● Alarm monitoring: Displays site alarm information in real time and quickly
locates device faults.
● Security monitoring: Monitors the cabinet door status and cameras in sites.
Figure 3-53 Networking mode
3.5 Surge Protection and Grounding System
3.5.1 Surge Protection Solution
The smart module is mainly used for building data centers. Its power distribution
system is a subsystem of the building power distribution system. Class I surge
protective devices (SPDs) of the power system are provided by the general low-
voltage power distribution room or cabinet of the building.
3.5.2 Grounding Solution
Equipotential Grounding for Cabinets in the Module
A general ground bar is congured in the Converged Cabinet. The ground
terminals in other cabinets are connected to the general ground bar by cables
with a cross-sectional area no less than 16 mm
2
. The general ground bar is
connected to the
oor ground bar (FEB) or collective ground bar (25 mm x 3 mm
copper bar laid along cable trays or walls) of the equipment room by ground
cables with a cross-sectional area no less than 35 mm
2
.
The AC input power is from the upstream power distribution system. The cross-sectional
areas of ground cables are determined according to IEC 60364-5-54.
FusionModule800 Smart Small Data Center
User Manual 3 System Architecture
Issue 01 (2021-02-05) Copyright © Huawei Technologies Co., Ltd. 88
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