VME single board computer
PowerPC®, 1 GHz | A602 MEN Mikro Elektronik

The A602 is a 6U 64-bit VMEbus SBC with advanced safety features that realize the functionality of three redundant systems on a single board. Its complex FPGA-based design helps dramatically lower software development costs as it automatically manages the system's triple-redundant processors and memory. The result: The system's redundant architecture is fully taken advantage of by software designed for a standard single-CPU board.

The A602 is designed for deterministic operation and offers extensive BITE features (e.g., ECC error counters for all types of memory, monitoring of all internal voltages), internal buses with error correction and fault-tolerant (fail-operational) implementation. Its three processors run in lockstep mode with 2-out-of-3 voting implemented in FPGA and software-assisted resynchronization, while its triple redundant dynamic memory automatically corrects upsets caused by cosmic radiation (SEU) and hardware faults. The system is powered by redundant local power supplies with separate power supplies for the three CPUs and the three main memory ranks.