RS485 Wireless Module – 300m
The ATC-863 Wireless Data Transmission Module provides standard RS-232, RS-485, and UART/TTL interfaces for direct connection to computers, RS-485 equipment, SC modules, or other UART components.
The ATC-863 adopts a half-duplex communication channel, making it suitable for point-to-multipoint communication. The master station fully controls communication coordination, using address-coded data frames for transmitting data or commands. The slave stations receive these frames, compare address codes, and respond accordingly.
To avoid mutual interference, the upper-layer communication protocol ensures that only one wireless module transmits at any given time. Therefore, the transmission channel established by the ATC-863 is transparent to the user.
It can also be used for point-to-point communication, enabling a simple and seamless upgrade from wired (RS232/485/TTL) systems to wireless communication.
Specifications
-
Modulation Type: FSK / GFSK
-
Operating Frequency: 433 MHz
-
Transmission Power: 100 mW
-
Receiver Sensitivity: –121 dBm
-
Transmitter Current: < 40 mA
-
Receiver Current: < 20 mA
-
Sleep Mode Current: < 1 μA
-
Channel Data Rates: 1200 / 2400 / 4800 / 9600 / 19200 bps
-
Interface Data Rates: 1200 / 2400 / 4800 / 9600 / 19200 bps
-
RX/TX Switching Time: < 10 ms
-
Data Format: 8E1 / 8N1 / 8O1
-
Power Supply: 9–12 VDC
-
Communication Range: up to 300 meters
