Method and apparatus for bus fault location

Details Method and apparatus for bus fault location Method and apparatus for bus fault location

1982-08-23

1985-04-30

Smith, Jerry

Excavating

364900, 371 22, G06F 1126, G06F 1122

Patent

active

045148457

ABSTRACT:
A bus fault location arrangement for locating the source of a fault condition on a bus connecting a plurality of devices energized by a power supply. When such a fault condition is detected, a bus diagnostic unit included in the arrangement transmits a signal to place a given one of the plurality of devices in a high impedance state. The bus diagnostic unit then transmits a given signal level on the bus. To determine whether the given device is the source of the fault condition, current flow between the device and the power supply is sensed and an error signal is stored when the sensed current exceeds a predetermined magnitude.

REFERENCES:
patent: Re27580 (1973-02-01), Rawson et al.
patent: 3599179 (1971-08-01), Arnold
patent: 4100605 (1978-07-01), Holman
patent: 4122358 (1978-10-01), Altmann
patent: 4371952 (1983-02-01), Schuck

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