Home
Quectel
GSM/GPRS Modules
M20
Quectel M20 User Manual
4
of 1
of 1 rating
29 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
M
2
0
E
V
B
U
s
e
r
G
u
i
d
e
3.8.3
J3 test points
Figure 15: J3 test points
Table 12: Pins of J3
Pin
Signal
I/O
Description
1
RXDDAI
I
Receive digital audio data
2 SIM_PRESENCE
I
SIM
card
detection
3
TXDDAI
O
Transmit digital audio data
4 NETLIGHT
O
Network
status indication
5 TFSDAI
O
Frame
synchronization
6 Reserve
7 SCLK
O
Serial
bit
clock
8 ADC
I
ADC
input
9 Reserve
10 VRTC
I/O
Module
R
TC
M20_EVB_UGD_V1.01
-
2
1
-
Quectel
21
23
Table of Contents
Table of Contents
3
Revision History
6
Introduction
7
Related Documents
7
Safety Caution
7
EVB Kit Introduction
9
EVB Top and Bottom View
9
EVB Accessory
11
Interface Application
12
Power Interface
12
Audio Interface
13
SIM Card Interface
14
Antenna Interface
15
Serial Ports
16
Switches and Buttons
17
Operating Status LED
18
Test Points
19
J1 Test Points
20
J2 Test Points
21
J3 Test Points
22
VDD_EXT and VBAT Test Points
23
EVB and Accessories
24
Illustration
25
Power on Operations
25
Communicate with the Module
25
Firmware Upgrade
25
Turn off
26
Emergency off
26
PIN Assignment of B2B Connector
27
4
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the Quectel M20 and is the answer not in the manual?
Ask a question
Quectel M20 Specifications
General
Brand
Quectel
Model
M20
Category
GSM/GPRS Modules
Language
English
Related product manuals
Quectel M10
32 pages
Quectel MC60
11 pages
Quectel BG95-M3
84 pages
Quectel GSM/GPRS Module Series
28 pages
Quectel EG25-G
103 pages
Quectel BC66
31 pages
Quectel SC200E Series
116 pages
Quectel L89 R2.0
26 pages
Quectel AF20
58 pages
Quectel LPWA Series
91 pages
Quectel BG950A-GL
91 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
