8 Ports RS232/RS485/RS422 Serial to Ethernet Converters

USR-N668 is an 8 Serial Ports Industrial RS232 RS485 RS422 to Ethernet Converter

  • Power: AC 85-AC 265
  • Modbus RTU to Modbus TCP, Modbus Polling
  • Web server, SSL Client

Work mode

TCP Server
Serial server device USR-N668 listens on the setting port and waits for a TCP client connection. The data which the serial ports sent out transparently transmit to all connected client via serial device USR-N668.

TCP client mode
The serial converter N668 initiates a TCP lint to the set IP address. If the connection fails, N668 will keep trying to reconnect until it succeeds. Once the link is successful, the data will be transparently transmitted between PC and serial device in bi-directional.

UDP mode
Serial server device USR-N668 sent the data to designated IP /Port. If the connection fails, USR-N668 will keep trying to reconnect until it succeeds. Meanwhile, USR-N668 listens the port and forwards all data received to serial device.

HTTPD Client
Support serial data transmitted to designed server in HTTPD way

HardwareWork VoltageAC 85~265 V,50/60Hz
Power Consumption1.6W
Number of Ethernet Port2
Serial Port FormatRJ45
Number of Serial Port8 Ports
Baud Rate300-115.2K(bps)
SoftwareNetwork ProtocolIP、TCP/UDP、ARP、ICMP、IPV4、HTTP
DNSSupports user defined
ConfigurationSoftware, Webpage, AT command
Transparent transmissionTCP Server/TCP Client/UDP Server/UDP Client/ Httpd Client
Class RFC2217Support
Network Cache10Kbyte
Serial port Cache10Kbyte
Average transmission delay>=50ms
SoftwareVCOM、Setup Software, Test program
Packaging mechanism50ms packing time, 1472 bytes packing length
Reliability gradeEN61000-4-2(static electricity) Grade 4
EN61000-4-4(pulse group) Grade 4
EN61000-4-5(surge) Grade 3
Shell ProtectionIP30
Size482*185*45 MM
Work Temp-40~85℃
Storage Temp-40~105℃
Work Humidity5%~95% RH
Storage Temp5%~95% RH

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