This product is an equipment that transmits 8 video channels between camera and monitor and bidirectional control data channels between control keyboard and receiver box using 1 core of optical cable.
It is a WDM (Wavelength Division Multiplexing) method that utilizes optical characteristics to transmit long-distance wirelessly and is not affected by electric and magnetic fields.
LEDs for data input and output indication are attached to the transmitting and receiving parts, so you can visually check the data communication status without separate equipment, and the video transmitting and receiving parts use seven-segment LEDs to check the video input and output voltage and optical cable disconnection in real time.