Cat6 Characteristic Impedance

[CharlieD1956]

Hi, Does anyone know the Characteristic Impedance of the CAT6 pairs ? I am building a custom interface between 3 micro-controllers, and need to know what terminating resistors I should select for the cable, also, since the TPI (Turns Per Inch) appear to be different for the different pairs, are they different enough to exhibit different impedances ?
Thanks, CharlieD

 

[ex_bubblehead]

Cable specs here: http://www.rm-electrical.com/publish/technical-specs/technical-information/cat6-cable-specification/

Impedance is dependent on frequency.

 

[CharlieD1956]

Thanks for that ... 85 ~ 115 Ohm is the answer I was looking for ..
CharlieD