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  8. Input Expansion Module
  9. Input Expansion Module
    Dahua

    Input Expansion Module

    Stock Code: ARM808-RS

    Adds 8 inputs and 2 outputs to an alarm panel over RS-485.
    An input expansion module that connects to the alarm control panel over an RS-485 line. It carries 8 channels of alarm input and 2 channels of alarm output and takes its address from a DIP switch. It runs on 12 VDC and consumes 1.2 W.
    8 channelsAlarm input
    2 channelsAlarm output
    RS-485Communication
    30 VDC / 500 mAOutput capacity
    12 VDCPower supply
    -10 °C to +55 °COperating Temperature
    Key features
    Inputs and outputsCarries 8 channels of alarm input and 2 channels of alarm output; the outputs handle a 30 VDC / 500 mA load.
    Zone terminationsRecognizes NC, NO, 1EOL, 2EOL, and 3EOL terminations and works with 2K7, 4K7, and 6K8 EOLR values.
    AddressingA DIP switch sets the address, using 0-15 on the ARC9 and ARC2 series and 1-8 on the ARC3008.
    Output modeA jumper switches the alarm output between NO and NC.
    RS-485 lineRuns a link up to 300 m long on RVV2 × 1.5 cable.
    Power and environmentConsumes 1.2 W at 12 VDC and works between -10 °C and +55 °C at 10%-90% relative humidity.
    Technical Specification
    Port
    Alarm Input8
    Alarm Output2
    Communication (RS-485)1, up to 300 m (984.25 ft), RVV2×1.5 cable
    Device Address0–15 (ARC9 series, ARC2 series); 1–8 (ARC3008)
    Zone TerminationsNC, NO, 1EOL, 2EOL, 3EOL, INERTIAL (ARC3008), IMPULSE (ARC3008)
    EOLR2K7, 4K7, 6K8
    Alarm Output ModeSwitch between NO and NC with jumper
    Output Capacity30 VDC / 500 mA
    UpdateRemote update by client software
    General
    Power Supply12 VDC
    Power Consumption1.2 W
    Operating Temperature-10°C ~ +55°C (+14°F ~ +131°F)
    Operating Humidity10% ~ 90% (RH)
    Product Dimensions90.0 mm × 62.0 mm × 12.6 mm (3.54" × 2.44" × 0.5") (L × W × H)
    Net Weight≤ 1 kg (2.20 lb)

    Datasheet

    ARM808-RS

    12/18/2026

    Kullanım Kılavuzu

    ARM808-RS

    12/18/2026

    Teknik Çizim

    ARM808-RS

    12/18/2026

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