The Edco NET is a SIECOR Network Interface Line Module with built-in secondary surge protection. In addition to silicon breakover clamping technology (overvoltage), the NET Series incorporates state-of-the-art resettable overcurrent protection devices—PTCs. The overcurrent circuitry allows normal telephone currents to pass, but quickly switches to a high impedance state when subjected to extended overcurrents that can damage telephone system line cards.
