A02B-0281-K801 is a FANUC CNC spare part.
It is specifically a backup unit cable used with FANUC CNC controllers.
Details
-
Part Number: A02B-0281-K801
-
Type: Cable for backup unit
-
Function: Connects the backup memory unit to the CNC control system.
-
Typical Use:
-
Backing up CNC parameters
-
Backing up programs (NC programs)
-
Restoring data if the control loses memory
-
Where it is used
This cable is used in FANUC control systems, commonly with:
-
Series 16i / 18i / 21i and similar CNC controls
-
Maintenance or service when connecting an external backup device.
Practical example
Technicians use this cable when they:
-
Save machine parameters
-
Save ladder / PMC data
-
Backup CNC programs before battery change or board replacement.
✅ In short:
A02B-0281-K801 = FANUC backup unit cable for CNC data backup.
If you want, I can also explain the other part numbers you sent earlier (like A87L-0001-0173#32MBA / #48MBA / #64MB / #96MB) and how they work together in the FANUC control system.


