ABB DSBC 170 EXC57310256-DB Communication Module

The ABB EXC57310256-DB, also cataloged as the DSBC 170 Communication Module, operates as a dedicated hardware component for bus signal amplification and extension within Advant Master system architectures. Configured as a Bus Repeater Master, the unit electrically refreshes communication signals on parallel bus paths to sustain deterministic data exchange levels across distant subrack nodes.

Hardware Specifications

Deterministic Networks & Firmware Compatibility

The module integrates directly into standard frame subracks to address constraints in physical distance and loop impedance degradation. Bus signal distribution profiles match timing slots regulated by specific backplane bus communication velocity licenses. This structural interface manages processing data across Profinet / EtherNet/IP deterministic networks, maintaining tight timing window thresholds and strict firmware flash compatibility constants between local masters and remote bus link cards during high I/O density scaling routines.

Frequently Asked Questions

Q: Does the DSBC 170 support active online replacement (hot-swapping) under bus load conditions?

A: No. Electrical isolation of the host subrack framework is necessary before removing or inserting the module. Live servicing risks introducing transient voltage spikes that disrupt the backplane bus communication velocity licenses, causing active processor nodes to fault.

Q: How is the physical electrical boundary line terminated when using the DSBC 170 master repeater?

A: Standard characteristic impedance termination must be maintained at the final terminal boundaries of the expanded bus extension segment, ensuring signal wave reflections do not compromise the data frames.

Q: What is indicated if a mismatch exists in the firmware flash compatibility verification during a system upgrade?

A: The master repeater will fail to synchronize communication packets with the host CPU. The processing nodes will block cyclic data updates, forcing the hardware interface into an uninitialized configuration state.

Field Installation Guidelines

• Slide the module along the chassis guides of the dedicated subrack until the backplane interface pins slide completely into the mating bus terminal sockets.
• Maintain a minimum separation boundary of 100 mm between external bus communication cables and local AC power or drive cabling paths.
• Connect all network shield braids cleanly to the panel's central low-resistance copper grounding strip to minimize high-frequency electromagnetic noise.
• Secure all front faceplate retention fasteners to eliminate micro-vibration hazards that could degrade connection interface stability over long operating schedules.