Ex Connection Rail 4-Port PoE is a high performance PoE switch and 24 V DC power supply for hazardous areas. It is designed to connect explosion-protected network cameras over long distances. The network connection can be realized via optical fiber or copper-bound Ethernet, and is available for single-mode or multi-mode fiber. The power supply provides additional power to the cameras heater to extend the temperature range. The Ex d-rated enclosure is made from seawater-resistant copper-free aluminum and is ready for wall mounting.