Abstract: An optical communication equipment performs optical communication between a first apparatus and a second apparatus. The optical communication equipment includes a monitoring section configured to monitor a light amount during optical communication, and a control device configured to output predetermined information when the light amount is less than a first threshold value and shut off communication between the first and second apparatuses when the light amount is less than a second threshold value lower than the first threshold value.

Abstract: A technique capable of reducing wiring is provided. The mounting apparatus includes a display input device capable of displaying an image of multiple selection items for controlling the operation of the mounting apparatus and for inputting commands for selecting any selection item from the multiple displayed selection items, a control device, and a single cable connecting the display input device and the control device. When a command for selecting the selection item is inputted, the display input device transmits a command signal corresponding to the inputted command to the control device via the cable. In addition to transmitting a video signal for displaying the multiple selection items to the display input device via the cable, the control device updates the video signal based on the command signal received from the display input device and transmits the updated video signal to the display input device.

Abstract: A technique capable of reducing wiring is provided. The mounting apparatus includes a display input device capable of displaying an image of multiple selection items for controlling the operation of the mounting apparatus and for inputting commands for selecting any selection item from the multiple displayed selection items, a control device, and a single cable connecting the display input device and the control device. When a command for selecting the selection item is inputted, the display input device transmits a command signal corresponding to the inputted command to the control device via the cable. In addition to transmitting a video signal for displaying the multiple selection items to the display input device via the cable, the control device updates the video signal based on the command signal received from the display input device and transmits the updated video signal to the display input device.