ground fault detection system, method for detecting ground fault in a communication channel and fire safety system

摘要

"system and method for detecting ground fault in a transformer isolated communication channel of a network device". The present invention relates to a system and method for detecting non-intrusive failure of a ground fault in a communication channel. A bias voltage may be established on a first portion of the communication channel and a second portion of the communication channel. A first voltage can be detected through a first resistor electrically connected to the first and second portions of the communication channel. Data indicating whether the ground fault exists in the first or second portion of the communication channel may be provided based on detection.