USB to RS232/RS485 Converter – Reliable Serial Communication for Modern Systems
This USB to RS232/RS485 Converter is a compact, high-performance adapter designed to bridge USB-enabled devices with RS232 or RS485 serial interfaces. Whether you're working with legacy industrial equipment, serial sensors, or embedded systems, this converter ensures stable, protected, and efficient communication in a variety of environments.
Two Interfaces in One – RS232 and RS485 Support
This converter combines both RS232 and RS485 interfaces into a single, plug-and-play device. You can easily switch between the two via a hardware jumper, making it ideal for technicians, engineers, and developers who work across multiple serial standards. No need to carry separate converters — this single unit does it all.
- RS232: For short-range, point-to-point communication with standard serial devices (like PLCs, barcode scanners, and legacy control panels).
- RS485: For long-distance, multi-device networks in industrial and automation settings. RS485 supports differential signaling, which means stronger noise immunity and greater reliability across long cables.
Powered by the Trusted FT232RNL Chip
The processor in this converter is the FT232RNL USB-UART chip, a widely used and highly compatible solution known for its stability and low latency. It supports baud rates up to 921,600 bps, ensuring fast and accurate data transfer without dropped bytes or delays.
The chip also ensures cross-platform compatibility — drivers are available for Windows, Linux, macOS, Android, and more, making integration into your system seamless.
Built-In Protection for Industrial Environments
Electrical protection is a major concern when working with serial interfaces, especially in industrial or field environments. This converter comes equipped with:
- TVS (Transient Voltage Suppression) diodes to absorb voltage spikes and transients
- Self-recovery fuse to prevent damage from overcurrent
- ESD protection on data lines to safeguard against electrostatic discharge
- Protection diodes and filter capacitors to ensure clean, stable signal output
- A switchable 120 Ω termination resistor for proper RS485 bus termination
These features help protect both the converter and the connected devices from damage due to power fluctuations, making it highly reliable for mission-critical applications.
Compact, Durable, and Easy to Use
Encased in a sleek ABS plastic shell, the converter is durable yet lightweight — perfect for mobile toolkits or tight spaces in control panels. Three onboard LEDs provide clear, at-a-glance status monitoring:
- Red: Power (PWR)
- Green: Transmit (TXD)
- Blue: Receive (RXD)
Setup is straightforward: just plug the converter into a USB port, install the driver (if needed), and connect your serial device. The USB side uses a standard USB-A connector with an included cable for flexible positioning.
Resources
Applications
- Industrial automation systems
- Serial debugging and development
- SCADA and telemetry projects
- Laboratory instruments and data acquisition
- Home automation setups with RS485 sensors or devices
- Engineers and technicians who frequently work with legacy equipment
What's Included
- 1× USB to RS232/RS485 Converter
- 1× USB-A to USB cable
- (drivers are downloadable for free)
| SPECIFICATIONS |
| Part number |
26630 |
| Operating system |
- Windows 11, 10, 8.1, 8 (32/64-bit), Windows Server 2016, Windows Server 2012 / R2, Windows 7 (32/64-bit), Windows Server 2008 R2, Vista (32/64-bit), Windows Server 2008 (32/64-bit), XP, Windows Server 2003 (32/64-bit), 2000, (all WHQL compliant). Windows RT as D2XX drivers only.
- Windows CE v4.2 - 5.2, 6.0, 7.0 and 2013 including: Windows Mobile 2003, 2003 SE, Windows Mobile 5, 6, 6.1 and 6.5
- Linux (built into kernel 3.0.0-19 and above)
- Mac OS 8, OS 9, OS X 10.3 to 10.9 and above (since 10.9 the drivers are included in the kernel).
- Android 4.2
|
| Processor |
FT2232HL |
| Power |
5VDC provided by USB port |
| Serial interface |
Screw terminal block |
| RS485 |
2-wire half duplex, D+, D-, GND |
| RS232 |
2-wire, TX, RX, GND |
| Compatible with |
Modbus RTU/ASCII, BACnet |
| Bias resistors |
Yes |
| Installation method |
35mm standard DIN rail or screws |
| USB interface |
Standard Type B Female |
| Indication LEDs |
Power, Send and Receive |
| Baud rate |
300 to 921600bps |
| Parity |
None, Odd, Even, Mark, Space |
| Data Bits |
5, 6, 7, 8 |
| Stop Bits |
1, 1.5, 2 |
| Flow Control |
Hardware automatic control (RS485) |
| COM port accessible by |
Included virtual COM port drivers |
| Isolation |
700V continuous and 3500V spike
200mA self-recovery fuse (USB) |
| Electrostatic (ESD) protection |
15KV/ 600W/ms high voltage protection |
| Current draw |
Static: less than 80mA. Dynamic average: less than 150mA |
| Dimensions |
78.52 × 18.36 × 12.50 mm |
| Interface compliance |
USB1.1,2.0,3.0, EIA/TIA RS-232 |
| Regulatory compliance |
FCC, CE and RoHS |
| Operating temp |
-15°C to 70°C |
| Warranty |
1 year limited warranty |
Order Today
Whether you're upgrading legacy equipment, building a robust field system, or simply need a flexible, protected way to connect via serial protocols, this USB to RS232/RS485 Converter is an essential tool for any professional.
✅ Affordable • ✅ Reliable • ✅ Plug & Play
