Network infrastructure
How to plan a Cat6A run
A Cat6A run is not just a longer Cat6 run. Most of the work happens before the first foot comes off the spool.
On this page
How far can Cat6A actually run?
One hundred metres, end to end. That is the number to remember, but it is not the number to design against. The standard budgets 90 m for the solid core cable in the wall and 10 m for the stranded patch leads at either end, so the moment you plan a 100 m in-wall run you have already spent the whole budget and left nothing for the patching.
Why choose Cat6A over Cat6?
Because Cat6 only carries 10 Gb for 55 m, and only if alien crosstalk stays low. Cat6A holds 10 Gb for the full 100 m. If a run is short and will never carry more than 1 Gb, Cat6 is honest and cheaper. If you are pulling cable into a wall you would rather not open again, the extra cost buys you the next decade.
What goes wrong on site?
Bend radius and bundling cause most of the trouble. Cat6A is thicker and stiffer than Cat6, and the crosstalk it rejects comes partly from its geometry, so crushing it into a tight corner undoes the thing you paid for. Keep the bend radius above four times the cable diameter, do not overtighten cable ties, and keep long parallel runs away from power.
Common questions
- How far can Cat6A run?
- 100 m end to end. Design against 90 m of solid core in the wall plus 10 m of patch leads, because that is how the standard budgets it.
- Does Cat6A need shielding?
- Only where it runs close to sustained interference, like parallel power. Unshielded Cat6A is rated for 10 Gb at 100 m on its own.
Akwasi Konadu
Builds and wires networks for businesses around Waynesboro, PA.