Definition of demarc in English English dictionary
meeting point for communications devices of two separate entities (ex: junction where home telephone equipment connects to the wires of the telephone company)
The transmission path originating from the interface of the access provider's side of a telecommunications circuit Demarcation Point within a premise and ending at the termination point prior to the interface of the edge Customer Premises Equipment. This may include in-segment equipment, media converters and patch cords as required to complete the circuit's transmission path to the edge CPE