<p>Ethernet Parameters:Number of ports: 1</p> <p>Interface standard: RJ45 interface</p> <p>LAN Ethernet: 10 \/ 100Mbps</p> <p>Data cache: 6K bytes</p> <p>Protection: 2KV electromagnetic isolation</p> <p>Network protocols: IP, , TCP, UDP, ICMP, IGMP, DCHP and so on</p> <p>Serial Port Parameters:</p> <p>Number of ports: 1</p> <p>Interface standard: TTL serial port, 2.54MM pin, 3.3V or 5V level</p> <p>Baud rate: 300 ~ 921600bps</p> <p>Data bits: 5,6,7,8,9</p> <p>Stop bit: 1,2 bit</p> <p>Parity: no parity, odd parity, even parity</p> <p>Flow Control: None</p> <p>Cache: 2K bytes</p> <p>Supporting Software:</p> <p>Parameter configuration: network configuration software, serial AT </p> <p>Module testing: test software (network, serial one)</p> <p>Basic Parameters:</p> <p>Working voltage DC3.3V \/ 5V</p> <p>Operating current 200mA @ 5V</p> <p>Pin Description:</p> <p>1. RESET: Factory reset pin, the module power-on detection, active low</p> <p>2. DIR: RS485 receive, send switch control pin</p> <p>3. TCPCS: TCP client mode, the port connection status indicator pin, the connection is successful output low</p> <p>4. RUN: module running status indication pin, input 2Hz square wave</p> <p>5. GND: Power Ground Pin</p> <p>6. 3.3V: 3.3V DC power input pin, 200mA, and 5V DC power supply alternatively</p> <p>7. GND: Power Ground Pin</p> <p>8. 5V: 5V DC power input pin, 200mA, and 3.3V DC power supply can choose one of two</p> <p>Colour:blue+silver</p> <p>Material:plastic+metal</p> <p>Package Contents:</p> <p>1 x CH9121 Serial Port to Ethernet Network Module</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>