The WIZnet W232N is an industrial-grade Ethernet to RS232 converter, designed to provide reliable and efficient protocol conversion, including Modbus TCP to RTU/ASCII.With support for 10/100Mbps Ethernet, up to 230kbps serial speed, and a wide input voltage range of 5V to 36V, it ensures stable performance in industrial environments.Certified by CE and FCC, and offering multiple configuration options, the W232N is an ideal solution for seamless Ethernet integration in existing serial devices.FeaturesSerial to Ethernet – UART x1, up to 230 kbpsVarious network modes – supports TCP server, TCP client, and UDP modeAdvanced Protocol & Security – supports MQTT(S) for IoT, SSL/TLS for secure communication, and ModbusTCP/RTU for industrial useRobust hardware design – supports wide 5-36VDC input power. -40℃ to 85℃ operation temperature. Supports DIN rail mountingEasy config – Configured via command, configuration tool, and web server config SpecificationsRS232 to Ethernet protocol conversion deviceSupport multiple protocolsTCP ServerTCP ClientSSL TCP ClientTCP MixedModbus RTU/ASCII (available only in TCP Server mode)UDPMQTT ClientMQTTS ClientSupport custom protocols (Please submit custom protocol requests via this link)HTTPHTTPSCoAPExternal device OTAEnables easy implementation of Ethernet into existing serial devicesKC, FCC certified to ensure high system stability and reliabilitySupports 10/100Mbps Ethernet and up to 230kbps serial speedsSupports RS232C standard with D-SUB9 portSupports password setting for device discoverySupports AT command via D-SUB9 portConfigurable with Config-toolSupports Web ConfigWide input voltage 5~36VIndustrial-standard operating temperature -25~80°CSupports DIN rail (DIN 46277) mountingProtected against ESD What’s in the box?1 x WIZnet W232N Ethernet to RS232 ConverterResourcesDocumentationSoftware resourcesHardware resourcesTest & certification User GuideFactory Reset GuideMQTT Connection GuideSSL Connection GuideModbus Connection Guide Setup