You can definitely read rs422, but not sure if that deck supports HDV recording via rs422. The Kona is capable of rs422 record deck control though, it just depends on the deck to have the functionality. For example, the 1200 model DVCPro HD deck does not support insert/assemble editing.
Actually a quick search shows you can insert/assemble in DVCam mode, but not in HDV mode.
http://tinyurl.com/yre944
Jeremy