Cybernet IPC-R1ix User Manual page 41

Both mSATA and Mini PCIe share the same form-factor and similar electrical
pin-out assignments on their connectors. There was no clear mechanism to
distinguish if a mSATA drive or a Mini PCIe device is plugged into the socket
43 on mSATA connector as "no connect" instead of "return current path" ( or
GND).
When an mSATA drive is inserted, its pin 43 is "no connect", and the respective
pin on the socket is being pulled-up to logic 1. When a Mini PCIe device is
inserted, its pin 43 forces the respective pin on the socket to ground, or logic 0.
IPC-R1ix using Pin 43 status designed for switching between mSATA
drive and Mini PCIe device.
Status
Pin 43
CN12 Mini PCIe Connector Pin-Out
Pin Signal
No. Name
51 Reserved
49 Reserved
47 Reserved
45 Reserved
43 Status
41 +3.3Vaux
39 +3.3Vaux
37 GND
35 GND
15 GND
13 REFCLK+
11 REFCLK-
9 GND
Mini PCIe card
Logic 0
Pin Signal
No. Name
52 +3.3Vaux
50 GND
48 +1.5V
46 Reserved
44 Reserved
42 Reserved
40 GND
38 USB_D+
36 USB_D-
Mechanical Key
16 Reserved
14 Reserved
12 Reserved
10 Reserved
mSATA drive
Logic 1
Pin Signal
No. Name
33 PETp0
31 PETn0
29 GND
27 GND
25 PERp0
23 PERn0
21 GND
19 Reserved
17 Reserved
7 CLKREQ#
5 Reserved
3 Reserved
1 WAKE#
GETTING TO KNOW YOUR IPC-R1ix
Pin Signal
No.
Name
34 GND
32 SMB_DATA
30 SMB_CLK
28 +1.5V
26 GND
24 +3.3Vaux
22 PERST#
20 reserved
18 GND
8 Reserved
6 1.5V
4 GND
2 3.3Vaux
35