The ABB TB820-2V2 is a Module Bus Modem that is part of the ABB Ability™ System 800xA® distributed control system (DCS). It is used to connect remote I/O stations to the DCS via a fiber optic cable. The TB820-2V2 supports up to seven I/O stations on a single fiber optic cable.

The TB820-2V2 has a number of features that make it a versatile and reliable solution for industrial automation applications. These features include:

• Support for up to seven I/O stations on a single fiber optic cable
• Long-distance communication (up to 2 km)
• High-speed data transfer (up to 10 Mbps)
• Rugged construction
• Easy installation and maintenance

The TB820-2V2 is a popular choice for a variety of industrial automation applications, including:

• Power generation
• Oil and gas
• Water and wastewater treatment
• Manufacturing
• Transportation

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