FANUC A20B-2002-0680 Power Mate-I Backplane PCB

Overview

The A20B-2002-0680 is a FANUC backplane PCB in the A20B-2002 family.

Public product listings consistently identify it as a backplane board or Power Mate control backplane PCB, and multiple sources specifically describe it as PCG - back panel for Power Mate-I CNC.

That gives the board a clear role in the structural hardware section of the installed control.

This type of board is used where the original control hardware already depends on the Power Mate-I internal backplane arrangement.

In service work, backplane boards are matched by exact control family and board position because they define how compatible boards are supported and arranged inside the control unit. Keeping the same model helps preserve the original hardware layout.

Technical Data

Application Value

This board is suited to installed FANUC Power Mate-I CNC hardware where the original system already uses the A20B-2002 backplane structure.

It is especially relevant in machine restoration, board-structure replacement, and control-hardware repair where the slot and support structure inside the unit must remain unchanged.

Because public listings identify it specifically as a Power Mate-I control backplane PCB, it should be matched by exact control family and board role.

That is the key to preserving the original internal arrangement of the CNC unit.

Selection Notes

The key checks are the exact part number, the A20B-2002 family, and the board’s public identification as a Power Mate-I backplane / PCG back panel.

Those details define whether the replacement matches the installed control structure.

FAQ

Q1: What kind of board is A20B-2002-0680?
It is a FANUC backplane PCB. Public industrial listings identify it as a backplane board and more specifically as PCG - back panel for Power Mate-I CNC.

That means it belongs to the internal structural side of the control rather than to a CPU, I/O, or memory function.

Q2: Why is the Power Mate-I reference important?
Because the public product descriptions tie this board directly to Power Mate-I hardware. That is the clearest control-family reference for the board, and it is one of the most important compatibility checks when replacing a structural control PCB.

Q3: What does “backplane board” mean here?
It means the board is part of the internal support and interconnection structure of the control unit.

A backplane board is not a general accessory PCB; it belongs to the internal board arrangement of the control hardware and supports the correct placement of related boards inside the unit.

Q4: Why does exact model matching matter on this part?
Because backplane boards are tied to the original internal control structure.

Public sources identify A20B-2002-0680 specifically as the Power Mate-I control backplane PCB, so the correct replacement approach is to preserve that exact board role and family.

Q5: What should be checked before ordering?
Check the installed part number, confirm the machine uses A20B-2002-0680, and verify that the control hardware is the same Power Mate-I backplane / PCG back panel configuration. Those are the main compatibility points supported by the published references for this model.