B+B SmartWorx 422PP9R Port-Powered RS-232 to RS-422 Converter
The 422PP9R is a port-powered RS-232 to RS-422 converter engineered for industrial and commercial applications requiring reliable serial data communication over extended distances. This full-duplex serial interface converts standard RS-232 transmit and receive lines into balanced RS-422 signals, delivering superior noise immunity and extended transmission range without requiring external power. Supporting data rates up to 115.2 kbps, the B+B SmartWorx 422PP9R is ideal for legacy system integration, industrial automation, and environments where RS-422 communication is essential but RS-232 infrastructure exists.
Key Features
- Port-powered design — no external power supply required
- Full-duplex RS-232 to RS-422 conversion for balanced serial communication
- Supports data rates up to 115.2 kbps for reliable high-speed transmission
- Extended transmission distance with enhanced noise immunity
- Compact form factor suitable for industrial and commercial installations
- Powered from RS-232 handshaking lines for seamless integration
- Reliable performance in harsh industrial environments
Technical Specifications
| Specification |
Details |
| Manufacturer |
B+B SmartWorx |
| Part Number |
BB-422PP9R |
| Product Type |
Port-Powered RS-232 to RS-422 Converter |
| Interface Type |
Full-Duplex Serial |
| Input Signal |
RS-232 |
| Output Signal |
RS-422 (Balanced) |
| Maximum Data Rate |
115.2 kbps |
| Power Source |
RS-232 Handshaking Lines |
| Transmission Distance |
Extended Range with Noise Immunity |
| Application |
Industrial and Commercial Communication |
Frequently Asked Questions
What is an RS-232 to RS-422 converter used for?
An RS-232 to RS-422 converter bridges legacy RS-232 equipment with modern RS-422 systems, enabling extended-distance communication with improved noise immunity. It's essential for industrial automation, data acquisition systems, and applications requiring reliable serial communication in electrically noisy environments.
Does the 422PP9R require external power?
No. The 422PP9R is port-powered, drawing power directly from the RS-232 handshaking lines. This eliminates the need for external power supplies, simplifying installation and reducing system complexity in industrial applications.
What data rates does the B+B SmartWorx 422PP9R support?
The 422PP9R supports data rates up to 115.2 kbps, making it suitable for most industrial serial communication protocols and legacy system integrations requiring reliable full-duplex transmission.
How does RS-422 improve communication compared to RS-232?
RS-422 uses balanced differential signaling, providing extended transmission distance and superior noise immunity compared to single-ended RS-232. This makes it ideal for industrial environments with electromagnetic interference and applications requiring communication over longer cable runs.
