Network expert of industrial IOT
inquiry@usriot.com
PUSR Cloud Official Website
PUSR Cloud Official Website
Leave Message

*

*

*

*

Home / Products / Industrial Serial to Ethernet Converters [MQTT/SSL] / 4 Ports RS485 Ethernet Modbus Gateway[MQTT/SSL]
Home / Products/ Industrial Serial to Ethernet Converters [MQTT/SSL] / 4 Ports RS485 Ethernet Modbus Gateway[MQTT/SSL]
N540.jpg
  • N540.jpg
  • 1000x1000-1.jpg
  • 1000x1000-4.jpg
  • 1000x1000-3.jpg

USR-N540

USR-N540

4 Ports RS485 Ethernet Modbus Gateway[MQTT/SSL]

4 Ports RS485 Ethernet Modbus Gateway[MQTT/SSL]


USR-N540 is 4 serial Ports Secure Serial Device Server which can connect RS485 serial devices to the TCP/IP network. It supports bi-directional communication.

● Independent 4 RS485 ports. (3-in-1 Serial port RS232/RS485/RS422 Optional)
● 5-36V wide voltage input.
● Modbus RTU to Modbus TCP, Modbus Polling, Modbus to JSON
● Flow control XON/XOFF
● Secure Client Operation Mode: TCPS, HTTPS. MQTTS
● SSL/TLS Encryption
● Modbus RTU Master, Edge computing
● Hardware watchdog, automatically restarts when the device goes down.

4-port RS485 Serial Device Server

Model name

Description

USR-N510

1 RS232/485/422 to Ethernet device server

USR-N510-4

1 RS485 to Ethernet device server

USR-N520

2 RS232/485/422 to Ethernet device server

USR-N520-6

2 RS232/485 to Ethernet device server

USR-N540

4 RS232/485/422 to Ethernet device server

USR-N540-4

4 RS485 to Ethernet device server

USR-N580

8 RS485 to Ethernet device server

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
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 9 ~ 36V
Working Current 53mA @ 12V
Power <1W
More
Certificate CE,FCC,ROHS
Warranty 2 years

Related Products

Request a Quote

Request a quote get more products/services/promotions.We will reply to you in a business day.
(Your email address will not be shared with a third party.)