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  8. Alarm Expansion Module
  9. Alarm Expansion Module
    Dahua

    Alarm Expansion Module

    Stock Code: ARM982-P

    Adds 8 zone inputs and 2 relay outputs to a wired alarm panel.
    An expansion module that connects to an alarm control panel. It carries 8 channels of digital input and 2 channels of relay output, and reaches alarm keyboards and other I/O modules over its RS-485 lines. It accepts standard PoE or 12 VDC power and works in indoor panels.
    8 channelsAlarm input
    2 channelsRelay output
    2-channel RS-485Serial communication
    12 VDC / PoEPower supply
    1024Offline event cache
    -10 °C to +55 °COperating Temperature
    Key features
    Zone loop typesRecognizes 0EOL, 1EOL, 2EOL, and 3EOL loops and works with 2.7 K, 4.7 K, and 6.8 K EOLR values.
    Network connectionJoins the network over a 10 Mbps / 100 Mbps self-adaptive Ethernet port and accepts standard PoE power.
    RS-485 linesReaches alarm keyboards on A1/B1 and expansion I/O modules on A2/B2, and recognizes up to 4 keyboards and 4 modules.
    Offline recordingHolds up to 1024 alarm records in local memory when the panel connection drops.
    Tamper and maintenanceDetects case tampering, reports power status with a red indicator light, and supports remote updates.
    HousingThe 126.0 mm × 57.0 mm × 33.2 mm electro-galvanized sheet case fits indoor panels and draws 0.1 A.
    Technical Specifications
    Port
    Alarm Input8-channel digital input
    Alarm Output2-channel local relay output (≤30 VDC, 1 A, resistive load only)
    Network Port10 Mbps/100 Mbps self-adaptive Ethernet port, standard PoE
    RS-485Supports 2-channel RS-485 ports (A1/B1 for keyboards, A2/B2 for expansion modules)
    Function
    Indicator Light1, red power supply indicator
    Button1, for restoring the device to its factory settings
    Offline CacheMax. 1024 offline data
    Remote UpdateYes
    TamperCase tamper detection
    Technical
    ScenarioIndoors
    Operating Current<0.1 A
    General
    Power Supply12 VDC/PoE (802.3af)
    Operating Temperature–10 °C to +55 °C (+14 °F to +122 °F)
    Dimensions126.0 mm × 57.0 mm × 33.2 mm (4.96" × 2.24" × 1.31")
    WeightNet: 230 g (0.51 lb) / Gross: 386 g (0.85 lb)
    Casing MaterialElectro-galvanized sheet

    Datasheet

    ARM982-P

    12/17/2026

    Kullanım Kılavuzu

    ARM982-P

    12/17/2026

    ARM982-P

    12/17/2026

    Teknik Çizim

    ARM982-P

    12/17/2026

    ARM982-P

    12/17/2026

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