- Joined Oct 29, 2009
I know there is a difference in how cat 5,6.7 cables are manufactured. But is there a real difference in the RJ45 jacks and connectors?
Cat 7 uses shielded pairs with an overall shield so the new GG45 (for Cat 7A with four quadrant pairs) type compatible connectors are different.
Cat 5 has been deprecated and not recommended for use. I see many Cat 5 installations and they all have issues. Replace it ASAP. Cat 5e and Cat 6 wiring to the jack pins is the same. However, one critical difference is how the backplane is wired. There are very specific standards with Cat 6, such as how the connecting cable is bent.
by Robert Keim
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