LTE Module Series
EC20 Mini PCIe Hardware Design
EC20_Mini_PCIe_Hardware_Design Confidential / Released 15 / 36
23
PERn0
RESERVED
—
Reserved
24
3.3Vaux
RESERVED
—
Reserved
25
PERp0
RESERVED
—
Reserved
26
GND
GND
Mini Card ground
27
GND
GND
Mini Card ground
28
1.5V
NC
—
—
29
GND
GND
Mini Card ground
30
SMB_CLK
I2C_SCL
OD
I2C serial clock
31
PETn0
DTR
DI
Sleep mode control
32
SMB_DATA
I2C_SDA
OD
I2C serial data
33
PETp0
RESERVED
—
Reserved
34
GND
GND
Mini Card ground
35
GND
GND
Mini Card ground
36
USB_D-
USB_DM
IO
USB differential data (-)
37
GND
GND
Mini Card ground
38
USB_D+
USB_DP
IO
USB differential data (+)
39
3.3Vaux
VCC_3V3
PI
3.3V DC supply
40
GND
GND
Mini Card ground
41
3.3Vaux
VCC_3V3
PI
3.3V DC supply
42
LED_WWAN#
LED_WWAN#
OC
Active-low LED signal for
indicating the state of the
card
43
GND
GND
Mini Card ground
44
LED_WLAN#
RESERVED
—
Reserved
45
RESERVED
PCM_CLK*
IO
PCM clock signal
46
LED_WPAN#
RESERVED
—
Reserved
47
RESERVED
PCM_DOUT*
DO
PCM data output
48
1.5V
NC
—
—
49
RESERVED
PCM_DIN*
DI
PCM data input
Quectel
Confidential
