scope:

This standard covers the minimum temperature, humidity, and altitude criteria for wireline and wireless telecommunications network equipment to be installed and utilized by service providers in controlled environmental spaces (e.g., Carrier Communication Spaces, Central Offices, MTSOs, Huts, CEVs, and customer premises). It describes test methodologies and test report criteria necessary for proper evaluation by interested parties, and those intending to deploy equipment in such environments (also called Class 1 environments).

This standard defines temperature and humidity ranges in which the equipment must operate, and provides test methodologies to evaluate equipment operation in those environments. The expectation is that equipment will continue to function properly and without degradation of performance when placed in these environments.