Nova Patents
EP0969618A3

Optical two-fibre ring network

Abstract

The 2-fiber ring network with multiple terminals (T1 to T4) consists of two unidirectional data rings. The connection between two terminals (T1 and T3) takes place in undisturbed operation via one ring each. In the event of a line fault protection channels are provided, each having the same wavelength as the previous working channels.

EP0969618A3, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Projected expiry passed 8 June 2019, 7.3 years ago.

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1 sheet

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