The CRBX01 2VAA008424R1 Remote Bus extender is a compact fiber optic repeater module in the ABB Ability™ Symphony® Plus system designed to extend the communication range of the HN800 IO bus for industrial automation and control systems. The following is the main information about CRBX01 2VAA008424R1:

1. Functions and features
Transparent expansion: The CRBX01 2VAA008424R1 can transparently expand the HN800 IO bus of the SPCxxx controller without additional configuration, and the function, performance and capacity of the remote IO or communication module is the same as that of the local module.

Redundancy design: The HRBX01K02 is a redundancy package of the cRBX01, consisting of two cRBX01 modules and one RMU610 base to support highly reliable industrial applications.

High capacity support: The CRBX01 2VAA008424R1 supports up to 60 HN800 devices (such as SD series IO or communication modules) per remote link and up to 8 remote links per controller.

Long-distance communication: When using 62.5/125 µm multimode fiber optic cables, each link can be up to 3.0 km long.

2. Technical parameters
Topology: The fiber-optic HN800 bus uses a star topology (point-to-point), suitable for complex industrial network layouts.

Compatibility: Fully compatible with ABB Symphony Plus system to support a wide range of industrial automation applications.

Installation mode: Modular design, easy installation, suitable for rapid deployment on industrial site.

3. Application scenario
Industrial Automation: Distributed control systems (DCS) for the power, chemical, oil and gas industries.

Remote IO Extension: In scenarios where long-distance communication and distributed control are required, the cRBX01 is ideal