D602 - Triple-Redundant 6U CompactPCI® PowerPC® SBC


duagon Germany GmbH

Melanie Heber
Head of Marketing Communication
The D602 is a 6U CompactPCI® 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 D602 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.

All I/O is realized in FPGAs (SEU-resistant, developed according to DO-254) and available on the system's rear connectors. Additionally, the D602 offers two PMC slots. One universal PMC slot with front I/O (product revisions -02 and later also with rear I/O) and a customized slot for an AFDX® PMC with rear I/O only. A second D602 can be connected to build a high reliability cluster. The two D602s exchange data via a sextuple UART connection and a BMCX link.
CompactPCI® CompactPCI® > (Compact PCI) Processor Boards