USR-TCP232-304 RS-485 to Ethernet ConvertersSpecificationsThe USR-TCP232-304 is a compact industrial communication converter that enables transparent connection between RS-485 serial devices and an Ethernet network (TCP/IP). It functions as a serial-to-Ethernet gateway, ideal for automation systems, remote device monitoring, and integration of legacy serial equipment into modern networks.Electrical & CommunicationModel: USR-TCP232-304Type: RS-485 to Ethernet Serial ConverterProcessor: 32-bit embedded microcontrollerPower Input: DC 5.0 – 7.0 V via DC barrel jackPower Consumption: ~150 mA @ 5 VEthernet (Network) SpecificationsInterface: 1 × RJ45 Ethernet PortSpeed: 10/100 Mbps (Auto negotiation)Auto MDI/MDIX: SupportedIP Configuration: Static IP or DHCPNetwork Protocols: IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP, IPv4Concurrent TCP Clients (Server Mode): Up to 16 clientsSerial (RS-485) SpecificationsInterface: 1 × RS-485 (2-wire)Connector: Screw-terminal or captive terminal blockBaud Rate Range: 600 bps to 230,400 bpsData Bits: 5, 6, 7, 8Parity: None, Odd, Even, Mark, SpaceStop Bits: 1 or 2Buffer: Internal receive and transmit buffers for serial/Ethernet bridgingNetwork Modes SupportedTCP ServerTCP ClientUDP ServerUDP ClientVirtual COM / RFC2217-style modeModbus RTU to Modbus TCP gatewayMulti-host polling modeConfiguration OptionsWeb-based configuration interfaceAT command controlDedicated configuration softwareVirtual COM port redirector software for PC applicationsConfigurable communication parameters (baud rate, parity, stop bits, TCP mode, etc.)Physical & EnvironmentalDimensions: Compact enclosure (approx. ~73 × 70 × 25 mm)Mounting: Wall or panel mount compatibleOperating Temperature: -25 °C to 75 °CStorage Temperature: -40 °C to 105 °COperating Humidity: 5% – 95% RH (non-condensing)Indicators: LEDs for status (power, network, serial activity)EMC Protection: Meets industrial surge, ESD, and noise immunity standardsProtocol & Performance FeaturesConverts Modbus RTU (over RS-485) to Modbus TCP (over Ethernet)Supports stable connection mechanisms (auto-reconnect, heartbeat packets)Reliable data forwarding between serial and Ethernet networksMulti-client support for parallel host connectionsTypical ApplicationsIndustrial device networkingPLC and sensor integration over EthernetSCADA and remote monitoring systemsIoT and M2M communicationLegacy serial device modernisationBuilding automation systemsDistributed control systems SKU: LKIA00197 Categories: Industrial Automation, PLC Accessories
