Tripp Lite's 6-ft. Premium Bi-Directional Parallel Printer Cable connects computers with a DB25 female parallel port to parallel printers with a centronics 36 female parallel port. The cable has DB25 male/Cent36 male connectors and supports bi-directional communication. It is manufactured from superior molded cable with integral strain relief and foil shielding for maximum EMI/RFI protection. Bi-directional communication allows your printer to broadcast printer error messages back to network computers. Use IEEE cable, if IEEE specifications are required.