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Feature

Support Httpd Client and Websocket
Support DHCP and DNS
Support Modbus RTU to Modbus TCP
Support TCP/UDP/Httpd/WEB to Serial

Description

Introduction
USR-N540,a four serial device server,can realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.
USR-N540, based on ARM processor,is of low power,rapid speed and high stability. And N540 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
Four ports can work independently at the same time
Serial baud rate from 600bps to 230.4K bps
DNS and DHCP supported
Built-in webpage;also can customize webpage for users
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
Support Modbus RTU to Modbus TCP
Support UDP broadcast function
Four serial ports;each serial can work as rs232,rs485 or rs422;DB9 female;provide rs485/rs422 converter
Four channel serial communication indicator: TX/RX
Support DC adapter and 5.08-2 terminal power supply
Reload button,one key to restore default settings
Parameter
Input Voltage: DC 9 ~ 24V
Working Current: 53mA @ 12V
Certificate: CE, FCC, ROHS
Size: 222 x 122 x 29 mm
Operating Temp.: -40 ~ 85C (industry)
Storage Temp.: -40 ~ 85C, 5 ~ 95% RH(no condensation)
Interface: Each port can work as RS-232,RS-485 and RS-422;can work at the same time
Network Protocol: IP, TCP, UDP, DHCP, DNS, HTTP, ARP,ICMP, Web socket, Httpd client