
It would be better not install the software on Disk C.


1, Install USB Cable Driver: 
Double click "USB Driver Installer.exe", setup following the installation steps tips.

2, Install JT270MH program software:
Double click "JT270MH", setup following the installation steps. It would be better install the software except Disk C.

3, Once the software installed successful, click start menu on computer, under "ALL PROGRAMS" menu, choose "JT270MH" in "JET" program, the JT270MH software opend.

4, Once the software opend, click COM icon on the software, remenber the current com port and then close. Connect the USB cable to computer, click COM icon again, find out the new port and check it, then close. Now power on the JT270MH transceiver, connect the transceiver to RJ connect of the USB cable, you can read datas from the transceiver, or write datas to transceiver.