IEC 61753-081-06:2023包含信道间距为50 GHz的光纤中尺度1×，100GHz或200GHz满足分类为满足类别OP+（扩展户外保护环境）的要求。给出了具有高斯通带轮廓和平顶通带轮廓的DWDM器件的要求。这些要求不包括具有动态电气温度控制的设备。

IEC 61753-081-06:2023 contains the minimum initial test and measurement requirements and severities which a fibre optic middle-scale 1 × N (16 ≤ N ≤ 64) DWDM (dense wavelength division multiplexing) arrayed waveguide grating device with channel spacing of 50 GHz, 100 GHz or 200 GHz satisfies in order to be categorized as meeting the requirements of category OP+ (extended outdoor protected environment). The requirements are given for the DWDM devices with Gaussian passband profile and flat-top passband profile. The requirements exclude the devices with dynamic electrical temperature control.