Reply to post: Re: It's called a choke.

Bright spark dev irons out light interference

swm Bronze badge

Re: It's called a choke.

When I worked in research I would use ribbon cable to send high-speed signals from one side of the lab to the other. Never had a problem until I interfaced to a Xerox machine. The interface didn't seem to work but on closer inspection I found it wasn't the 50 foot ribbon cable but the connection from one card to the adjacent card in the Xerox machine. Using a large voltage swing CMOS driver on the card driving the other card fixed the problem. Xerox machines were electrically noisy with an inadequate grounding scheme.

TTL never liked driving long wires. I always used series termination at the driving end.

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