I just installed the KIO2 serial port in my K2. When I ordered the KIO2, I also ordered a KUSB USB-to-serial adapter cable. Is it safe to plug the KUSB cable directly into the KIO2 port, or do I need to connect it via the DB9-DB9 serial cable to ensure that only pins 2/3/5 are connected between the KIO2 and the KUSB? 73, Matt VK2RQ