ABB 086406-002

Description

Product Description

The ABB 086406-002 is a dedicated fiber optic interface module, specifically designed as a critical component for the CI857 communication module within the AC 800M High Integrity (HI) controller family. This module serves as the essential media converter and physical layer interface, enabling the CI857 module to connect to a high-speed, noise-immune fiber optic network, typically based on the TCP/IP Industrial Ethernet protocol. The 086406-002 transforms electrical signals from the main CI857 processor into optical signals for transmission over fiber optic cables, and vice-versa. This allows AC 800M HI controllers, often used in critical safety and process applications, to communicate over long distances with superior reliability and immunity to electromagnetic interference (EMI). The integration of the ABB 086406-002 is fundamental for building robust, high-availability network architectures in harsh industrial environments where electrical noise, lightning, or long-distance communication are significant concerns.

Product Parameters

• Module Type: Fiber Optic Interface Module (Transceiver Unit)

• Compatible Main Unit: Designed exclusively for use with the ABB CI857 High-Speed Ethernet Communication Module.

• Primary Function: Provides a dual-port (TX/RX) fiber optic interface for the CI857 module, handling signal conversion and physical connection.

• Network Technology: 100BASE-FX Fast Ethernet.

• Fiber Type & Connectors: Typically uses Multimode fiber (62.5/125 µm) with SC or ST connectors. The exact type is defined by the specific 086406-002 variant.

• Wavelength: 1300 nm.

• Transmission Distance: Up to 2 kilometers with standard multimode fiber (dependent on fiber quality).

• Isolation: Provides complete galvanic isolation via the fiber optic medium, eliminating ground loops and protecting from high-voltage transients.

• Mounting: Attaches directly to the front of the CI857 module, forming a single operational unit installed in an AC 800M rack.

• Status Indicators: Link/Activity and Error status LEDs are typically present on the face of the module.

Advantages and Features

• Superior Noise Immunity: By utilizing fiber optics, the ABB 086406-002 completely eliminates issues caused by EMI/RFI, lightning surges, and ground potential differences, which is critical for safety systems and reliable process control.

• Long-Distance Communication: Enables reliable data transmission over much longer distances (up to 2 km) compared to standard copper Ethernet cables, which are limited to 100 meters.

• Enhanced Security & Safety: The fiber optic link is extremely difficult to tap into without detection, providing a higher level of data security. Its intrinsic safety is also beneficial in hazardous areas.

• Guaranteed Compatibility: As a genuine ABB interface, the 086406-002 ensures flawless electrical, mechanical, and data-link layer compatibility with the CI857 module and the AC 800M HI controller’s firmware.

• High Availability Design: The fiber optic ring or redundant star topologies enabled by this module are essential for creating fault-tolerant network architectures with fast redundancy recovery times.

Application Cases in Various Fields

• Oil & Gas (Offshore Platforms, Refineries): Connecting AC 800M HI safety controllers across different process areas over long distances in an environment saturated with high-voltage equipment and significant EMI, using the 086406-002 for robust communication.

• Power Generation (Thermal, Hydro): Implementing a high-availability Ethernet ring between distributed control system (DCS) nodes in a large plant, where the 086406-002 ensures communication integrity despite lightning strikes near switchyards.

• Pharmaceutical & Fine Chemicals: Creating a segregated and highly reliable control network for batch processes where data integrity and system availability are paramount, leveraging the isolation provided by fiber optics.

• Large-Scale Water Management: Linking pumping stations and treatment facilities separated by several kilometers via a fiber backbone, with the 086406-002 modules providing the interface at each controller node.

Comparisons with Competing Products

Direct comparison to generic fiber optic media converters is not appropriate due to the ABB 086406-002‘s proprietary integration. Key comparisons are:

1. Integrated vs. External Solutions: Unlike PLC systems that require an external, standalone media converter, the ABB design with the 086406-002 offers a compact, factory-tested, and neatly integrated solution that saves panel space and reduces points of failure.

2. Platform-Specific Optimization: Competing controller families (e.g., Siemens, Honeywell) have their own specialized communication modules with built-in or attached fiber ports. The 086406-002 is the optimized solution for the AC 800M HI’s CI857, ensuring support within Control Builder M and guaranteed performance.

3. Copper vs. Fiber Decision: The primary “competition” for the 086406-002 is using a standard copper Ethernet interface. The fiber module is selected when the application demands noise immunity, long distance, or enhanced security that copper cannot provide.

Selection Suggestions and Precautions

1. Confirm Module Pairing: The ABB 086406-002 is useless without its corresponding CI857 module. Always verify they are ordered and used together as a matched set.

2. Specify Fiber Details: Confirm the exact fiber optic connector type (SC or ST) and ensure you have the correct matching cables and patch panels. Using the wrong connector will prevent physical connection.

3. Handle with Care: Fiber optic components are sensitive to dust, scratches, and physical stress. Keep protective caps on when unplugged, clean connectors properly with approved kits, and avoid bending cables beyond their minimum bend radius.

4. Power and Installation: The CI857 module (with the 086406-002 attached) must be installed in a powered-down AC 800M rack. Always follow proper ESD precautions during handling.

5. Network Topology Planning: When implementing a fiber optic network with these modules, carefully design the topology (ring, star). Ensure that network switches in the path are also fiber-based and configured correctly (e.g., for Rapid Spanning Tree Protocol if using rings) to avoid network loops or data bottlenecks.

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