Apparatus for controlling a nacelle elevator from the nacelle, with digital optical transmission of the control signals to the servomechanisms

摘要

The apparatus comprises at least three hydraulic-action servomechanisms assigned to orienting and to lifting the arms of the nacelle carrying mast, and a control cabinet 35 situated in the nacelle 12. The cabinet sends out analog control signals. A transmitter 30 is associated with the cabinet 35 and is able to convert the control signals into digital signals with a servomechanism address. These signals are put into optical form by an interface 32 and addressed to a receiver means 40 via an optical fibre 20b. The receiver means restores the original control signals, echoes the digital signal received to the transmitter 30 via an optical link 20a, the transmitter 30 validating the digital signals whose echo is identical, and the receiver 40 addressing the reconstituted signals to the appropriate servomechanisms in response to the validation. IMAGE