ABB TB811 3BSE008568R1 Modulebus Optical Port

The ABB TB811 3BSE008568R1 is an optical interface module designed for the AC 800M series within the ABB 800xA control system. It enables high-speed, reliable fiber optic communication between control units and system components.

Technical Specifications

Applications

• Modulebus extension via fiber optics

• Distributed control systems using AC 800M

• Noise-sensitive environments requiring EMI immunity

• Redundant communication setups in process industries

Advantages

• Enables robust, long-distance optical communication

• Supports high system availability through redundancy

• Lightweight and compact, easy to integrate

• Designed specifically for ABB’s 800xA platform

FAQ

Q1: What is the main function of the TB811?

A1: It provides a fiber optic communication interface for ABB’s Modulebus in the 800xA system.

Q2: Is TB811 compatible with third-party systems?

A2: No, it is engineered for use with ABB’s AC 800M controllers.

Q3: Does TB811 support redundancy?

A3: Yes, it supports redundant Modulebus communication paths.

Q4: What type of cable is used?

A4: It uses fiber optic cables with standard optical connectors.

Q5: How is the module mounted?

A5: It is DIN-rail mounted inside industrial cabinets.

Q6: Can it be used outdoors?

A6: No, it has IP20 protection and is intended for indoor use.

Q7: What’s the typical communication range?

A7: It depends on fiber type but can typically reach several kilometers.

Q8: Does it offer diagnostic indicators?

A8: Yes, it includes basic LEDs for status and activity.

Q9: How does the module respond to fiber failure?

A9: In redundant setups, it automatically switches to the alternate fiber.

Q10: Is hot-swapping allowed?

A10: No, power should be off before removal or replacement.