Circuit arrangement for connecting a subscriber to a bus line vi

Details Circuit arrangement for connecting a subscriber to a bus line vi Circuit arrangement for connecting a subscriber to a bus line vi

1985-01-28

1987-04-07

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

371 15, 371 22, 375 10, G08C 2500

Patent

active

046564713

ABSTRACT:
In bus systems, the subscriber stations transmitter/receiver of which each are connected to a bus line via a transmitter/receiver in a low impedance state, the problem exists that in the event of a disturbance of a transmitter or a short circuit at a transmitter, the bus line is coupled to a constant potential and thereby blocked. In order to prevent this, electronic switches which are switched into conduction only during transmission and have otherwise high impedance are connected between the outputs of the transmitters and the bus line.

REFERENCES:
patent: 4236087 (1980-11-01), Kaminski et al.
patent: 4281380 (1981-07-01), DeMesa, III et al.
patent: 4320502 (1982-03-01), deVeer
patent: 4359731 (1982-11-01), Beauford et al.
patent: 4376278 (1983-03-01), Jacobsthal
patent: 4561094 (1985-12-01), Jackowski et al.
patent: 4564838 (1986-01-01), Boulogne et al.

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