ABB TB842 3BSE022464R1 S800 I/O ModuleBus Optical Port Interface

Description

The ABB TB842 is a ModuleBus Optical Port for the S800 I/O system, enabling fiber optic connectivity between I/O clusters. It provides galvanic isolation, eliminates ground loops, and ensures strong EMI immunity, allowing reliable communication over long distances in distributed and electrically noisy environments.

Specifications

• Manufacturer: ABB

• Model Number: TB842

• Order Number: 3BSE022464R1

• Product Type: ModuleBus Optical Port

• Interface: Fiber Optic (ST connectors)

• Wavelength: 650 nm

• Fiber Type: Plastic Optical Fiber (POF) or Hard Clad Silica (HCS)

• Maximum Distance: Up to 15m (POF) or 200m (HCS)

• Power Supply: 24V DC (via ModuleBus)

• Mounting: 35mm DIN Rail

• Operating Temperature: 0 to +55°C

Features

• Optical Isolation: Provides 100% electrical separation between I/O clusters to protect sensitive control hardware from surges and noise.

• Extended Range: Overcomes the distance limitations of standard copper bus wiring, enabling remote placement of I/O modules.

• Redundancy Support: Compatible with redundant ModuleBus configurations to ensure high system availability and process uptime.

• Signal Integrity: Maintains high-speed deterministic data transmission across optical links without signal degradation.

• Snap-On Installation: Designed for effortless mounting on standard DIN rails, integrating seamlessly with other S800 communication modules.

• Diagnostics: Features integrated LED indicators for localized monitoring of power and bus communication status.