USB to RS-485 Mini Converter – BB-485USB9F-2W
The B+B SmartWorx BB-485USB9F-2W is a compact USB to RS-485 mini converter engineered for reliable 2-wire RS-485 communication in industrial and commercial applications. This DB9 female connector adapter delivers bus-powered convenience with high-speed serial data transmission, making it ideal for integrating legacy RS-485 devices with modern USB-enabled systems. Whether you're building multi-drop networks, connecting industrial sensors, or extending serial communication ranges, this mini converter provides the robust connectivity your infrastructure demands.
Key Features
- Compact inline form factor with USB to RS-485 conversion for space-constrained installations
-
2-wire RS-485 support with DB9 female connector for standard industrial serial devices
- Bus-powered operation from USB port – no external power supply required
- High-speed serial data rates up to 921.6 kbps with 12 Mbps USB connectivity
- Multi-drop network capability for connecting multiple RS-485 devices on a single line
- Long-range communication support for extended industrial deployments
- Includes 1 meter USB Type-B cable for immediate plug-and-play installation
- Durable mini converter design built for reliable industrial environments
Technical Specifications
| Specification |
Details |
| Manufacturer |
B+B SmartWorx |
| Model Number |
BB-485USB9F-2W |
| Interface Type |
USB to RS-485 Converter |
| RS-485 Configuration |
2-Wire |
| Connector Type |
DB9 Female |
| USB Connector |
Type-B Female |
| USB Speed |
12 Mbps |
| Serial Data Rate |
Up to 921.6 kbps |
| Power Source |
Bus-Powered (USB) |
| Network Type |
Multi-Drop RS-485 |
| Cable Included |
1 Meter USB Type-B |
| Form Factor |
Mini Converter (Inline) |
Frequently Asked Questions
What is a USB to RS-485 converter used for?
A USB to RS-485 converter bridges modern computers and USB devices with legacy industrial equipment using RS-485 serial communication. It enables data transmission over longer distances and supports multi-drop networks where multiple devices share a single communication line, making it essential for SCADA systems, industrial sensors, and building automation.
Does the BB-485USB9F-2W require external power?
No, the BB-485USB9F-2W is bus-powered, drawing all necessary power directly from the USB port. This eliminates the need for external power supplies, simplifying installation and reducing cable clutter in industrial environments.
How many devices can connect to this RS-485 mini converter?
The 2-wire RS-485 configuration with multi-drop network support allows multiple RS-485 devices to share a single communication line. The exact number depends on your network design and device specifications, but RS-485 networks typically support up to 32 devices per segment.
What data rates does this converter support?
The BB-485USB9F-2W supports serial data rates up to 921.6 kbps over RS-485, with 12 Mbps USB connectivity. This high-speed performance ensures reliable data transmission for demanding industrial applications and real-time monitoring systems.
