GE Fanuc A16B-1200-0220 Memory Expansion Board

The GE Fanuc A16B-1200-0220, also cataloged as the A16B-1200-0220 Memory Expansion Board, operates as a dedicated hardware component for part program and macro data storage within GE CNC control platforms. It mounts directly into system memory slots via a 64-pin DIN connector to deliver non-volatile Static RAM retention for machining sequence instructions.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Communication and Deterministic Processing Profiles

The module leverages high backplane bus communication velocity across its 64-pin DIN interface to achieve a 150 ns access time. Onboard address decoders and bus drivers optimize I/O density scaling during continuous part program execution, eliminating data retrieval wait states. Full firmware flash compatibility ensures direct bus handshaking with the primary CNC processor during execution loops.

Frequently Asked Questions

Q: How is data preserved on the A16B-1200-0220 board when main system power is turned off?

A: An onboard 3V BR2330 lithium battery powers the Static RAM chips, sustaining data retention for up to 6 months during extended machine shutdowns.

Q: What action should be taken when the red status LED illuminates?

A: The red LED signals a low battery condition. The BR2330 battery must be replaced while control power is energized to prevent loss of stored part programs and macro data.

Field Installation Guidelines

1. Power down the CNC cabinet and perform Lockout/Tagout (LOTO) protocols prior to board insertion or removal.
2. Wear a properly grounded ESD wrist strap before handling the printed circuit board.
3. Align the 64-pin DIN connector with the designated CNC motherboard slot guide rails.
4. Push the board firmly into place until the locking clips engage completely.
5. Verify that the battery installation polarity is correct and inspect the red LED status upon re-energizing the controller.