Pin Number
Name
EIA designation
Type
Note
1
DCD
Data Carrier Detect
Output
2
TX
Transmit Data
Input
3
NC
-
-
No Connection
4
NC
-
-
No Connection
5
NC
-
-
No Connection
6
RX
Receive Data
Output
7
DSR
Data Set Ready
Output
8
DTR
Data Terminal Ready
Input
9
GND
Ground
Ground
10
NC
-
-
No Connection
11
CTS
Clear To Send
Output
12
RTS
Request To Send
Input
13
RI
Ring Indicator
Output
14
RESET
Input
Pull low to reset
15
NC
-
-
No Connection
2.3.5 4-Pin connector (Power input/output)
A cable, included in the package shall be used for power supply connection:
Pin assignment of 4-Pin connector:
Pin number
Name
Functions
1
-
No Connection
2
-
No Connection
3
POWER -
DC power negative input (or ground)
4
POWER +
DC power positive input
The power cable included in the package shall be used for power supply connection:
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3603-9, 36/F., 118 Connaught Road West, Sheung Wan, Hong Kong
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