IEC 60728-6:20 11（E）规定了用于电视信号、声音信号和交互服务的有线网络光学设备的测量方法、性能要求和数据公布要求。第三版取消并取代了2003年出版的第二版，后者构成了技术修订。与上一版相比，它包括以下重大技术变更: -更新了规范性参考文献。 -光功率和回波损耗的测量方法由参考其他标准品代替。 -删除了偏振相关损耗的测量方法。 -增加了载波串扰比(CCR)的测量方法。 -将光放大器的CSO和CTB的测量方法替换为光放大器的微观增益倾斜的测量方法。该参数可用于根据新附录B中描述的方法计算光放大器的二阶失真。已经定义了光发射机和接收机的新类别。

IEC 60728-6:2011(E) lays down the measuring methods, performance requirements and data publication requirements of optical equipment of cable networks for television signals, sound signals and interactive services. This third edition cancels and replaces the second edition published in 2003 of which it constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition:
- The normative references were updated.
- The methods of measurement for optical power and return loss were substituted by references to other standards.
- The method of measurement for polarization dependent loss was deleted.
- A method of measurement for carrier-to-crosstalk ratio (CCR) was added.
- The methods of measurement for CSO and CTB of optical amplifiers were substituted by a method of measurement for microscopic gain tilt of optical amplifiers.
This parameter can be used for calculating the second order distortion of optical amplifiers according to the method described in the new Annex B. New classes for optical transmitters and receivers have been defined.