Patent ID: 6034798
Filing Date: 2000-03-07
Classification: H04B,H04J,H04L

Abstract:
Optical network comprising:lower-order loops connected to each other via at least one higher-order loop, the lower-order loops each having at least one bus network possessing at least two hubs and at least one node, the at least two hubs being connected to one another via two optical fibres for transmitting signals in opposite directions, the hubs being configured to convert and concentrate received signals into a form which is suitable for transmission in the higher-order loop or in one of the lower-order loops,a first hub of the two hubs being disposed at a first end of the bus network and closing the first end of the bus network, a second hub of the two hubs being disposed at a second end of the bus network and closing the second end of the bus network,the node being configured to transmit to the first huh of the two hubs via a first optical fibre of the two optical fibres, andthe node being configured to transmit to the second hub of the two hubs via a second optical fibre of the two optical fibres.