Quectel EC2 Series User Manual

LTE Module Series
EM05 Hardware Design
EM05_Hardware_Design Confidential / Released 17 / 59
28
GPIO_8-
AUDIO_3
PCM_SYNC
IO
PCM data frame synchronization
signal
1.8V
29
SSIC-TxN
NC
NC
30
UIM-RESET
USIM_RESET
DO
Reset signal of (U)SIM card
1.8V/3.0V
31
SSIC-TxP
NC
NC
32
UIM-CLK
USIM_CLK
DO
Clock signal of (U)SIM card
clock
1.8V/3.0V
33
GND
GND
Ground
34
UIM-DATA
USIM_DATA
IO
Data signal of (U)SIM card data
1.8V/3.0V
35
SSIC-RxN
NC
NC
36
UIM-PWR
USIM_VDD
PO
Power supply for (U)SIM card
1.8V/3.0V
37
SSIC-RxP
NC
NC
38
N/C
NC
NC
39
GND
GND
Ground
40
GPIO_0
(GNSS_SCL)
I2C_SCL
DO
I2C serial clock
Used for external codec
Pulled up to
1.8V internally
41
N/C
NC
NC
42
GPIO_1
(GNSS_SDA)
I2C_SDA
IO
I2C serial data
Used for external codec
Pulled up to
1.8V internally
43
N/C
NC
NC
44
GPIO_2
(GNSS_IRQ)
GNSS_IRQ*
DI
1.8V
45
GND
GND
Ground
46
GPIO_3
(SYSCLK)
RESERVED
Reserved
47
N/C
NC
NC
48
GPIO_4
(TX_BLANKING)
TX_BLANKING*
DO
Tx blanking signal for external
GNSS module
1.8V
49
N/C
NC
NC
50
N/C
NC
NC
51
GND
GND
Ground
52
N/C
NC
NC
Quectel
Confidential

Quectel EC2 Series Specifications

General

Brand	Quectel
Model	EC2 Series
Category	Control Unit
Language	English