SL485 Serial Port Expansion Board from Syslab for Heat Pump & Air Conditioner Units

the SL485 serial port expansion board is specially designed for our company's control board to expand the serial port. Usually it can only be used with our company's control board. through the serial port expansion board, one 485 serial port can be expanded into two 485 serial ports, which can be realized: 1 serial port the board can be connected to two handheld programmers or monitor and handheld at the same time. It can be expanded to monitor and so on in the dual serial port board with internal and external computers or modular computers, which is flexible and convenient to use.
L Strong anti-interference ability;

L Power supply anti-reverse protection function;

L Temperature range can be selected by jumper

L the world's leading CMOSens digital sensing technology

L Full range calibration, annual drift is less than 0.5%

L Adopt spring type terminal block, convenient and easy to use;

L Transmitter output signal 420mA, 05V and 010V can be selected by jumper;

L the surface of the controller circuit board is coated with three-proof paint to effectively prevent short circuit, moisture, salt spray, acid and alkali;