegra!ias}!godot!bruce, BJN@MIT-MC.ARPA