公开(公告)号：US20230013125A1

公开(公告)日：2023-01-19

申请号：US17779513

申请日：2020-12-03

Applicant: LATELEC

Inventor： Diarra TALL ,  Yoann REBIERE

IPC: H04B10/032 ,  H04B10/079

Abstract: A passive optical communication network includes two optical line terminals configured respectively to receive a communication signal from information systems and at least two optical network units configured to receive the communication signal. At least two optical switches, one part of which is connected at input to a first terminal via a primary nominal operating path and to the second terminal via a secondary path, and the other part of which is connected at input to a second terminal via a primary nominal operating path and to the first terminal via a secondary path. Each switch being connected at output to at least one optical network unit. A command controller connected to the switches and configured to control the switches such that, when a fault is detected on a primary path, the switch associated with the path is toggled.