Figure 3-2 Outdoor scenario with AC power supply (BBU installed in an APM30H) (2)
In the 110 V or 220 V AC scenario, a BBU can be installed in an APM30H, which provides
power to a maximum of six RRUs. If more than six RRUs are configured, two APM30H cabinets
are required. Two APM30H cabinets can house two BBUs, which enable the base station to
work in triple mode. Figure 3-3 shows the typical scenarios when the backup power capacity
is greater than 184 Ah and not greater than 368 Ah and no transmission space is required.
DBS3900 (Ver.B)
Installation Guide 3 Installation Scenarios
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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