ABB Master DSBC110 57310256-E Bus Termination Module

Overview

Configured for bus termination in ABB Master systems, the ABB DSBC110​ (DSBC 110​ Bus Termination Module) provides direct electrical line matching and signal reflection suppression across the distributed control network backplane.

Hardware Specifications

Backplane Bus Communication Velocity Licenses

The module interfaces directly with the ABB Master bus architecture. It supports deterministic data exchange rates defined by the system firmware. Firmware flash compatibility is restricted to specific Master system generations; mismatched firmware revisions result in bus initialization failure. The termination impedance is fixed to match the characteristic impedance of the bus cable to prevent standing waves.

Frequently Asked Questions

Q: Can the DSBC110 be hot-swapped while the ABB Master node is powered?

A: No. The module must be installed or removed only after the associated power supply is isolated to prevent backplane arcing and transient voltage spikes.

Q: What is the impact of omitting this termination module from the bus segment?

A: Omission causes signal reflections at the physical end of the bus, leading to data collision, CRC errors, and eventual communication timeouts on the affected segment.

Q: Does the DSBC110 require separate power wiring?

A: No. The module draws necessary operating current directly from the backplane bus connector of the host rack.

Field Installation Guidelines

Install the DSBC110 at the physical end position of the bus segment to ensure correct impedance matching. Secure the unit firmly into the designated slot until the locking mechanism engages. Ensure the bus shield drain wire is terminated to the rack ground point with less than 1 ohm resistance. Verify that adjacent modules do not obstruct airflow around the termination resistors.

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