Monday, September 30, 2019

Untwisted pair length in gigabit Ethernet cables

I am a test system designer, not a network engineer, looking for some direction in where to find the appropriate standard.

I am working on a design in a test station that will require passing gigabit Ethernet through a non-standard connector (think similar to a D-sub style of pins).

I know there is a maximum length of untwisted pair allowed in a Ethernet cable run before the signal is significantly degraded to the point it can no longer link at the desired rate if at all.

What I am having trouble with is where to find this specification. I don't necessarily need an answer here to the maximum length, but pointing me in the direction of the appropriate spec or a commercial product spec referencing the industry standard would be all I need.



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