R251D/R251D-E Remote Units
RUs with built-in smart antennas, wider coverage area, and new “Morning Dew” design that blends into their surroundings.
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RUs with built-in smart antennas, wider coverage area, and new “Morning Dew” design that blends into their surroundings.
R251D & R251D-E Remote Units
Huawei R251D and R251D-E are 802.11ac Wave 2 Remote Units (RUs) used in Huawei Distributed Wi-Fi Solution. They have built-in smart antennas and support 2 x 2 MIMO and two spatial streams, achieving a rate of 1.267 Gbit/s. The R251D and R251D-E are applicable to environments with complex wall structures and high-density rooms, such as schools, hotels, hospitals, and office meeting rooms.
Flexible Smart Antenna Array Technology
Provides precise coverage for STAs, reduces interference, and improves signal quality, enabling signals to follow users.
Flexible Installation
Easy to install: Ceiling-mounted, wall-mounted, and desk-mounted methods.
Diversified Features
One GE uplink port, four GE downlink ports, and two RJ45 pass-through phone ports (compatible with RJ11).
Specifications¹
| Specifications | R251D and R251D-E |
| Dimensions (H x W x D) | 32.5 mm x 86 mm x 150 mm |
| Power Input | PoE power supply: In compliance with IEEE 802.3af/at |
| Interface Types | Uplink: 1 x GE Downlink: 4 x GE 2 x Pass-through RJ45 port 1 x USB port (supported by the R251D-E) |
| Built-in Bluetooth | BLE4.1 (supported by the R251D-E) |
| PoE OUT | Supported by R251D-E: Maximum 13.6W (802.3at-compliant, supported only by GE4) |
| Operating Temperature | 0°C to 40°C |
| Antenna Type | Built-in smart antennas |
| Maximum Number of Users | ≤ 256 |
| Maximum Power Consumption | R251D: 11.5W R251D-E: 11.5W (excluding the output power of the USB port and PoE_OUT port) Note: The actual maximum power consumption depends on local laws and regulations. |
| Maximum Transmit Power | 2.4 GHz: 23 dBm (combined power) 5 GHz: 23 dBm (combined power) Note: The actual transmit power depends on local laws and regulations |
| MIMO: Spatial Streams | 2 x 2:2 |
| Radio Protocols | 802.11a/b/g/n/ac/ac Wave 2 |
| Maximum Rate | 1.267 Gbit/s |
1. This content is applicable only to regions outside mainland China. Huawei reserves the right to interpret this content.
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