DK-nDCt/RJ45 5-24L Rack-mounted Network Signal Surge Protective Device is designed according to the IEC lightning protection standard. Adopted integration of all metal structure, standard RJ45 and 19 Inch 1U cabinet-mounted, it can be used in the lightning protection of integrated network signal equipments. It takes the advantages of large throughput, fast response, and other features, making sure the equipments to work normally.