你可能喜欢
单项选择题
A.ON/ON/ON/ON
B.ON/OFF/ON/OFF
C.OFF/ON/OFF/ON
D.OFF/OFF/OFF/OFF
单项选择题
A.ON/ON/ON/ON
B.ON/OFF/ON/OFF
C.OFF/ON/OFF/ON
D.OFF/OFF/OFF/OFF
单项选择题
A.最多可配置6块防雷板
B.SLPU中可配置UELP/UFLP单板,支持UELP/UFLP混配
C.当BBU3900中配置UTRP时,必须配置SLPU
D.当BBU3900在室外安装时,必须配置SLPU