R250D&R250D-E
Product Description
1 Product Positioning and Characteristics
Issue 01 (2016-07-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2
Usage Scenario
Figure 1-1
Distributed wireless access
As shown in the figure, the downlink GE interfaces of the central AP support PoE power
supply and can be directly connected to RUs. The central AP can connect to more RUs
through a PoE switch. RUs are deployed indoors and communicate with the central AP
through network cables.
1.2 Product Characteristics
Long-Distance Network Coverage
Unlike the traditional distributed AP which allows for a maximum feeder length of 15 m, the
central AP uses network cables to replace feeder cables and supports up to 100 m distance
from the RUs. The network coverage range is therefore expanded by several times.
No Wall Penetration Loss, No Coverage Hole
Restricted by feeder length or installation requirements, signals have to pass through walls in
some scenarios, resulting in large signal attenuation. If rooms to be covered have complex
structures, coverage holes may occur. To prevent these problems, lots of calculation and
verification work needs to be carried out. Huawei distributed solution solves these problems.
In this solution, RUs are placed in rooms, and signals are transmitted over wired cables,
without wall penetration loss, delivering high-quality wireless access services.
