ABB TB807 3BSE008538R1 AC 800M Modulebus Terminator

ABB TB807 3BSE008538R1 Modulebus Terminator

The ABB TB807 (part number 3BSE008538R1) is a compact Modulebus terminator designed for the ABB AC 800M control system. Installed at the end of a Modulebus cluster, it provides line termination to eliminate signal reflections and maintain data transmission integrity across connected I/O expansion modules and communication interfaces.

Bus Line Termination and Communication Stability

As a passive line terminator, the TB807 prevents transmission line impedance mismatches within the Modulebus architecture. Absorbing signal reflections at network endpoints ensures reliable high-speed data exchange between the AC 800M controller and distributed I/O clusters, reducing communication errors in industrial control cabinets.

Physical Dimensions and Regulatory Compliance

Featuring an ultra-compact form factor measuring 13 mm x 17 mm x 19 mm and weighing 0.01 kg, the terminator connects directly into the designated Modulebus port without occupying mounting rail space. It is classified under HS Code 85369095, complies with WEEE Category 5 for small electrical equipment, and contains no Substance of Very High Concern (SVHC) under SCIP guidelines.

Technical Parameters

Frequently Asked Questions

Q: What is the primary function of the ABB TB807 Modulebus terminator? A: It terminates the end of a Modulebus line in ABB AC 800M control systems to prevent signal reflections and preserve communication stability.

Q: Where is the TB807 installed in a controller arrangement? A: The compact unit attaches to the final Modulebus interface or I/O station in an AC 800M expansion cluster.