Product Description
The ANB11D-225/BU2B is a high-reliability node unit engineered for the Yokogawa CENTUM VP distributed control system. It serves as a critical communication link in expanded DCS architectures, enabling long-distance connectivity through an integrated optical repeater supporting up to 5 km transmission.
This capability allows I/O module clusters to be deployed far from the main Field Control Unit (FCU) without compromising signal integrity or communication speed.
To ensure maximum system uptime, the unit incorporates a dual-redundant power supply configuration. In the event of a primary power failure, the secondary supply maintains uninterrupted operation, safeguarding continuous process data transmission.
The BU2B connector assembly includes a built-in ESB bus terminator, ensuring proper signal management at the end of the communication segment. As a Basic type unit, it is designed for general industrial environments where explosion protection is not required but high-performance communication is essential.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | ANB11D-225/BU2B |
| Equipment Function | Node Unit for dual-redundant ESB Bus with optical repeater |
| Transmission Range | Optical fiber up to 5 km |
| Power Supply Architecture | Dual-redundant 220–240 V AC |
| AC Frequency | 50/60 Hz |
| Connector Interface | BU2B connector unit with built-in terminator |
| Communication Protocol | Synchronous ESB Bus |
| Explosion Protection | Basic type (none) |
| Installation Format | 19-inch rack mounting |
| Hardware Capacity | Supports multiple I/O module slots |
| Temperature Tolerance | Standard CENTUM VP industrial operating range |
Application Context
The ANB11D-225/BU2B is ideally suited for large and geographically distributed industrial facilities where long-distance communication is required. Typical applications include:
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Water treatment plants
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Offshore oil and gas platforms
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Large-scale chemical processing facilities
By utilizing fiber optic communication, the unit provides high immunity to electromagnetic interference (EMI), ensuring stable and reliable data transmission across extended distances.
FAQ
Does the /BU2B connector include a terminator?
Yes, the BU2B connector unit includes an integrated ESB bus terminator, ensuring proper impedance matching and minimizing signal reflection at the end of the communication line.
What type of fiber optic cable is required for the 5 km range?
The unit supports both multi-mode and single-mode fiber depending on the optical module configuration. It is designed to comply with standard CENTUM VP optical communication requirements for long-distance node connections.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
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| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
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