User's Manual

User manual
Guangzhou Andea Electronics Technology Co., Ltd. 6/34
http://www.gzandea.com
⚫ Baud rate: 38400
⚫ Data bit:8
⚫ Parity check: even parity
⚫ Stop bits:1
RS232 interface pin definition:
Figure 6 RS232 interface for host communication (DB9 connector)
Table 3 Pin definition of RS232 interface
Pin
Definition
Description
1
COM
Relay port: common port
2
PC-TXD
RS232 data output
3
PC-RXD
RS232 data input
4
IN1
data input
5
GND
Ground
6
NC
Relay port: normally closed port
7
NO
Relay port: normally open port
8
RS485-B
DATA-
9
RS485-A
DATA+
Figure 7 Wiring example for connecting RS232 interface
Remarks: If the user's computer does not have an RS232 serial port, the USB to
RS232 converter of our company can be selected (non-standard products, must be
purchased separately), install the USB driver and use the reader through the USB
interface of the computer.