2.2 Installation of the Hybrid IP-PBXInstallation Manual 512.2.10 Surge Protector InstallationOverviewA massive electrical surge can be caused if lightning strikes a telephone cable 10 m above ground, or if atelephone line comes into contact with a power line. A surge protector is a device that is connected to a trunkto prevent potentially dangerous electrical surges from entering the building via the trunk and damaging theHybrid IP-PBX and connected equipment.To protect the system from electrical surges, we strongly recommend connecting the system to a surgeprotector that meets the following specifications:– Surge arrestor type: 3-electrode arrestor– DC spark-over voltage: 230 V– Maximum peak current: at least 10 kAAdditionally, proper earthing is very important for the protection of the system (refer to "2.2.5 Frame EarthConnection").Many countries/areas have regulations requiring surge protection. Be sure to comply with all applicablelaws, regulations, and guidelines.InstallationCSTrunk Trunk TrunkExtn.Extn. Extn. Extn.Extn.: Extension lineSurgeProtectorTerminalBoard HybridIP-PBXFrameEarthSLTEarthPT
