Product Model
This four-channel RS485 to USB communication module is developed based on the high-performance multi-serial-port chip CH344Q, and is specifically designed for multi-node serial communication scenarios such as industrial automation, energy monitoring, and building control.
The module adopts a USB 2.0 Type-B interface, supports a communication baud rate of 1200bps~250kbps and CTS/RTS hardware automatic flow control. The design of drawing power directly from USB 5V eliminates the need for additional power supply, simplifying wiring and reducing costs.
Feature & Advantages
1. Plug and Play: Power is drawn from USB, no external power supply required;
2. High Safety: Dual-channel isolation + high voltage-withstand isolation protection;
3. Strong Environmental Adaptability: Equipped with TVS protection, capable of withstanding lightning strikes and electromagnetic interference;
4. Convenient Installation: DIN rail clip-on design, suitable for industrial sites;
5. Visual Debugging: Complete indicator lights for real-time monitoring of communication status.
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Hardware Parameters |
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Product Name: XR1004-USB |
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Main Control Chip: USB 2.0 Type-B |
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Serial Port Type: 4-channel RS485 |
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Power Supply: USB 5V, no additional power supply required |
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Isolation Design: 2 independent isolation channels: 1 channel for A/B, 1 channel for C/D |
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Isolation Voltage Withstand: USB ↔ RS485：1500V AC，1 minute |
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Communication Baud Rate:1200bps~250kbps, CTS and RTS hardware automatic flow control |
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Protection Design: Each RS485 channel adopts 600W TVS for lightning protection, surge protection, and common-ground interference protection |
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Indicator Lights: PWR (power), USB Link (connection status), TX/RX (independent transmission and reception indicators for each channel) |
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Dimensions: 113*72*43.5mm |
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Operating Temperature: -20℃ ~ +70℃(industrial grade) |
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Storage Temperature: -30℃ ~ +75℃ |
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Humidity: 5%~95% (no condensation) |
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Weight: 100g |
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Installation Method: Rail-mounted |
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Indicator Light Description: |
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Communication indicator light TX, RX |
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During data transmission/reception, the illumination of TX/RX indicators signifies normal communication operations. If data traffic is detected without corresponding LED activity, this may indicate a potential module malfunction. |
Product Dimensions:
Schematic Diagram:
USB-Connected master station device.
USB-Connected Touch Screen.
USB-Connected Gateway.
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