Pulse or digital communications – Repeaters – Testing
Patent
1984-06-06
1984-12-18
Bookbinder, Marc E.
Pulse or digital communications
Repeaters
Testing
174 56, 174 66, 220 33, 220 39, 339122R, 339125R, 339130R, 339184R, 375 7, 455 3, H04B 300, H01R 730, H01R 1364
Patent
active
044894198
ABSTRACT:
A data communication system for the transmission of electrical information signals among a plurality of user devices removably connected to the system which transmit signals over receive and transmit branches of coaxial cable. An interface is connected to each user device, providing a signal transmit portion and a signal receive portion. Each interface has a threaded plug connector connected to its signal transmit portion, and a threaded plug connector connected to its signal receive portion.
The system further providing a plurality of outlets each connected to the receive and transmit branches through receive and transmit drop lines respectively, each outlet provides a threaded receptacle connected to the transmit drop line and a threaded receptacle connected to the receive drop line. The mating threaded portions of every transmit plug connector and transmit receptacle are threaded in a first sense, and the mating threaded portions of every receive plug connector and transmit receptacle are threaded in a second sense, so that any interface means is removably connectable to any outlet only in a correct transmit-receive relationship.
REFERENCES:
patent: 2394363 (1946-02-01), Bynoe
patent: 2427349 (1947-09-01), Boynton
patent: 2764429 (1956-09-01), Betzler
patent: 3194588 (1965-07-01), Buckey et al.
patent: 3218597 (1965-11-01), Oehlerking et al.
patent: 3699250 (1972-10-01), Bunting
patent: 3851104 (1974-11-01), Willard et al.
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