How to use a Crimping tool

 Attaching an RJ45 crystal (connector) to a LAN or Ethernet cable requires stripping the outer jacket, arranging the internal wires in a standard order, and securing them with a crimping tool. [1]

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What You Need

• Ethernet cable (Cat 5e, Cat 6, or Cat 6A)
• RJ45 connectors (standard or pass-through/EZ type)
• Wire stripper or the stripping blade on a crimper
• Crimping tool matching your RJ45 connector type
• Network cable tester (recommended to verify connections) [1]

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Step-by-Step Instructions

1. Strip the Outer Jacket

• Use your wire stripper to remove about 3 cm (1.2 inches) of the outer plastic jacket from the end of the cable.
• Be careful not to nick or cut the insulation of the inner copper wires.
• Remove any internal plastic cross-filler (crosstalk separator) or pull-string if your cable has them. [1, 2, 3, 4]

2. Untwist and Arrange the Wires

• Untwist all four pairs of wires so you have 8 individual wires. [1]
• Arrange them side-by-side following the T568B wiring standard (most common for home and office networks) from left to right:
  1. White/Orange
  2. Orange
  3. White/Green
  4. Blue
  5. White/Blue
  6. Green
  7. White/Brown
  8. Brown [1]

3. Trim the Wires Evenly

• Pinch the 8 wires tightly between your fingers and straighten them out as flat as possible.
• Use flush cutters or the blade on your crimper to cut the tips straight across, leaving about 1.5 cm (0.5 inches) of exposed wire. [1, 2]

4. Insert into the RJ45 Connector

• Hold the RJ45 connector with the plastic clip facing down (away from you or pointing toward the floor) and the gold contacts facing up.
• Push the wires firmly into the connector.
• Make sure each wire stays in its exact color lane and goes all the way to the front tip of the plug. The outer cable jacket should sit slightly inside the base of the connector for strain relief. [1, 2, 3, 4]

5. Crimp the Connector

• Place the RJ45 plug into the matching slot of your crimping tool.
• Squeeze the handles firmly until the ratchet mechanism releases or you feel a solid snap.
• If using a pass-through (EZ) connector, the tool will automatically slice off the excess wire extending out of the front. [1, 2, 3]

6. Test the Cable

• Repeat the entire process for the other end of the cable (using the same T568B standard).
• Plug both ends into a network cable tester to make sure all 8 lines have proper continuity and no crossed or broken connections. [1, 2]

Watch a visual demonstration on how to strip, arrange, and crimp an RJ45 connector onto an Ethernet cable:

1:29

How to crimp an RJ45 connector? 🌐🔌 Strip the Ethernet cable ...

27K views · 4 days ago

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Are you working with Cat 5e or Cat 6 cable, and do you need help checking the color pinout for a straight-through vs. crossover cable?