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Yokogawa ANT421 Fiber Optic Bus Repeater Master Module

  • Manufacturer: Yokogawa
  • Product Number: ANT421
  • Condition: New & In Stock
  • Product Type: Fiber Optic Bus Repeater Master Module
  • Origin: Japan
  • Payment Methods: T/T, Western Union
  • Dimensions: 142.5 x 130 x 32.8mm
  • Weight: 0.3kg
  • Shipping Port: Xiamen, China
  • Lead Time: 1-3 Working Days
  • Warranty: One Year
  • Certificate: COO
  • Courier partners: DHL, UPS, TNT, FedEx and EMS.

Product Detail

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Company Information
e-mail sales@industrial88.com
Mobile +8617350837383
Whatsapp +8617350837383
WeChat 17350837383
Add to Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China

Yokogawa ANT421 Fiber Optic Bus Repeater Master Module


Product Overview

The Yokogawa ANT421 Fiber Optic Bus Repeater Master Module is a key component in industrial communication networks, designed to enhance the data transmission capabilities of OmegaBus systems. This module provides high-speed, reliable data transfer over extended distances by utilizing fiber optic technology. As a repeater and master module, the ANT421 not only amplifies and regenerates signals but also acts as the master controller for communication between multiple slave modules.

Ideal for industries requiring large-scale, distributed control systems, such as oil & gas, chemical, power generation, and manufacturing, the ANT421 ensures continuous, real-time data flow even in harsh environmental conditions. It facilitates long-distance communication, minimizing data loss and ensuring signal integrity over extended networks.

Key Features

  • Long-Distance Communication: Transmits data over significant distances using fiber optic cables, minimizing signal loss and degradation.

  • Master and Repeater Functionality: Acts as both the master controller and signal repeater, ensuring robust communication across the network.

  • High-Speed Data Transfer: Supports data transmission speeds of up to 1 Mbps, essential for real-time monitoring and control.

  • Signal Regeneration: Amplifies and regenerates signals to extend the communication range, maintaining reliability across the network.

  • Industrial-Grade Durability: Built to withstand extreme conditions, with protection against electrical interference and harsh environmental factors.

  • Easy Integration: Compatible with Yokogawa’s OmegaBus system and other fiber optic communication networks, providing seamless system expansion.

Technical Specifications

3.1 Dimensions and Weight

Item Specification
Dimensions 142.5 x 130 x 32.8mm
Weight 0.3 kg

3.2 Electrical Characteristics

Item Specification
Input Voltage 24 V DC
Power Consumption 4 W (Max)
Output Type Fiber Optic
Communication Speed 1 Mbps

3.3 Environmental Characteristics

Item Specification
Operating Temp -20°C to +60°C
Storage Temp -40°C to +85°C
Humidity Range 5% to 95% RH, non-condensing
Protection Class IP20

3.4 System Compatibility

Item Specification
Compatible Systems Yokogawa OmegaBus System and compatible industrial communication networks
Mounting Type DIN Rail or Panel Mountable
Communication Protocol Fiber Optic Bus Communication (OmegaBus)

Industry Applications

  • Oil & Gas: Supports long-distance data transmission for remote field devices, improving safety and operational efficiency in oil rigs, offshore platforms, and pipelines.

  • Power Generation: Enables reliable communication between distributed systems in power plants, ensuring the efficient operation of turbines, boilers, and other critical equipment.

  • Chemical Manufacturing: Provides robust, high-speed communication for control systems in chemical processing plants, ensuring real-time data transmission for optimized process control.

  • Automated Manufacturing: Facilitates communication in automated manufacturing systems, improving production control, and system reliability.

  • Water Treatment: Enhances communication for remote or geographically dispersed water treatment facilities, ensuring timely and accurate data transfer.


The Yokogawa ANT421 Fiber Optic Bus Repeater Master Module offers a reliable and scalable solution for high-speed data communication in industrial environments. Its fiber optic capabilities ensure long-distance, high-performance communication, while the master module functionality simplifies network control. This module is an ideal choice for large-scale automation systems, ensuring seamless integration with Yokogawa’s OmegaBus system and supporting the growing demands of modern industrial networks.

Yokogawa ANT421 Fiber Optic Bus Repeater Master Module is in stock. Please contact us for a quick quote and competitive pricing.

Company Information
e-mail sales@industrial88.com
Mobile +8617350837383
Whatsapp +8617350837383
WeChat 17350837383
Add to Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China


Company Introduction

Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.

We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.

Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.

Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia

Our Mission

Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.

Does this product come with a warranty?

We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.

How to Verify Products Before Purchase?

We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.

How long does shipping take?

Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.

What is the minimum order quantity (MOQ)?

The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.

Can I get discounts for bulk purchases of products?

Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.

What payment methods do you accept for wholesale orders?

We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.

Can I purchase different quantities of a product?

Yes, we offer flexible ordering options for both small and large quantities. Whether you\\\\\\\\\\\\\\\’re looking for a single unit or a large batch, we can accommodate your needs.

Are there any discounts or promotions available for new wholesale customers?

We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.

When purchasing a product, how can I ensure compatibility with my existing systems?

If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.

Can I return the goods I received if they do not meet our requirements?

Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\’s responsibility.

Do you provide technical support or installation services to wholesale customers?

Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.

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