Huawei ME906s LTE M.2 - Page 13

HUAWEI ME906s LTE M.2 Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2019-03-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13
Table 3-1 Definitions of pins on the M.2 interface
Pin
No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
1
CONFIG_3
O
Connected to Ground
internally.
-
-
0
-
The
module is
configured
as WWAN-
SSIC 0.
2
3.3V
PI
Power supply
-
3.135
3.3
4.4
-
3
Ground
PI
Ground
-
-
0
-
-
4
3.3V
PI
Power supply
-
3.135
3.3
4.4
-
5
Ground
PI
Ground
-
-
0
-
-
6
Power_On_Off
I
A single control to turn
On/Off WWAN.
When it is Low, WWAN is
powered off.
When it is High, WWAN is
powered on.
It is internally pulled to
Low.
It is 3.3 V tolerant but can
be driven by either 1.8 V or
3.3 V GPIO.
V
IH
1.26
-
3.6
The
module is
pulled
down
inside by a
1 MΩ
resistor.
V
IL
–0.3
-
0.3
7
USB_D+
I/O
USB Data + defined in the
USB 2.0 specification
-
-
-
-
-
8
W_DISABLE#
I
WWAN disable function
When it is High, WWAN
function is determined by
software AT command.
Default enabled.
When it is Low, WWAN
function will be turned off.
V
IH
1.26
-
3.6
-
V
IL
–0.3
-
0.3
9
USB_D-
I/O
USB Data - defined in the
USB 2.0 specification
-
-
-
-
-
10
LED#
O
It is an open drain, active
low signal, used to allow
the M.2 card to provide
status indicators via LED
devices that will be
provided by the host.
V
OL
0
-
0.48
The
maximum
I
OL
is 40
mA.
11
Ground
PI
Ground
-
-
0
-
-
12
Notch
-
-
-
-
-
-
-
13
Notch
-
-
-
-
-
-
-