RS485 output signal issue

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sanatmishra89

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Hello,

I am using two RS485 tranceivers (MAX485). When I provide a 5V square wave at the input to the driver, I measure a constant 3V at the ouput (A and B) of the driver. Shoudn't I get a square wave at the output of the driver??

Please help!!

Regards
 

I have connected the DE pin HIGH. But stil the output is constant 3V.

Sanat
 

Are you looking at this with a voltmeter or an oscilloscope.
 

FlapJack said:
Are you looking at this with a voltmeter or an oscilloscope.
Click to expand...

i just want to see your schematic drawings in order to see if there is any mistakes. In addition if you want you can add a oscilloscope scope signal values.
 

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