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Description
Huawei R251D is remote units (RUs) used in Huawei agile distributed Wi-Fi solution. The RUs can receive PoE power supply, and are deployed in rooms and connected to a central AP. The central AP and RUs are plug-and-play and can be managed and maintained in real time. Compared with traditional distributed AP solutions, the AC in Huawei agile distributed Wi-Fi solution needs to manage a smaller number of APs. A large number of RUs can be deployed, which improves the overall performance and reduces network deployment costs.
The RUs can be easily installed in junction boxes (86 mm/120 mm/118 mm) without damaging indoor decoration. The hidden indicator design and the optimized indicator luminance of the R251D and R251D-E reduce the light impact on users. The indicator can also be shut down through the software as required.
The R251D has an IEEE 802.11a/b/g/n/ac/ac Wave 2 wireless module and can work on both 5 GHz and 2.4 GHz frequency bands. The built-in smart antennas of the RUs help achieve better coverage.
The RU is recommended for environments with complex wall structures and high-density rooms, such as schools, hotels, hospitals, and office meeting rooms. Signals are transmitted through network cables without attenuation. The RUs are deployed indoors and provide comprehensive signal coverage.
The RUs are managed by the central AP. The central AP and RUs are plug-and-play and can be managed and maintained in real time. Compared with traditional distributed AP solutions, the AC in Huawei agile distributed Wi-Fi solution needs to manage a smaller number of APs. A large number of RUs can be deployed, which improves the overall performance and reduces network deployment costs.
Tech Specs
| Item | Description | |
| Physical specifications | Dimensions (H x W x D) | 32.5 mm x 86 mm x 150 mm (1.28 in. x 3.39 in. x 5.91 in.) |
| Weight | 0.25 kg | |
| System memory | 256 MB DDR3L | |
| FLASH | 32 MB NOR FLASH | |
| Power specifications | Power input | PoE power supply: |
| R251D: in compliance with IEEE 802.3af | ||
| Maximum power consumption | R251D: 11.5 W | |
| NOTE: | ||
| The actual maximum power consumption depends on local laws and regulations. | ||
| Environment specifications | Operating temperature | -60 m to +1800 m: 0°C to +40°C |
| 1800 m to 5000 m: Temperature decreases by 1°C every time the altitude increases 300 m. | ||
| Storage temperature | -40°C to +70°C | |
| Operating humidity | 5% to 95% (non-condensing) | |
| Atmospheric pressure | 53 kPa to 106 kPa | |
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