Device for reducing the energy consumption of circuits for transmitting towards subscribers, with bidirectional wavelength multiplex

摘要

Device for reducing the consumption of transmission circuits in integrated services urban networks with fibre optic transmission paths. The components of the transmission circuits are in a standby condition, in which only those components required for switching into the normal service condition can operate. This switching is performed by a logic signal "into", which connects a parallel-series converter 2 to the service voltages. The data stream D is accompanied by a bit frequency BT which switches in the electro-optic converter 3 on transmission, and then the series-parallel converter 5 on reception. The circuit is thus established. The suppression of the logic signal "into" in the S/C circuit 6 returns the transmission circuit to the standby condition after performing the service. IMAGE