EM Test TSS 500N10 Telecom Surge Generator for Belcore/Telcordia GR-1089

Telecordia GR – 1089 (formerly Bellcore) sets the criteria for wireline and wireless EMC applications. GR-1089 is used to ensure telecommunications equipment contains the electromagnetic compatibility (EMC) and electrical safety criteria necessary to perform safely and reliably. GR – 1089 contains NEBS (Network Equipment - Building System) criteria that cover equipment in Central Offices (COs); equipment in the Outside Plant (OSP) at locations such as Controlled Environmental Vaults (CEVs), Electronic Equipment Enclosures (EEEs), and huts; equipment in uncontrolled structures such as cabinets; and network equipment at the customer premises. Telecommunications equipment, by nature of its application in the telecommunications network, may be exposed to one or more sources of electromagnetic energy. The criteria in this document are intended to help avoid equipment damage and malfunction because of lightning, 50/60-Hz commercial power fault conditions, Electrostatic Discharge (ESD), Electrical Fast Transient (EFT), Electromagnetic Interference (EMI), operation in the presence of a DC potential difference, and operation in a steady-state induced voltage environment. This document also presents other criteria intended to help establish that equipment will not become a fire or electrical safety hazard in the presence of severe lightning or power fault conditions. Safe voltage levels for intentionally applied sources, electrochemical corrosion effects, grounding, and DC powering are considered as well. In addition to wireline services, this standard applies to wireless systems that provide fixed and/or mobile services that are installed in locations with telecommunications network equipment or information technology networking equipment. "Electromagnetic Compatibility and Electrical Safety - Generic Criteria for Network Telecommunications Equipment." Telecordia. N.p., n.d. Web. Retrieved on 25 Nov. 2013.

The ITU K series are recommendations for protection against interference. The K recommendations cover every aspect of the telecommunications system and include protection components. The K series recommendations are comprised of the following: K.5: Joint use of poles for electricity distribution and for telecommunications K.6: Precautions at crossings K.7: Protection against acoustic shock K.8: Separation in the soil between telecommunication cables and earthing system of power facilities K.9: Protection of telecommunication staff and plant against a large earth potential due to a neighbouring electric traction line K.10: Low frequency interference due to unbalance about earth of telecommunication equipment K.11: Principles of protection against overvoltages and overcurrents K.12: Characteristics of gas discharge tubes for the protection of telecommunications installations K.13: Induced voltages in cables with plastic-insulated conductors K.14: Provision of a metallic screen in plastic-sheathed cables K.18: Calculation of voltage induced into telecommunication lines from radio station broadcasts and methods of reducing interference K.19: Joint use of trenches and tunnels for telecommunication and power cables K.20: Resistibility of telecommunication equipment installed in a telecommunications centre to overvoltages and overcurrents K.21: Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents K.23: Types of induced noise and description of noise voltage parameters for ISDN basic user networks K.24: Method for measuring radio-frequency induced noise on telecommunications pairs K.26: Protection of telecommunication lines against harmful effects from electric power and electrified railway lines K.27: Bonding configurations and earthing inside a telecommunication building K.28: Parameters of thyristor-based surge protective devices for the protection of telecommunication