Huawei AD9431DN-24X Central AP Datasheet

Huawei AD9431DN-24X Central AP Datasheet

Product overview

As ICT construction is taking place in various industries, such as the education, business, and enterprise, Wi-Fi technology has also found a wide application. Traditional settled AP or indoor distributed AP face the problems of poor signals or insufficient performance when providing coverage for dormitories, hotels, or offices. To resolve these problems, Huawei reforms the architecture of the traditional network and launches the innovative agile distributed Wi-Fi solution which can provide 1.167/1.267 Gbit/s high bandwidth for each room and comprehensive coverage without coverage holes. The agile distributed Wi-Fi solution is composed of the central AP AD9431DN-24X and remote units. The AD9431DN-24X can be deployed in the equipment room, weak-current well, or on the corridor. The remote units (RUs) are placed in rooms, and signals are transmitted over wired cables, without wall penetration loss, delivering high-quality wireless access services.


Typical Networking


  • The AD9431DN-24X have 4 uplink 10 * GE interfaces.
  • The downlink GE interfaces of the AD9431DN-24X support 24 PoE+ ports and can be directly connected to RUs.
  • The AD9431DN-24X can be connected to 24 RUs directly and a maximum of 48 RUs through a switch.
  • This solution is applicable to scenarios with a high density of rooms, such as dormitories, hotels, and offices.
  • Feature description

    Easy to Manage

    The RUs do not occupy AC licenses. The AC only needs to manage AD9431DN-24X, so nearly 10,000 rooms require merely about 200 APs.

    Flexible Deployment Modes Ensure Full Signal Coverage Without Coverage Holes

    AD9431DN-24X connects to indoor RUs through network cables without wall penetration loss and feeder loss, implementing high-quality signal coverage. The RUs can be flexibly mounted to a wall plate, wall, or ceiling.

    Long-Distance Coverage

    Unlike the traditional distributed AP which allows for a maximum feeder length of 15 m, the AD9431DN-24X 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.

    Link Disconnection Survival

    When the link between the AD9431DN-24X and AC disconnects, the AD9431DN-24X and RUs can maintain the current working states, preventing service interruptions of users and ensuring high-reliability transmission.

    Hierarchical Processing Technology, High Wireless Forwarding Capability

    Huawei agile distributed Wi-Fi solution uses innovative hierarchical processing technology. AD9431DN-24X manages RUs in a centralized manner and concurrently forwards service traffic, while the RUs only process radio signals. The hierarchical design makes the network structure clearer and reduces the processing burden on the AD9431DN-24X and RUs, improving efficiency and optimizing the overall wireless forwarding performance.

    Basic Specifications

    Hardware specifications

    Item AD9431DN-24X
    Physical specifications Dimensions
    (W x D x H)
    442 mm x 310 mm x 43.6 mm
    Weight 4.3 kg
    Power specifications Power input 100 V AC to 24 V AC
    Power output 24-port standard PoE+ output
    Environmental specifications Operating temperature 0°C to +45°C
    Storage temperature –40°C to +70°C
    Operating humidity 5% to 95% (non-condensing)
    Altitude –60 m to +5,000 m
    Atmospheric pressure 70 kPa to 106 kPa
    Performance specifications Forwarding capability 24  Gbit/s
    Interface type 4 uplink 10 * GE interfaces
    24 downlink GE electrical interfaces (PoE+ OUT)
    Maximum number of users Maximum number of associated users: 4096
    Maximum number of concurrent users: 1024
    Number of managed RUs Directly connected RUs: 24 (a maximum of 12 R250D-E in PoE out power supply mode)
    RUs connected through a switch: 48

    Software specifications

    Item Description
    WLAN features Layer 2 network between the AD9431DN-24X and RUs
    Direct connection between the AD9431DN-24X and RUs
    Space time block code (STBC)
    Low-density parity-check (LDPC)
    Data unit aggregation, including A-MPDU (Tx/Rx) and A-MSDU (Rx only)
    802.11 Dynamic Frequency Selection (DFS)
    Short Guard Interval (GI) in 20 MHz, 40 MHz, and 80 MHz modes
    Priority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to implement priority-based data processing and forwarding
    Automatic and manual rate adjustment (the rate is adjusted automatically by default)
    WLAN channel management and channel rate adjustment
    Automatic channel scanning and interference avoidance
    Service Set Identifier (SSID) hiding, support for SSIDs in Chinese
    Signal Sustain Technology (SST)
    Unscheduled Automatic Power Save Delivery (U-APSD)
    Control and Provisioning of Wireless Access Points (CAPWAP) in Fit AP mode
    Automatic login in Fit AP mode
    Extended Service Set (ESS)
    Multi-user CAC
    Network features Compliance with IEEE 802.3ab
    Auto-negotiation of the rate and duplex mode; automatic switchover between the Media Dependent Interface (MDI) and Media Dependent Interface Crossover (MDI-X)
    SSID-based VLAN assignment
    4,094 VLAN IDs (1 to 4,094)
    Management channel of the AP uplink port in tagged and untagged mode
    DHCP client, obtaining IP addresses through DHCP
    Tunnel forwarding and direct forwarding
    STA isolation in the same VLAN
    Access control lists (ACLs)
    Link Layer Discovery Protocol (LLDP)
    Uninterrupted service holding upon CAPWAP link disconnection
    Unified authentication on the AC in Fit AP mode
    AC dual-link backup in Fit AP mode
    IPv6 in Fit AP mode
    QoS features Priority mapping and packet scheduling based on a WMM profile to implement priority-based data processing and forwarding
    WMM parameter management for each radio
    WMM power saving
    Priority mapping for upstream packets and flow-based mapping for downstream packets
    Queue mapping and scheduling
    User-based bandwidth limiting
    Adaptive bandwidth management (the system dynamically adjusts bandwidth based on the number of users and radio environment to improve user experience)
    Support for Microsoft Lync APIs and high voice call quality through Lync API identification and scheduling
    Airtime scheduling
    Security features Open system authentication
    WEP authentication/encryption
    WPA/WPA2-PSK authentication and encryption
    WPA/WPA2-802.1x authentication and encryption
    WPA-WPA2 authentication
    WAPI authentication and encryption
    WIDS including rogue AP and STA detection, attack detection, STA/AP blacklist and whitelist
    802.1x authentication, MAC address authentication, and Portal authentication
    802.11w Protected Management Frames (PMFs)
    Application identification
    Maintenance features Unified management and maintenance on the AC in Fit AP mode
    Plug-and-Play (PnP): automatic ally going online and loading configurations in Fit AP mode
    Batch upgrade in Fit AP mode
    STelnet using SSH v2
    SFTP using SSH v2
    Local AP management through the serial interface
    Real-time configuration monitoring and fast fault location using the NMS
    System status alarm
    The AP supports bring your own device (BYOD) only in Fit AP mode
    • Identifies the device type according to the Organizationally Unique Identifier (OUI) in the MAC address.
    • Identifies the device type according to the User Agent (UA) information in an HTTP packet
    • Identifies the device type according to DHCP options.
    • The RADIUS server delivers packet forwarding, security, and QoS policies according to the device type carried in the RADIUS authentication and accounting packets.
    Locating Service NOTE
    The AP supports the locating service only in Fit AP mode.
    • Locates tags manufactured by AeroScout or Ekahau.
    • Locates Wi-Fi terminals.
    • Works with eSight to locate rogue devices.
    Spectrum analysis NOTE
    The AP supports spectrum analysis only in Fit AP mode.
    • Identifies interference sources such as baby monitors, Bluetooth devices, digital cordless phones (at 2.4 GHz frequency band only), wireless audio transmitters (at both the 2.4 GHz and 5 GHz frequency bands), wireless game controllers, and microwave ovens.
    • Works with Huawei eSight to locate and perform spectrum analysis on interference sources.

    Standards compliance

    Item Description
    Safety standards UL 60950–1
    IEC 60950–1
    EN 60950–1
    GB 4943
    Radio standards ETSI EN 300 328
    ETSI EN 301 893
    China's SRRC document [2002] No. 353
    China's SRRC document [2002] No. 227
    China's SRRC document [2002] No. 277
    China's SRRC document [2012] No. 620
    EMC standards EN 301 489–1
    EN 301 489–17
    ETSI EN 60601-1-2
    YD/T 1312.2-2004
    ITU k.21
    GB 9254
    GB 17625.1
    EN 55022
    IEEE standards IEEE 802.11a/b/g
    IEEE 802.11n
    IEEE 802.11ac
    IEEE 802.11h
    IEEE 802.11d
    IEEE 802.11e
    IEEE 802.11k
    IEEE 802.11u
    IEEE 802.11v
    IEEE 802.11w
    Security standards 802.11i, Wi-Fi Protected Access 2(WPA2), WPA
    Advanced Encryption Standards (AES), Temporal Key Integrity Protocol (TKIP), and
    EAP Type (s)
    Environmental standards ETSI 300 019-2-1
    ETSI 300 019-2-2
    ETSI 300 019-2-3
    ETSI 300 019-1-1
    ETSI 300 019-1-2
    ETSI 300 019-1-3
    EMF CENELEC EN 62311
    CENELEC EN 50385
    RoHS Directive 2002/95/EC & 2011/65/EU
    Reach Regulation 1907/2006/EC
    WEEE Directive 2002/96/EC & 2012/19/EU

    Professional service and support

    Huawei’s WLAN planning tools deliver expert network design and optimization services using the most professional simulation platform in the industry. Backed by fifteen years of continuous investment in wireless technologies, extensive network planning and optimization experience, and rich expert resources, Huawei helps customers:

  • Design, deploy, and operate a high-performance network that is reliable and secure.
  • Maximize their return on investment and reduce operating expenses.
  • More Information

    For more information, please visit or contact your local Huawei office.