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Updates

    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.

    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 2x2:2
    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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