Patent ID: 9002205
Filing Date: 2015-04-07
Classification: H04J,H04Q

Abstract:
1. System for connecting a plurality of digital subscribers to a data network offering xDSL service, where digital subscribers send analogue upstream signals to the data network and the data network sends digital downstream signals to the digital subscribers, comprising a local part, located at a central office, connected by an optical fiber link to a remote part, located at an intermediate place between the central office and the digital subscribers, and said local part further comprising a plurality of digital subscriber line access multiplexer line cards with xDSL over fiber transceiver ( 2 b ), each digital subscriber line access multiplexer line cards with xDSL over fiber transceiver comprising: a plurality of xDSL lines comprising: an adder circuit ( an optical upconverter ( an optical downconverter ( a wavelength division multiplexer (