CAT5 Pair with a dozen 100 meter elements

169

01:01:58

Thinking about RS485 driver and receiver over a long CAT5 run. 

values from:
https://en.wikipedia.org/wiki/Primary_line_constants

The receiver needs 400mV input.
The transmitter drives the pair with about 3V (I'm showing 2.5V). 

I think 100 times more elements are needed to see the frequency response, but this might be good for showing the signal level. 

published 10 years ago

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