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The turn on
scenario is
illustrated in
VBAT
PWRK
KEY
RESET
T_N
STAT
US
(OD)
UART
USB
NOTE
Make sure t
that VBAT is
s stable befo
30ms.
EC25-A_Us
E
All manuals and user guides at all-guides.com
S1
TVS
Close to
Figure
11: Turn on
n the Modul
n the followi
ng figure.
NOTE
E
≥ 100m
ms
V
≤ 0.5
5V
IL
TBD
Inactiv
ve
Inactiv
v e
Fig
ure 12: Tim
ming of Turn
ore pulling d
down PWRK
ser_ManualC
Confidentia
PWRKEY
S1
le Using Ke
eystroke
V
≥ 1 .3V
≥
IH
TB
BD
TB
BD
ning on Mod
dule
KEY pin. The
e time betwe
al / Release
d
29 / 6
LTE Module
L
e
EC25-AU
ser Manua
al
Y
Active
A
Active
A
een them is
no less than
n
69
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