Description
The FANUC A20B-2101-0390/06A is a high-precision printed circuit board engineered for integration within Fanuc i-Series CNC Control Systems. This specific iteration belongs to the 16i, 18i, and 21i Model B control architectures, serving as a critical interface or processing module for high-speed machine tool operations. As an Original Engineering component, it ensures seamless Technical Compatibility with existing Fanuc backplane configurations.
Technical Parameters:
Manufacturer: Fanuc Corporation
Model Number: A20B-2101-0390/06A
Series: 16i / 18i / 21i Model B
Component Type: CNC System Control Board
Logic Voltage: 5V DC / 24V DC (System Dependent)
Layer Count: Multi-layer high-density interconnect (HDI)
Mounting Type: Plug-in Module
Dimensions: 200mm x 150mm x 25mm
Weight: 0.35 kg
Operating Temperature: 0°C to 55°C
Storage Temperature: -20°C to 80°C
Humidity: 10% to 95% RH (Non-condensing)
Certifications: CE, UL, RoHS Compliant
Country of Origin: Japan
Functional Role and System Architecture:
This circuit board functions as a core logic processing unit within the CNC rack. It is responsible for executing complex motion control algorithms and managing high-speed data exchange between the CPU and peripheral I/O modules. The 06A revision indicates specific hardware optimizations for signal stability and reduced electromagnetic interference (EMI) in heavy industrial environments.
Industrial Application and Problem Solving:
In high-volume automotive or aerospace machining, signal latency or board failure results in catastrophic downtime. The A20B-2101-0390/06A is designed for 24/7 continuous operation cycles. Replacing aged or faulty boards with this original Japanese-manufactured component restores the machine’s lifecycle value and ensures the precision of axis interpolation, preventing scrapped parts due to control-level positioning errors.
Logistics and Procurement:
Condition: Refurbished / New Surplus (Verified Quality)
Lead Time: Immediate dispatch available for global shipping
Compatibility Guarantee: Direct replacement for A20B-2101-0390 series modules
Packaging: Anti-static shielding with industrial-grade cushioning
Key Attributes
Place of Origin: Japan
Model Number: A20B-2101-0390/06A
Brand Name: FANUC
Certification: Ce
WARRANTY: 1 YEAR
Condition: 100% Original
Packaging and Delivery
Selling Units: Single item








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