Horizontal installation
水平安装
At ambient temperatures higher than 45°C, the X20CM4810 requires power derating:
在高于 45°C 的环境温度下，X20CM4810 需要功率降额：
If the X20CM4810 is to be operated with ambient temperatures up to 50°C, then the neighboring modules must not consume more than 1 W.
For an example for calculating the power dissipation of I/O modules, see here.
如果 X20CM4810 要在高达 50°C 的环境温度下运行，则相邻模块的功耗不得超过 1 W。
有关计算 I/O 模块功耗的示例，请参见此处.(Hardware - X20 system - Power dissipation calculation of I/O modules)
Example: ambient temperature up to 50°C
示例：环境温度高达 50°C
X20 double-width modules are an exception. It is also possible, for example, to place multiple X20CM4810 modules next to one another.
X20 两倍宽度的模块是一个例外。例如，也可以将多个 X20CM4810 模块并排放置。
Example: ambient temperature up to 45°C
示例：环境温度高达 45°C
Vertical installation
垂直安装
At ambient temperatures higher than 35 °C, the X20CM4810 requires power derating:
在高于 35 °C 的环境温度下，X20CM4810 需要功率降额：
If the X20CM4810 is to be operated with ambient temperatures up to 45°C, then the neighboring modules must not consume power.
Example: ambient temperature up to 45°C
如果 X20CM4810 要在高达 45°C 的环境温度下运行，则相邻模块不得消耗功率。
示例：环境温度高达 45°C
Example: ambient temperature up to 35°C
示例：环境温度高达 35°C
X20 double-width modules are an exception. For example, multiple neighboring X20CM4810 modules can be operated up to an ambient temperature of 30°C.
X20 两倍宽度模块是一个例外。例如，多个相邻的 X20CM4810 模块可以在高达 30°C 的环境温度下运行。