Product Description
The ANB11D-425/BU2A is a specialized expansion node for the Yokogawa CENTUM VP system, engineered for long-distance I/O distribution. Unlike conventional copper-based nodes, this unit integrates an optical repeater interface, enabling communication over fiber optic cabling. This design ensures complete electrical isolation and immunity to electromagnetic interference, making it ideal for demanding industrial environments.
Equipped with a dual-redundant 220–240 V AC power supply, the unit maintains continuous operation under fault conditions. By utilizing the optical ESB bus, it supports reliable data transmission over distances ranging from 5 km up to 50 km (depending on system configuration and optical modules).
The ANB11D-425/BU2A serves both as a communication hub and a power platform for locally installed I/O modules within a standard 19-inch rack system.
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Primary Function: Optical ESB bus node for long-distance I/O expansion
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Communication Medium: Fiber optic (EMI-immune, fully isolated)
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Power Supply: Dual-redundant AC (220–240 V AC)
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Distance Capability: Up to 50 km (system dependent)
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Installation: 19-inch rack mount (8U height)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Designation | ANB11D-425/BU2A |
| Primary Function | Optical ESB Bus Node Unit (dual-redundant) |
| Power Supply Configuration | Dual-redundant (active-active) |
| Input Voltage | 220–240 V AC (50/60 Hz) |
| Optical Interface | BU2A (optical ESB repeater master/slave) |
| Transmission Distance | Up to 50 km (depending on modules) |
| Explosion Protection | Basic type (no explosion protection) |
| Module Capacity | 8 I/O module slots |
| Communication Media | Fiber optic (single-mode or multi-mode) |
| Mounting | 19-inch rack mount (8U) |
| Operating Temperature | 0 to 50°C |
Deployment Applications
The ANB11D-425/BU2A is ideally suited for geographically dispersed industrial systems, including offshore platforms, large refineries, and water treatment networks.
By converting ESB signals into optical format, it allows I/O cabinets to be installed kilometers away from the main control room without signal degradation, grounding issues, or susceptibility to electromagnetic interference common in long copper cable runs.
Technical FAQ
Q: What is the advantage of the BU2A option on this node?
A: The BU2A option enables integration with optical repeater modules, extending the ESB bus from short copper distances (~10 meters) to long-range fiber communication up to tens of kilometers.
Q: Does this unit support G3 environmental protection?
A: No. The ANB11D-425/BU2A is a basic-type unit. For corrosive environments requiring ISA G3 protection, a different model suffix must be selected.
| 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 |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| 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. |
| Q: What Shipping Methods Do We Use? |
| 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. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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