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3.6.4. Mo
onitor the
Power Su
You can us
se the AT+C
CBC comma
refer to doc
cument [2].
3.7. Turn
n on and
d off Scen
3.7.1. Tu
urn on Mod
dule Using
The followin
ng table sho
ws the pin d
Table 7: PW
WRKEY Pin
n Descriptio
Pin Name
Pin No.
PWRKEY
21
When EC25
5 is in power
r down mod
low level fo
or at least 1
100ms. It is
PWRKEY.A
After STATU
S pin (requ
released. A
simple refer
rence circuit
≥ 100
ms
Turn on
n pulse
Figure 10
The other w
way to contro
ol the PWRK
placed near
rby the butt
on for ESD
from finger.
A reference
e circuit is sh
EC25-A_Us
E
All manuals and user guides at all-guides.com
upply
and to moni
tor the VBA
narios
g the PWR
RKEY
definition of
PWRKEY.
on
Descript
ion
Turn on/o
off the modu
ule.
e, it can be
turned on to
s recommen
nded to use
uire externa
al pull-up) o
t is illustrate
ed in the follo
4.7K
K
: Turn on th
he Module
KEY is using
g a button di
protection.
When pres
hownin the fo
ollowing figu
ser_ManualC
Confidentia
AT_BB volta
age value. F
DC C
Characteris
tics
Com
V
m
ax=2.1V
IH
V
m
in=1.3V
IH
V
ma
ax=0.5V
IL
o normal mo
ode by drivin
e an open d
drain/collect
outputting a
a low level,
owing figure
.
PWR
47K
Using Drivi
ing Circuit
rectly. A TVS
S componen
sing the key
y, electrosta
ure.
al / Release
d
28 / 6
LTE Module
L
e
EC25-AU
ser Manua
al
For more de
etails, please
e
mment
ng the PWRK
KEY pin to a
a
tor driver to
o control the
e
PWRKEY
pin can be
e
KEY
nt is indispe
ensable to be
e
atic strike m
may generate
e
69
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