Time division switching system control arrangement and method

Details Time division switching system control arrangement and method Time division switching system control arrangement and method

H - Electricity

04

Q

344/25

H04Q 11/04 (2006.01)

Patent

CA 1237188

- 28 - TIME DIVISION SWITCHING SYSTEM CONTROL ARRANGEMENT AND METHOD Abstract A method and arrangement for controlling a time division switching system including a time multiplexed switch is disclosed. The time division switching system comprises a plurality of time-slot interchange units which connect subscriber sets to the input/output ports of a time multiplexed switch. When a connection is to be established between time-slot interchange units, a central control transmits to the time multiplexed switch a path setup message defining the input/output ports to be connected and the time slot to be used for such a connection. The time multiplexed switch controller responds to the path setup messages by disconnecting existing connections through the time multiplexed switch which potentially conflict with the requested connection, then by completing the requested connection. Accordingly, the switching system operates effectively without requiring separate disconnect messages when connections through the time multiplexed switch are no longer needed.

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