Tennessee Industrial Electronics - fanucworld.com - offers a wide range of FANUC Series 30i/31i/32i Model A/B CNC controls found mainly in the FANUC A16B and A20B product lines. New or refurbished FANUC Series 30i/31i/32i Model A/B Controls come with a 1-Year Warranty. Save more with our core exchange program. The user) and preventing damage to the machine. Precautions are classified into Warnings and Cautions. Series 31i FANUC Series 32i–B 32 –B Series 32i i NOTE. FANUC I/O Unit-MODEL A CONNECTION AND MAINTENANCE MANUAL B-61813E FANUC I/O Unit-MODEL B CONNECTION AND MAINTENANCE MANUAL B-62163E.