Overview
The Yokogawa Electric Corporation ANB11D-425/BU2A is a fiber-optic ESB (Enhanced System Bus) node unit designed for distributed control systems. It provides a reliable, high-speed communication interface between field I/O modules and central controllers, supporting long-distance, noise-immune data transmission in industrial automation environments.
General Information
Part Number: ANB11D-425/BU2A
Manufacturer: Yokogawa Electric Corporation
Country of Origin: Japan
Type: Fiber-Optic ESB Bus Node Unit
System Compatibility: Yokogawa ESB / CENTUM series systems
Function: Distributed node communication and I/O integration
Installation: Rack-mounted control system node unit
Communication Medium: Fiber-optic ESB bus architecture
Power Specifications
Operating Power: Supplied via ESB system backplane
Power Consumption: Low-power industrial control module
Voltage Range: System-defined ESB power architecture
Protection: Electrical isolation and surge protection integrated
Status Indicators: LED indicators for power, node status, and communication activity
Communication & Interface
Interface Type: Fiber-optic ESB bus interface
Network Role: High-speed distributed node for process control communication
Compatibility: ESB bus architecture in Yokogawa control systems
Data Handling: Real-time deterministic control data exchange
Diagnostics: Built-in system diagnostics and node status monitoring
Environmental
Operating Temperature: Industrial control room environment
Humidity: Up to 95% RH, non-condensing
Vibration Resistance: Suitable for rack-mounted installation
EMI Protection: High immunity due to fiber-optic transmission
Dimensions & Weight
Dimensions (L × W × H): 482.6 × 221.5 × 205 mm
Weight: 10 kg
Built for mission-critical automation—ensuring stable performance in large-scale control systems.