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APC ProtectNet PDigiTel - Surge suppressor ( external )
Data line surges make up an overwhelming majority of all surge-induced damages where the equipment was thought to be already protected but had a back door such as a modem line unprotected. Network interface cards, in particular, can be destroyed by relatively mild spikes. According to Ethernet standards (IEEE 802.3), non-AC network electrical hazards include: direct contact between components and power or lightning circuits, static charge buildup on cables and component, high-energy transients coupled onto the local cabling system (those induced by other cables which are installed in the general proximity of network cables or lightning within a mile radius) and potential differences (even from building to building, between safety grounds to which components are connected). APC ProtectNet PDigiTel is a digital telephone surge protector. It protects digital phone lines used by T1, DLL, ISDN and other digital telecommunication equipment.
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