IEC 62343-4-1:2016（E）描述并提供了1 x 9波长选择开关的软件和硬件接口规范。这些交换机可以通过该接口的常驻固件进行控制。本标准阐述了控制WSS的配置和功能。此界面旨在使用户或主机检索交换机状态和/或调整相关交换机和衰减设置。 关键词:波长选择开关（WSS）、可重构光分插复用器（ROADM）、密集波分复用（DWDM）

IEC 62343-4-1:2016(E) describes and provides specifications for a software and hardware interface for the 1 x 9 wavelength selective switch. These switches can be controlled by resident firmware with this interface. This standard addresses the configuration and function to control a WSS. This interface is intended to enable a user or host to retrieve the switch status and/or adjust relevant switch and attenuation settings. Keywords: wavelength selective switch (WSS), reconfigurable optical add drop multiplexer (ROADM), dense wavelength division multiplexing (DWDM)