SMLIGHT SLZB-MR3U

SMLIGHT SLZB-MR3U
The SMLIGHT SLZB-MR3U serves as a central hub for managing your smart home and connecting wireless devices within open systems. The network coordinator integrates Zigbee and Thread protocols, creating a bridge for communication between sensors, lighting, and other elements in your home network. The device supports the simultaneous operation of both protocols and eliminates dependence on solutions from a single manufacturer. Integrating hardware platforms lets you manage modern wireless networks in houses, flats, and multi-storey buildings.
Key features of the SMLIGHT SLZB-MR3U bridge
- Two independent chips ensure simultaneous operation of Zigbee 3.0 and Thread networks
- Powered via PoE 48V (802.3af standard) or USB-C port
- Two external SMA antennas with 5dB gain extend the wireless signal range
- Transmission power reaches up to +20dBm thanks to built-in amplifiers
- SLZB-OS system offers web administration, local API, and MQTT integration
- USB passthrough function allows connection of USB peripherals over Ethernet
- The device works with Home Assistant, Zigbee2MQTT, and ZHA platforms
Dual-chip architecture
The design features independent Texas Instruments CC2674P10 and Silicon Labs EFR32MG24 hardware platforms. This hardware combination enables the concurrent operation of a Zigbee 3.0 network and a Thread network within a single physical device. An integrated ESP32-S3 processor complements the wireless communication, handling the 2.4GHz Wi-Fi and Bluetooth interfaces.
Power options
The device offers flexible power options to suit specific installation conditions. Users can opt for standard power via a 5V USB-C port or professional power over an Ethernet cable (PoE) at 48V, compliant with the 802.3af standard. The 100Mbps Ethernet connection contributes to stable data transmission without the risk of wireless signal interference.
SLZB-OS operating system
The pre-installed SLZB-OS system provides a complete software backend for managing and configuring the coordinator. The web interface displays detailed system logs, diagnostic data, and the status of individual radio modules. System administrators have access to a local API, MQTT protocol integration, and the ability to perform over-the-air (OTA) firmware updates.
High RF performance
Signal transmission is handled by two external 5dB gain antennas, which connect via standard SMA connectors. Power amplifiers for both radio chips increase the transmission power up to +20dBm. This hardware setup improves mesh network stability and extends radio coverage in multi-storey buildings and complex spaces.
Network bridge function
The device supports USB passthrough mode, also known as USB-over-IP, for remote sharing of hardware dongles. A connected USB peripheral can be made accessible on the local network via Ethernet to the parent system. In standard USB mode, both internal radio modules are recognised as separate CDC-type serial devices, which simplifies integration with other smart home components.
Wide system compatibility
The hardware coordinator works with the most popular open-source platforms for smart homes. The device is fully compatible with Home Assistant, the Zigbee2MQTT software package, ZHA integration, and the OpenThread Border Router tool. This simplifies integration into Matter-over-Thread ecosystems without needing to use cloud services.
Package contents:
1× SLZB-MRxU device, 2× external antennas, 2× double-sided adhesive tapes, 2× screws, 1× screwdriver, 1× QR manual + screw helper
Intended use:
Central unit
Supported OS:
Android, Windows, iOS
Power:
PoE 48V (802.3af) or USB-C 5V
Connection:
Bluetooth, WiFi 2.4GHz, Ethernet
Protocol:
Zigbee 3.0, Thread, Matter-over-Thread, Wi-Fi, Bluetooth
RF performance:
Up to +20dBm, PA amplifiers for both radio chips
Radios / SoC:
TI CC2674P10 (Zigbee/Thread), SiLabs EFR32MG24 (Thread/Matter-over-Thread), ESP32-S3 (Wi-Fi 2.4GHz), ESP32-S3 (Bluetooth)
Specifications
Connectivity
Connection
Use
Usage
Features
Dimensions and weight
hascon s.r.o., Bottova 10, 900 25 Chorvátsky Grob, Slovensko, [email protected], +421 903 554 450
Specifications can be changed without notice. Images are for illustrative purposes only.

