User's Manual

User manual
Guangzhou Andea Electronics Technology Co., Ltd. 6/26
http://www.gzandea.com
Figure 6 DB9 connector
➢ Parameters Description of RS232 communication interface:
Baud rate: 38400
Data bit: 8
Parity: even parity
Stop bit: 1
Default address: 1
➢ Definition of interface pin (as shown in the below sheet):
Table 4 RS232 interface pin definition description
Pin
Signal
Description
1
NC
Reserved
2
TXD
RS232 data output
3
RXD
RS232 data input
4
NC
Reserved
5
GND
Ground
6
NC
Reserved
7
NC
Reserved
8
NC
Reserved
9
NC
Reserved
Remarks: If the user's computer does not have RS232 serial port, you can choose
our USB to RS232 converter (non-standard products, must be purchased separately),
after installing the USB driver, you can use the reader through the connected computer
USB interface.
4. Device Connection
Before using the product, use the “RS232+ power supply” combination cable as
shown below. Connect the communication cable to the computer first, then plug in the
power cable, as shown below: