RCM-G24 GSM Remote Control Module

Figure 1: General view of the RCM-G24 GSM Module

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  • Manual v1.0 | 2023

    RCM-G24
    GSM Control & Monitoring

    01. Description

    The RCM-G24 is a versatile GSM-based remote control and monitoring module. It allows users to control electrical equipment and monitor sensor states via SMS or phone calls from anywhere covered by a GSM network.

    Equipped with 4 digital inputs and 2 relay outputs, it is ideal for managing heating systems, ventilation, security gates, and industrial equipment. It supports configuration via a specialized Android application over Bluetooth.

    02. Technical Specifications

    ParameterValue / Detail
    Supply Voltage12V...24V DC
    GSM NetworkQuad-band (850/900/1800/1900 MHz)
    SIM Card SlotMicro-SIM
    Digital Inputs4 (Optically isolated)
    Relay Outputs2 (5.0A @ 250VAC)
    User CapacityUp to 100 authorized numbers
    ConfigurationBluetooth (RCM-Config App)
    DimensionsCompact form factor for DIN rail cases

    03. Wiring & Connections

    Power Supply

    Connect a 12-24V DC power source to the VIN and GND terminals. Ensure the SIM card is inserted before powering on the device.

    Relay Output Logic

    The module features two independent relay groups. Each relay has Changeover (CO) contacts (NC1, COM1, NO1 and NC2, COM2, NO2).

    Digital Inputs

    Four optically isolated inputs (IN1-IN4) can be used to monitor the status of sensors or external circuits. These can trigger SMS alerts when the state changes.

    GSM Antenna

    Ensure the GSM antenna is securely connected to the SMA/IPX connector and placed outside metal enclosures for optimal signal strength.

    04. Typical Applications

    Gate & Barrier Control

    Control gates for free via "Authorized Call." The module recognizes the caller ID and activates the relay without answering the call.

    Heating & Ventilation

    Remotely toggle boilers or fans via SMS commands. Useful for pre-heating seasonal homes or monitoring system failures.

    05. Connection Points

    TerminalFunction
    VIN / GND12-24V DC Power Input
    IN1 - IN4Digital Alarm/Monitor Inputs
    COM / NO / NCRelay 1 & 2 Contact Sets
    ANTGSM Antenna Connector