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

    Dahua Wired&Wireless Alarm Column

    Stock Code: VTA8311AB

    Opens an emergency call at one press and carries video and voice to the center
    An emergency alarm column with the camera, the loudspeaker and the alarm button built into a single body. It reports an alarm to two receiving centers at the same time and opens two-way voice talk with the operator.
    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
    A high-sensitivity microphone picks up voice from 5 m away.
    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 its logs on board.
    110–240VAC
    Mains power
    It draws 20 W when idle and 55 W at full load.
    INSTALLATION AND USE
    Talk to the centerIt connects the caller straight to the center; the operator answers over the loudspeaker and broadcasts announcements.
    PSTN backupThe built-in PSTN module also places calls over a landline.
    Camera and LED expansionThe column supports PTZ cameras, bullet cameras and LEDs.
    Ports
    Alarm Input2
    Alarm Output2
    Network Port2 × RJ-45 10/100 Mbps self-adaptive Ethernet
    Telephone Line1 × PSTN
    SIM Card SlotYes (4G optional)
    RS-2321
    RS-4851 (supports dot-matrix display)
    Auxiliary Power Output1 × 12 V / 1 A
    SD Card Slot1 × Micro SD (max. 256 GB)
    Video & Audio
    Video CompressionH.264 / H.265
    Audio Input1 channel, 5 m pickup distance, supports external microphone
    Audio Output1 channel, max. 30 W, supports 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 Distance30 m
    Day / NightYes
    Functions
    Indicator Light2 pcs (alarm & alarm button)
    Button1 × alarm button
    External AccessoryVertical pole
    Phone CallYes
    Video LinkageYes
    OSDUp to 5 lines, 60 characters per line via web interface
    Arm / DisarmVia web
    Remote UpdateYes
    FTP ServerYes
    Tamper Alarm2-channel door detector
    Log Records10,000 records
    General
    LanguageEnglish
    Power Supply110–240 VAC
    Power ConsumptionIdle: 20 W
    Full load: 55 W
    Operating Temperature–30 °C ~ +65 °C
    Operating Humidity93% @ +40 °C
    Product Dimensions2410 × 340 × 330 mm
    Package Dimensions2667 × 615 × 715 mm
    Net Weight95 kg
    Gross Weight110 kg
    InstallationCage footing mount
    Casing MaterialGalvanized steel sheet
    ProtectionIPX5

    Datasheet

    VTA8311AB

    12/18/2026

    Kullanım Kılavuzu

    VTA8311AB

    12/18/2026

    VTA8311AB

    12/18/2026

    Teknik Çizim

    VTA8311AB

    12/18/2026

    VTA8311AB

    12/18/2026

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