Network apparatus

Details Network apparatus Network apparatus

2005-07-19

2005-07-19

DeBeradinis, Robert L. (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Switch actuation

C327S065000, C307S139000, C307S115000

Reexamination Certificate

active

06919652

ABSTRACT:
A network apparatus is provided, which allows another network apparatus to recognize the disconnection with reliability, if a power supply to the network apparatus is interrupted. A control unit operating with a first power supply outputs a first signal, which is level-converted and supplied as a second signal to an intermediate potential supply unit operating with a second power supply. In the intermediate potential supply unit, a switch receives a reset signal as a switch signal and outputs, when the power supply is interrupted, a ground potential to a driver instead of the second signal. As a result, an intermediate potential supplied to a cable is forcibly set to the ground potential.

REFERENCES:
patent: 5920734 (1999-07-01), Holmdahl
patent: 11-161444 (1999-06-01), None

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