Not only TW90, nut also WD90 cable boxes can be installed in light partition walls. When a single WD90 cable box is installed in a light partition wall it has to be stabilised with a frame made of galvanised sheet steel.

In doing so, it cannot loosen from the wall during configuration. Cable boxes installed in light partition walls saliently on the floor do not need such frames, either EasyFoam cable boxes.

The frames are delivered in sets mounting pieces and screws. They are applied on both sides of the wall as shown by the picture above.