4 Ports Serial RS232/RS485/RS422 to Ethernet Converter USR-N540

4 Ports Serial RS232/RS485/RS422 to Ethernet Converter USR-N540

USR-N540, 4 serial port Ethernet converter which can realise transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.

Note: This kit includes the AU power adapter, DB9 cable, and connectors.

Characters of USR-N540 Serial Ethernet Converter

Features of 4 ports Serial Ethernet Converter

• TI 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
• 4 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 web page; also can customise web page 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, realise bidirectional transparent transmission between web page and serial 0
• Support Modbus RTU to Modbus TCP
• Support UDP broadcast function
• Each serial can work as rs232,rs485 or rs422; Default port is RS232 BD9 male port
• Four channel serial communication indicator: TX/RX, CTS/RTS, XON/XOFF
• 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

Specifications:

System Information
Processor Cortex-M4
Basic Frequency 120MHz
Flash 512K byte

Ethernet
Port Number 1
Interface Standard 8 pin RJ45
Rate 10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection
Protection 2KV electromagnetism isolation, shell insulation blocking
Network Protocol IP,TCP,UDP,DHCP,DNS,HTTP,ARP,ICMP,Web socket,Httpd client
Receive Buffer Max 16k bytes buffer

Serial
Port Number 4 (Each port can work as RS-232, RS-485 and RS-422, can work at the same time)
Interface Standard RS-232: DB9 pin type, RS-485: 2 wire (A+,B-), RS-422 (A,B,Y,Z)
Data Bits 5,6,7,8
Stop Bit 1,2
Check Bit None, Even, Odd, Space, Mark
Baud Rate 600bps ~ 230.4Kbps
Flow Control RTS/CTS XON XOFF
Buffer Send and receive 2k bytes respectively
Protection RS-485: anti-static 2KV,lightning protection
RS-485 Pull-up and Pull-Down Resistor 2.2 KΩ

Software
Virtual Serial（USR-VCOM） Windows 2000 or higher(32 bit/64 bit)
Configuration Built-in webpage, computer set-up software, serial command

Basic Parameter
Size 222 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 Voltage DC 5 ~ 36V
Working Current 53mA @ 12V
Power <1W

Download Link

User Manual

[User Manual] USR-N540 Quick Start Guide | download
[Datasheet] USR-N540 Datasheet | download
[User Manual] USR-N540 User Manual | download
[AT Command] USR-N540 AT Command Set | download

Development File

[Customized Webpage] USR-N540 Customized Webpage | download
[Demo Code] TCPIP Demo Code | download
[Config Protocol] E45&M4 Series Config Protocol V1.4 | download

Application Software

[USR-VCOM] Virtual Serial Software V3.7.1.520 | download
[USR-TCP-Test] Testing Software | download
[USR-TCP-Test_android] Testing Software | download
[USR-M4] USR-TCP232-M4K3 Setup Software V2.3.3.97 | download

Product Certificates

[Certificate] M4 Series CE FCC ROHS WEEE Certificate | download