This product is an equipment that transmits video channel between camera and monitor, unidirectional channel voice signal of MIC (PRE-AMP output), bidirectional control data channel between control keyboard and receiver box, and emergency call channel through optical cable 1 core.
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, voice, and telephone 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 part uses seven segment LEDs to check the video input and output voltage and the presence or absence of optical cable disconnection in real time.