Modular telecommunication system

Details Modular telecommunication system Modular telecommunication system

H - Electricity

04

Q

344/29

H04Q 3/54 (2006.01) H04L 12/50 (2006.01) H04Q 3/60 (2006.01)

Patent

CA 1172739

ABSTRACT OF THE DISCLOSURE A modular telecommunication system comprises a plurality of switching blocks and a plurality of inter-connecting lines for interconnecting the switching blocks. Each of the switching blocks includes a multiplicity of line terminators each adapted to be controller is provided data terminal. A communications controller is provided in each switching block for controlling local data exchange between pairs of line terminators connected thereto across real channels. A virtual channel control- ler is connected to the communications controller and controls remote data exchange across virtual channels to different, switching blocks. Interface units are arranged between the virtual channel controller and a respective one of the inter-connecting lines for providing remote data exchange between data terminals each associated with a different switching block. A direction memory arranged in the virtual channel controller contains control infor- mation for selecting the virtual channel assigned to a call and for establishing the communication link to a line terminator and a remote switching block, respectively. The virtual channels are assigned to a call in a one-to- one correspondence, thereby specifying one inter-connecting link in both directions.

388705

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