Mini Pci-Express Socket: Cns1 (Optional) - AXIOMTEK SBC86840 Series User Manual

2.4.21 Mini PCI-Express Socket: CNS1 (Optional)

CNS1 is a Mini PCI Express Card Socket to support both a PCI
Express x1 link and a USB 2.0 link. A PCI Express Mini Card can be
applied to either PCI Express or USB 2.0 (or both). The USB 2.0
support will be helpful during the transition to PCI Express, because
peripheral vendors will need time to design their chipsets to have the
PCI Express function. During the transition period, PCI Express Mini
Cards can be quickly implemented by using USB 2.0.
Jumpers and Connectors
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SBC86840 Series All-In-One Mini ITX Board User's Manual
This connector is optional. It is not mounted as a default design.
Pin Description
1 PCIE_WAKE#
3 N.C
5 N.C
7 GND
9 GND
11 PCIE_CLK-
13 PCIE_CLK+
15 GND
17 N.C
19 N.C
21 GND
23 PCIE_RXN
25 PCIE_RXP
27 GND
Pin Description
2 +3.3V
4 GND
6 +1.5 V
8 N.C
10 N.C
12 N.C
14 N.C
16 N.C
18 GND
20 N.C
22 PCIE_RESET#
24 +3.3V_SBY
26 GND
28 +1.5V
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