Overview
The AWT200-HPLC Power Line Carrier Communication Module is a gateway based on HPLC (High-Speed Power Line Communication) technology, utilizing the most ubiquitous power lines as the data transmission medium. It features RS485 communication interfaces and requires at least two modules for operation: one connects to the data acquisition device via RS485, and both modules are connected to the same power line. The other module’s RS485 interface can then collect or transmit data to the user’s equipment. This enables long-distance data transmission over existing power lines without additional signal wiring, significantly reducing upgrade and renovation costs.
Highlight
Power Line Communication
- Based on HPLC technology
- Uses existing AC220V power lines
- No additional signal wiring
- Covers wide area with power grid
- Ideal for retrofit projects

Flexible Transparent Transmission
- Simple transparent mode
- 1-15 level relay support
- Network-isolated transmission
- Eliminates information interference
- User-configurable via software

Industrial Grade Design
- Operating temp -20~60℃
- Storage temp -40~85℃
- ≤95% RH non-condensing
- High EMC immunity (Level 4)
- Flame-retardant housing

Easy Configuration
- Dedicated RS485 config port
- User-friendly PC software
- Simple parameter settings
- Real-time operation feedback
- Quick deployment

Function
| Feature | Description |
| HPLC Communication | Utilizes HPLC technology with modulation modes: BPSK/QPSK/8QAM/16QAM; Frequency band: 2MHz-12MHz; Data rate: 150Kbps-3.12Mbps; Receiving sensitivity: ≤0.125μVrms. |
| Transparent Transmission | Supports simple transparent mode; 1-15 level relay; Network-isolated transmission on designated networks to eliminate interference. |
| Data RS485 Interface (A1/B1) | Connects to devices for data acquisition or control; Configurable baud rate (2400-38400), parity (odd/even/none), data bits (7/8), stop bits (1/2/1.5). |
| Configuration RS485 Interface (A2/B2) | Dedicated configuration port (fixed 9600bps, no parity, 8 data bits, 1 stop bit); Connects to PC via USB-485 converter for parameter setup. |
| Power Line Interface (L/N) | AC220V power input and carrier communication interface; Multiple modules connect to same power line for networking. |
| Parameter Configuration | PC software “DTU debugging software” allows setting data interface parameters and HPLC parameters; Real-time operation feedback. |
| LED Indication | COM LED: green flashing indicates normal startup; Green flashing with red-green double flash indicates normal carrier communication. |
| Relay Support | Supports up to 15 levels of relay for extended communication distance. |
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Specification
| Parameter | Value |
| Power Supply | AC220V, 45Hz-60Hz |
| Power Consumption | ≤10W |
| Data RS485 Interface (A1/B1) | Baud rate: 2400, 4800, 9600, 19200, 38400; Parity: odd/even/none; Data bits: 7/8; Stop bits: 1/2/1.5 |
| Configuration RS485 Interface (A2/B2) | Baud rate: 9600; Parity: none; Data bits: 8; Stop bits: 1 |
| Carrier Communication Interface (L/N) | Modulation: BPSK/QPSK/8QAM/16QAM; Frequency band: 2MHz-12MHz; Receiving sensitivity: ≤0.125μVrms; Data rate: 150Kbps-3.12Mbps |
| Withstand Voltage | Power terminal to communication terminal: 2kV AC, 50Hz |
| Insulation Resistance | ≥100MΩ (normal atmospheric conditions) |
| Glow Wire Test | Terminals: 960°C±100°C; Housing: 650°C±100°C |
| ESD Immunity | Level 3 (Contact discharge 6kV, Air discharge 8kV) |
| EFT Immunity | Level 4 (Power port to ground: 4kV peak, 5kHz/100kHz) |
| Surge Immunity | Level 4 (Power port to ground: differential mode ±2kV, 5 tests, 60s interval) |
| Operating Temperature | -20°C ~ +60°C |
| Storage/Transport Temperature | -40°C ~ +85°C |
| Relative Humidity | ≤95% RH, non-condensing |
| Altitude | ≤2500m |
| Mounting | DIN35mm rail |
| Dimensions | See manual for detailed dimensions |
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FAQ
At least two modules are required. Both modules must be connected to the same AC220V power line to establish carrier communication.
A1/B1 is the data interface for connecting to user devices (meters, PLCs, etc.) for data acquisition. A2/B2 is the dedicated configuration interface for connecting to a PC to set parameters.
Connect the A2/B2 interface to a PC via a USB-485 converter, open the “DTU debugging software,” select “AWT200 Series” and “HPLC,” set the correct COM port and baud rate (9600), then configure parameters such as data interface baud rate, parity, etc.
The communication distance depends on power line conditions. With up to 15 levels of relay support, it can cover long distances across the power grid.
Check if the L/N terminals are properly connected and the screws are tightened. Verify the power line voltage is around AC220V. If the issue persists, contact your local agent or after-sales service.
Yes, it features high EMC immunity (Level 4 for EFT and Surge) and wide operating temperature range, ensuring reliable operation in industrial environments with electrical noise and disturbances.
Summary
The AWT200-HPLC Power Line Carrier Communication Module offers a unique solution for data transmission over existing AC220V power lines using HPLC technology. By eliminating the need for additional signal wiring, it significantly reduces installation costs and complexity, especially in retrofit projects. With two RS485 interfaces—one for data acquisition and one for configuration—it provides flexibility and ease of use. The module supports multiple transparent transmission modes, up to 15 levels of relay, and robust industrial-grade specifications including high EMC immunity and wide temperature operation. Ideal for power system data acquisition, smart metering, and industrial monitoring, the AWT200-HPLC enables reliable communication wherever power lines reach, making it a cost-effective choice for applications where new wiring is impractical or expensive.

