ATM switching arrangement
AssigneeGPT Limited
InventorsRichard John Proctor, Mark Timothy Jeffrey, Thomas Slade Maddern
Life of this patent
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Abstract
An ATM telecommunications switch includes a plurality of parallel data switching planes and a parallel central plane, each plane having an equal number of input ports and output ports and a central switching unit to switch each input port to any output port. The switch further includes a first rotator to connect each input port cyclically to each timeslot of the central switching unit and a second rotator to connect each timeslot of the central switching unit cyclically to each output port.
Claims11
An asynchronous transfer mode (ATM) telecommunications switch for routing cells containing control information and data information, comprising:
- a plurality of parallel data switching planes and a single parallel control plane for controlling all of the data switching planes, said control plane having an equal number of input control ports and output control ports, each data switching plane including a central switching unit having an equal number of input data ports and output data ports, each central switching unit having a plurality of timeslots for switching each input data port to any output data port;
- input rotator means having a plurality of first rotator inputs and first rotator outputs, for cyclically connecting each first rotator input to route the data information to each input data port and to route the control information to each input control port in a predetermined timed sequence;
- and output rotator means having a plurality of second rotator inputs and second rotator outputs, for cyclically connecting the data information at each output data port and the control information at each output control port to each second rotator output in the same predetermined timed sequence.
Dependencies are inferred from the claim text.