1、Independent TCP to RS485 transparent transmission; communication parameters can be set through the web; the module acts as a server. 2、With 5 LED indicators, clear and simple wiring terminals, easy and convenient to use. 3、Suitable for automatic control of building automation control, security, traffic control, electricity, factories, mines, railways, and electricity 4、With stable and excellent performance can be used to replace old or damaged relay module. 5、Small in size and light in weight, convenient to carry and use at any time, very convenient and practical. Item Type: RS232/485/422 to Ethernet Serial Device Server Material: Aluminum alloy Purpose: Building automation, security, traffic control, electricity, factories, mines, railways COM1 (RS485 communication parameters) Support Function: 485 port and network port transparent transmission Interface Type: RS485, screw terminal Baud Rate: 9600-115200 (default baud rate is 9600) Communication Format: 8-bit data, 1-bit stop, no parity (configurable) Transmission Distance: Approx. 1200m / 3937ft COM2 (RS422 communication parameters) Support Function: TCP to RS422 transparent transmission Interface Type: RS485, screw terminal Baud Rate: 9600-115200 (default baud rate is 9600) Communication Format: Default: 8-bit data, 1-bit stop, no parity (configurable) Transmission Distance: Approx. 1200m / 3937ft, when the baud rate is 9600 COM3 (RS232 communication parameters) Support Function: TCP to RS232 transparent transmission Interface Type: RS232, DB9 terminal male Baud Rate: 9600-115200 (default baud rate is 9600) Communication Format: 8-bit data, 1-bit stop, no parity (configurable) Ethernet Interface Parameters: Interface Form: RJ45 Communication Protocol: TCP; HTTP; Speed: 10Mbps; full duplex P TCP Parameters: Default IP: 192.168.1.15 Default Port: 502 Power Parameters: Power Consumption: 0.5W-2W Working Environment: Working Temperature: -20-70℃ Storage Temperature: -40-85℃ Installation Method: Rail 1 x RS232/485/422 to Ethernet Serial Device Server