RDC6445G Control Panel Connection Line Port Pin Definition Explanation

Regarding the pin definition of the RDC6445G control panel connection line port, the explanation is as follows:

Yellow (TXD):
Transmit Data
This pin is used to send data from the control panel to an external device. In serial communication, TXD is the transmission line.

Red (RXD):
Receive Data
This pin is used to receive data from an external device or controller. In serial communication, RXD is the reception line.

Green (RS):
RS485 Differential Signal
This pin is typically used for RS485 communication protocol, responsible for transmitting signals in a differential signaling system. RS485 is commonly used for long-distance data transmission and communication between multiple devices.

Blue (GND):
Ground
This is the system's ground (negative terminal of the power supply), which provides a common ground for the device, ensuring electrical stability and safety.

Brown (5V):
5V Power Supply
This pin provides a 5V power supply, typically used to power the panel or connected devices with a stable voltage.