公开(公告)号：US20250141786A1

公开(公告)日：2025-05-01

申请号：US18781498

申请日：2024-07-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Giha YOON ,  HARK YOO ,  GEUN YONG KIM ,  Sung Chang Kim ,  Chorwon Kim

IPC: H04L45/24 ,  H04L9/40 ,  H04L41/0816

Abstract: A power grid access security system for intermittent communication ports includes a link manager configured to manage and monitor a link of a communication port, a power source configured to supply needed for a function operation of the communication port, and a multi-interface configured to integrate and provide an interface for a network link and a security service, wherein the link manager checks whether a network link of an external device is established, based on link setting information, and when a condition for the network link is not satisfied, removes data received from the external device, based on the link setting information.