Front Panel: See Fig. 1
2. 输入指示灯（绿色）：当模块有交流输入时，此指示灯被点亮，表示模块有交流输入。
Indicator light of input (green): it is lightened when the module inputs AC, which means AC inputs into the module.
图一 前面板示意图
Fig. 1 View of Front Panel
3. 输出指示灯（绿色）：当模块有输出电压时，此指示灯被点亮，表示模块有直流输出。
Indicator light of output (green): it is lightened when the module outputs voltage, which means the module outputs DC.
4. 模块故障指示灯：当模块出现停机、输入过压、输入欠压、输出过压、输出欠压、模块过热、模块过流任何一种情况时模块故障指示灯被点亮 Indicator light of alarm: it is lightened when any of the following cases happens, including shutdown, input over voltage, input below voltage, output over voltage, output below voltage, module overheat and module over current.
5. 电压调节：手动调节单台模块的输出电压，输出电压调节范围198～286VDC连续可调。
Voltage control: manually control the output voltage of single module, with the continuous control range of output voltage from 198 to 286VDC.