SMLIGHT SLZB-MR1 Zigbee Thread Multiradio CC2652P7 EFR32MG21 LAN PoE USB Wi-Fi

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Article description:

Multiradio Gateway for Zigbee 3.0 / Thread (Matter) with LAN/PoE Support

The SLZB-MR1 is SMLIGHT’s advanced new coordinator combining the powerful CC2652P7 and EFR32MG21 chips in a single device, offering full support for both Zigbee and Thread networks. Designed for seamless integration with Zigbee2MQTT and ZHA, the SLZB-MR1 delivers unmatched flexibility for your smart home setup.

Whether you want to build a pure Zigbee network, experiment with Matter over Thread, or enjoy the freedom to switch between ecosystems, this multiradio coordinator brings it all together in one powerful solution.

Multiradio Connectivity kombiniert Zigbee und Thread in einem Gerät und ist ideal für Matter und flexible Integrationen.

Dual Radio Architecture mit CC2652P7 (Zigbee) und EFR32MG21 (Thread) ermöglicht parallelen Betrieb bei korrekter Kanalwahl.

Versatile Connectivity unterstützt Ethernet (LAN) mit PoE (IEEE 802.3af), USB-C und Wi-Fi und eignet sich perfekt für flexible Installationen sowie stabile Strom- und Datenversorgung über das Netzwerk.

Smart Home Optimization macht das Gerät ideal für hybride Setups mit Zigbee- und Thread-Geräten in einem System.

Stable 2.4 GHz Performance sorgt für zuverlässige Funktion bei richtig zugewiesenen Kanälen (Koexistenz).

Energy-Efficient, Compact Design ist lüfterlos, platzsparend und effizient für den Dauerbetrieb.

USB Plug & Play ermöglicht einfachen Anschluss an Home Assistant Geräte oder Server via USB.

Firmware Updates werden über USB und OTA (plattformabhängig) unterstützt.

Compact Size von nur 22 mm Breite ist ideal für enge Einbauorte.

Where the SLZB-MR1 Design Comes From

Zigbee and Thread—alongside other widely used smart home and IoT protocols like Z-Wave, Wi-Fi, and Bluetooth—are essential components of modern ecosystems. Many users build their smart home environments using a combination of these protocols. However, managing such a diverse infrastructure often requires multiple dedicated devices: for example, a Zigbee coordinator for Zigbee networks and a Thread Border Router for Thread.

While some commercial solutions support Zigbee and Thread simultaneously, they are usually tied to specific manufacturers or ecosystems. Many of these Zigbee + Thread hubs are available on the market, but their vendor lock-in significantly limits flexibility and user choice—despite demonstrating that it is technically feasible to combine Zigbee and Thread radios in the same device.

With the SLZB-MRx series, we aim to change that. Our goal is to provide smart home enthusiasts and developers with a multi-radio device that offers native, vendor-independent access to both Zigbee and Thread. "MR" stands for MultiRadio—this series allows users to freely choose their preferred ecosystem and integration strategy while fully leveraging the possibilities of open-source software and platforms.

Zigbee & Thread Coexistence – And It Already Works!

Note on operating multiple 2.4 GHz networks within the same device:

It is absolutely legitimate to run Zigbee and Thread radios in the same device—many smart home hubs already demonstrate this, as various brands and models support multiple protocols simultaneously.

These devices combine several protocols (Zigbee, Thread, Wi-Fi, Bluetooth) within a single enclosure, typically using multiple SoCs.

When set up properly—by assigning different channels for Zigbee and Thread—both radio modules can operate reliably and stably.

Conclusion: Multi-radio is the future—and it’s already here. In addition to existing solutions, the SLZB-MR1 now makes it flexible and easy to use.

Specifications:

Model No.: SLZB-MR1

Radio Chip 1: Texas Instruments CC2652P7

Zigbee Support (TI): Zigbee 3.0 (compatible with Zigbee2MQTT & ZHA)

Thread Support (TI): Matter-over-Thread (Open Thread Border Router)

Primary Use (TI): Ideal for Zigbee, also suitable for Thread

Transmit Power (TI): +20 dBm (with PA)

RAM / Flash (TI): 144 kB + 8 kB RAM, 704 kB Flash

Radio Chip 2: Silicon Labs EFR32MG21

Zigbee Support (EFR): Zigbee 3.0 (compatible with Zigbee2MQTT & ZHA)

Thread Support (EFR): Matter-over-Thread (Open Thread Border Router)

Primary Use (EFR): Ideal for Thread, also suitable for Zigbee

Transmit Power (EFR): +20 dBm

RAM / Flash (EFR): 96 kB RAM, 1024 kB Flash

Supported Protocols: Zigbee 3.0, Thread, Wi-Fi

Concurrent Zigbee & Thread Operation: Yes, simultaneous or switchable

Interfaces:

USB-C: For data and power supply

Ethernet: Yes

Firmware Support:

Radio Firmware: Updatable via web interface

Ember/EZSP Compatibility: Yes, for EFR32MG21

SLZB-OS Compatibility: Yes (from version 2.6.8dev26 and 2.8.3)

SLZB-OS Features: VPN, multilingual interface, scripting, network settings, security, dashboard, zHub mode, mode switching, OTA updates

Antennas:

External Antenna Ports: 2× SMA (one per radio)

Integrated Antenna: For Wi-Fi and Bluetooth

Included Antennas: 2× high-performance 2.4 GHz antennas

Power Supply:

PoE: Yes, 48 V PoE

USB-C: 5 V DC

Power Consumption: Up to 1.5 W (with active SoCs)

Enclosure:

Material: ABS, durable with ventilation

Mounting Options: DIN rail, wall mounting, adhesive pads, screw set including screwdriver and ruler

Status LEDs & Buttons:

Service LEDs: 6 LEDs (2× Core, 2× CC2652P, 2× EFR32)

Multibutton: Supports multiple functions (mode switching, reset, etc.)

1x SLZB-MR1 Multiradio LAN PoE USB Wi-Fi Adapter

2x 2,4GHz Antennas

Mounting Accessories: Screws and double-sided adhesive pad

For PoE usage, a compatible PoE power supply and a suitable network cable are required (not included in the package).