1、CHIP AND SPEED: Network relay module carries mature and stable 32bit MCU STM32F103C6T6 chip, W5500 all hardware D CP or P protocol stack Ethernet chip, supporting 10/100M bps rate 2、TECHNICAL PARAMETERS: Network relay module supports standard RTU protocol. The flute serves as the TCP Server and supports the IP address DHCP function. The port number is 5000. You can view the module IP address through the serial port. The baud rate of UART communication is 115200 3、OUTPUT SIGNAL: The relay switch signal supports manual, flashover closure, flashover mode. The delay base of flashover closure or flashover is 0.1S, and the maximum flashover closure or flashover time can be set as 0xFFFFx0.15=6553.5Ss 4、SAVE AND READ: The device address ranges from 1 to 255, the default address is 255, which can be saved after power failure. The relay status and device address can be read using software or instructions 5、PROTECTION FUNCTION: Onboard 1 channel 5V 10A, 250V AC 10A, 3OV DC relay, can be continuously drawn 100,000 times, with diode pollution current protection, response time is short 6、SUPPORTED FUNCTIONS: Onboard power supply and relay switch indicator light, MCU reset button, reserved UART serial port and SWD program write port, support secondary development; The power supply voltage is DC7‑28V and supports 5.08mm terminal power supply with input non reverse connection protection Item Type: Network Relay Module Material: PCB 1. Main Control MCU: STM32F103C6T6 2. Network Chip: W5500 all hardware TCP or IP protocol stack Ethernet chip 3. Network Interface: 10M 100Mbps HR911105A network transformer 4. 5.08mm Terminal Power Supply Port: DC7-28V power input, GND is negative 5. MCU Reset Button: Short press reset 6. MCU SWD Debugging Interface: Secondary development burning 7. MCU UART Debugging Interface: GND, RXD, TXD: TTL level UART communication interfaces, GND, RXD, and TXD are connected to the GND, TXD, and RXD of the external control end respectively. The 3.3V or 5V external TTL serial port is supported. By default, used to view the IP address and port number of the device through the serial port with a baud rate of 115200. 8. 1 Relay Switch Signal Output: NC: Normally closed end, short connect with COM before relay closing, suspended after closing COM: Public terminal NO: Normal start, the relay is suspended before closing, and short connected with COM after closing 1 x Relay Module 1 x 8P Pin Header