Electronic switching system

Details Electronic switching system Electronic switching system

H - Electricity

04

Q

344/25, 344/54

H04Q 11/04 (2006.01)

Patent

CA 1070804

ABSTRACT OF THE DISCLOSURE In a telephone exchange system comprising a time division exchange system and space division concentrators connected to said exchange system with a PCM lines, said concentrators are controlled by said exchange system, thus those volume of hardware in the concentrators can be considerably reduced. Said concentrator comprises a space division switching network having self-latched electronic contacts, which are controlled by a periodical drive pulse from a cyclic readout type memory. - 1 -

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