Figure 8-22 Battery position
Figure 8-23 Connecting battery cables
● Do not connect the red positive cable until power-on commissioning.
● Ensure that battery cables for the extinguishant control panel are connected to
correct polarities.
Step 4 Close the door of the extinguishant control panel.
----End
8.4.2 Installing Standard Fire Extinguishing Devices
8.4.2.1 (Optional) Installing the Fire Cylinder
Prerequisites
● Pre-fab. modules have been installed.
● The extinguishant in the 
re cylinder meets the requirement.
FusionDC1000A Prefabricated All-in-One Data
Center
Installation Guide (IT Scenario) 8 Installing Devices Inside the Pre-fab. Module
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 85