INTRODUCTION
J2, J3: COM Express Type 2 Connectors
The Type 2 connectors come in two 220-pin 0.5mm pitch receptacles.
They include PCI, IDE, GBE and up to 22 general-purpose PCIE lanes
(PCIE 0-5 and PCIE 16-31). For most Type 2 implementations, it is
expected that PCIE lanes 16-31 are used for graphics. Hence they are
designated PEG lanes 0-15 in the following table. Modules
implementing Pin out Type 2, such as the ET900, uses the pin-out
shown.
ET900 User’s Manual 7