Methods circuits devices assemblies systems and functionally associated computer executable code for detecting a line condition

A system for network cable monitoring, said system comprising:

• a network security center for issuing a network condition alert based on received updates;
• and
• one or more network appliances for detection of a physical condition of a network cable, each of said appliances comprising:
• one or more line monitoring circuits each of which is adapted to monitor a power barring line or a ground line of the network cable, by measuring one or more electrical parameters of the monitored line;
• an alert condition detector adapted to receive from said monitoring circuits information indicative of measured electrical parameters of the monitored line and to use the received information to identify an alert condition indicative of a physical condition of the network cable;
• and
• a controller, functionally associated with said alert condition detector and a communication module, for engaging in secure communication with, and providing updates of one or more physical conditions of the network cable to said network security center.