This device states POE, but also states that it uses a DC port for power input. Is that programmable in the initial setup, or does it always require the DC Power?

The module supports PoE Ethernet power supply and also has a DC port for power input. It can use either method for power, but the information does not specify if the choice is programmable in the initial setup.

Questions & Answers: Waveshare RS232/485/422 to RJ45 Ethernet Module, TCP/IP to Serial, with POE Function, Bi-Directional Transparent Transmission, Suitable for Data Acquisition, Intelligent Instrument Monitoring, etc

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Waveshare RS232/485/422 to RJ45 Ethernet Module, TCP/IP to Serial, with POE Function, Bi-Directional Transparent Transmission, Suitable for Data Acquisition, Intelligent Instrument Monitoring, etc

An RS232/485/422 device data acquisitor/IoT gateway designed for industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc
The module features RS232/485/422 and Ethernet port with PoE function, uses DC port (outer diameter: 5.5mm, inner diameter: 21mm) and screw terminals for power input. The case with rail-mount support, small in size, easy to install, cost-effective
Support PoE Ethernet power supply, applicable to IEEE 802.3af PoE standard. Support power supply of terminal block and DC 5.5 power interface, DC 6~36V wide voltage range input. It is suitable for the network upgrade of Modbus and can cooperate with 3D force control modal components
Support multiple communication modes. Support TCP server/TCP client/UDP mode/UDP multicast. MQTT/JSON to Modbus. More flexible conversion of multiple protocols. Support multi hosts roll polling. Different Network devices will be identified and respon

$68^.99 –