If you are in N. America, the RC5200 uses 418MHz RF while X-10 uses 310MHz RF.

The only way to use it to control X-10 through walls is with an RF2RF converter...

     [Link: mbx-usa.com]

or by adding 310MHz RF to the RC5200...

     [Link: embed-x.com]

I have no idea whether the RC5200 board is similar to the TS1000 or TSU2000 boards.

If you live elsewhere, the RC5200 uses 433.92MHz which is also what X-10 uses. You can control it directly with the codes generated by CodeGen™...

     [Link: mbx-usa.com]