Patent ID: 8112469
Filing Date: 2012-02-07
Classification: H04L

Abstract:
1. An emergency override system for a network device, comprising: a first communication interface configured to be connected to the network device; a second communication interface connected to the first communication interface by a communication line, the second communication interface configured to connect the emergency override system and the network device to a network; a sensor disposed along the communication line, the sensor configured to detect network data being transmitted on the communication line; wherein the sensor is configured to output a signal indicative of at least one of the presence and absence of network data being transmitted on the communication line; a switch disposed along the communication line, the switch having an open configuration that prevents network data on the communication line from being transmitted to the first communication interface and a closed configuration that passes network data on the communication line to the first communication interface; and a processor coupled to the switch and the sensor, the processor configured to: wherein the device control data commands the network device to perform a predetermined function in response to a lack of network data being transmitted on the communication line.