Yokogawa ANT401-5E/CU1T Optical ESB Bus Repeater Master Module

The Yokogawa ANT401-5E/CU1T Optical ESB Bus Repeater Master Module is a high-performance optical communication module designed for distributed control systems (DCS) that require reliable, long-distance, and high-speed data transmission. Serving as the master module in an Optical ESB (Enhanced System Bus) network, it ensures deterministic communication between central controllers and remote field nodes.

Utilizing advanced fiber-optic technology, this module provides immunity to electromagnetic interference (EMI), maintains high signal integrity, and enables extended transmission ranges. It is widely applied in mission-critical industrial environments such as power generation, petrochemical, oil & gas, and automated manufacturing systems. With robust redundancy support, integrated diagnostics, and a rugged industrial design, the ANT401-5E/CU1T ensures reliable, continuous operation under demanding conditions.

Product Specifications

Product Applications

The ANT401-5E/CU1T module is suitable for industrial systems requiring high-speed, interference-free, and long-distance communication. Key applications include:

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

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

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

• Pharmaceutical & Food Processing: Facilitates accurate 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 communication over long distances.

• EMI Immunity: Optical fiber ensures stable performance in electrically noisy environments.

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

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

• Industrial-Grade Design: Durable and compact, suitable for harsh plant conditions.

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

FAQ

1. Which fiber types are compatible with the ANT401-5E/CU1T?

   Supports single-mode and multimode fibers depending on transmission distance.

2. Does this module support redundant communication paths?

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

3. What is the maximum optical transmission distance?

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

4. How many nodes can be connected via this master module?

   Up to 64 nodes per ESB network segment.

5. Is it compatible with Yokogawa CENTUM VP systems?

   Yes, 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, with self-check functions.

7. Can this module be hot-swapped?

   Yes, replacement is possible without shutting down the system if properly configured.

8. How does it handle transmission errors?

   Uses CRC error detection and automatic retransmission to maintain data integrity.

9. What is the nominal power supply and consumption?

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

10. How is synchronization maintained between multiple nodes?

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