1. Giới thiệu
The SAMOTECH SM308-2CH is a compact and powerful 2-gang Zigbee retractable switch module designed to integrate seamlessly into your smart home ecosystem. Based on the latest Zigbee 3.0 protocol, this module allows you to control two separate lighting circuits or electrical loads, offering advanced features such as active power and energy measurement. It is fully compatible with popular Zigbee gateways like Philips Hue, Home Assistant, HomeKit, SmartThings, and Hubitat, providing flexible control options for your connected devices.

Figure 1: SAMOTECH SM308-2CH 2-Gang Zigbee Retractable Switch Module
2. Tính năng sản phẩm
- Giao thức Zigbee 3.0: Utilizes the latest Zigbee 3.0 standard for reliable and secure communication.
- Đầu ra kênh đôi: Controls two independent circuits with a maximum load of 5.1A per channel.
- Khả năng tương thích rộng: Fully compatible with Philips Hue, Home Assistant, HomeKit, SmartThings, Hubitat, and other Zigbee 3.0 gateways.
- Hỗ trợ tải: Supports both resistive and capacitive loads.
- Touchlink Commissioning: Supports Touchlink for easy pairing.
- Self-Forming Network: Capable of forming a Zigbee network without a coordinator and adding other devices.
- Power & Energy Measurement: Provides active power and energy consumption data.
- Find and Bind Mode: Supports linking with Zigbee remote controls.
- Universal Switch Control: Can be controlled by a universal single-wire push switch, with each channel controllable separately.
3. Thông tin an toàn
Please read this manual carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or other injuries. Always consult a qualified electrician for installation if you are unsure.
- Ngắt kết nối nguồn: Ensure the main power supply is turned OFF at the circuit breaker before any installation or wiring work.
- Tậptage Khả năng tương thích: Verify that the module's operating voltage (AC 100-240V, 50/60Hz) matches your electrical system.
- Giới hạn tải: Do not exceed the maximum load ratings (Resistive: max. 5.1A/CH; Capacitive: max. 1.7A/CH) to prevent overheating and damage.
- Chỉ sử dụng trong nhà: This device is designed for indoor use in dry environments. Avoid exposure to moisture or extreme temperatures.
- Dây điện phù hợp: Follow the wiring diagrams precisely. Incorrect wiring can cause malfunction or safety hazards.
- Thông gió: Ensure adequate ventilation around the module, especially if installed in confined spaces.
4. Nội dung gói hàng
- 1 x SAMOTECH SM308-2CH 2-Gang Zigbee Retractable Switch Module
- 1 x Hướng dẫn sử dụng (tài liệu này)
5. Thông số kỹ thuật
| Thuộc tính | Giá trị |
|---|---|
| Số hiệu mẫu | SM308-2CH |
| Thương hiệu | CÙNG |
| Kích thước | 5.7 x 5.6 x 3.7cm |
| Cân nặng | 50 gram |
| Hoạt động Voltage | Điện áp xoay chiều 100-240V, 50/60Hz |
| Tải điện trở (Tối đa) | 5.1A/CH |
| Capacitive Load (Max) | 1.7A/CH |
| Loại liên hệ | Thường mở |
| Chế độ hoạt động | BẬT-TẮT-BẬT |
| Vật liệu | Nhựa |

Figure 3: Dimensions of SM308-2CH Module
6. Cài đặt và thiết lập
6.1 Sơ đồ đấu dây
CẢNH BÁO: Ensure power is OFF at the circuit breaker before proceeding with wiring. If you are not comfortable with electrical wiring, please consult a qualified electrician.
The SM308-2CH module has terminals for Line (L), Neutral (N), and two switch inputs (S1, S2) and two load outputs (L1, L2). Connect according to the diagram below:

Figure 2: Typical Wiring Diagram for SM308-2CH
- L: Live input from mains.
- N: Neutral input from mains.
- L1: Switched Live output for Load 1.
- L2: Switched Live output for Load 2.
- S1: Input for external switch 1 (connected to Live for control).
- S2: Input for external switch 2 (connected to Live for control).
6.2 Pairing with a Zigbee Gateway (e.g., Philips Hue)
Once the module is wired and power is restored, you can pair it with your Zigbee gateway:
- Ensure your Zigbee gateway (e.g., Philips Hue Bridge) is powered on and connected to your network.
- Open your Zigbee gateway's application (e.g., Philips Hue app).
- Navigate to the "Add Device" or "Add Light" section within the app.
- On the SM308-2CH module, locate the "Reset" button. Press the "Reset" button bốn lần quickly. The module's indicator light should start blinking, indicating it is in pairing mode.
- The app should detect the new device. For the SM308-2CH, it will typically appear as two separate "lights" or switches, one for each channel.
- Follow the on-screen prompts in your app to complete the pairing process and assign names to your new switches.
Note: For other Zigbee gateways (Home Assistant, SmartThings, Hubitat), the pairing process will be similar. Refer to your specific gateway's documentation for detailed instructions on adding new Zigbee devices.
6.3 Touchlink Commissioning
The module supports Touchlink for direct pairing with a Zigbee remote control without a gateway. To initiate Touchlink:
- Bring the Zigbee remote control within 10 cm of the SM308-2CH module.
- Initiate Touchlink on your remote control (refer to the remote's manual for specific instructions).
- The module and remote should pair directly, allowing the remote to control the module's outputs.
7. Hướng dẫn vận hành
Once installed and paired, the SAMOTECH SM308-2CH module can be operated in several ways:
- Via Zigbee Gateway App: Use your smart home app (e.g., Philips Hue, Home Assistant) to turn the connected lights or appliances ON/OFF for each channel independently.
- Điều khiển bằng giọng nói: If integrated with a voice assistant (e.g., Siri via HomeKit, Google Assistant, Alexa), you can use voice commands to control the connected devices.
- External Wall Switch: If wired to traditional wall switches (S1, S2 terminals), you can use these physical switches to toggle the connected loads ON/OFF.
- Zigbee Remote Control: If paired via Touchlink or the gateway, a Zigbee remote can directly control the module.
7.1 Power and Energy Monitoring
The SM308-2CH module provides active power and energy consumption data. This information can typically be viewed within your Zigbee gateway's application, allowing you to monitor the energy usage of the connected devices.
8. Bảo trì
The SAMOTECH SM308-2CH module requires minimal maintenance. Follow these guidelines to ensure optimal performance and longevity:
- Vệ sinh: Disconnect power before cleaning. Use a soft, dry cloth to wipe the module. Do not use liquid cleaners or aerosols.
- Môi trường: Ensure the module is installed in a dry, well-ventilated area, away from direct sunlight, heat sources, and moisture.
- Cập nhật chương trình cơ sở: Periodically check your Zigbee gateway's application for any available firmware updates for the module. Updates can improve performance and add new features.
- Kiểm tra thường xuyên: Occasionally inspect the wiring connections to ensure they are secure.
KHAI THÁC. Xử lý sự cố
| Vấn đề | Nguyên nhân có thể | Giải pháp |
|---|---|---|
| Module not pairing with gateway. |
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| Connected light/appliance not responding. |
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| Module frequently disconnects. |
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10. Bảo hành và Hỗ trợ
SAMOTECH products are designed for reliability and performance. For warranty information and technical support, please refer to the official SAMOTECH webhoặc liên hệ với nhà bán lẻ. Giữ lại hóa đơn mua hàng để yêu cầu bảo hành.
Để được hỗ trợ thêm, bạn có thể truy cập SAMOTECH store on Amazon hoặc liên hệ trực tiếp với bộ phận chăm sóc khách hàng của họ.





