4 ports Serial Device Servers, Serial RS232/RS485/RS422 to Ethernet Converter

USR-N540,a four serial device server,can realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.

  • 4 serial port: RS-232/422/485 switch selectable
  • Low Voltage range of 9-24v DC
  • Data Rates range of 600~230.4kbps
General Details

Introduction of 4 ports Serial Device Servers

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.

Feature of 4 ports Serial Device Servers

  • 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
  • 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
  • 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
  • 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
  • RJ45 with Link/Data indicator light,built-in isolation transformer and 2 KV electromagnetic isolation

Application Field of 4 ports Serial Device Servers

  • Industrial data transmission, industrial automation
  • security and protection monitoring, public security
  • Smart home, power control, environmental monitoring, intelligent agriculture
  • Door check on work attendance system, POS system, rice selling system
  • Building automation system, power monitoring, self-service banking system, telecom machine room monitoring

Application of 4 ports Serial Device Servers

N540 application_

Simple Transparent transmission

Transparent transmission means that whatever is transferred, our device plays the role of a channel and sends data to the target without modification. On-site monitoring equipment sends data to Serial Device Servers transparent data transmission terminal by itself port, the terminal CUP receives data by serial port and package data.

Various parameter setting method

Software Settings
Download settings software, search related Serial Device Servers in the LAN through the serial port server IP, name, MAC address, or the version number. Then set the parameters you need, otherwise keep the default.
Web-page Settings

  1. Open your browser and inter the default IP address of the Serial Device Servers.
  2. Open the login page of Serial Server, Enter the user name and password (default admin).
  3. After setting parameter, Click Save and Restart, then setting will take effect.

Serial AT commands Settings
User can set parameter by module itself without going through another computer to configure. This setting method is used in the following situation: user have to configure IP address and destination IP address on site. AT command can meet the demand. After MCU connects serial server module by TTL (UART), MCU can configure setting by AT command.

Images of 4 ports Serial Device Servers
4 ports Serial Device Servers

Parameter
System Information
ProcessorCortex-M4
Basic Frequency120MHz
Flash512K byte
Ethernet
Port Number1
Interface Standard8 pin RJ45
Rate10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection
Protection2KV electromagnetism isolation, shell insulation blocking
Network ProtocolIP,TCP,UDP,DHCP,DNS,HTTP,ARP,ICMP,Web socket,Httpd client
Receive BufferMax 16k bytes buffer
Serial
Port Number4 (Each port can work as RS-232,RS-485 and RS-422, can work at the same time)
Interface StandardRS-232: DB9 pin type, RS-485: 2 wire (A+,B-), RS-422 (A,B,Y,Z)
Data Bits5,6,7,8
Stop Bit1,2
Check BitNone,Even,Odd,Space,Mark
Baud Rate600bps ~ 230.4Kbps
Flow ControlRTS/CTS
BufferSend and receive 2k bytes respectively
ProtectionRS-485: anti-static 2KV,lightning protection
RS-485 Pull-up and Pull-Down Resistor2.2 KΩ
Software
Virtual Serial(USR-VCOM)Windows 2000 or higher(32 bit/64 bit)
ConfigurationBuilt-in webpage, computer set-up software, serial command
Basic Parameter
Size222 x 122 x 29 mm (including shell and terminals)
Operating Temp.-40 ~ 85°C (industry)
Storage Temp.-40 ~ 85°C, 5 ~ 95% RH (no condensation)
Input VoltageDC 9 ~ 24V
Working Current53mA @ 12V
Power<1W
More
CertificateCE,FCC,ROHS
Warranty2 years
Order

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