We have experienced a power outage which seems to have affected the 2335A multiplexer on site such that it no longer works properly. I understand there are certain settings that need to be established but without the manuals (which disappeared a long time ago), we are not sure how to set this to work properly.The devices connected through this mux are two Epson dot matrix printers and a Laserjet III printer. Michael T. Hurdle MPE Systems Management (Nortel) Phone: 001-615-264-6174