This RS232 to RS422/485 interface converter is perfect for industrial automation engineers and system integrators who need reliable serial communication between different interface standards. The Black Box IC820A delivers:
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RS232 to RS422/485 conversion enabling seamless connectivity across different serial protocols
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DB9 to terminal block connection providing flexible wiring options for industrial applications
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Compact design perfect for space-constrained control panels and automation systems
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Industrial-grade reliability ensuring robust performance in harsh manufacturing environments
Key Features
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Dual Protocol Support converting between RS232 and RS422/485 standards
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DB9 Female Connector for standard RS232 device compatibility
- Professional terminal block interface for secure RS422/485 connections
- Optimized for industrial automation and building management systems
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Compact form factor for easy installation in control panels
- LED status indicators for signal monitoring
- Isolated design protecting connected equipment
Technical Specifications
| Manufacturer |
Black Box |
| Model Number |
IC820A |
| Type |
RS232 to RS422/485 Interface Converter |
| Input Interface |
RS232 DB9 Female |
| Output Interface |
RS422/485 Terminal Block |
| Data Rate |
Up to 115.2 Kbps |
| Power Supply |
External AC Adapter (included) |
| Operating Temperature |
0°C to +70°C (32°F to +158°F) |
| Dimensions |
Compact Desktop/Panel Mount |
| Application |
Manufacturing Automation & Building Management |
Frequently Asked Questions
Q: What is the difference between RS422 and RS485?
A: RS422 supports point-to-point communication with full-duplex operation, while RS485 enables multi-drop networks with half-duplex communication, making it ideal for industrial automation networks with multiple devices.
Q: Why use terminal blocks instead of standard connectors?
A: Terminal block connections provide superior reliability in industrial environments, enabling secure wire termination, easy troubleshooting, and robust connections that withstand vibration and temperature variations.
Q: How does this improve serial communication reliability?
A: This converter transforms single-ended RS232 signals into differential RS422/485 signals, providing better noise immunity, longer transmission distances up to 4000 feet, and higher data rates for industrial applications.
Q: What industrial applications benefit from this converter?
A: Perfect for manufacturing automation systems, SCADA networks, building management systems, and any application requiring reliable serial communication between RS232 devices and RS485 networks.
RS232 to RS422/485 interface converter with DB9 to terminal block connections. Industrial-grade serial communication for automation systems.
