Week 7 · Network foundations

Ethernet cabling: RJ45, T568A/B, crimping and testing

Wi-Fi is convenient, but offices, schools, CCTV systems and servers still run on cable because it is faster, more reliable and harder to snoop on. Network technicians make and repair these cables every day. Today you make one that really works — and prove it with a tester.

Networking and security90 minutesIntermediateLevel 1 module

In this lesson you will

Tick them off as you read. This is a preview check-list.

Identify Cat5e/Cat6 cable, RJ45 plugs and the eight wire colours
Wire a straight-through cable to the T568B standard
Crimp an RJ45 plug correctly and test the cable with a cable tester
Explain when a crossover cable was needed and why most devices no longer need one

Your check-list0 of 4

Ticks here aren't saved until you sign in.

The full lesson is for enrolled students

Enrolled students get the complete notes: essential theory, key terms, a step-by-step practical walkthrough, an independent challenge, check-your-understanding questions and the take-home task.

Ethernet cabling: RJ45, T568A/B, crimping and testing

In this lesson you will

Keep track of your learning

The full lesson is for enrolled students

This lesson is waiting for you