The RTS-03 Adapter works with RT Systems Version 4 software and the original RT Systems serial cables for radio programming.
RTS-03 adapter forms an RS-232 comport that can be used by other applications. This USB to serial adapter forms a port that allows data to flow properly between decives without interference from its electronics.
Use it whenever the cable from the radio manufacturer comes with a DB-9 connection (packet cables, firmware upgrade cables, CAT cables, etc.).