PA22
User Manual
P a g e
| 22
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5.2.
Serial Comm
The Serial Comm function facilitates to establish communication with the device through a serial port
(/RS485/ Master Unit).
Select
Serial Comm
on the
Comm.
Settings interface.
Function Description:
Function
Descriptions
Serial Port
No Using:
Do not communicate with the device through the serial port.
RS485(PC):
Communicates with the device through the RS485 serial port.
Master Unit:
When RS485 is used as the function of “
Master unit
”, the device will act
as a master unit, and it can be connected to the RS485 fingerprint & card reader.
Baud Rate
The rate at which the data is communicated with PC, there are 4 options of baud rate:
115200 (default), 57600, 38400, and 19200.
The higher the baud rate, the faster is communication speed, but also the less reliable.
Hence, a higher baud rate can be used when the communication distance is short;
when the communication distance is long, choosing a lower baud rate would be more
reliable.
5.3.
PC Connection
To improve the security of data, please set a Comm Key for communication between the device and the
PC.
The connection password needs to be entered before the device can be connected to the PC software if a
Comm Key is set.
Select
PC Connection
on the
Comm.
Settings interface to set
Comm Key
.
