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How to Cap a Coaxial Cable?

Published in Cable Termination 2 mins read

Capping a coaxial cable typically involves terminating it with a connector to prevent signal leakage and protect the cable end. Here's how you do it:

  1. Strip the Coaxial Cable: Use a coaxial cable stripper to remove the outer jacket, shielding, and dielectric material, exposing the center conductor.
  2. Insert the Connector: Attach a coaxial connector (usually a compression or crimp-on type) to the prepared end of the cable. The specific type of connector and attachment method will vary.
  3. Crimp or Compress: Using a crimping tool or compression tool appropriate for the connector type, secure the connector to the cable. This ensures a solid electrical and mechanical connection.

Detailed Steps:

  • Stripping:
    • Carefully strip away the outer jacket, being mindful not to nick the shielding beneath.
    • Fold back the shielding.
    • Strip away the dielectric material to expose the center conductor. Leave the correct length of center conductor exposed, as specified by the connector instructions.
  • Connector Attachment:
    • Slide the connector body over the prepared cable end. Ensure the center conductor is properly aligned and inserted into the connector.
    • If using a compression connector, slide the compression ring onto the cable before inserting the connector body.
  • Crimping/Compression:
    • Insert the cable and connector into the appropriate crimping or compression tool.
    • Squeeze the handles of the tool until the connector is securely attached. The tool will usually have a ratcheting mechanism to ensure proper compression.

The process effectively caps the coaxial cable by providing a sealed, terminated end.

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