A communication switch

Patent

A communication switch

- 19 Jun 1996

25

TL;DR: In this article, a communication switch is defined as a matrix of switch modules interconnected to allow switching between multiple inputs and multiple outputs, characterised in that said switch modules are distributed between multiple input/output port cards (CD) so that each card incorporates one or more switch modules (SW) with multiple outputs (T1-T4) connected to respective output ports (OUT) of the card and multiple inputs (N1-N8) connected with respective transfer terminals (TR1-TR8), and a selector (SL) being incorporated in each card (CL)

Abstract: A communication switch comprises a matrix of switch modules interconnected to allow switching between multiple inputs and multiple outputs, characterised in that said switch modules are distributed between multiple input/output port cards (CD) so that each card incorporates one or more switch modules (SW) with multiple outputs (T1-T4) connected to respective output ports (OUT) of the card and multiple inputs (N1-N8) connected to respective transfer terminals (TR1-TR8) of the card, the inputs (N1-N8) of the switch modules (SW) of all the cards (CD) being interconnected via a set of buses (B1-B8) connected to said transfer terminals (TR1-TR8), and a selector (SL) being incorporated in each card (CD) which is setable to connect each of one or more respective input ports (IN) of the card (CD) to a selected input (N1-N8) of said switch modules (SW) on the same card so that each input port (IN) of the switch is uniquely connected via a respective selector (SL) to a respective input (N1-N8) of a switch module (SW) and to a respective bus (B1-B8).

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Citations

Patent

Fused switch core and method for a telecommunications node

Barry W. Field, +7 more

- 01 Dec 1999

TL;DR: In this article, a traffic converter is used to convert traffic channels retrieved from the shared memory to traffic cells for processing by a bus fuser and then convert traffic cells to traffic channels for storage in a shared memory through the traffic converter, the ATM switch and a second bus.

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59

Patent

Asynchronous transfer mode (ATM) switch and method for switching ATM traffic

Earl B. Manchester, +3 more

- 19 Nov 2004

Abstract: An asynchronous transfer mode (ATM) switch includes a switch memory having a plurality of discrete queues. A queue is dedicated to a connection in which a traffic stream is transmitted in cells and an inverse multiplex ATM (IMA) format. A switch controller is operable to receive a plurality of cells, to identify cells for the connection, to queue cells for the connection in the queue based on order information received with the cells, to reconstitute from the queue the traffic stream, and to switch the traffic stream and the ATM cells.

...read moreread less

39

Patent

Time slot interchanger (TSI) and method for a telecommunications node

Kenneth M. Buckland, +1 more

- 01 Dec 1999

TL;DR: In this paper, a time slot interchanger (TSI) for a telecommunications node includes an exchange memory and a controller, and the controller is operable in response to predefined switching instructions to write a sub-channel received in a first traffic channel to a first field in a memory slot and to write an intermediate field to another field in the memory slot.

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24

Patent

Network interface device for accessing data stored in buffer memory locations defined by programmable read pointer information

Po-Shen Lai, +1 more

- 27 May 1999

TL;DR: A network interface device includes a random access memory used as a transmit and receive buffer for transmission and reception of data between a host computer bus and a packet-switched network.

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19

Patent

Method and apparatus for switching signals of multiple different communication protocols

David X. Chen, +4 more

- 01 Jun 2000

TL;DR: In this article, a switching circuit is coupled to a plurality of universal connectors (71-74), each of which can each removably receive any one of several types of switching circuit cards (101-104), which each utilize a respective one of the different communication protocols.

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References

Patent

Switch composed of identical switch modules

Birney D. Dayton

- 21 Jan 1993

TL;DR: In this paper, a crosspoint switch having M input terminals and N output terminals has (M/m) times (N/n) cross point switch modules each having m input conductors and n output conductors.

...read moreread less

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