Changes
=== FACET Card Electrical Interface ===
FACET Card interface based on regular mini PCI Express interface featuring extended signals and functionality, as legacy LPC Bus interface and additional PCI Express lanes.
''fitlet mini PCI Express edge connector pinout''
{| style="width: 100%; height: 200px;" border="1" cellpadding="10" cellspacing="0" align="center"
| 3.3V power rail
|}
=== FACET Card Mechanical Interface ===
As noted in the previous section, FACET interface based on standard mini PCI express connection, electrical as well as mechanical, meaning all mechanical and layout guidelines apply for FACET mechanical design.
PCB shape of custom FACET derived from fitlet-X PCB design, mechanical stack-up and other mechanical constraints, shown in the DXF file below. The file can be downloaded from product wiki portal.
''FACET LAN DXF file''
[[File:FACET_LAN_DXF_file.png]]
FACET PCB design should meet mini PCI Express design guidelines in terms of edge connector design (hard gold fingers), PCB thickness, other parameters, and follow general recommendations described in PCI express mini card electromechanical specification 1.2.
