A fiber optics switch has a retro-reflector mirror assembly which reflects a light beam received from an input fiber in an anti-parallel, displaced manner, into one of a plurality of output fibers. Plate includes a vent opening that communicates with vent ducting with the wall. The insulation regions of the first type are etched grooves which are filled with insulating material through deposition. The data system provides graphics data to the display controller. The elongated seal member is attached onto the support portion in a state where both ends thereof overlap the side seal member and are opposite the side seal attachment surface. When the QR code that has been displayed has been inputted with an identification code input portion to allow an operation portion to assign operation for the electronic apparatus, an operation portion transmits operation information that indicates the operation that has been assigned and the identification code to which the QR code that has been inputted has been decoded.