Exchanges

Details Exchanges Exchanges

H - Electricity

04

Q

344/25

H04Q 11/04 (2006.01) H04Q 3/68 (2006.01)

Patent

CA 2013390

ABSTRACT IMPROVEMENTS IN OR RELATING TO EXCHANGES An electronic cross connect frame for an exchange or a multiple therefor is provided in which an analogue access matrix is provided for providing a limited number of spare cards or different cards to which any of the lines may be switched to provide a"sparing" or alternative services.

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