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US 5,710,759 AGranted
Switch protection arrangement
AssigneeGPT Limited
InventorsGeoffrey Chopping, Andrew James Barker, David Paul Stoney
Life of this patent
Estimating the term…
Abstract
A telecommunication switch protection arrangement has information sent in the form of an information frame through a switch. The information in the frame is reorganized in the switch between input and output and checked for parity by using a V4 byte in the frame before being sent from the switch.
Claims8
A telecommunications switch protection arrangement including:
- a switch including switch paths;
- means for establishing a switched connection through the switch;
- a plurality of interface cards including an originating interface card, said cards including a capability of generating and monitoring multiple test data fields and reporting any detected discrepancies;
- the switched connection comprising a format that includes a test data byte reserved for transporting a multiplicity of different test data fields used to assist in a determination of whether the switch paths are routed and operating correctly;
- wherein the data fields comprise:
- a multiframe synchronization pattern;
- a plurality of parity check bits generated from data carried by said switched connection;
- a number of a shelf containing the originating interface card;
- a number of a card position containing the originating interface card;
- a type number of the originating interface card;
- and a channel number used by the switched connection to enter the switch.
8 more elements
A telecommunications switch protection arrangement including:
- a switch including switch paths;
- means for establishing a switched connection through the switch;
- a plurality of interface cards including an originating interface and, said cards including a capability of generating and monitoring multiple test data fields and reporting any detected discrepancies;
- the switched connection comprising a format that includes a test data byte reserved for transporting a multiplicity of different test data fields used to assist in a determination of whether the switch paths are routed and operating correctly;
- wherein the data fields comprise data which is characteristic of the originating interface card and of a channel used by the switched connection to enter the switch.
2 more elements
Dependencies are inferred from the claim text.