PC RS422 INTERFACE


Posted on Dec 22, 2012

This interface circuit provides electrically isolated RS422 communication interface to the PC serial port the isolation circuit protect the PC from direct connection to hazardous voltages.


PC  RS422  INTERFACE
Click here to download the full size of the above Circuit.

Figure 1 shows the circuit diagram of RS422 interface. Connector K1 is linked to the serial port of the PC, power to the PC side of the circuit is derived from the signal lines DTR and RTS. Positive supply is derived from RTS and negative supply from the




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Waveform Capture and Control
Digital Encoder with PIC16F57
Window comparator
temperature alarm circuit
Boost Switching Converter Design Equations
BCD to Seven Segment Decoder IC description
AVR Microcontrollers in Linux
Easy street light control circuit
Automatic lighting control circuit diagram composed of optocouplers
Using tap potentiometer loudness circuit



Top