Koppelinrichting voor het koppelen van optische verbindingen.

摘要

In a ring-shaped optical distributive network, provided with a central node and a number (N) of network nodes, distribution signals DS are transmitted in two signal transport directions (F, B) by the central node. For the execution of a drop-and-continue function (DC function), each network node comprises a coupling arrangement (21) provided with an optical 2x2 switch (28) and a tapping device (33). The switch and the tapping device are mutually coupled in such a way that the DC function can be carried out in a switchable manner in only one of both signal transport directions simultaneously. The switch (28) is turned over when distribution signals from a signal transport direction in a related network node are no longer received. Such a network is self-healing for a single network failure.