The second problem concerns CompactPCI (cPCI) backplanes. Industry standard cPCI bus connectors with PICMG 3.16 are limited to a maximum speed of 1.5Gbps per differential pair. Legacy systems using cPCI applications are transitioning to higher speeds with ATCA and MicroTCA (respectively Advanced and Micro Telecommunications Computing Architectures). However, to achieve these higher speeds requires a disruptive backplane upgrade.

