Description
Product Overview
The PL2303 USB to RS485 Converter Adapter is a professional-grade communication tool designed to connect modern computers with RS485 industrial networks. Powered by the reliable Prolific PL2303 series chipset (available in HX, HXD, or GC variants), this converter provides a stable and efficient solution for interfacing with RS485 devices such as PLCs, Modbus meters, access control systems, and industrial automation equipment.
RS485 is the backbone of industrial communication, allowing long-distance transmission (up to 1200 meters) and supporting multi-drop networks with up to 32 devices on a single bus . This adapter uses differential signaling (A and B lines) to provide superior noise immunity, ensuring reliable data transfer even in electrically noisy factory environments.
The PL2303 chip is widely recognized for its excellent driver support across multiple operating systems, particularly for legacy versions like Windows XP and Windows 7 . While the HX/GC versions have certain driver restrictions on Windows 11, the HXD variant remains highly compatible with Windows 10 and 11 . This converter is self-powered via USB, requiring no external power supply for most applications .
Key Features
-
Prolific PL2303 Chipset: Available in HX, HXD, or GC variants, offering professional-grade stability and broad driver support
-
Long-Distance Transmission: RS485 differential signaling supports communication distances up to 1200 meters (4000 feet), ideal for industrial and field installations
-
Plug-and-Play Operation: Self-powered from USB bus; appears as a standard virtual COM port – no complex configuration required
-
Automatic Data Direction Control: Hardware handles RS485 half-duplex direction switching seamlessly; no software handshaking needed
-
Supports Legacy Windows: Full compatibility with Windows XP and Windows 7 using dedicated driver versions (V260 for HX chips)
-
High-Speed Communication: Baud rates from 75 bps up to 6 Mbps (chip capability), with practical rates up to 230 kbps over shorter distances
-
Multi-Device Support: Each converter can connect up to 32 RS485 devices in a multi-drop network (daisy-chain configuration)
-
Built-in Protection: Features self-recovery fuse, TVS diodes for surge protection, and 2.5kV isolation on industrial-grade models
-
Indicator LEDs: Status LEDs provide real-time visual feedback for power (PWR), transmit (TXD), and receive (RXD) activity
-
Cross-Platform Support: Compatible with Windows (XP through 11), Linux, macOS, and Android
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Chipset | Prolific PL2303 Series (HX / HXD / GC) |
| Host Interface | USB 2.0 (Full-Speed) |
| Device Protocol | RS485 (Half-Duplex) |
| Baud Rate Range | 75 bps – 6 Mbps (chip capability); practical up to 230 kbps |
| Max Transmission Distance | 1200 meters @ 57.6 kbps |
| Max Network Nodes | Up to 32 devices per segment |
| Power Supply | 5V DC (USB bus-powered) |
| Protection Features | Self-recovery fuse, TVS diodes, 2.5kV isolation (select models) |
| Operating Temperature | -40°C to +85°C (industrial grade) |
| Supported OS | Windows (XP, Vista, 7, 8, 10, 11), Linux, macOS, Android |
| RS485 Connector | Screw Terminals (A, B, GND) or DB9 |
| Cable Length (USB Side) | Approx. 80cm – 100cm |
Reviews
There are no reviews yet.