Computer interface cable Yaesu VR-120
 

Hello,

Does anybody have a schematic of a interface cable to connect a Yaesu
VR-120 to a PC?
For Icom there exists the OPC-478 cable. I've read that it can be used
to download data
from the VR120 to a PC, but uploading seems to be not possible.
For this OPC-478 cable are schematics availablle on the web.

I've seen some circuit with 2 transistors, but I was wondering if
there is a schematic with
a MAX232 which works for download and upload for the VR-120 as well.

Thanks for your help,
/Marc