Seb has gone south, though I would connect u.s. robotics modem to that port also have another spare port I could use printed ld 22 adan does anyone have have print out i could use when I make changes in ld 17 to config port for modem will use hyperterminal on far end. I installed this switch 12 years ago and have not installed a new switch in at least 10 retired Verizon 37 years service.