What is voltage level for logic 0 & 1 over Ethernet, RS232,RS485

[TeChSaVvY]

What is voltage level for logic 0 & 1 over Ethernet, RS232, RS485
(serial communication )etc.

 

[Tim Wescott]

What is voltage level for logic 0 & 1 over Ethernet, RS232, RS485
(serial communication )etc.

What answer do you get when you do a web search? Surely these are
popular topics for web pages.

 

[Charles Schuler]

What is voltage level for logic 0 & 1 over Ethernet, RS232, RS485
(serial communication )etc.

Ethernet is different ... it's a modulation scheme where data varies a
carrier. Google for the others.