Reliable signal system having at least one transmitter feeding p

Details Reliable signal system having at least one transmitter feeding p Reliable signal system having at least one transmitter feeding p

1982-07-23

1984-05-01

Orsino, Jr., Joseph A.

Multiplex communications

Wide area network

Packet switching

307 36, 340641, 370 16, H04B 300

Patent

active

044465505

ABSTRACT:
A signalling apparatus has at least one transmitter in a transmitter assembly for transmitting a signal by impressed current to several spatially separated receivers. A series circuit of threshold members is connected to the output terminals of each transmitter, the number of members corresponding to the number of receivers. The input of each receiver is connected to a threshold member; the receivers are therefore connected in series on the input side. It is ensured thereby that the same current flows through all receivers. In the event of a failure of a transmission line or a receiver, the current continues to flow through the associated threshold member so that signal transmission to the other receivers continues uninterrupted.

REFERENCES:
patent: 2461962 (1949-02-01), Carlson

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