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  • TS Cables
  • August 16, 2023

How to Splice Ethernet Cable: A Step-by-Step Guide

Splicing an Ethernet cable, such as Cat5e, Cat6, or Cat6A, is a handy skill when you need to extend a cable or repair a broken connection. Here’s a step-by-step guide to help you splice Ethernet cables like a pro.

Materials Needed:

  • Two Ethernet cables (Cat5e, Cat6, or Cat6A)
  • RJ45 coupler or Ethernet cable splice connector
  • Wire cutter
  • Wire stripper
  • Crimping tool (if using RJ45 connectors)

Step 1: Cut and Strip the Cables

Cut both Ethernet cables to the desired length and strip about 1 inch of the outer insulation to expose the inner wires.

Step 2: Untwist the Wires

Untwist the inner wires of both cables, being careful to keep the color pairs together.

Step 3: Align the Wires

Align the wires of both cables according to the T568B or T568A standard, ensuring that the color order matches.

Step 4: Use a Coupler or Splice Connector

  • Option A: Insert the ends of both cables into an RJ45 coupler, ensuring the color order is consistent.
  • Option B: If using a splice connector, follow the manufacturer’s instructions to insert and secure the wires.

Step 5: Crimp the Connection (If Applicable)

If using RJ45 connectors and a splice connector, use the crimping tool to secure the connection.

Step 6: Test the Connection

Use a cable tester to verify that the connections are correct and that data can flow between the two spliced cables.


Splicing Ethernet cables is a practical solution for extending or repairing cables. By following these steps, you can successfully splice Cat5e, Cat6, or Cat6A cables to meet your specific networking needs.

Looking for Quality Ethernet Cables and Accessories?

Visit TSCables for a wide selection of Ethernet cables, connectors, and tools. Whether you need cables for home or business use, we have the products to meet your requirements. Explore our collection today!

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