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.

• APC ProtectNet PDigiTel - surge suppressor
• Device Type - Surge suppressor
• Form Factor - External
• Dimensions (WxDxH) - 1.9 in x 1.1 in x 4.1 in
• Weight - 2.1 oz
• Localization - Belgium, Bahrain, Jordan, Kuwait, Lebanon, Oman, Saudi Arabia, Yemen, United Arab Emirates, Afghanistan, Albania, Argentina, Armenia, Aruba, Australia, Benin, Bulgaria, Cameroon, China, Colombia, Cooks Island, Czech Republic, Estonia, Fiji, Indonesia
• Manufacturer Warranty - Lifetime warranty