Doc. No: Unex-QSG-21-001
16/27
A printed version of this document is an uncontrolled copy
© 2021 Unex Technology Corporation – Company Confidential
Figure 12: Mini PCIe Port (J6)
Table 9: Mini PCIe pinout (J6, Row 0)
Pin
Symbol
I/O
Level (V)
Description
J6.1
WAKE#
I
OC
Sierra MC series: Wake host. (OC output. Active LOW)
J6.3
5V
O
5.0
5V power output for SOM-301
J6.5
5V
O
5.0
5V power output for SOM-301
J6.7
NC
-
-
Not connected
J6.9
GND
G
-
Ground
J6.11
NC
-
-
Not connected
J6.13
NC
-
-
Not connected
J6.15
GND
G
-
Ground
-
KEY
-
-
Mechanical Key
J6.17
UART2_TX
O
3.3
UART transmit data output for SOM-301
J6.19
UART2_RX
I
3.3
UART transmit data input for SOM-301
J6.21
GND
G
-
Ground
J6.23
NC
-
-
Not connected
J6.25
NC
-
-
Not connected
J6.27
GND
G
-
Ground
J6.29
GND
G
-
Ground
J6.31
NC
-
-
Not connected
J6.33
NC
-
-
Not connected
J6.35
GND
G
-
Ground
J6.37
GND
G
-
Ground
J6.39
3.3 Vaux
O
3.3
Max 1100mA
J6.41
3.3 Vaux
O
3.3
Max 1100mA
J6.43
GND
G
-
Ground
J6.45
5V
O
5
5V power output for SOM-301
J6.47
5V
O
5
5V power output for SOM-301
J6.49
1PPS
O
3.3
GNSS 1 pulse per second input
J6.51
TAMPER#
O
3.3
0=Tamper tripped, 1=Normal operation.
SW3.2 ON: J6.51 close to OBU-301(v2)/OBU-351 tamper
SW3.2 OFF: J6.51 open from OBU-301(v2)/OBU-351 tamper
Table 10: Mini PCIe pinout (J6, Row 1)
Pin
Symbol
I/O
Level (V)
Description
J6.2
3.3 Vaux
O
3.3
Max 1100mA
J6.4
GND
G
-
Ground
J6.6
NC
-
-
Not connected
J6.8
UIM PWR
O
3.0/1.8
SIM card power
J6.10
UIM_DATA
I/O
3.0/1.8
SIM card data
J6.12
UIM_CLK
O
3.0/1.8
SIM card clock
