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HUAWEI ME909s Series LTE Mini PCIe Module
Hardware Guide
Pin Name
Mini PCI
HUAWEI
Pin
Express
Pin
No.
Standard
Description
Description
29
GND
GND
30
SMB_CLK
NC
31
PETn0
NC
32
SMB_DATA
NC
33
PETp0
NC
34
GND
GND
35
GND
GND
36
USB_D-
USB_DM
37
GND
GND
38
USB_D+
USB_DP
39
3.3Vaux
VCC_3V3
40
GND
GND
41
3.3Vaux
VCC_3V3
42
LED_WWA
LED_WWA
N#
N#
43
GND
GND
44
LED_WLAN
USIM_DET
#
45
Reserved
PCM_CLK
46
LED_WPAN
NC
#
47
Reserved
PCM_DOU
T
Issue 02 (2016-09-07)
Pad
Description
Type
-
Ground
-
Not connected
-
Not connected
-
Not connected
-
Not connected
-
Ground
-
Ground
I/O
USB signal D-
-
Ground
I/O
USB signal D+
PI
3.8 V DC supply
input
-
Ground
PI
3.8 V DC supply
input
O
Mode indicator
current sink
Drive strength: 10
mA
-
Ground
I
USIM hot swap
detection pin.
When it is High,
USIM is present.
When it is Low,
USIM is absent.
O
PCM interface clock
-
Not connected
O
PCM I/F data output
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Min.
Typ.
Parameter
(V)
(V)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3.2
3.8
-
-
-
-
3.2
3.8
-
-
-
-
-
-
V
1.62
1.8
IH
V
0
-
IL
–0.3
V
0
OL
V
1.35
1.8
OH
-
-
-
–0.3
V
0
OL
V
1.35
1.8
OH
Max.
Comment
(V)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4.2
-
-
-
4.2
-
-
-
-
-
1.98
The signal is
internally
pulled up.
Keep
0.18
USIM_DET
floating, if it
is not used.
0.45
-
1.98
-
-
-
0.45
-
1.98
-
16
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