What are lightning protectors?
Lightning protectors (also sometimes called surge protectors or surge arrestors) are devices that are attached to any cable line (both power lines and signal lines) to stop transient power surges, often caused by lightning, while allowing any normal voltages to go through with minimal signal loss. They can range in prices, but are always significantly cheaper than the costs of replacing damaged or destroyed equipment, network downtime, and the potential catastrophes that can occur when control equipment is suddenly unable to function.
As L-com has published in several newsletters (5/17/11, 8/9/11, and others) and whitepapers, lightning protectors are an often overlooked-but absolutely necessary-part of any long term cabling installation. This includes coaxial lines, telephone/DSL/T1 lines, UTP and STP Ethernet LAN cabling, audio/video cabling, 4-20 mA current loop lines, AC/DC control lines, RS422-485 style data lines and even installed USB lines. Virtually any cable with conductive material requires lightning protection as part of the overall system setup.
How do lightning protectors work?
The goal of any lightning protection system is to minimize the risk of transient voltages reaching sensitive equipment. Lightning protectors are therefore often installed at either end of a cable line, protecting both ends. When properly installed, they redirect surges to ground and sometimes they also cut the conductivity of the line completely, isolating any equipment from the danger.
Part of the quality of a lightning protector is in its ability to provide excellent protection while at the same time providing extremely low signal loss, which is necessary for today's high-speed networks. L-com's lightning protectors use a variety of methods to achieve their high quality:
L-com Global Connectivity 45 Beechwood Drive North Andover, MA 01845www.L-com.com E-mail: sales@L-com.com Phone: 1-800-341-5266 Fax: 1-978-689-9484