一种定义
四种语言
During installationAlways ensure the relevant section of your overall system is not live before installing the product and/or plugging it in or unplugging it.
Always deactivate the power to the relevant system part and ensure it is not live before installing the product and/or plugging it in or unplugging it.
During installationAlways deactivate the power to the relevant system part and ensure it is not live before installing the product and/or plugging it in or unplugging it.