OK guys, although the MSC-400 is still in stock at some distributors it is officially discontinued.
Apparently the replacement are the MRX-1/MRX-2, but here is the catch. If you are using an RF remote connecting a RFX-250 you loose te RS-232 ports, relay and sensor ports, so this is not really a replacemnt in my book.
What is the solution?

Sadly,there isn't a solution other than going with Total Control.

That is what I though, but I wanted a confirmation.

Look into using the MRX-8 Controller. You don't really have to have the MRX-10 or 20 unless you plan on controlling a lot of 2 way driver stuff. It has (2) ports for 232.

It's priced decent.

That is for Total Control not CCP

I still have one new in a box, never opened. Happy to sell and ship at a good price if you need one.