Arrangement for monitoring a two-wire bus line

Details Arrangement for monitoring a two-wire bus line Arrangement for monitoring a two-wire bus line

1995-04-11

1998-07-14

Bocure, Tesfaldet

Pulse or digital communications

Testing

327 64, 375257, H03B 346, H03B 1700, H04Q 120

Patent

active

057815852

ABSTRACT:
An arrangement for monitoring a two-wire bus line for serial transmission of digital data includes a bus subscriber receiving circuit coupled to the two-wire line and including three comparators each having two inputs and an output for producing a logical output signal in dependence of signals at the two inputs. A signal line voltage on each wire of the two-wire bus line is applied, respectively, to the two inputs of a first one of the comparators and one of the two signal line voltages, an auxiliary voltage is applied, respectively, to the two inputs of a second one of the comparators and the other of the two signal line voltages and an auxiliary voltage being applied, respectively, to the two inputs of a third one of the comparators. A logic circuit is coupled to the outputs of the three comparators for simultaneously receiving the logical output signals of at least the second and third comparators and for signaling a fault-free condition of the bus system if all received logical output signals from the comparators are in agreement, and for signaling a fault if all received logical output signals from the comparators are not in agreement.

REFERENCES:
patent: 5267251 (1993-11-01), Lenoir et al.
patent: 5375142 (1994-12-01), Pitot et al.

Affiliated with

Also associated with

Rating

Arrangement for monitoring a two-wire bus line does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arrangement for monitoring a two-wire bus line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for monitoring a two-wire bus line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1890845