Introduction

USR-N520 is a double serial device server,which can realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.The device has unique functions such as network printing,Modbus multi-host polling and watchdog mechanism. USR-N520 is based on ARM processor and it is internally integrated with TCP/IP protocol.User can easily realize embedded device networking.

Features
Cortex-M4 kernel,industrial working temperature range and TCPIP protocol stack.
Auto-MDI/MDIX,RJ45 port with 10/100Mbps
TCP Server,TCP Client,UDP Client,UDP Server and HTTPD Client work mode
Support network printing
Support Modbus multi-host polling
Two ports can work independently at the same time
Support Modbus RTU to Modbus TCP
Can distinguish which serial port connects to the device via port number
Support virtual serial port and provide corresponding software USR-VCOM
Serial baud rate from 600bps to 230.4K bps;Check bit of None,Odd,Even,Mark and Space
DNS and DHCP supported
Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS
Built-in webpage;also can customize webpage for users
Reload button,one key to restore default settings
RJ45 with Link/Data indicator light,built-in isolation transformer and 2 KV electromagnetic isolation
The global unique MAC address bought from IEEE (begin with D8-B0-4C);user can define MAC address
Support upgrade firmware via network
Support keepalive,rapidly detect dead links
Support account and password,can be used to page login and network settings
Support one channel Websocket,realize bidirectional transparent transmission between webpage and serial 0
Two serial ports;each serial can work as rs232,rs485 or rs422;DB9 female;provide rs485/rs422 converter
Two channel serial communication indicator: TX/RX
Support DC adapter and 5.08-2 terminal power supply
Support UDP broadcast function

Parameter

Input Voltage : DC 5 ~ 36V
Operating Temp. : -40 ~ 85°C
Storage Temp.: -45 ~ 105°C, 5 ~ 95% RH
Network Protocol : IP, TCP, UDP, DHCP, DNS, HTTP, ARP,ICMP, Web socket, Httpd client