Quectel EC25 series User Manual

3.11. U
A
The modul
e
following s
h
 Main
U
baud r
a
comm
u
 Debug
output.
The followi
n
Table 11:
P
Pin Name
RI
DCD
CTS
RTS
DTR
TXD
RXD
Table 12:
P
Pin Name
DBG_TX
D
DBG_RX
D
The logic le
E
A
RT Inte
r
e
provides
h
ows the dif
f
U
ART interf
a
a
te, and th
e
u
nication.
UART int
e
n
g tables sh
o
P
in Definiti
o
Pin
N
62
63
64
65
66
67
68
P
in Definiti
o
Pin
N
D
12
D
11
vels are de
s
E
C25-A_U
s
r
face
two UART
f
erent featu
r
a
ce support
s
e
default is
e
rface supp
o
o
w the pin
d
o
n of the M
a
N
o. I/O
D
O
D
O
D
O
DI
DI
D
O
DI
o
n of the D
e
N
o. I/O
D
O
DI
s
cribed in th
s
e
r
_Manual
C
interfaces:
r
es.
s
9600, 19
2
115200bps.
o
rts 11520
0
d
efinition.
a
in UART I
n
D
e
O
Ri
n
O
D
a
O
Cl
e
R
e
Sl
e
O
Tr
a
R
e
e
bug UAR
T
D
e
O
Tr
a
R
e
e following
t
C
onfidenti
a
main UA
R
2
00, 38400,
This interf
a
0
bpsbaud r
a
n
terface
e
scription
n
g indicato
r
a
ta carrier d
e
e
ar to send
e
quest to se
e
ep mode c
o
a
nsmit data
e
ceive data
T
Interface
e
scription
a
nsmit data
e
ceive data
t
able.
a
l / Release
R
T interface
57600, 11
5
a
ce can be
a
te. It can
e
tection
nd
o
ntrol
d 36 /
6
and debu
g
5
200, 2304
0
used for d
a
be used fo
r
Commen
1.8V pow
e
1.8V pow
e
1.8V pow
e
1.8V pow
e
1.8V pow
e
1.8V pow
e
1.8V pow
e
Commen
1.8V pow
e
1.8V pow
e
L
EC25-AU
6
9
g
UART in
t
0
0, 460800
,
a
ta transmis
s
r
Linux con
s
t
e
r domain
e
r domain
e
r domain
e
r domain
e
r domain
e
r domain
e
r domain
t
e
r domain
e
r domain
L
TE Modul
e
ser Manu
a
t
erface. Th
e
,
921600bp
s
s
ion and A
T
s
ole and lo
g
e
a
l
e
s
T
g

Quectel EC25 series Specifications

General

GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Storage Temperature	-45°C to +90°C
Form Factor	LCC
Dimensions	29.0mm × 32.0mm × 2.4mm
Category	Cellular Module
LTE FDD	B1/B3/B5/B7/B8/B20
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
Interfaces	USB 2.0, UART, PCM, I2C
Operating Voltage	3.3V to 4.3V
SIM Interface	1.8V/3V
Antenna Interface	Main and diversity antenna
Certifications	CE, FCC, PTCRB, GCF, IC, RCM
GSM	850/900/1800/1900 MHz