Cat6 cabling installation
Cat6 is the standard cable for desks, phones and printers in most commercial buildings. Cablify installs it from the telecom room to each outlet, terminated to category, labeled and tested.
- Bandwidth
- 250 MHz
- 1 Gb Ethernet
- Full 100 m channel
- 5 Gb Ethernet
- 100 m, IEEE 802.3bz
- 10 Gb Ethernet
- Up to 37 m expected, to 55 m in some conditions
- Conductors
- Solid copper, 22 to 24 AWG
What Cat6 carries, and how far
Speed and distance trade against each other on copper. At 10 Gb, crosstalk between neighboring cables in a bundle, called alien crosstalk, becomes the limit.
| Application | IEEE standard | Reach on Cat6 | Typical use |
|---|---|---|---|
| 1000BASE-T | 802.3ab | 100 m | Workstations, phones, printers |
| 2.5GBASE-T | 802.3bz (2016) | 100 m | Multi-gig switch and access point ports |
| 5GBASE-T | 802.3bz (2016) | 100 m | Multi-gig switch and access point ports |
| 10GBASE-T | 802.3an | Up to 37 m expected; 37 to 55 m depends on alien crosstalk; past 55 m may need mitigation | Short links only, such as inside a room |
Cat6 is enough for
- Desktops, laptops on docks and desk phones at 1 Gb
- Printers, copiers, time clocks and point-of-sale
- Most fixed cameras and card reader panels
- Spaces you expect to refit within a few years
Choose Cat6A for
- Wi-Fi access points, where TIA now requires two Category 6A cables
- Any link that needs 10 Gb past 37 m
- Large bundles carrying high-power PoE
- Labs, healthcare and spaces you plan to keep for a long time
Copper-clad aluminum is not Cat6
Some cable sold as Cat6 uses aluminum conductors with a thin copper coating. The Communications Cable and Connectivity Association says copper-clad aluminum communications cable violates several industry standards and does not carry a valid safety listing. The NEC requires copper conductors in communications cable, and TIA-568.2 calls for solid copper conductors of 22 to 24 AWG in horizontal cable.
Aluminum has higher resistance than copper, which matters when the cable carries PoE, and it breaks more easily at terminations. A simple continuity tester will not catch it.
How we buy cable. Cable comes through authorized distributors, and the jacket print is checked for the category, the NEC rating such as CMP or CMR, and the listing mark before the first box is opened.
What changed in TIA-568.2-E
TIA released ANSI/TIA-568.2-E on October 24, 2024, replacing the D edition that most specifications still name.
DC resistance unbalance
Limits now apply to Category 5e, 6 and 6A cable, permanent links and channels. Unbalance between conductors matters most when the cable carries power.
Power delivery
The power annex sets a 45 °C maximum ambient temperature and a 60 °C minimum cable temperature rating for links carrying PoE.
Thin patch cords
28 AWG cords are allowed with an insertion loss derating factor of 1.95, which shortens how much cord the channel can use.
Termination
Pair twists kept to within 13 mm (0.5 in) of the termination, and one wiring scheme, T568A or T568B, on both ends.
Common questions
Can Cat6 run 10 Gb Ethernet?
Over short runs. TIA TSB-155 says links up to 37 meters should work, links from 37 to 55 meters depend on alien crosstalk, and longer links may need mitigation. For 10 Gb across a full 100 meter channel, use Cat6A.
Is Cat6 good enough for Wi-Fi 6 or Wi-Fi 7 access points?
Cat6 carries 2.5 and 5 Gb to 100 meters, which covers many access point uplinks. TIA-568.1-E-1 now requires two Category 6A cables to each access point, so we use Cat6A for access points on new work.
How can I tell if cable is copper-clad aluminum?
Look for CCA on the jacket or a missing listing mark, scrape a conductor to see if it is silver underneath, or check the weight against a known copper cable. Certification testing often exposes it as well.
Does Cat6 have to be 23 AWG?
No. TIA allows 22 to 24 AWG copper conductors for horizontal cable. Many Cat6 cables use 23 AWG, but the gauge alone does not make a cable Cat6.
Request a Cat6 cabling quote
Send the address, the number of drops and the ceiling type if you know it. We price the cable rating each space needs.