Quectel EC25-A User manual

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EC25-A
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a
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a
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Abo
u
Histor
y
Revision
V1.0
u
t th
e
y
Date
2016-
0
EC25-A_U
s
e
Do
c
0
3-28
s
e
r
_Manua
l
c
ume
Author
Woody WU
l
Confidenti
nt
al / Releas
e
Descripti
o
Initial
e
d 2 / 6
9
o
n
L
EC25-AU
9
L
TE Modul
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ser Manu
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e
a
l
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Content
s
About the
D
Contents..
.
Table Inde
x
Figure Ind
e
1 Introd
u
1.1.
2 Produ
c
2.1.
2.2. 2.
2
2.3.
2.4.
2.5.
3 Applic
3.1.
3.2.
3.3.
3.4.
3.5. 3.
5
3.
5
3.6. 3.
6
3.
6
3.
6
3.
6
3.7. 3.
7
3.
7
3.8.
3.9.
3.10.
s
D
ocument.
.
..................
x
................
e
x...............
u
ction........
Safety Inf
o
c
t Concept
General D
e
Directives
2
.1. FCC
Key Featu
Functiona
Evaluatio
n
ation Inter
f
General D
e
Pin Assig
n
Pin Descr
i
Operating
Power Sa
v
5
.1. Slee
p
3.5.1.1.
3.5.1.2.
3.5.1.3.
3.5.1.4.
5
.2. Airpl
Power Su
p
6
.1. Pow
e
6
.2. Dec
r
6
.3. Refe
6
.4. Mon
i
Turn on a
n
7
.1. Turn
7
.2. Turn
3.7.2.1.
3.7.2.2.
Reset the
USIM Car
d
USB Inter
f
EC25-A_U
s
..................
..................
..................
..................
..................
o
rmation ...
..................
e
scription.
and Stand
Statement
res ............
l Diagram..
n
Board .....
f
ace............
e
scription.
n
ment........
i
ption.........
Modes......
v
ing ...........
p
Mode......
UART Ap
p
USB App
l
USB App
l
USB App
l
ane Mode.
p
ply...........
e
r Supply
P
r
ease Volta
g
rence Desi
g
i
tor the Po
w
n
d off Sce
n
on Modul
e
off Modul
e
Turn off
M
Turn off
M
Module .....
d
Interface.
f
ace ...........
s
e
r
_Manua
l
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..................
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..................
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p
lication ...
.
l
ication wit
h
l
ication wit
h
l
ication wit
h
..................
.
..................
.
P
ins ...........
.
g
e Drop ....
.
g
n for Pow
e
w
er Supply
.
n
arios.........
.
e
Using the
e
.................
.
M
odule Usi
n
M
odule Usi
n
..................
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l
Confidenti
.
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h
USB Re
m
h
USB Sus
p
h
out USB
S
.
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e
r Supply.
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PWRKEY.
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n
g the PW
R
n
g AT Com
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al / Releas
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ote Wakeu
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KEY Pin...
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d 3 / 6
9
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p Function
m
e and RI
F
u
nction ......
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L
EC25-AU
9
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F
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L
TE Modul
e
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9
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9
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............... 1
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2
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3
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4
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4
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4
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2
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2
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2
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3
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3
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4
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2
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4
e
a
l
2
3
5
6
7
7
9
9
0
0
0
2
3
4
4
4
6
1
2
2
2
3
3
4
5
5
5
6
7
8
8
8
0
0
0
0
2
4
All manuals and user guides at all-guides.com

3.11.
3.12.
3.13.
3.14.
3.15.
3.16.
4 GNSS
4.1.
4.2.
4.3.
5 Anten
n
5.1. 5.
1
5.
1
5.
1
5.2.
5.3. 5.
3
5.
3
6 Electri
6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.
7 Mecha
7.1.
7.2.
7.3.
7.4.
8 Stora
g
8.1.
8.2.
8.3.
9 Appen
10 Appen
11 Appen
12 Appen
UART Inte
PCM and I
ADC Func
Network
S
STATUS...
Behavior
o
Receive
r
...
General D
e
GNSS Per
f
Layout G
u
n
a Interfac
e
Main/Rx-d
1
.1. Pin
D
1
.2. Ope
r
1
.3. Refe
GNSS Ant
e
Antenna I
n
3
.1. Ante
3
.2. Inst
a
cal, Reliab
i
Absolute
M
Power Su
p
Operating
Current C
o
RF Outpu
t
RF Recei
v
Electrosta
nical Dime
n
Mechanic
a
Footprint
o
Top View
o
Bottom Vi
e
g
e and Man
u
Storage....
Manufact
u
Packagin
g
dix A Refe
r
dix B GPR
S
dix C GPR
S
dix D EDG
E
EC25-A_U
s
rface.........
2C Interfa
c
tion...........
S
tatus Indic
a
..................
o
f the RI ....
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scription.
f
ormance..
u
ideline......
e
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t
D
efinition...
r
ating Freq
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nna Interf
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n
stallation.
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i
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p
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o
nsumptio
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t
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tic Discha
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n
sions.......
a
l Dimensi
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o
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u
facturing.
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ring and
W
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L
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Table In
TABLE 1:
E
TABLE 2:
E
TABLE 3: I
O
TABLE 4:
P
TABLE 5:
O
TABLE 6:
V
TABLE 7:
P
TABLE 8:
R
TABLE 9:
P
TABLE 10:
TABLE 11:
P
TABLE 12:
TABLE 13:
L
TABLE 14:
TABLE 15:
TABLE 16:
TABLE 17:
TABLE 18:
W
TABLE 19:
TABLE 20:
TABLE 21:
TABLE 22:
TABLE 23:
T
TABLE 24:
TABLE 25:
TABLE 26:
A
TABLE 27:
A
TABLE 28:
T
TABLE 29:
TABLE 30:
TABLE 31:
TABLE 32:
TABLE 33:
T
TABLE 34:
TABLE 35:
TABLE 36:
dex
E
C25 SERIE
E
C25 KEY F
O
PARAME
T
P
IN DESCRI
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VERVIEW
O
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BAT AND
G
P
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R
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IN DEFINI
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USB PIN D
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IN DEFINI
PIN DEFINI
L
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PIN DEFINI
PIN DEFINI
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GNSS PER
PIN DEFINI
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PIN DEFINI
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A
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A
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OPERATIN
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CONDUCT
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All manuals and user guides at all-guides.com
all-guides.com

Figure I
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FIGURE 1:
FIGURE 2:
FIGURE 3:
FIGURE 4:
FIGURE 5:
FIGURE 6:
FIGURE 7:
FIGURE 8:
FIGURE 9:
FIGURE 1
0
FIGURE 11
FIGURE 1
2
FIGURE 1
3
FIGURE 1
4
FIGURE 1
5
FIGURE 1
6
FIGURE 1
7
FIGURE 1
8
FIGURE 1
9
FIGURE 2
0
FIGURE 21
FIGURE 2
2
FIGURE 2
3
FIGURE 2
4
FIGURE 2
5
FIGURE 2
6
FIGURE 2
7
FIGURE 2
8
FIGURE 2
9
FIGURE 3
0
FIGURE 31
FIGURE 3
2
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: REFERE
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: DIMENSI
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atingover
r
onnect in a
l
ile you are i
r
gency call.
s
t be switc
h
t
ains a tran
s
u
ency ener
g
t
er or other
e
ive atmosp
h
phone o
r
o
includefuel
r
age faciliti
e
n
, dust or m
e
e
d 8 / 6
9
r
adio frequ
e
l
l conditions
n this condi
t
In order to
h
ed on an
d
s
mitter and
r
g
y. RF inter
f
e
lectric equi
h
eres, obey
o
ther cellul
a
ling areas,
e
s, areas
w
e
tal powder
s
L
EC25-AU
9
e
ncy signal
, for examp
tion and ne
e
make or r
e
d
in a servi
c
r
eceiver. W
h
f
erence can
pment.
all posted
s
a
r terminals
below dec
k
w
here the
s
, etc.
L
TE Modul
e
ser Manu
a
and cellula
le no mobil
e
e
d emerge
n
e
ceive a call
c
e area wit
h
h
en it is ON
occur if it i
s
s
igns to tur
n
.
Areas wit
h
k
s on boat
s
air contain
s
e
a
l
r
e
n
t
,
h
,
s
n
h
s
,
s
All manuals and user guides at all-guides.com

2
P
2.1. Ge
n
EC25 is a
module wit
HSPA+, H
S
GNSS1) an
d
EC25-V an
following ta
b
Table 1: E
C
1. 1)GNS
S
2. 2)EC25
Data-o
With a tin
y
application
s
computing
d
EC25 is an
NOTES
P
rod
u
n
eral De
s
series of
F
h receive
d
S
DPA, HSU
P
d
voice func
t
d EC25-A
U
b
le shows t
h
C
25-A Freq
u
S
function is
series (E
C
nlyversion
d
y
profile of
s
such as
a
d
evice, PD
A
SMD type
m
EC25-A_U
s
u
ct C
o
s
cription
F
DD-LTE /
T
d
iversit
y
, w
h
P
A, WCDM
A
t
ionality2) fo
r
U
T. You ca
n
h
e frequenc
y
u
ency Ban
d
optional.
C
25-E/EC25
-
d
oes not su
p
32.0mm ×
2
a
utomotive,
A
phone and
m
odule whi
c
FDD
-
(with Rx-
d
TDD
-
(with Rx-
d
WC
D
(with Rx-
d
G
S
GN
S
s
e
r
_Manua
l
o
nce
T
DD-LTE /
W
h
ich provid
e
A
, TD-SCD
r
your speci
f
n
choose t
h
y
bands of
E
d
s
-
A/EC25-V/
E
p
port voice
f
2
9.0mm ×2.
4
metering,
tablet PC,
e
c
h can be e
m
-
LTE
d
iversity)
-
LTE
d
iversity)
D
MA
d
iversity)
S
M
S
S
l
Confidenti
pt
W
CDMA/TD
-
e
s data co
n
MA, CDMA
,
f
ic applicati
o
h
e dedicate
d
E
C25 serie
s
E
C25-AUT)
f
unction, w
h
4
mm, EC2
5
tracking s
y
e
tc.
m
bedded in
EC25-
A
B2
/
B4
/
Not su
B2/B4
/
Not su
GPS,
G
BeiDo
u
al / Releas
e
-
SCDMA/C
D
n
nectivity o
n
,
EDGE and
G
o
n.EC25 co
n
d
type bas
e
s
modules.
includes D
a
h
ile Telema
t
5
can mee
t
y
stem, secu
application
s
A
/
B12
pported
/
B5
pported
G
LONASS,
u
/Compass,
e
d 9 / 6
9
D
MA/GSM
w
n
FDD-LTE
,
G
PRSnetw
o
n
tains fourv
a
e
d on the
r
a
ta-only a
n
t
ics version
t
almost all
rity, router,
s
through its
Galileo,QZ
S
L
EC25-AU
9
w
ireless co
m
,
TDD-LTE
,
o
rks. It can
a
riants:EC2
5
r
egion or o
p
n
d Telemati
supports it.
requireme
n
wireless
P
144-pin pa
d
S
S
L
TE Modul
e
ser Manu
a
m
municatio
n
,
DC-HSPA
+
also provid
e
5
-E, EC25-
A
p
erator. Th
e
c
s version
s
n
ts for M2
M
P
OS, mobil
e
d
s, includin
g
e
a
l
n
+
,
e
A
,
e
s
.
M
e
g
All manuals and user guides at all-guides.com

80LCC sig
n
2.2. Dir
e
2.2.1. FC
C
Any Chang
e
This device
(1) This de
v
received, in
2.3. Ke
y
The followi
n
Table 2: E
C
Feature
Power Su
Transmitti
LTE Feat
u
WCDMA
F
Internet P
SMS
E
n
al pads an
d
e
ctives a
C
Statem
e
e
s or modifi
c
the user’
s
complies
w
v
ice may n
o
cluding inte
y
Featur
e
n
g table des
C
25 Key Fe
a
pply
ng Power
u
res
F
eatures
rotocol Fea
t
E
C25-A_U
s
d
64 other p
a
nd Stan
d
e
nt
c
ations not
e
s
authority t
o
w
ith part 15
o
o
t cause h
a
rference th
a
e
s
cribes the d
a
tures
Det
a
Sup
p
Clas
Clas
Clas
Sup
p
Sup
p
Sup
p
FD
D
TD
D
Sup
p
Sup
p
3GP
3GP
t
ures
Sup
p
Sup
p
(Ch
a
con
n
Text
Poin
s
e
r
_Manual
C
a
ds.
d
ards
e
xpressly a
p
o
operate th
e
o
f the FCC
a
rmful interf
e
a
t may caus
e
etailed feat
u
a
ils
p
ly voltage:
s 3 (24dBm
s 3 (23dBm
s 3 (23dBm
p
ort up to n
o
p
ort 1.4 to 2
p
ort Multius
e
D
: Max 50M
b
D
: Max 35M
b
p
ort 3GPP
R
p
ort 16-QA
M
P R6 CAT6
P R8 CAT2
4
p
ort TCP/U
D
p
ort the pro
t
a
llenge Ha
n
n
ections
and PDU
m
t to point M
O
C
onfidenti
a
p
proved by
t
e
equipmen
Rules. Ope
r
e
rence, an
d
e
undesired
u
res of EC2
3.3V~4.3V
T
+1/-3dB) fo
r
±2dB) for L
T
±2dB) for L
T
o
n-CA CAT
4
0MHz RF b
a
er
MIMO in
b
ps (UL), 15
b
ps (UL), 13
R
8 DC-HSP
A
M
, 64-QAM
a
HSUPA: M
a
4
DC-HSP
A
D
P/PPP/FT
P
t
ocols PAP
n
dshake A
u
m
ode
O
and MT
a
l / Release
t
he party re
s
t.
r
ation is su
b
d
(2) this d
e
operation.
5 module.
T
ypical sup
p
r
WCDMA
b
T
E FDD ba
n
T
E TDD ba
n
4
a
ndwidth
DL directio
n
0Mbps (DL
)
0Mbps (DL
)
A
+
a
nd QPSK
m
a
x 5.76Mbp
s
A
+: Max 42
M
P
/HTTP/SM
T
(Password
A
u
thenticatio
n
d 10 /
6
s
ponsible f
o
b
ject to the
f
e
vice must
a
p
ly voltage:
3
b
ands
n
ds
n
ds
n
)
)
m
odulation
s
(UL)
M
bps (DL)
T
P/MMS/N
T
A
uthenticati
n
Protocol)
L
EC25-AU
6
9
o
r complian
c
f
ollowing tw
o
a
ccept any
3
.8V
T
P/PING/Q
M
on Protocol
usually us
e
L
TE Modul
e
ser Manu
a
c
e could voi
d
o
condition
s
interferenc
e
M
I protocols
) and CHA
P
e
d for PP
P
e
a
l
d
s
:
e
P
P
All manuals and user guides at all-guides.com
all-guides.com

USIM Int
e
Audio Fe
a
PCM Inte
r
USB Inter
f
UART Int
e
Rx-diversi
GNSS Fe
a
AT Com
m
Network I
n
Antenna I
n
Physical
C
Temperat
u
Firmware
RoHS
E
e
rface
a
tures
r
face
f
ace
e
rface
ty
a
tures
m
ands
n
dication
n
terface
C
haracterist
i
u
re Range
Upgrade
E
C25-A_U
s
SM
S
SM
S
Sup
p
Sup
p
WC
D
LTE:
Sup
p
Use
d
Sup
p
Sup
p
Sup
p
Co
m
reac
Use
d
outp
US
B
Win
d
Mai
n
Use
d
Bau
d
Sup
p
Deb
u
Use
d
115
2
Sup
p
Gen
8
Prot
o
Co
m
com
m
Two
con
n
Incl
u
GN
S
i
cs Size
Wei
g
Nor
m
Res
t
Stor
a
US
B
All h
s
e
r
_Manual
C
S
cell broad
c
S
storage:
M
p
ort USIM
/S
p
ort one dig
D
MA: AMR/
A
AMR/AMR
-
p
ort echo c
a
d
for audio
f
p
ort 8-bit A-
l
p
ort long fra
p
ort master
m
pliant with
U
h up to 480
M
d
for AT co
ut, software
B
Drive
r
:
W
d
ow CE 5.0
/
n
UART:
d
for AT co
m
d
rate reach
p
ort RTS an
u
g UART:
d
for Linux
c
2
00bps bau
d
p
ort LTE
/
W
C
8
C-Lite of
Q
o
col: NME
A
m
pliant with
m
ands
pins inclu
d
n
ectivity sta
t
u
ding main
a
S
S antenna
(
: 32.0±0.15
×
g
ht: approx.
m
al operatio
t
ricted oper
a
a
ge temper
a
B
interface
ardware co
m
C
onfidenti
a
c
ast
M
E by defaul
t
S
IM card: 1.
8
ital audio in
t
A
MR-WB
-
WB
a
ncellation
a
f
unction wit
h
l
aw, μ-lawa
n
me sync an
and slave
m
U
SB 2.0 sp
e
M
bps
mmand co
m
debug and
W
indows XP
,
/
6.0/7.0, Lin
u
m
mand and
up to 9216
0
d CTS hard
c
onsole, log
d
rate
C
DMA Rx-d
Q
ualcomm
A
0183
3GPP TS
d
ing NET_
M
t
us
a
ntenna (A
N
(
ANT_GNS
S
×
29.0±0.15
×
4.9g
n:-35°C ~ +
a
tion: -40°C
a
ture: -45°
C
m
ponents a
r
a
l / Releas
e
t
8
V, 3.0V
t
erface: PC
M
a
nd noise s
u
h
external c
o
n
d 16-bit lin
e
d short fra
m
m
ode, but m
u
e
cification (
s
m
municatio
n
firmware u
p
,
Windows
V
u
x 2.6 or la
t
data trans
m
0
0bps, 115
2
ware flow c
o
output
iversity
27.007, 2
7
M
ODE and
N
T_MAIN),
R
S
)
×
2.4±0.2m
m
75°C
~ -35°C an
d
C
~ +90°C
r
e fully com
p
e
d 11 / 6
M
interface
u
ppression
o
dec
e
ar data for
m
m
e sync
u
st be the
m
s
lave only);t
h
n
, data tran
s
p
grade
V
ista, Wind
t
er, Android
m
ission
2
00bps by d
o
ntrol
7
.005 and
NET_STAT
R
x-diversity
a
m
d
+75°C ~
+
p
liant with
E
L
EC25-AU
9
m
ats
m
aster in lon
g
h
e data tran
s
s
mission,
G
ows 7, Wi
n
2.3/4.0/4.2/
4
efault
Quectel e
n
US to indi
c
a
ntenna (A
N
+
85°C
E
U RoHS di
r
L
TE Modul
e
ser Manu
a
g
frame syn
c
s
fer rate ca
n
G
NSS NME
A
n
dows 8/8.1
4
.4/5.0
n
hanced A
T
c
ate networ
k
N
T
_
DIV) an
d
r
ective
e
a
l
c
n
A
,
T
k
d
All manuals and user guides at all-guides.com

2.4. Fun
The followi
n
Power
Baseb
a
DDR+
N
Radio
f
Periph
e
VBAT_BB
VBAT_RF
PWRKE
Y
ADCs
RESET_N
STATUS
E
ctional
D
n
g figure sh
o
manageme
n
a
nd
N
AND flash
f
requency
e
ral interfac
e
Y
V
E
C25-A_U
s
D
iagram
o
ws a block
n
t
e
PMIC
APT
V
DD_EXT
s
e
r
_Manual
C
diagram of
P
A
19.2
M
XO
Control
Tx
Figure 1:
C
onfidenti
a
EC25 and i
l
A
Switch
ANT_MAI
N
USB
M
I
Q
Duple
x
PRx
Functiona
a
l / Release
l
lustrates th
e
B
Transc
e
L
N
N
ANT_
G
USIM
P
S
A
Q
x
l Diagram
d 12 /
6
e
major fun
c
B
aseban
d
e
ive
r
NA
A
G
NSS
P
CM I2
C
A
W
Co
n
D
L
EC25-AU
6
9
c
tional parts
d
S
Switch
A
NT_DIV
UART
C
n
trol
SAW
D
Rx
L
TE Modul
e
ser Manu
a
.
NAND
DDR2
S
DRAM
GPIOs
e
a
l
All manuals and user guides at all-guides.com

2.5. Eva
In order to
h
data cable,
E
luation
B
h
elp youto
d
earphone,
a
E
C25-A_U
s
B
oard
d
evelop app
l
a
ntenna an
d
s
e
r
_Manual
C
l
ications wit
d
other peri
p
C
onfidenti
a
h EC25, Q
u
p
herals to c
o
a
l / Release
ectel suppli
o
ntrol or tes
t
d 13 /
6
es an evalu
t
the modul
e
L
EC25-AU
6
9
ation board
e
.
L
TE Modul
e
ser Manu
a
(EVB), US
B
e
a
l
B
All manuals and user guides at all-guides.com

3
A
3.1. Ge
n
EC25 is e
q
beconnect
e
in the follo
w
Power
USIM i
n
USB in
UART
i
PCM i
n
ADC i
n
Status
3.2. Pin
The followi
n
E
A
ppli
c
n
eral De
s
q
uipped wi
t
e
d to cellula
r
w
ing chapte
r
supply
n
terface
terface
i
nterface
n
terface
n
terface
indication
Assign
m
n
g figure sh
o
E
C25-A_U
s
c
atio
n
s
cription
t
h an80-pin
r
application
r
s:
m
ent
o
ws the pin
s
e
r
_Manual
C
n
Int
e
SMT pad
platform. S
assignment
C
onfidenti
a
e
rfac
e
plus 64-pi
n
ub-interfac
e
of the EC2
5
a
l / Release
e
n
ground
p
e
s included i
5
module.
d 14 /
6
p
ads and r
e
n these pad
L
EC25-AU
6
9
e
served pa
s are descr
i
L
TE Modul
e
ser Manu
a
d
s that ca
n
i
bed in deta
i
e
a
l
n
i
l
All manuals and user guides at all-guides.com

W
A
R
W
_
N
NE
T
USIM_
P
U
U
U
U
R
U
R
R
1. Keep
a
2. GND p
a
not be
d
3. “
※
” me
a
NOTES
E
3
1
4
5
6
7
2
W
AKEUP _ I N
AP
_R EAD Y
R
ESERVED
_
DI SABLE #
N
ET _M OD E
T
_STATUS
VDD_ EXT
GND
GND
DBG_RXD
DBG_TXD
P
RESENC
E
U
SIM_VDD
SIM_DATA
U
SIM_ CLK
U
SIM_ RST
R
ESERVED
8
9
10
11
12
13
14
15
16
17
18
U
SIM _GND
R
ESERVED
R
ESERVED
141
142
a
ll RESERV
E
a
ds 85~112
d
esigned in
a
ns these in
E
C25-A_U
s
1
9
7
2
G
N
D
G
N
D
113
RE SE RV ED RE SE RV ED
117
126
125
124
123
122
121
120
119
118
127
128
11 5
RESERVED RESERVED
11 6
139
140
138
137
136
135
134
133
132
131
130
129
114
Powe r Pins
Fi
E
Dpins and
should be
c
schematic
a
terface fun
c
s
e
r
_Manual
C
20 21 22
2
3
1
9
7
2
71 70 69
6
8
G
N
D
RESET_N PW RKEY GND
R
E
S
E
R
V
E
D
G
N
D
USB_VBUS
USB_DM
USB_DP
R
X
D
106
107
111
112
103
104109
105110
108
GN
D
gure 2: Pi
n
unused pin
s
c
onnected t
o
a
nd PCB d
e
c
tions are o
n
C
onfidenti
a
2
3
24 25 26 27
6
8
67 66 65 64
R
E
S
E
R
V
E
D
PCM _IN
※
PCM _O UT
※
PCM _S YNC
※
PCM _CLK
※
TXD
DTR
RTS CT S
76
77
78
79
80
81
82
83
84
100
101
102
9
99
D
Pin s
n
Assignm
e
s
unconnec
t
o
ground in
t
e
cal.
n
ly supporte
a
l / Release
28 29 30 31
63 62 61 60
RESERVED RESERVED RESERVED RESERVED
DCD
RI
STA TUS
VBAT_BB
V
B
A
T
_
B
B
73
74
75
94
98
939
7
919
6
909
5
92
Signal Pins
e
nt (Top
V
i
e
t
ed.
t
he design,
a
d on Telem
a
d 15 /
6
34 35
3
6
32 33
59 58 57 56
5
5
R
ES E
R
VE D
RESERVED ANT_DIV
G
N
D
V
B
A
T
B
B
VBAT_RF VB AT _ RF
GND
R
E
S
E
R
V
E
D
89
88
86
85
87
RESERVED
RE
S
e
w)
a
nd RESE
R
a
tics versi
o
L
EC25-AU
6
9
3
6
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
5
5
G
N
D
R
E
S
E
R
V
E
D
GN
D
GN
D
ANT
_
GN
D
ANT
GN
D
AD
C
RES
I2C
_
I2C
_
RES
AD
C
GN
D
GN
D
GN
D
RES
RES
RES
S
ERVED Pin s
RES
RES
143
144
R
VED pads
7
o
n.
L
TE Modul
e
ser Manu
a
D
D
_
MAIN
D
_GNSS
D
C
1
ERVED
_
SDA
_
SCL
ERVED
C
0
D
D
D
ERVED
ERVED
ERVED
ERVED
ERVED
7
3~84shoul
d
e
a
l
d
All manuals and user guides at all-guides.com
all-guides.com

3.3. Pin
The followi
n
Table 3: IO
Type
IO
DI
DO
PI
PO
AI
AO
OD
Table 4: Pi
n
Power Su
Pin Name
VBAT_BB
VBAT_RF
VDD_EX
T
GND
E
Descrip
t
n
g tables sh
o
Paramete
r
n
Descripti
o
pply
Pin No.
59,60
57,58
T
7
8,9,19,2
6,46,48,
~54,56,
7
85~112
E
C25-A_U
s
t
ion
o
w the EC2
r
s Definitio
n
Des
c
Bidi
r
Digi
t
Digi
t
Pow
e
Pow
e
Anal
Anal
Ope
n
o
n
I/O
PI
PI
PO
2,3
50
7
2,
s
e
r
_Manual
C
5’s pin defi
n
n
c
ription
r
ectional inp
t
al input
t
al output
e
r input
e
r output
og input
og output
n
drain
Descriptio
n
Power sup
p
module ba
s
part.
Power sup
p
module RF
Provide 1.8
V
external cir
c
Ground.
C
onfidenti
a
n
ition.
ut/output
n
D
p
ly for
s
eband
V
V
V
p
ly for
part.
V
V
V
V
for
c
uit.
V
a
l / Release
D
C Charac
t
V
max=4.3V
V
min=3.3V
V
norm=3.8
V
V
max=4.3V
V
min=3.3V
V
norm=3.8
V
V
norm=1.8
V
IOmax=50m
d 16 /
6
t
eristics
C
V
I
p
c
V
I
p
c
t
V
A
P
e
c
L
EC25-AU
6
9
C
omment
t must be a
b
p
rovide suffi
c
urrent up t
o
t must be a
b
p
rovide suffi
c
urrent up t
o
t
ransmitting
P
ower supp
e
xternal GP
c
ircuits.
L
TE Modul
e
ser Manu
a
b
le to
cient
o
0.8A.
b
le to
cient
o
1.8A in a
burst.
ly for
IO’s pull up
e
a
l
All manuals and user guides at all-guides.com

Turn on/o
f
Pin Name
PWRKEY
RESET_N
Status In
d
Pin Name
STATUS
NET_MO
D
NET_
STATUS
USB Inter
f
Pin Name
USB_VB
U
USB_DP
USB_DM
USIM Inte
Pin Name
USIM_GN
USIM_VD
D
E
f
f
Pin N
o
21
20
d
ication
Pin N
o
61
D
E 5
6
f
ace
Pin N
o
U
S 71
69
70
rface
Pin N
o
D 10
D
14
E
C25-A_U
s
o
. I/O
DI
DI
o
. I/O
OD
DO
DO
o
. I/O
PI
IO
IO
o
. I/O
PO
s
e
r
_Manual
C
Descriptio
n
Turnon/off t
module.
Reset the
m
Descriptio
n
Indicate th
e
operating s
t
Indicate th
e
network re
g
mode.
Indicate th
e
network ac
t
status.
Descriptio
n
USB detect
USB differe
bus.
USB differe
bus.
Descriptio
n
Specified g
r
USIM card.
Power sup
p
USIM card.
C
onfidenti
a
n
he
m
odule.
n
e
module
t
atus.
e
module
g
istration
e
module
t
ivity
n
ion.
ntial data
ntial data
n
r
ound for
p
ly for
a
l / Release
DC Chara
c
VIHmax=2.1
VIHmin=1.3
V
VILmax=0.5
VIHmax=2.1
VIHmin=1.3
V
VILmax=0.5
DC Chara
c
The drive c
u
should be l
e
0.9mA.
VOHmin=1.
3
VOLmax=0.
4
VOHmin=1.
3
VOLmax=0.
4
DC Chara
c
Vnorm=5.0
V
Compliant
w
2.0 standar
d
specificatio
n
Compliant
w
2.0 standar
d
specificatio
n
DC Chara
c
For 1.8V U
S
Vmax=1.9
V
Vmin=1.7V
For 3.0V U
S
d 17 /
6
c
teristics
V
V
V
V
V
V
c
teristics
u
rrent
e
ss than
3
5V
4
5V
3
5V
4
5V
c
teristics
V
w
ith USB
d
n
.
w
ith USB
d
n
.
c
teristics
S
IM:
V
S
IM:
L
EC25-AU
6
9
Commen
t
Commen
t
Require e
x
pull-up. If
u
keep it op
e
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
open.
Commen
t
Require di
impedanc
e
Require di
impedanc
e
Commen
t
Either 1.8
V
supported
module a
u
L
TE Modul
e
ser Manu
a
t
t
x
ternal
u
nused,
e
n.
e
r domain.
keep it
e
r domain.
keep it
t
fferential
e
of 90ohm.
fferential
e
of 90ohm.
t
V
or 3V is
by the
u
tomaticall
y
.
e
a
l
All manuals and user guides at all-guides.com

USIM_DA
T
USIM_CL
K
USIM_RS
T
USIM_
PRESEN
C
UART Int
e
Pin Name
RI
DCD
CTS
E
T
A 15
K
16
T
17
C
E 13
e
rface
Pin N
o
62
63
64
E
C25-A_U
s
IO
DO
DO
DI
o
. I/O
DO
DO
DO
s
e
r
_Manual
C
Data signal
card.
Clock sign
a
card.
Reset sign
a
USIM card.
USIM card
i
detection.
Descriptio
n
Ring indica
t
Data carrie
r
detection.
Clear to se
n
C
onfidenti
a
of USIM
a
l of USIM
a
l of
i
nsertion
n
t
o
r
r
n
d.
a
l / Release
Vmax=3.05
Vmin=2.7V
IOmax=50
m
For 1.8V U
S
VILmax=0.6
VIHmin=1.2
V
VOLmax=0.
4
VOHmin=1.
3
For 3.0V U
S
VILmax=1.0
VIHmin=1.9
5
VOLmax=0.
4
VOHmin=2.
5
For 1.8V U
S
VOLmax=0.
4
VOHmin=1.
3
For 3.0V U
S
VOLmax=0.
4
VOHmin=2.
5
For 1.8V U
S
VOLmax=0.
4
VOHmin=1.
3
For 3.0V U
S
VOLmax=0.
4
VOHmin=2.
5
VILmin=-0.
3
VILmax=0.6
VIHmin=1.2
V
VIHmax=2.
0
DC Chara
c
VOLmax=0.
4
VOHmin=1.
3
VOLmax=0.
4
VOHmin=1.
3
VOLmax=0.
4
VOHmin=1.
3
d 18 /
6
V
m
A
S
IM:
V
V
4
5V
3
5V
S
IM:
V
5
V
4
5V
5
5V
S
IM:
4
5V
3
5V
S
IM:
4
5V
5
5V
S
IM:
4
5V
3
5V
S
IM:
4
5V
5
5V
3
V
V
V
0
V
c
teristics
4
5V
3
5V
4
5V
3
5V
4
5V
3
5V
L
EC25-AU
6
9
1.8V pow
e
If unused,
open.
Commen
t
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
L
TE Modul
e
ser Manu
a
e
r domain.
keep it
t
e
r domain.
keep it
e
r domain.
keep it
e
r domain.
keep it
e
a
l
All manuals and user guides at all-guides.com

RTS
DTR
TXD
RXD
Debug U
A
Pin Name
DBG_TX
D
DBG_RX
D
ADC Inte
r
Pin Name
ADC0
ADC1
PCM Inte
r
Pin Name
E
65
66
67
68
A
RT Interfa
c
Pin N
o
D
12
D
11
r
face
Pin N
o
45
44
r
face
Pin N
o
E
C25-A_U
s
DI
DI
DO
DI
c
e
o
. I/O
DO
DI
o
. I/O
AI
AI
o
. I/O
s
e
r
_Manual
C
Request to
Data termi
n
ready,sleep
control.
Transmit d
a
Receive da
t
Descriptio
n
Transmit d
a
Receive da
t
Descriptio
n
General pu
r
analog to d
i
converter.
General pu
r
analog to d
i
converter.
Descriptio
n
C
onfidenti
a
send.
n
al
mode
a
ta.
t
a.
n
a
ta.
t
a.
n
r
pose
i
gital
r
pose
i
gital
n
a
l / Release
VILmin=-0.
3
VILmax=0.6
VIHmin=1.2
V
VIHmax=2.
0
VILmin=-0.
3
VILmax=0.6
VIHmin=1.2
V
VIHmax=2.
0
VOLmax=0.
4
VOHmin=1.
3
VILmin=-0.
3
VILmax=0.6
VIHmin=1.2
V
VIHmax=2.
0
DC Chara
c
VOLmax=0.
4
VOHmin=1.
3
VILmin=-0.
3
VILmax=0.6
VIHmin=1.2
V
VIHmax=2.
0
DC Chara
c
Voltage ran
0.3V to VB
A
Voltage ran
0.3V to VB
A
DC Chara
c
d 19 /
6
3
V
V
V
0
V
3
V
V
V
0
V
4
5V
3
5V
3
V
V
V
0
V
c
teristics
4
5V
3
5V
3
V
V
V
0
V
c
teristics
ge:
A
T_BB
ge:
A
T_BB
c
teristics
L
EC25-AU
6
9
open.
1.8V pow
e
If unused,
open.
1.8V pow
e
Pull-up by
Low level
w
the modul
e
If unused,
open.
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
open.
Commen
t
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
open.
Commen
t
If unused,
open.
If unused,
open.
Commen
t
L
TE Modul
e
ser Manu
a
e
r domain.
keep it
e
r domain.
default.
w
akes up
e
.
keep it
e
r domain.
keep it
e
r domain.
keep it
t
e
r domain.
keep it
e
r domain.
keep it
t
keep it
keep it
t
e
a
l
All manuals and user guides at all-guides.com