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ABB 3BSE013208R1 TB820V2

1. Product Identification

• Manufacturer: ABB
• Order Number: 3BSE013208R1
• Model: TB820V2
• Product Name: ModuleBus Cluster Modem / Optical ModuleBus Modem
• Product Family: ABB S800 I/O System / System 800xA
• Product Type: Communication Interface Module

The ABB TB820V2 is a fiber optic ModuleBus communication interface used in the S800 I/O distributed process I/O system. It provides communication expansion between the controller side and remote I/O clusters through optical ModuleBus connections.

2. Main Function

The TB820V2 acts as a ModuleBus optical cluster modem, converting and extending the ModuleBus communication between:

• Electrical ModuleBus side: Connection to local S800 I/O modules
• Optical ModuleBus side: Fiber optic connection to distributed I/O clusters

It allows:

• Up to 12 I/O modules on the electrical ModuleBus
• Up to 7 I/O clusters connected through optical ModuleBus

3. Technical Specifications

4. Optical Communication Details

Optical ModuleBus:

• Fiber optic interface for remote I/O cluster distribution
• Wavelength: 650 nm
• Maximum optical cable length:
  • Plastic Optical Fiber (POF): up to 15 m
  • Hard Clad Silica (HCS): up to 200 m

The module includes a rotary selector switch for setting the optical ModuleBus cluster number (1–7).

5. Physical Characteristics

6. Environmental Specifications

7. Features

• Fiber optic extension of ABB S800 I/O ModuleBus
• Supports distributed I/O architectures
• Provides electrical-to-optical ModuleBus bridging
• Supervises ModuleBus communication and power supply status
• Provides isolated power supply to connected I/O modules
• Suitable for large process automation installations

8. Typical Applications

ABB TB820V2 is commonly used in:

• Process control systems
• Power generation plants
• Oil & gas facilities
• Chemical and petrochemical plants
• Water treatment systems
• Large industrial automation networks

Typical configuration:

800xA Controller / AC 800M → Optical ModuleBus → TB820V2 → S800 I/O Modules

9. Ordering Information

ABB Part Number: 3BSE013208R1
ABB Type Designation: TB820V2
Description: TB820V2 ModuleBus Cluster Modem (non-redundant optical cluster modem)

Standard package information includes:

• Power supply connector
• TB807 ModuleBus terminator

10. Conclusion

The ABB 3BSE013208R1 TB820V2 is a key communication expansion module for ABB S800 I/O systems. It enables reliable fiber-optic ModuleBus networking, allowing remote I/O clusters to be distributed over industrial environments while maintaining high signal integrity and system flexibility. It is widely used in ABB System 800xA automation projects requiring scalable and decentralized I/O architectures.