User's Manual
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IoT Module
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Table Of Contents
1 About this document
1.1 Scope of applications
1.2 Writing purpose
1.3 Support and reference documentation list
1.4 Abbreviations
2 Abstract
3 Power Supply
4 Key Description
4.1 Power on/off and RESET key
4.2 FORCED USB download key
4.3 WATCHDOG key
5 Application interface
5.1 UART DB9 Interface
5.2 USB（AT UART）Interface
5.3 USB（DEBUG UART）Interface
5.4 USB 2.0 Interface
5.5 SIMCard Interface
5.6 Headset Interface
5.7 Antenna interface
5.8 Audio interface（TBD）
5.9 LED indicating lamp
5.10 The others
6 Accessories and Assembly
6.1 EVB Assembly
6.2 EVB Accessory
6.3 Driver install
6.4 Dial configuration
空白页面
L720
EVB
User
Manu
al
Copyright©
Shanghai
Mob
iletek
Communication
Ltd
11
Normally
on,
the
wa
tchdog
function
is
enabled,
the
syste
m
will
fe
ed
the
do
g
re
gularly
.
The
watchdo
g
button
is
mainly
u
sed
for
software
debug.
Figure
4-3
：
WDOG
k
ey
1
...
...
11
12
13
14
15
...
...
33
