Definitions for "Smart Jack"
Keywords:  demarc, circuit, remotely, lec, passive
Device used to test integrity of T1 circuits remotely from the central office. Installed on the customer premises, the Smart Jack is completely passive until activated remotely by a digital code.
A connector device that is installed by the LEC at the Demarc which provides the customer with the physical connection to their DS-1 service and provides the LEC the ability to perform diagnostic testing on the circuit.
See demarc .