Junction systems which meet protection class IP67 connectors provide a cost-effective and practical wiring system in the field for sensors and actuators. Junction boxes are used anywhere sensor and actuaotr signals need to be extended quickly and easly for connection to their superordinate control system. Individual signals are either connected directly to the higher ranking syetem via homerun cable or via connection interface. Optional LED displays for signal and power reduce the effort required to track down errors. 1. Y-Junction 2. DUO-Junction     * M12x1 - M12x1     * M12x1 - M8x1     * M12x1 - Valveplug 3. Junction boxes     * M12x1     * M8x1 4. T-Junction