This product is a device that transmits MIC (PRE-AMP output), MAIN-AMP input, and Contacts System unidirectional (Normal Close, Normal Open) data channel on one core of fiber optic cable, and it is a high-quality optical transmission equipment that utilizes the optical characteristics of optical communication, so it can be fully protected from long-distance wireless transmission and ambient noise.
The presence or absence of data signals can be checked in real time by displaying green LEDs on the transmitting and receiving parts.