This 4x UART media box can control RS232 x2/RS485 x2 devices. The speed of the RS232 x2/RS485 x2 can get up to 9600 bps for each port. 

Features:

• Passed CE/FCC certification 
• A DS18B20 1-Wire temperature sensor (optional)
• 8x GPIO-controlled LEDs
• One GPIO 5V Mini Fan control pin with ON/OFF control
• 2.0mm and 2.54mm pitch
• A real-time clock (RTC) function with a CR1220 battery socket
• 4x UART board power selection jumper that can select between Pi 3 or Micro USB
• 5V Mini Fan power selection jumper that can select between Pi 3 or Micro USB
• 24C32 HAT EEPROM (i2c-0) provided for future software updates
• Programmable 24C32 EEPROM (i2c-1)
• A 20x2 40 pin cable that connects the 4x UART board to the Pi 3
• The Pi Model 3B board can still use Bluetooth & Wi-Fi
• RS485 uses driver software to control the auto RTS

Output:

• RS232 x2 and RS485 x2 uses RJ45 output
• Each port's baud rate can get up to 9600 bps

Performance:

• Power regulator converting 5V from the Pi 3 to provide an individual 3.3V power for the 4x UART Board

Demo Software:

• A micro switch on the board that can be programmed for controlling 'Shut Down', 'Reboot' and much more

Technical specifications:

• PCB: 195mm x 85mm
• Metal Box: 200mm x 125mm x 55mm
• Fan screw holes: 80mm x 80mm and 40mm x 40mm

Demo Software Pack (*available upon purchase)

User Manual (*available upon purchase)