This part of IEC 60297 defines the interface dimensions between subracks and associated
plug-in units using connectors as defined in PICMG-MTCA.0 (Fixed board, see Figure 7) and
IEC 61076-4-116 (Two part, see Figure 12) and other two part connectors, (see Figure 15).
For mechanical and climatic tests refer to IEC 61587-1.
For electromagnetic shielding performance tests refer to IEC 61587-3.