Datasheet
DIY IOT Electronics and Solutions
IOT-BOTS.COM LLC IBT-QTC-BG9X-AMC-DS Rev. 1.1 9
Table 1
Pin
Name
Description
Type
Def
ault connection
Voltage
, V
Min
Typ.
Max
1
RT
C
R
TC
Vol
tage
Input
N
o
t
Co
nnected
0
3,0
3,0
2
NC
N
o
t
Co
nnected
-
-
-
-
-
3
R
I
Modem
RI
In
put
N
o
t
Co
nnected
0
3,3
5,5
4
QINT
qJa
m
Int
erru
pt
Output
,
OD
N
o
t
Co
nnected
0
3,3
5,5
5
CTS
Modem
UART
CTS
Output
, PP
N
o
t
Co
nnected
0
3,3
5,5
6
S
TATUS
Modem
STATUS
Output
, PP
N
o
t
Co
nnected
0
3,3
5,5
7
ENABLE
Device
Power
On/O
ff
In
put
Device
Power
On/O
ff
0
3,3
5,5
8
NC
N
o
t
Co
nnected
-
-
-
-
-
9
DCD
Modem
DCD
Pin
Output
, PP
N
o
t
Co
nnected
0
3,3
5,5
10
NC
N
o
t
Co
nnected
-
-
-
-
-
11
DTR
Modem
UART
DTR
In
put
N
o
t
Co
nnected
0
3,3
5,5
12
NC
N
o
t
Co
nnected
-
-
-
-
-
13
RTS
Modem
UART
RTS
In
put
N
o
t
Co
nnected
0
3,3
5,5
14
NC
N
o
t
Co
nnected
-
-
-
-
-
15
ON
Modem
On
/Off
In
put
Modem
On
/Off
0
3,3
5,5
1
6
NC
N
o
t
Co
nnected
-
-
-
-
-
17
NC
N
o
t
Co
nnected
-
-
-
-
-
18
NC
N
o
t
Co
nnected
-
-
-
-
-
19
NC
N
o
t
Co
nnected
-
-
-
-
-
20
SDA
I2C SDA
IO
, OD
I2C SDA
0
3,3
5,5
21
SCL
I2C S
CL
In
put
I2C S
CL
0
3,3
5,5
22
TXD
Modem
UART TX
Output
, PP
GSM
UART TX
0
3,3
5,5
23
RXD
Modem
UART
R
X
In
put
GSM
UART
R
X
0
3,3
5,5
24
NC
N
o
t
Co
nnected
-
-
-
-
-
25
GN
D
G
round
Power
G
round
0
0
0
26
NC
N
o
t
Co
nnected
-
-
-
-
-
27
NC
N
o
t
Co
nnected
-
-
-
-
-
28
5VIN
P
ower In
Power
P
ower In
0
3
,6
…
5,0
5,5
Power and Control
GND : the common ground for all power and logic;
5VIN : positive voltage to get qTop shield powered;
RTC : Real Time Clock battery voltage;
ENABLE : Device Power On / Off;
ON : Modem On / Off;
Modem UART
RXD : Modem UART RX line;