Product manual

PCI Express to PMC adapter Copyright © 2011, Technobox, Inc
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PMC connectors JN1, JN2 JN3 and JN4.
The four PMC connectors are each 64 pins and are mechanically identical.
JN1 and JN2 carry the 32 bit PCI bus signals. JN3 carries the 64 bit PCI bus signals.
JN4 is not part of the PCI bus, but connects user IO to connector J1.
The locations shown for pins 1,2,63 and 64 on JN4 are consistent for the other three connectors
Figure 6 JN1, JN2, JN3 and JN4