Zigbee 3.0 coordinator and Thread router SMLIGHT SLZB-06U CC2652P PoE Ethernet Wi-Fi USB
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Zigbee 3.0 coordinator and Thread router SMLIGHT SLZB-06U
SMLIGHT SLZB-06U is a universal network gateway integrating support for Zigbee 3.0 and Thread (Matter over Thread) protocols within a modern home automation system. The device is based on the ESP32-S3 microcontroller and the Texas Instruments CC2652P radio chip with a transmit power of up to +20 dBm, equipped with an omnidirectional external antenna of +5 dB. It ensures reliable communication with Home Assistant, Zigbee2MQTT, and ZHA systems via Ethernet with PoE support, Wi-Fi, or USB interface.
Key features:
- Support for two wireless standards: Zigbee 3.0 coordinator and Thread router with Matter over Thread support.
- Efficient Texas Instruments CC2652P radio chip with TI Z-Stack and transmit power up to +20 dBm.
- Hardware flow control (HW flow control CTS/RTS) in the "U" version, protecting against buffer overflow and packet loss.
- Three network communication options: stable Ethernet 10/100 Mb (WIZnet W5500 chip), Wi-Fi 2,4 GHz, and USB.
- Flexible power supply: Power over Ethernet (PoE IEEE 802.3af 48 V) or USB-C 5 V DC port.
- USB passthrough function (USB-over-IP) enabling remote sharing of USB serial devices (e.g., Z-Wave adapters) over a LAN network.
- SLZB-OS software with a web interface, OTA update support, VPN connections, and zHub autonomous mode.
- Configurable RJ45 port LEDs and independent status indicators for radio modules.
Multi-protocol connectivity and smart home integration
The SLZB-06U adapter enables direct cooperation with popular automation platforms such as Home Assistant (via ZHA and OpenThread Border Router integrations) or Zigbee2MQTT. The zHub autonomous mode built into the SLZB-OS software allows for pairing and basic control of Zigbee devices directly from the adapter's built-in web page, without the need to run an external server.
Improvements in the "U" edition and USB-over-IP mode
The SLZB-06U version has been enhanced with hardware flow control for the radio chip, which guarantees stable frame transmission in dense mesh networks. In USB connection mode with a computer, the device provides a dual CDC serial port. Additionally, the USB passthrough function allows data from peripherals connected to the USB port to be transmitted directly over the Ethernet network, eliminating the need for additional serial port servers.
Technical specification
- Model: SLZB-06U
- Main chip: Espressif ESP32-S3
- Radio chip: Texas Instruments CC2652P
- Radio chip memory: 704 kB Flash, 144 kB + 8 kB RAM
- Transmit power: up to +20 dBm
- Supported protocols: Zigbee 3.0, Thread (Matter over Thread)
- Supported software: Zigbee2MQTT, Home Assistant ZHA, OTBR
- Firmware: SLZB-OS (version 2.9.7 or newer)
- Ethernet interface: 10/100 Mb/s (WIZnet W5500)
- Wireless connectivity: Wi-Fi 2,4 GHz, Bluetooth
- Zigbee/Thread antenna: external rotating +5 dB (SMA connector)
- Wi-Fi/Bluetooth antenna: integrated on PCB (+2 dB)
- Power supply: PoE IEEE 802.3af (48 V) or USB-C (5 V DC)
- Power consumption: ≤ 1,5 W
- Adapter dimensions: 160 × 24 × 28 mm (weight 86 g)
- Operating conditions: temperature from +5°C to +35°C, humidity < 60%
Kit contents
- SMLIGHT SLZB-06U network gateway (1 pcs.)
- External omnidirectional antenna +5 dB (1 pcs.)
- Mounting kit: 2× screw, 2× adhesive pad
- Allen key for mounting screws (1 pcs.)
- Card with QR code for online documentation (1 pcs.)
- Adhesive tape with mounting scale (1 pcs.)
Frequently Asked Questions (FAQ)
- Can the adapter be powered simultaneously from PoE and USB-C?
No. You should use only one power source at a time: the PoE 48 V Ethernet port or the USB-C 5 V DC connector. - What is the USB-over-IP (USB passthrough) function?
It allows you to connect an external USB device (e.g., a Z-Wave network adapter) to the gateway's USB port and transmit data to the automation system via Ethernet or Wi-Fi. - What does hardware flow control (HW flow control) mean in the "U" version?
RTS/CTS signals hardware-pause data transmission if the receiver buffer is full, which protects against losing Zigbee and Thread packets. - Does the device require an external server to operate?
The gateway is optimized for working with Home Assistant and Zigbee2MQTT, however, the built-in zHub mode also allows for direct pairing and simple control of devices from a web browser.
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