USB to RS-485 Serial Converter for Industrial Automation
The BB-485USB9F-2W-LS is a professional-grade USB 2.0 to RS-485 serial converter designed for industrial control systems, automation equipment, and legacy device integration. This 2-wire RS-485 converter bridges modern USB ports with industrial serial networks, providing reliable data communication at speeds up to 921.6 kbps. With a locked serial number and DB9 female connector, it's ideal for applications requiring secure device identification and standardized serial connections in manufacturing, HVAC, energy management, and process automation environments.
Key Features
- USB 2.0 interface with 12 Mbps data rate for fast host communication
- RS-485 2-wire serial connectivity supporting up to 921.6 kbps transmission speed
- DB9 female connector for standard industrial serial device connections
- Locked serial number for secure device identification and asset tracking
- Compact design suitable for panel mounting and industrial enclosures
- Supports multi-drop RS-485 networks with up to 32 devices on a single bus
- Cross-platform driver support for Windows, Linux, and macOS systems
- Industrial-grade reliability for 24/7 continuous operation
Technical Specifications
| Specification |
Value |
| Manufacturer |
B+B SMARTWORX |
| Part Number |
BB-485USB9F-2W-LS |
| Interface Type |
USB 2.0 to RS-485 2-Wire Serial Converter |
| USB Data Rate |
12 Mbps |
| RS-485 Baud Rate |
Up to 921.6 kbps |
| Serial Connector |
DB9 Female |
| Serial Configuration |
2-Wire RS-485 (Half-Duplex) |
| Serial Number |
Locked |
| Maximum Devices |
32 on RS-485 bus |
| Operating Temperature |
0°C to 60°C |
| Storage Temperature |
-20°C to 80°C |
| Power Supply |
USB Bus Powered |
Frequently Asked Questions
What is a USB to RS-485 serial converter used for?
A USB to RS-485 serial converter enables modern computers and devices with USB ports to communicate with industrial equipment, sensors, and controllers that use RS-485 serial interfaces. This is essential for integrating legacy industrial systems with contemporary IT infrastructure, enabling data acquisition, device control, and system monitoring in manufacturing and automation applications.
Can I use this RS-485 converter with multiple devices?
Yes, the BB-485USB9F-2W-LS supports multi-drop RS-485 networks, allowing up to 32 devices to be connected on a single 2-wire RS-485 bus. This makes it ideal for applications requiring centralized monitoring and control of multiple industrial devices from a single USB port.
What does the locked serial number feature provide?
The locked serial number ensures secure device identification and prevents unauthorized device substitution. This feature is critical for applications requiring asset tracking, compliance verification, and secure communication protocols where device authenticity must be guaranteed.
Is this serial converter compatible with Windows and Linux systems?
Yes, the BB-485USB9F-2W-LS includes cross-platform driver support for Windows, Linux, and macOS, making it compatible with virtually all modern operating systems and industrial control software platforms.
