Overview It is a multi-functional device data acquisitor / IoT gateway with 4-ch RS485 and an Ethernet port (PoE version optional), small in size, easy to install, and cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring, meeting various application scenarios. Package include 1. 4-CH RS485 TO POE ETH (B) x1 2. Rail-mount buckle x1 3. Screwdriver x1 4. Screws pack x1