This USB to RS422/485 converter is perfect for industrial engineers and IT professionals who need reliable serial communication in harsh environments. Our Black Box SP390A-R3 delivers:
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Opto-isolation technology protecting connected equipment from electrical interference
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USB to serial adapter functionality enabling legacy device connectivity
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RS422 and RS485 converter support for industrial protocol communication
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Industrial-grade isolation ensuring signal integrity in noisy environments
Key Features
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Advanced opto-isolation providing electrical protection and noise immunity
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Dual protocol support for both RS422 and RS485 communication standards
- Compatible with USB interface for modern computer connectivity
- Reliable industrial serial communication for control systems
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Isolated converter design preventing ground loop issues
Technical Specifications
| Manufacturer |
BLACK BOX |
| Model Number |
SP390A-R3 |
| Type |
USB to RS422/485 Converter |
| Interface |
USB 2.0 |
| Protocols |
RS422, RS485 |
| Isolation |
Opto-isolation 2500V |
| Data Rate |
Up to 921.6 kbps |
| Operating Temperature |
-40°C to +85°C |
| Compatible Systems |
Windows, Linux, Mac OS |
Frequently Asked Questions
Q: What are the advantages of opto-isolation in this converter?
A: The opto-isolation technology provides electrical protection up to 2500V, eliminates ground loops, and protects sensitive equipment from electrical surges and noise interference common in industrial environments.
Q: Is this converter compatible with modern operating systems?
A: Yes, this USB to serial adapter supports Windows, Linux, and Mac OS with plug-and-play installation. Drivers are typically recognized automatically by the operating system.
Q: Can this device handle both RS422 and RS485 protocols?
A: Absolutely. This RS422/485 converter supports both protocols, making it versatile for various industrial communication applications including SCADA systems and factory automation.
Q: What makes this suitable for industrial environments?
A: The isolated converter features rugged construction, wide operating temperature range (-40°C to +85°C), and electrical isolation that makes it ideal for harsh industrial settings where signal integrity is critical.
USB to RS422/485 converter with opto-isolation for industrial serial communication. Electrical protection and noise immunity for reliable data transmission.
