3 ms·
> All signals are output at the same time, giving perfect timing. Wonder how they do that. The pairs are normally spun at different rates to cancel crosstalk,
by labawi 6y ago
> All signals are output at the same time, giving perfect timing.
Wonder how they do that. The pairs are normally spun at different rates to cancel crosstalk, so I would expect them to have different lengths.
- anonymousiam 6y agoI agree that their claim of perfect timing is unlikely. Typically each twisted pair is deliberately spun with a different (but constant) number of twists/distance. Crosstalk is reduced by doing this. Most of the rest of the transfer function issues are resolved by the DSP equalization (done by the PHY) that occurs when the link is negotiated. It's possible that in their cables, each twisted pair has a shifting number of twists/distance, and that the shifts are staggered across the four pair to ensure perfect electrical distance while maintaining good crosstalk isolation. What is not said is that it is completely unnecessary to have perfect timing because the DSP equalization will correct for the timing offsets.