Product Classification
Data download
Support Center
Hardware Test of 8-port Serial to Ethernet Converter USR-N668

1. Hardware Preparation

You need:
1. serial device server USR-N668 for one;
2. Pow er cord (85V~265V)for one;
3. Female to female serial cable for one;
4. DB9 M to RJ45 for one;
5. Network line for two;
6. PC(with RS232,or USB to 232)
2. Hardware Connection
For test the communication conversion between serial port and network , you should connect the USR-N668 to PC with serial cable(or USB to serial cable),connect the Ethernet port of USR N668 and PC with network.
Make sure the connection is correct , then power ALL the c onnecting line s form USR IOT; The test only for RS232, f actory default setting for RS232;
Check the d ial up settings window ,make sure USR N668 work at c orrect pattern .(See the details in Hardware introduce -->Dial up)
RS232/485/422 smart switch
N668 serial port 1 -->network -->DB9 M to RJ45 -->mother to mother serial cable -->PC s erial port
serial port connection between N668 and PC
serial port connection between N668 and PC
The above is the hardware connection diagram of RS232 for t ransparent transmission. when use RS485/RS422,you can connect the corresponding signal line. line.(see the details in Hardware introduce
Serial port pin definition
Note: the standard configuration of DB9 M to RJ45 is only one, if you need more, you need separate purchase
The overall hardware connection and data flow are as follows
The overall hardware connection and data flow


Don't hesitate to contact PUSR.
Reliable products and services around you!
Subscribe Email
Ethernet Modules
WiFi Modules
4G Modules
Bluetooth Module
Contact Us
Email :
Tel : +86-531-88826739
Fax : +86-531-88826739-808
Address : Floor 12 and 13, CEIBS
of Maolingshan, Lixia District, Jinan,
Shandong, China
Copyright © Jinan USR IOT Technology Limited All Rights Reserved. Tags   /  Sitemap   /  Privacy Policy