本技术报告（TR）推荐了测量、报告和验证在电信网络设施中运行的电信设备噪声排放的方法。有关这些方法的详细信息，请参见ISO 7779和ISO 9296。用于量化声噪声发射的描述符是以贝尔为单位的声功率级。应对每种类型或型号的设备进行测量。本文所含建议仅适用于设备正常运行期间产生的空气传播噪声。 也就是说，维修设备时，该文件不适用。此外，本文件不适用于在操作过程中产生声音的设备特性，例如报警信号、注意信号等。

This Technical Report (TR) recommends methods for measuring, reporting and verifying the noise emission of telecommunications equipment operated in a telecommunications network facility. The details of the methods are found in ISO 7779 and ISO 9296. The descriptor used to quantify acoustic noise emission is sound power level in units of bels. Measurements should be performed on each equipment type or model. The recommendations contained herein apply only to the airborne acoustic noise generated by equipment during normal operation. That is, the document does not apply when the equipment is being serviced. Also, the document does not apply to equipment features which produce sound as an intentional aspect of their operation, e.g. alarm signals, attention signals and so on.