Upon trying to program by DTMF, it became apparent that I needed to use the windows software. I am very cautious and use a multimeter to check for shorts and traces as I solder to avoid issues when complete. The instructions were pretty clear (I could pick around at a few things) and I managed to get all the components installed in about 6 hours solder time. Probably good for other repeaters but unless you want to neuter your DR-2X dont waste your money like I did. Unfortunately I have to say I can not recommend this controller for many DR2-X users as you lose you ability to use it in the Wires mode. This was not stated at all in their website and a phone call to the owner did not resolve the situation. When you have the repeater sitting in it's normal mode it will control it in both FM/C4FM but if you have an HRI-200 interface connected it will not control the repeater unless it is not in with Wires enabled state. Mind you - this was not connected to a node or even to Wires-X itself but just sitting in mixed mode waiting for a signal. Upon installation I was surprised to see the repeater would not key when it was receiving FM in the Wires-X mode. They advertised that it would work in digital with the appropriate interface which I also purchased. I purchased this controller with the hopes of using it with my Yaesu DR2-X repeater.

Arcom rc210 programming manual