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  6. Dahua Wired&Wireless Alarm Column
  7. Dahua Wired&Wireless Alarm Column
    Dahua

    Dahua Wired&Wireless Alarm Column

    Stock Code: VTA8311A

    Puts an emergency caller straight through to the monitoring center
    An emergency alarm column that gathers the camera, the loudspeaker and the alarm button in one body. It reports alarms to two receiving centers at once and joins an existing network over DHCP, UPNP and NTP.
    2 MPResolution
    H.264 / H.265Video Compression
    30 WAudio output
    30 mIllumination range
    IPX5Protection Grade
    –30 °C ~ +65 °COperating Temperature
    Key features
    2MP
    Camera linkage
    It records video and takes snapshots on alarm and overlays OSD text on the web interface.
    2× RJ-45
    Ethernet ports
    Self-adaptive 10/100 Mbps ports report the alarm to two centers at once.
    30W
    Speaker and microphone
    The microphone picks up voice from 5 m away and opens two-way talk.
    30m
    IR illumination
    Day/night switching keeps the picture usable after dark.
    256GB
    Micro SD card
    The card slot holds recordings and the device keeps alarm and operation logs.
    110–240VAC
    Mains power
    It draws 20 W on standby and 55 W at full load.
    INSTALLATION AND USE
    One-press callIt connects the caller straight to the center, and the operator speaks over the loudspeaker.
    Easy network joinDHCP, UPNP and NTP support bring the column onto an existing network quickly.
    Tamper protectionA two-channel door detector triggers an alarm on housing tamper.
    Ports
    Alarm Input2
    Alarm Output2
    Network Port2 × RJ-45 10/100 Mbps self-adaptive Ethernet port
    Telephone Line1 × PSTN
    SIM Card SlotYes (4G is optional)
    RS-2321
    RS-4851 (supports accessing a dot-matrix display)
    Auxiliary Power Output1 × 12 V / 1 A
    SD Card Slot1 × Micro SD card slot (maximum 256 GB)
    Video & Audio
    Video CompressionH.264 / H.265
    Audio InputSupports 1 audio input channel with a maximum pickup distance of 5.0 m (16.40 ft)
    Supports accessing an external pickup.
    Audio OutputSupports 1 audio output channel with a maximum power of 30 W
    Supports accessing an active speaker.
    Audio CompressionG.711a / G.711U / PCM / G.726 / AAC
    Volume ControlYes
    Two-way AudioYes
    Field of ViewD: 105°
    H: 88°
    V: 44°
    Resolution704 × 480; 640 × 480; 1280 × 720; 1920 × 1080
    Frame Rate1–25 fps
    Illumination ModeIR illumination
    Illumination Range30 m (98.43 ft)
    Day/Night SwitchYes
    Function
    Indicator Light2 function indicators (alarm and alarm button)
    Button1 × alarm button
    External AccessoriesVertical pole
    Phone CallYes
    Video LinkageYes
    Camera Video and Snapshot LinkageYes
    OSD OverlayUp to 5 lines can be added with 60 English letters in each line on webpage
    Arm and DisarmArming/Disarming on webpage
    Remote UpdateYes
    Network ProtocolDHCP; UPNP; NTP
    FTP ServerYes
    Tamper2-channel door detector tamper alarm
    LogsStores up to 10,000 logs, including alarm events and operation logs
    Search for Remote Alarm EventYes
    General
    LanguageEnglish
    Power Supply110–240 VAC
    Power ConsumptionIdling: 20 W (without speakers)
    Full load: 55 W
    Operating Temperature–30 °C to +65 °C (–22 °F to +149 °F)
    Operating Humidity93% & +40 °C (+104 °F)
    Product Dimensions2,410 mm × 340 mm × 330 mm (94.88" × 13.38" × 12.99")
    Packaging Dimensions2,667 mm × 615 mm × 715 mm (105.00" × 24.21" × 28.15")
    Net Weight95 kg (209.44 lb)
    Gross Weight110 kg (242.51 lb)
    Installationfooting cage mount
    Casing MaterialGalvanized plate
    ProtectionIPX5

    Datasheet

    VTA8311A

    12/18/2026

    Kullanım Kılavuzu

    VTA8311A

    12/18/2026

    VTA8311A

    12/18/2026

    Teknik Çizim

    VTA8311A

    12/18/2026

    VTA8311A

    12/18/2026

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