B&B Electronics RS-422/485 Converter Optically Isolated 485OT9L

The B&B Electronics 485OT9L is an optically isolated serial converter designed to seamlessly convert RS-232 signals to RS-422 or RS-485, ensuring reliable data communication in industrial environments.

Key Features

• Optical Isolation: Provides robust protection against electrical noise and ground loops, enhancing signal integrity.
• Versatile Compatibility: Supports both RS-422 and RS-485 communication standards, accommodating various industrial applications.
• Automatic Send Data Control: Eliminates the need for software control of handshake signals by automatically managing data flow.
• Configurable Settings: Features an 8-position DIP switch for easy selection of baud rate, communication mode (2-wire or 4-wire), echo settings, and termination options.
• LED Indicators: Equipped with Transmit Data and Receive Data LEDs to monitor data flow and assist in troubleshooting.
• Flexible Power Supply: Operates on a single supply voltage up to 30 VDC, simplifying integration into existing systems.

Technical Specifications

• RS-232 Interface: DB9 female connector supporting TD, RD, and Signal Ground; RTS and CTS are tied together, as are DSR, CD, and DTR.
• RS-422/485 Interface: Terminal blocks supporting Transmit Data (A) and (B), Receive Data (A) and (B), and Signal Ground.
• Baud Rate Selection: Configurable via DIP switches to accommodate various communication speeds.
• Termination Resistance: Selectable termination resistance for high baud rates and long cable distances, ensuring signal integrity.
• Operating Temperature: Designed to function reliably across a wide temperature range, suitable for industrial environments.

Applications

The 485OT9L is ideal for extending communication distances, connecting multiple devices in a network, and ensuring data integrity in environments with high electrical noise. Its robust design and flexible configuration options make it suitable for various industrial automation and control applications.

By integrating the 485OT9L into your system, you can achieve reliable and efficient serial communication, safeguarding your equipment and data from potential electrical disturbances.