Overview

The ABB TB825 Optical Media Converter is a compact and rugged solution designed to convert between plastic or HCS fiber and glass optical fiber. Built in the S800L mechanics and mounted on a DIN rail, it facilitates long-distance data transmission—up to 1000 meters per cluster—using a star topology.

Moreover, the TB825 supports versatile link connectors for plastic/HCS fiber and ST connectors for glass fiber, offering flexible deployment across various industrial setups. Its design ensures seamless integration into ABB’s distributed control systems, especially in environments where electromagnetic interference (EMI) or long cable runs are a concern.

In addition, the converter enhances system reliability by enabling optical ModuleBus distribution, which is critical in large-scale automation environments, such as power plants, chemical facilities, and manufacturing lines.

Technical Data

Typical Applications

• Distributed Control Systems (DCS): Extends ModuleBus communication across large industrial sites.

• Power Generation Facilities: Ensures reliable fiber-optic data transmission in high-voltage environments.

• Chemical and Petrochemical Plants: Reduces signal degradation over long distances and in corrosive atmospheres.

• Manufacturing Automation: Connects remote I/O modules to central controllers with minimal latency.

• EMI-Prone Environments: Replaces copper wiring to avoid electromagnetic interference in sensitive installations.

For example, in a refinery, TB825 ensures control signals can travel securely between field devices and control rooms over fiber, maintaining system integrity. It is therefore an essential component for modernizing legacy networks and expanding automation infrastructure.

FAQ

Q: What fiber types does TB825 support?

A: It supports plastic, HCS, and glass optical fibers via versatile link and ST connectors.

Q: How far can it transmit signals?

A: Up to 1000 meters per cluster in a star configuration.

Q: Is it compatible with ABB’s S800L I/O system?

A: Yes, it is specifically designed for S800L ModuleBus extension.

Q: Can it be mounted on a DIN rail?

A: Absolutely. It uses standard S800L DIN rail mounting.

Q: What industries typically use TB825?

A: Power generation, chemical processing, manufacturing, and any EMI-sensitive environments.