Quectel EC25 series

1. Use t
h
PWRK
E
2. Ensur
e
3.9. USI
M
The USIM
c
3.0V USIM
Table 9: Pi
n
Pin Name
USIM_VD
D
USIM_DA
T
USIM_CL
K
USIM_RS
T
USIM_
PRESEN
C
USIM_GN
NOTES
E
VBA
T
Modu
Statu
s
RES
E
h
e RESET_
E
Y pin faile
d
e
that there i
s
M
Card I
c
ard interfa
c
cards are s
u
n
Definitio
n
Pin No.
D
14
T
A 15
K
16
T
17
C
E
13
D 10
E
C25-A_U
s
T
≥
T
le
s
R
U
E
T_N
Fi
g
N only wh
e
d
.
s
no large c
nterface
c
e circuitry
m
u
pported.
n
of the US
I
I/O
PO
IO
DO
DO
DI
s
e
r
_Manual
C
V
T
reset_min
R
U
NNIN
G
≤
g
ure 16: Ti
m
e
n turning
apacitance
m
eets ETSI
I
M Interfac
e
Descriptio
n
Power sup
p
Data signal
Clock sign
a
Reset sign
a
USIM card
i
Specified g
r
C
onfidenti
a
V
IL
≤ 0.5V
R
ESETTIN
G
Treset_ma
x
m
ing of Re
s
off the mo
d
on the PW
R
and IMT-2
0
e
n
p
ly for USIM
of USIM ca
a
l of USIM c
a
a
l of USIM c
i
nsertion de
t
r
ound for U
S
a
l / Release
RUNNING
x
s
etting Mo
d
d
ule by th
e
R
KEY and
R
0
00 SIM int
e
card.
rd.
a
rd.
ard.
t
ection.
S
IM card.
d 32 /
6
V
IH
≥ 1
d
ule
e
command
R
ESET_N pi
n
e
rface requi
r
Comment
Either 1.8
V
by the mod
L
EC25-AU
6
9
.3V
AT+QPO
W
n
s.
r
ements. B
o
V
or 3.0V i
s
ule automa
t
L
TE Modul
e
ser Manu
a
W
D and th
e
o
th 1.8V an
d
s
supported
t
ically.
e
a
l
e
d