Transmission-reception equipment for a bus system

Details Transmission-reception equipment for a bus system Transmission-reception equipment for a bus system

1987-12-11

1989-11-14

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375121, 307270, H04B 300, H04L 2500

Patent

active

048812447

ABSTRACT:
Transmission-reception equipment for a bus system guarantees a reliable response of all bus receivers in a bus system preferably constructed with a shielded twisted-pair cable and having a greater length and/or higher bit rate than prior art systems. The stations are coupled to the bus system via a repeater having a primary winding and a secondary winding having the same number of turns. Two bus transmitters are connected parallel to one another and are respectively connected to the primary winding halves separated by a resistor. The bus reception equipment is connected to a series circuit of the two primary winding halves, whereas the secondary winding is connected to the signal conductors of the bus system. A voltage doubling achieved in the transmission direction is thereby not cancelled in the reception direction.

REFERENCES:
patent: 3465101 (1969-09-01), Christian et al.
patent: 3875332 (1975-04-01), Fletcher et al.
patent: 4254501 (1981-03-01), Griffith et al.
patent: 4337465 (1982-06-01), Spracklen et al.
patent: 4445222 (1984-04-01), Smitt

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