Wincomm WLP-7A20 Series, User Manual

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J18, J21 – mini PCI Express Socket
Pin # Signal Description Pin # Signal Description
1 WAKE# 2 +3.3VSB
3 Reserved 4 GND
5 Reserved 6 +1.5VS
7 CLKREQ# 8 Reserved
9 GND 10 Reserved
11 REFCLK- 12 Reserved
13 14 Reserved
15 GND 16 Reserved
17 Reserved 18 GND
19 Reserved 20 Reserved
21 GND 22 PERST#
23 PERn0 24 +3.3VSB
25 PERp0 26 GND
27 GND 28 +1.5VS
29 GND 30 SMB_CLK
31 PETn0 32 SMB_DATA
33 PETp0 34 GND
35 GND 36 USB_D-
37 GND 38 USB_D+
39 +3.3VSB 40 GND
41 +3.3VSB 42 Reserved
43 GND 44 Reserved
45 CL_CLK 46 Reserved
47 CL_ DATA 48 +1.5VS
49 Controller Link RST# 50 GND
51 Reserved 52 +3.3VSB