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US 5,309,123 AGranted
Device for connecting a data communication network to a plurality of subscribers
AssigneeCegelec
InventorClaude Gelin
Life of this patent
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AssigneeCegelec
InventorClaude Gelin
Estimating the term…
A data communication field network has a plurality of subscribers connected to it in parallel which have a high input impedance as compared with the characteristic impedance of the network which comprises a main bus into which are inserted first drop and insert devices to constitute secondary buses each comprising two first branches. The connecting device comprises a cable assembly comprising at least two second drop and insert devices inserted into one of the first branches. Each second drop and insert device provides a tertiary bus comprising two second branches. Each tertiary bus is adapted to connect one subscriber and the second branches of the tertiary bus are interconnected at the subscriber connection so as to ensure continuity of the field network and to maintain impedance matching throughout the network.
A device for connecting a data communication field network to a plurality of subscribers in parallel, each subscriber having a high input impedance as compared with the characteristic impedance of said network, said network comprising a main bus into which are inserted first drop and insert devices to constitute secondary buses each comprising two first branches, said connecting device comprising:
An FIP type field network comprising a main bus interrupted by first drop and insert devices to constitute secondary buses each comprising two first branches, the network further comprising:
Dependencies are inferred from the claim text.