USR-N540-H7-4 4 Ports RS485 to Ethernet Converter Serial Device Server - Industrial Grade

USR-N540-H7-4  4 Ports RS485 to Ethernet Converter Serial Device Server - Industrial Grade

USR-N540 is 4-port serial to Ethernet converter. It adopts Cortex-M7 solution, which has a main frequency up to 400MHz, powerful performance, fast transmission speed, and high reliability. Equipped with a deeply optimized TCP/IP stack, built in hardware and software watchdog and a variety of keepalivemechanisms,USR-N540 keeps online all the time. It supports TCP Client, TCP Server, UDP Client, UDP Server and HTTPD Client working modes, achieves data transparent transmission via simple configuration.

The USR-N540 supports Modbus RTU Master for retrieving field site data from serial meters. After collecting data, users can convert serial data to MQTT json format data, allowing users to get field site data. This two-in-one design reduces system complexity and the amount of space required in the network topology, as well as overall installation time

Datasheet

Features

• Supports four serial ports working independently.
• Supports 5-36V wide voltage input, with reverse polarity protection.
• Supports Modbus RTU to Modbus TCP protocol conversion.
• Supports keepalive mechanism to quickly detect the dead connections and reconnect.
• Supports hardware watchdog, automatically restarts when the device goes down.
• Provides remote serial access over the Internet for industrial serial devices
• 10/100Mbps Ethernet port and support Auto MDI/MDIX
• Rugged metal housing with IP30 protection for wall or optional DIN-Rail mount
• Built-in 15KV ESD serial port protection
• Supports a wide industrial operating temperature,-40℃~85℃
• Flexible serial port data framing setting, which can satisfy user’s various demands for data packets segmentation
• Versatile operation modes: TCP Server, TCP Client, UDP, HTTP client, Web socket server.
• Support virtual COM ,COM Port Redirector USR-VCOM(windows).
• Firmware upgrading via Web Browser and Windows configuration tool.
• Easy-to-use Windows configuration tool for auto discovery, multiple device setting and monitoring.
• Choice of power input: AC-DC adapter(DC Jack) or DC direct(Terminal Block).
• High security via certificate verification SSL/TLS encryption for serial data transmission,HTTPS,TCPS,MQTTS.
• Support modbus RTU master,edge computing, modbus gateway,MQTT gateway.
• Cloud support: MQTT via AWS IOT, Things board, Alibaba Cloud, EMQX, Tuya,Cumulocity IoT and soon.

Specifications

• System Information
• Processor: ST Cortex-M7
• Basic Frequency: 400MHz
• Flash: 128K+4M 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,https,ARP,ICMP,Web socket,httpsd client
• Receive Buffer: Max 16k bytes buffer

• Serial
• Port Number 4 : RS485 Ports, can work at the same time)
• Interface Standard: RS-485: 2 wire (A+,B-) half-duplex
• Data Bits: 7,8
• Stop Bit: 1,2
• Parity Bit: Even,Odd
• Baud Rate: 600bps ~ 921600 bps
• Flow Control:  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
• Dimensions: 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 9 ~ 36V
• Working Current: 53mA @ 12V
• Power: <1W

Package Includes

• 1x USR-N540-H7-4  4 Ports RS485 Ethernet Device Server With Cables