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USR-N668 8-CH RS232/422/485 Serial Device Server - Industrial Grade - Support Multi Protocol TCP Server, TCP Client, UDP, HTTPD
The USR-N668 is an industrial-grade 8-channel serial device server designed to connect RS232, RS422, and RS485 serial devices to Ethernet networks. Featuring dual 10/100Mbps Ethernet ports, ARM9 processing, hardware watchdog protection, and support for multiple communication protocols, it enables reliable remote monitoring, data acquisition, and industrial automation applications. The rack-mount 1U design makes it ideal for factories, SCADA systems, Modbus networks, PLC communication, and IoT deployments requiring stable serial-to-Ethernet connectivity. It supports TCP Server, TCP Client, UDP, Virtual COM, HTTPD Client, and Modbus RTU to Modbus TCP conversion for seamless integration into industrial networks.
Features
- 8 software-configurable RS232/RS422/RS485 serial ports
- Dual 10/100Mbps Ethernet interfaces
- Supports TCP Server, TCP Client, UDP Server/Client, HTTPD Client
- Modbus RTU to Modbus TCP protocol conversion
- ARM9 processor with 64MB RAM and 16MB Flash
- Industrial-grade design with hardware watchdog
- Wide input voltage range: AC 85–265V
- Web-based, AT command, and software configuration
- Virtual COM port support (RFC2217 compatible)
- Remote monitoring and firmware upgrade support
- Built-in RTC and NTP time synchronization
- ESD and surge protection for industrial environments
- Rack-mount 1U enclosure for control cabinets and server racks
Specifications
- Hardware
- Work Voltage: AC 85~265 V，50/60Hz
- Power Consumption: 1.6W
- Ethernet: RJ45、10/100Mbps
- Number of Ethernet Port: 2
- Serial Port Format: RJ45
- Number of Serial Port: 8 Ports
- Baud Rate: 300-115.2K（bps）
- Software
- Network Protocol: IP、TCP/UDP、ARP、ICMP、IPV4、https
- IP: Static IP、DHCP
- DNS: Supports user defined
- Configuration: Software, Webpage, AT command
- Transparent transmission: TCP Server/TCP Client/UDP Server/UDP Client/ httpsd Client
- Class RFC2217: Support
- Network Cache: 10Kbyte
- Serial port Cache: 10Kbyte
- Average transmission delay: >=50ms
- Software: VCOM、Setup Software, Test program
- Packaging mechanism: 50ms packing time, 1472 bytes packing length
- Others
- Shell Protection: IP30
- Size: 482*185*45 MM
- Work Temp: -40～85℃
- Storage Temp: -40～105℃
- Work Humidity: 5%～95% RH
- Storage Temp: 5%～95% RH
- Certificate: CE/RoHs
Package Includes
- 1x USR-N668 8-CH RS232/422/485 Serial Device Server - Industrial Grade - Support Multi Protocol TCP Server, TCP Client, UDP, HTTPD
