Moxa TN-5518A-8PoE-2GTXBP-WV-CT-T Conformal Coating Managed Ethernet Switch with 18 ports including 8 Fast Copper PoE ports M12 (100 Mbps), 8 Fast Copper ports M12 (100 Mbps) and 2 Gigabit Copper ports M12 (1000 Mbps) with bypass relay function support, Extended Temp -40 to 75 C operating temperature, dual redundant power inputs 16.8 to 137.5 VDC (24-110 VDC). EN50155 certified ideal for railway applications. The ToughNet TN-5518A-8PoE series M12 managed Ethernet switches are designed for railway applications, such as rolling stock, and wayside installations. The TN series switches use M12 and other circular connectors to ensure tight, robust connections, and guarantee reliable operation against environmental disturbances, such as vibration and shock. The TN-5518A-8PoE series Ethernet switches provide 16 Fast Ethernet M12 ports with 8 IEEE 802.3at/af compliant PoE (Power-over-Ethernet) ports and 2 ports on the down side to provide the Gigabit Ethernet interface with an optional bypass relay function. The PoE switches are classified as power source equipment (PSE) and provide up to 30 watts of power per port, and can be used to power IEEE 802.3at/af compliant powered devices (PDs), such as IP cameras, wireless access points, and IP phones.