Huawei ME909s-821 - Page 16

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