To reduce power consumption, reduce manufacturing costs and increase the transmission efficiency, and transmission network having an optical receiver using a status pin and one feed pin of the two

摘要

To provide a communications network that interconnects a network of digital systems of multimedia devices and the like. Each node in the network communication, receiver and transmitter are included. The receiver and transmitter of each node may be an optical transmitter and optical receiver. Optical receiver is powered by the power supply pins of the two supply feed different amounts, preferably. Feeding amount of the first power is supplied to the activity detector in the receiver, feeding a second amount greater than the amount of power supplied first is supplied to the signal path of the light receiver. Feeding amount of the first is always supplied, the feed amount of the second is supplied only when activity is detected. Be implemented on the same integrated circuit as the network interface, the voltage regulator supplying the feed amount of the first, to reduce the manufacturing cost of the network. By feeding the activity detector separately from the signal path, it is assumed changeable power for increasing the life of the optical transmitter and optical receiver with reduced power consumption (normal) operating condition.