The Allen Bradley product, 8520-32EMB, is an enhanced motherboard. It is one of the CNC parts of the Allen Bradley’s products. The 8520-32EMB is from the 9/series of CNC parts. From amongst the 9/260 and 9/290 motherboards, the 8520-32EMB represents the 9/290 motherboard. The component enclosure of these CNC parts supports all in all the system, CPU boards, power supply and the servo modules. The component enclosure supports both digitals as well as analog servo modules. It also includes this Allen Bradley product, the 8520-32EMB, which is an enhanced motherboard. The 8520-32EMB is attached to the back wall of its enclosure and the CPU is connected to it to process all the software functions of the control. This 8520-32EMB motherboard has red and green LEDs that indicate the overall status of the power and the operations. The signals are sent to the 8520-32EMB via the fiber optic I/O ring. This connection provides a serial communication with the control. The part programs and the tool offsets are stored in the RAM on the motherboard that is the 8520-32EMB. If a hardware failure takes place, the 8520-32EMB must be replaced. When replacing the 8520-32EMB, line the board with the guide tracks on the top as well as bottom panels of the enclosure. The standard 8520-32EMB, if discharging at 40 degrees Celsius, discharges in about three years, while the 8520-32EMB with an extended program storage, if being released at a similar rate, discharges in 1 year. A lithium battery connector is connected to the 8520-32EMB.