Fault tolerant optical apparatus comprising: - a transparent polymer film waveguide (OPF) for transmitting light signals in an omnidirectional manner, - a plurality of transceiver units (TU) each one comprising an optical transceiver interface (OT), a controller unit (CU) and a data interface (DT), said plurality of transceiver units being interconnected via the waveguide, in order to inject light signals to said waveguide and receive light signals from said waveguide, said plurality of transceiver units forming at least two isolated meshed networks, ∘ a dedicated wavelength being allocated to each meshed network, so that the transceiver units (TU) belonging to a meshed network only process light signals of the dedicated wavelength allocated to that network, - a plurality of electronic equipments (EQ), each one connected to and managed by a transceiver unit (TU), - the controller unit (UC) embedded in each transceiver unit (TU) is programmed with instructions enabling the management of the electronic equipment (EQ) connected to said transceiver unit, according to the light signals received by the optical transceiver interface (OT) embedded in said transceiver unit, - the controller unit (CU) embedded in each transceiver unit (TU) is also programmed with instructions: ∘ enabling the supervision of at least one more controller unit belonging to another transceiver unit being part of the same meshed network, ∘ enabling the management of the electronic equipment connected to said another transceiver unit, in the event of a failure of said at least one more controller unit. - a transparent polymer film waveguide (OPF) for transmitting light signals in an omnidirectional manner, - a plurality of transceiver units (TU) each one comprising an optical transceiver interface (OT), a controller unit (CU) and a data interface (DT), said plurality of transceiver units being interconnected via the waveguide, in order to inject light signals to said waveguide and receive light signals from said waveguide, said plurality of transceiver units forming at least two isolated meshed networks, ∘ a dedicated wavelength being allocated to each meshed network, so that the transceiver units (TU) belonging to a meshed network only process light signals of the dedicated wavelength allocated to that network, - a plurality of electronic equipments (EQ), each one connected to and managed by a transceiver unit (TU), - the controller unit (UC) embedded in each transceiver unit (TU) is programmed with instructions enabling the management of the electronic equipment (EQ) connected to said transceiver unit, according to the light signals received by the optical transceiver interface (OT) embedded in said transceiver unit, - the controller unit (CU) embedded in each transceiver unit (TU) is also programmed with instructions: ∘ enabling the supervision of at least one more controller unit belonging to another transceiver unit being part of the same meshed network, ∘ enabling the management of the electronic equipment connected to said another transceiver unit, in the event of a failure of said at least one more controller unit. ∘ enabling the supervision of at least one more controller unit belonging to another transceiver unit being part of the same meshed network, ∘ enabling the management of the electronic equipment connected to said another transceiver unit, in the event of a failure of said at least one more controller unit. <EOS>