RS-232 surge protection

Posted on Oct 8, 2012

The following circuit are provded here to give your idea how the overvoltage protecton circuits really work and how you can easily add some protection to your circuits. To make theose circuit really effective need careful component choosing and good construction. For best performace I recommend using commercial units from realiable data communication product manufacturers.

RS-232 surge protection
Click here to download the full size of the above Circuit.

RS-232C serial port lines are quite prone to be damaged by overvoltages. The damaged to computer serial ports have become more and more expensive to replace because of higher intergaration: usually you have to buy new motherboard if one serial port in it

Leave Comment

characters left:

New Circuits



Popular Circuits

Morse Code Alarm Clock
Wah pedal for Guitar
1296Mhz Rf Amplifier
VU Meter using LM3915
white led driver provides 64
Simple home audio power amplifier circuit schematic
Build a 5A H-bridge Motor driver! Old version
Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor
Sequence timer diagram composed by NE555
Serial mouse interface for Commodore
Very low frequency active filter 5G28 schematic