Part Number: Modbus POE ETH Relay 16CH 16-Ch Ethernet Relay Module, Modbus RTU / Modbus TCP Protocol, Ethernet Port Communication, Supports PoE Power Supply, With Various Isolation And Protection Circuits, Industrial Grade Rail-Mount Case This product is a 16-ch relay module designed for industrial environments, featuring dual Ethernet interfaces control. It adopts Modbus RTU / Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case. The Modbus POE ETH Relay 16CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirements. Dual Ethernet ports design, supports Ethernet port communication cascade and PoE power supply cascade. Features flash-on, flash-off function, it is possible to set the delay closing after opening or delay opening after closing