IEC 62386-202:2022适用于由电子照明设备的数字信号控制的控制装置，该电子照明设备与IEC 61347-2-7中描述的独立应急照明相关联，具有用于配置应急操作的附加控制接口。 第二版取消并取代了2009年出版的第一版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: 范围更新， 可以禁用硬连线开关操作， 添加了安装禁止功能， 内存库补充， 澄清了操作模式，并进行了一些修改和补充， 增加了进入扩展应急模式的命令， 添加了在持续时间测试模式下延长时间的命令。

IEC 62386-202:2022 is applicable to control gear for control by digital signals of electronic lighting equipment which is associated with self-contained emergency lighting as described in IEC 61347-2-7 with additional control interface for configuring emergency operation.
This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:

1. scope updated,
2. hardwired switch operation can be disabled,
3. installation inhibit feature added,
4. memory bank added,
5. modes of operation clarified, with some changes and additions,
6. command added to enter extended emergency mode,
7. command added to extend time in duration test mode.