CHINT SMG-WSR Smart Gateway,
is an advanced Open Protocol Gateway that enables seamless communication between CHINT smart devices and third-party IoT platforms.
Supporting Wi-Fi upstream via MQTT and RS-485 downstream via Modbus RTU,
furthermore it allows real-time data exchange, remote monitoring,
and control of NB2 smart circuit breakers and other Modbus devices.
in addition With plug-and-play installation, open communication protocols,
finally cloud connectivity, the SMG-WSR offers reliable integration for smart power management and energy monitoring systems.
- first Function: Open Protocol Gateway for smart electrical system integration
- second Upstream Communication: Wi-Fi (MQTT Protocol, JSON structure)
- next Downstream Communication: RS-485 (Modbus RTU)
- Supported Devices: NB2 Smart Circuit Breakers and Modbus-compatible devices
- then Power Supply: DC 12 V (via CHINT PSU-3 power unit)
- afterward Communication Interface: RS-485 with cascade connection support
- subsequently Data Upload Frequency: Default 5-minute reporting interval
- specifically Protocol: MQTT V3.1.1 or higher
- Configuration Mode: Web-based interface via hotspot “SMG-OPEN-XXXX” (access IP 192.168.4.1)
- also Auto Networking: Automatic NB2 device detection and registration
- furthermore Status Indicators:
- Work (Red): System operation status
- IoT (Blue): Network and MQTT connection status
- COM1: RS-485 communication (Send/Receive indicator)
- Operating Temperature: −5 °C to +40 °C
- but Mounting: DIN-rail installation
- Reset & Configuration Control: Multi-function button (1s/7s/15s operation)
- Dimensions: Compact modular format suitable for power distribution boards
- likewise Platform Compatibility: User-defined local or cloud MQTT server
- finally Applications: Smart buildings, energy management, industrial monitoring, and remote facility control
