The standard wiring method for Category 6 network cables (Cat6) follows both

The standard wiring method for Category 6 network cables (Cat6) follows both T568B (domestic/international mainstream) and T568A wiring sequences. Both ends are consistent with straight-through cables (the most commonly used), while one end with A and the other with B is a crossover cable (rarely used).
1. Standard wiring sequence (with the metal tabs of the connector facing upwards, from left to right)
T568B (mainstream standard)
Orange white / 2. Orange / 3. Green white / 4. Blue / 5. Blue white / 6. Green / 7. Brown white / 8. Brown T568A
Green/White / 2. Green / 3. Orange White / 4. Blue / 5. Blue White / 6. Orange / 7. Brown White / 8. Brown
II. Wiring steps for types 2 and 6 network cables (Straight-through cables, both ends T568B)
Strip the wires
Use a network cable stripper to remove about 2–2.5 cm of the outer sheath, exposing the cross frame and 4 pairs of twisted wires.
Split and organize
Separate the wire pairs, straighten them out, arrange them according to T568B, and try to keep the twisted wires wound to the root (to reduce crosstalk).
Trim evenly
Trim the wire ends evenly, leaving about 1.5 cm (make sure it reaches the front of the crystal head).
Insert into the crystal head
The metal piece is facing upwards, and the wire core is pushed all the way to the bottom (the copper core can be seen at the front). Compression connection
Insert the network cable into the crimping slot and press it firmly.
Test the cable
Use a cable tester to measure an 8-core full-through (1–8 lights up sequentially).
III. Key Points (Special for Category 6)
It must use Category 6 connectors (larger size, with a split-line slot)
Cross-shaped frame: It can be shortened or kept, the wire pairs must be separated
Gigabit / PoE: The 8-core must be fully through (1-2 transmit, 3-6 receive, 4-5/7-8 for Gigabit and power supply)
IV. Applicable Scenarios
Straight-through cable (B-B): Computer ↔ Router / Switch, Monitoring, NAS (99% of scenarios)
Cross-over cable (A-B): In the early days, computer ↔ computer, modern devices basically automatically recognize, rarely used