This requirement has been eliminated for products operating at voltages proven to be highly immune to leakage current effects.
The standard sets strict guidelines for operating in various conditions.
The standard covers a wide range of physical and environmental stresses that equipment must withstand: 1. Spatial and Physical Requirements
Developed by Telcordia Technologies (now part of Ericsson), GR-63-CORE is a key document in the Network Equipment-Building System (NEBS) family of standards. Its main goal is to provide a single, comprehensive set of used in Central Offices (COs) and other environmentally controlled spaces. gr63core issue 5 pdf full
While previous versions established the baseline, Issue 5 brings specific updates designed to add clarity, optimize testing procedures, and adapt to modern hardware designs. Some of the standout changes include:
The main objective of this document is to ensure that equipment operates reliably under normal and abnormal conditions, including seismic events, fires, and hazardous environments. Key Areas Covered by GR-63-CORE
A: It means the product has been tested by an accredited lab and meets the rigorous physical protection criteria of the 2013 version (Issue 5) of the standard. This requirement has been eliminated for products operating
is the current version of a crucial industry standard, officially titled "NEBS Requirements: Physical Protection." Published by Telcordia Technologies (now part of iconectiv) in December 2013, it supersedes all earlier versions like Issue 3 and Issue 4, making it the definitive reference for physical protection criteria in the telecom industry.
GR-63-CORE defines the minimum spatial and environmental criteria for telecommunications equipment used in Central Offices (COs) and other controlled environments. Its goal is to ensure the reliability and durability of the Public Switched Telephone Network (PSTN). Intertek Inform 2. Core Requirement Sections
The standard applies to:
Visit the Ericsson/Telcordia Telecom Information Portal for direct access to their library of Generic Requirements (GR) documents.
Telcordia GR-63-CORE Issue 5 defines essential NEBS physical protection, spatial, and environmental criteria for telecommunications equipment, focusing on fire resistance, seismic stability (Zone 4), and thermal management. Compliance involves rigorous testing—including shaker tables for earthquakes and environmental chambers—and documentation, specifically for equipment deployed in Central Offices. For more details, visit Lande - Rack Kabinet SEISMIC Tests Certificate - Lande - Rack Kabinet