Modular communications interconnection

Communications: electrical – Continuously variable indicating – With meter reading

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340825790, H04Q 100

Patent

active

053962311

ABSTRACT:
A communications system (FIG. 7) couples together a number of entities or communications devices 710 by means of alternating stages (722, 726) of crossbar switches (712, 716) and stages (724, 728) of stride extender coupler circuits, which are preferably in the form of modules (714, 718), together with a final stage (730) of cross-connecting "termination" circuits or modules (720). The system can be expanded in performance capability (FIG. 8) by adding further stages (822, 828) of crossbar switches and stride extender coupling circuits or modules.

REFERENCES:
patent: 3842214 (1974-10-01), Altenburger et al.
patent: 3851124 (1974-11-01), Garavalia
patent: 3893082 (1975-07-01), Ryder
patent: 4566007 (1986-01-01), Richards
patent: 5123011 (1992-06-01), Hein et al.

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