The Yokogawa ANT401-5E/A2EE2AT Optical ESB Bus Repeater Master Module is a high-performance optical communication device engineered for distributed control systems (DCS) that demand long-distance, high-speed, and deterministic communication. Serving as the master module in an Optical ESB (Enhanced System Bus) network, it provides robust connectivity between central controllers and remote field nodes.

Designed for mission-critical industrial applications, this module utilizes fiber-optic technology to eliminate electromagnetic interference (EMI), maintain high signal integrity, and extend communication ranges. The ANT401-5E/A2EE2AT is widely applied in oil & gas, petrochemical, power generation, and manufacturing industries where system reliability, redundancy, and continuous operation are paramount. Its rugged construction, integrated diagnostics, and flexible mounting options ensure ease of installation and maintenance in demanding plant environments.

Product Specifications

Product Applications

The ANT401-5E/A2EE2AT module is suitable for industrial systems requiring high-speed, interference-free, and long-distance communication. Typical applications include:

• Power Generation: Ensures deterministic communication between central control systems and remote turbine or generator nodes.

• Oil & Gas Industry: Supports reliable communication in offshore platforms, refineries, and pipelines.

• Petrochemical Plants: Maintains high-speed data transfer in EMI-intensive environments.

• Pharmaceutical & Food Processing: Enables precise and compliant communication for batch processing automation.

• Large Manufacturing Plants: Integrates distributed control and automation across extensive facility areas.

Product Advantages

• High-Speed Optical Transmission: Provides fast, deterministic data transfer across long distances.

• EMI Immunity: Fiber-optic technology ensures stable communication in environments with heavy electrical interference.

• Redundant Communication Paths: Dual optical paths enhance system availability and fault tolerance.

• Extended Transmission Range: Capable of connecting nodes several kilometers apart without signal degradation.

• Industrial-Grade Design: Durable and compact for installation in harsh conditions.

• Integrated Diagnostics: LED indicators and built-in monitoring simplify troubleshooting and maintenance.

FAQ

1. Which fiber types are compatible with the ANT401-5E/A2EE2AT?

   Supports both single-mode and multimode fibers depending on the required distance.

2. Does this module support redundant communication paths?

   Yes, dual redundant optical paths are available for high system availability.

3. What is the maximum transmission distance with fiber optics?

   Typically up to 15 km using single-mode fiber, depending on network configuration.

4. How many nodes can be connected to the ESB network through this master module?

   Supports up to 64 nodes per network segment.

5. Is the ANT401-5E/A2EE2AT compatible with Yokogawa CENTUM VP systems?

   Yes, it is fully compatible with CENTUM VP and other Yokogawa DCS platforms.

6. What diagnostic features are included?

   LED indicators for power, communication, link, and fault status, along with self-check functions.

7. Can this module be hot-swapped?

   Yes, it can be replaced without shutting down the entire system when configured properly.

8. How does it handle data transmission errors?

   Uses CRC error detection and automatic retransmission for maintaining data integrity.

9. What is the nominal power supply and consumption?

   Operates on 24 V DC (±10%) with approx. 10 W power consumption.

10. How is synchronization maintained between multiple nodes?

    Time-synchronized data exchange ensures deterministic communication across the ESB network.