HUAWEI MG323 GSM M2M Module

 

 

 

 

Hardware Guide

 

 

Electrical and Reliability Features

 

 

 

 

 

 

 

 

Pin No.

Signal Name

Pin No.

 

Signal Name

 

 

 

 

 

 

 

 

 

11

GND

12

 

INTMIC_P

 

 

 

 

 

 

 

 

 

13

NC

14

 

EXTMIC_P

 

 

 

 

 

 

 

 

 

15

NC

16

 

EXTMIC_N

 

 

 

 

 

 

 

 

 

17

NC

18

 

GND

 

 

 

 

 

 

 

 

 

19

NC

20

 

TERM_ON

 

 

 

 

 

 

 

 

 

21

NC

22

 

RESET

 

 

 

 

 

 

 

 

 

23

NC

24

 

UART1_DCD

 

 

 

 

 

 

 

 

 

25

LED_STATUS

26

 

NC

 

 

 

 

 

 

 

 

 

27

NC

28

 

UART1_CTS

 

 

 

 

 

 

 

 

 

29

UART1_RD

30

 

NC

 

 

 

 

 

 

 

 

 

31

NC

32

 

UART1_DTR

 

 

 

 

 

 

 

 

 

33

UART1_TD

34

 

UART1_RTS

 

 

 

 

 

 

 

 

 

35

VCOIN

36

 

UART1_DSR

 

 

 

 

 

 

 

 

 

37

NC

38

 

UART1_RING

 

 

 

 

 

 

 

 

 

39

NC

40

 

VIO

 

 

 

 

 

 

 

 

 

41

GND

42

 

VBAT

 

 

 

 

 

 

 

 

 

43

GND

44

 

VBAT

 

 

 

 

 

 

 

 

 

45

GND

46

 

VBAT

 

 

 

 

 

 

 

 

 

47

GND

48

 

VBAT

 

 

 

 

 

 

 

 

 

49

GND

50

 

VBAT

 

 

 

 

 

 

 

 

Table 5-4lists electrical features (typical values) measured when no external device is connected to the MG323 module through the 50-pin B2B interface.

Table 5-4Electrical features of application interfaces

 

Function

Signal Name

I/O

 

Waveform and

Remarks

 

 

 

 

 

 

 

Level

 

 

 

 

 

 

 

 

 

 

 

 

Power supply

VBAT

P

 

VI=3.30 V to 4.80

Pins 42, 44, 46, 48, and 50 are power supply

 

 

interface

 

 

 

V

pins used to supply the MG323 module with

 

 

 

 

 

 

VItypical=3.80 V

power. When the module transmits signals at

 

 

 

 

 

 

the maximum power, the transient current can

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reach about 2 A, which may result in VBAT

 

 

 

 

 

 

 

 

voltage great drop. The VBAT power voltage

 

 

 

 

 

 

 

for the MG323 module should not be lower

 

 

 

 

 

 

 

 

than 3.3 V.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Issue 06 (2013-06-13)

 

Huawei Proprietary and Confidential

37

 

 

Copyright © Huawei Technologies Co., Ltd.

 

 

 

 

 

 

Page 37
Image 37
Huawei MG323 manual Function Signal Name Waveform Remarks Level, Power supply, Voltage great drop. The Vbat power voltage