Telephone Optical Video Multiplexer through fiber long-distance transmission phone with optical transmission equipment. The device uses a VLSI design, appearance and concise, with easy installation and commissioning, maintenance-free, stable performance, etc., applicable to major telecommunications operators, government and enterprises. 1-128 can be directly transmitted through the cable-way or more to128 Tel solve the edge of the customer's phone transmission problems. Powerful dedicated digital multiplexing function of the apparatus used in the chip, the device will function in almost all integrated digital logic, and thus significantly improve product performance and reduce costs.