ABB 1MRK002266-BAr03 Fiber Optic Communication Module

The ABB 1MRK002266-BA r03, also cataloged as the 1MRK002266-BA Fiber Optic Communication Module, operates as a dedicated hardware component for high-bandwidth data serialization and network transmission within ABB industrial automation and substation control systems. Configured for high-speed communication links, the device provides direct electro-optical signal conversion. It executes data frame propagation natively at the physical network layer to connect protective relays, bay controllers, and remote I/O nodes parallel to primary system bus cycles.

Hardware Specifications

Substation Automation & Optical Network Scaling

• Backplane Bus Communication Velocity and Optical Data Routing The 1MRK002266-BA r03 interfaces directly with the host chassis parallel processor backplane. The module translates backplane data structures into high-frequency optical pulse sequences at data transfer rates up to 1 Gbps, allowing low-latency transfer of critical event recordings, trip commands, and interlocking registers across network nodes.
• Profinet / EtherNet/IP Deterministic Networks Alignment Operating via Ethernet-based protocols over fiber optic physical lines, the module ensures deterministic communication path execution. The choice of multimode or single-mode fiber connectivity supports network layout adjustments—enabling extended point-to-point connections over several kilometers without inserting variable transmission delays into the system control loops.

Frequently Asked Questions

Q: What specific hardware states or diagnostic indications occur if an active optical fiber link suffers an absolute loss of light (Rx signal drop)?

A: The internal optical receiver immediately switches its signal-detect gate to low, writes an unmasked link-fail code to the diagnostic status register, and alters the local port LED state. This breaks the logical network bridge, forcing the host controller to shift transmission paths to redundant nodes to preserve automation loop execution.

Q: Can this 0.1 kg fiber optic communication module be hot-swapped while the host controller subrack is powered and processing active field logic?

A: Yes, if the host chassis backplane explicitly supports hot-swapping for that specific slot class. While pulling the module under power does not cause physical bus damage or generate electrical arcs, all fiber optic communication routing handled by this specific module drops instantly, requiring upstream redundancy loops to pick up the data load.