1. Supports bidirectional transparent transmission of serial port data and network data 2. Supports TCP Server, TCP Client, UDP Client, and UDP Server operating modes; 3. Supports a 10M, full-duplex/half-duplex auto-sensing Ethernet interface, compatible with the 802.3 standard; 4. Supports automatic MDI/MDIX line conversion; 5. Supports automatic IP address acquisition via DHCP; Supports chip parameter configuration via software and serial port; Supports the KEEPALIVE mechanism; Supports serial port baud rates from 300BPS to 921600BPS TCP Client Mode:In TCP Client mode, upon power-up, the module will actively connect to the TCP Server. Once the connection is established, bidirectional transparent transmission of network and serial port data is possible. The TCP client application model is as follows: Suitable for field data acquisition and upload server mode. TCPSERVER Mode: In TCPSERVER mode, after powering on, the module will monitor the local port for client connection requests. Once a connection is established, bidirectional transparent transmission of network and serial port data is possible. UDPCLIENT Mode: In UDPCLIENT mode, after powering on, the module transparently forwards data sent to the local port (from the destination IP and port) to the module's serial port. Similarly, data sent to the module's serial port is forwarded via UDP to the specified destination IP and port. UDPSERVER Mode: In UDPSERVER mode, all data sent to the local IP and port is received and forwarded to the serial port. Data sent to the module's serial port is also forwarded via UDP to the corresponding UDP IP and port. Color: As Shown Material: PCB Package Contents: 1 x Serial Port Module