USR-N668 User Manual Technical Support:
Jinan USR IOT Technology Limited
www.usriot.com
6
The test only for RS232, factory default setting for RS232;
Check the dial up settings window ,make sure USR-N668 work at correct pattern.(See the details in
Hardware introduce->Dial up)
Figure 1. RS232/485/422 smart switch
N668 serial port 1->network->DB9-M to RJ45->mother to mother serial cable->PC serial port
Figure 2. serial port connection between N668 and PC
The above is the hardware connection diagram of RS232 for transparent transmission. when use
RS485/RS422,you can connect the corresponding signal line.(see the details in Hardware introduce->
Serial port pin definition )
Note: the standard configuration of DB9-M to RJ 45 is only one, if you need more, you need separate
