SCALANCE X204IRT PRO, MANAGED IE IRT SWITCH WITH DEGREE OF PROTECTION IP65/67, 4X 10/100 MBIT/S PUSH-PULL RJ45 PORTS, ERROR SIGNALING CONTACT WITH SET BUTTON; REDUNDANT POWER SUPPLY; PROFINET IO DEVICE, NETWORK MANAGEMENT, REDUNDANCY MANAGER INTEGRATED, INCL. ELECTRON. MANUAL ON CD-ROM, C-PLUG OPTIONAL