The A03B-0819-C001 ABU10A is a 10-slot I/O backplane that serves as the foundation for building custom I/O racks in FANUC 16i, 18i, and 21i Model B control systems. Each slot accepts standard FANUC I/O modules including digital input, digital output, analog, and specialty modules. The backplane provides power distribution, communication bussing, and module addressing for all installed I/O cards. When paired with the AIF01A interface module, this backplane becomes the central hub connecting all machine I/O to the CNC processor.
Technical Specifications
| Part Number | A03B-0819-C001 |
| Manufacturer | FANUC Corporation |
| Product Type | 10-Slot Backplane (ABU10A) |
| Product Series | 16i/18i/21i Model B I/O |
| Input Voltage | 24 VDC |
| Input Points | 16 / 32 points |
| Output Points | 16 / 32 points |
| Response Time | ~20 ms |
| Isolation | Photo-coupler isolated |
| Connection | Screw terminal / Connector |
| Mounting | DIN rail / Backplane |