| 摘要 |
The invention provides a method for the establishment and introduction of an optical network according to which private subscribers can be connected in such a way that for this category the network behaves like a network with a tree structure, whereas business subscribers can be connected in such a way that the network acts - dependent on the way it has been connected - as a star-shaped or a ring-shaped network capable of being routed in a single or in a double way. Thus, according to the invention a method is provided for connecting subscribers to signal processing means in a network centre via a system of optical fibre cables, which method is characterised &squf& in that one or more cable loops comprising one or more optical fibre cables each consisting of one or more optical fibres will be formed between groups of subscribers and the network centre, the ends of which cable loops debouch into said network centre and into each of which cable loops one or more subscriber centres for connecting subscribers to a fibre cable, forming part of that cable loop, will be incorporated, &squf& in that for the connection of a subscriber to said signal processing means, at least one of the optical fibres in the relevant subscriber centre will be interrupted, and at least one of the fibre ends thus formed will be connected either to only that subscriber, or to that subscriber and other subscribers, whereas the other end of a fibre thus connected to one or more subscribers in the subscriber centre will be connected to said signal processing means in the network centre. The invention is based on the insight that if the fibre cables will be laid in loops and subscriber centres will be incorporated into these loops - at a relatively short distance from groups of subscribers - an optical fibre, which is thus led at rather a short distance along the relevant groups of subscribers, can always be connected to a subscriber in such a way as corresponds to the network structure desired for and by that subscriber.
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