User's Manual

Table Of Contents

4-inch Visible Light Terminal

User Manual

Serial Comm 6.2

Serial Comm function facilitates to establish communication with the device through a serial port (RS485/

Master Unit).

Tap Serial Comm. on the Comm. Settings interface.

Function Description

Function Name

Descriptions

Serial Port

no using: Do not communicate with the device through the serial port.

RS485(PC): Communicates with the device through 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 RS485 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 is the baud rate, the faster is the 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.

PC Connection 6.3

Comm Key facilitates to improve the security of data by setting the communication between the device

and the PC. Once the Comm Key is set, its connection password must be provided before the device gets

connected to the PC software.

Tap PC Connection on the Comm. Settings interface to configure the communication settings.