本标准涵盖了服务提供商在受控环境空间（如运营商通信空间、COs、MTSO、小屋、CEV和客户场所）中安装和使用的电信网络设备的最低温度、湿度和海拔标准。它描述了相关方以及打算在此类环境中部署设备的各方进行适当评估所需的测试方法和测试报告标准。当设备放置在本标准规定的温度和湿度受控环境空间中时，预期设备将继续正常工作，且不会出现任何意外的性能退化。在暴露于其他环境压力后，设备也有望正常工作，例如在高空应用和储存和运输期间。

This standard covers the minimum temperature, humidity, and altitude criteria for telecommunications network equipment to be installed and utilized by service providers in controlled environmental spaces (e.g., Carrier Communication Spaces, COs, 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.The expectation is that equipment will continue to function properly and without any unexpected degradation of performance when placed in the temperature and humidity controlled environmental spaces defined in the standard. Equipment is also expected to function properly after exposure to other environmental stresses, such as experienced in high altitude applications and during storage and transportation.