So |Turbine Casing<|Wireless Transmitter cover| |Maintenance cover|>Turbine controller| should work?
Hmmmm....
The turbine casing is not a hatch, so you can't place a cover on it. But the maintainance cover is special and emits a RS signal on two opposing sides of the controller. So when you place a maintainance cover on for example the left side of an turbine controller, you can place a RS transmitter (in) on the right side and the signal is send correctly.