For UPS battery installation, the installation tools are not require to insulate.

The access control devices in Huawei FusionModule2000 are classified into ( ).

The main reason for the energy-saving effect of the closed cold/hot passage is ()

Which is not included in the routine maintenance of the ECC800 module?

() indicates the amount of electricity that can be discharged when the fully charged battery is discharged to the specified termination voltage according to certain discharge conditions. The unit is expressed in Ah (Ah) or Watt (Wh).