2-port serial to Ethernet servers USR-N520 can realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.

● 2-port RS-232/422/485 serial to Ethernet servers
● Power supply accepts wide voltage input range DC 5-36V
● Support TCP server/client, UDP server/client, https client, Virtual COM
● Support Modbus RTU to Modbus TCP
● Support flow control CTS/RTS, XON/XOFF
● Support 2 RS-232, RS-485/422 3IN1 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility
TCP Server

Serial to Ethernet servers USR-N520 listens on the setting port
and waits for a TCP client connection.
The data which the serial ports sent out transparently
transmit to all connected TCP clients via USR-N520.
TCP client mode

Serial to Ethernet servers USR-N520 initiates a TCP connection to the set IP address.
If the connection fails, USR-N520 will keep trying to reconnect until it succeeds.
Once the connection is successful, the data will be transparently
transmitted between PC and serial device in bi-directional.
work mode of serial rs232 to ethernet converter/485 to ethernet/converter serial to ethernet USR-N520:TCP Client
UDP mode

Serial to Ethernet servers USR-N520 will transmit serial data from serial device to
target network device by UDP connection.
USR-N520 will listen to port and transmit all received data to serial device.
httpsD Client

Supports https Client mode which can transmit serial data to the https server in https format(GET/POST
Socket B function

Serial to Ethernet servers USR-N520 supports the secondary network link, which can send data to two servers.

Bus : RS-232, RS-485, RS-422, Ethernet, LAN, Modbus/TCP, Modbus RTU
Output bus : Ethernet, RJ45, DB9, Modbus
Other characteristics : industrial, 2 port, IoT