A20B-3900-0165
Fanuc A20B-3900-0165 memory board. 32MB FROM + 3MB SRAM memory fitted into the main board. Normally fitted in 16i, 18i and 21i model B controls.
DNC support these 32MB FROM + 3MB SRAM memory modules. Can either be used as an upgrade or a replacemend for faulty hardware. If you are unsure if this memory board is at fault; then contact us as we can check, inspect your complete control.
Please note because this is a FROM board it contains the main NC-BASIC files for Fanuc O/S. You will need the full system backup to install this board.