How to Crimp BNC Connectors
A Bayonet Neill-Concelman (BNC) connector is a common method of terminating coaxial cable for radio frequency (RF) signals. It's frequently used as an alternative to the more common RCA connector in many consumer electronic devices. You may also need to crimp BNC connectors for ethernet networks. This requires a cable stripper/cutter and a BNC crimper.
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Things You'll Need
- Coaxial cable
- Cable stripper
- Crimp ferrule
- BNC connector
- BNC crimping tool
Instructions
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1
Cut the end of the cable by making a clean, right-angle cut through the cable with the cutting portion of the cable stripper. Place a crimp ferrule over the end of the cable and slide it down the cable until it's needed.
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2
Remove 5/16-inch of the outer sheath from the end of the cable without damaging the other layers. Fold the copper braiding back from the inner sheath of the cable and pull it back so that it fits snugly over the outer sheath.
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3
Cut the exposed inner sheath from the last ¼-inch of the cable without cutting the inner copper core. This will expose ¼ inch of the inner copper core. Trim the end of the copper core to a 45-degree angle without cutting off more than necessary.
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4
Push the BNC connector onto the end of the cable until the outer sheath is flush with the inner face of the BNC connector. Fold the exposed braid back over the BNC connector while keeping the cable firmly seated within the connector.
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5
Slide the crimp ferrule up the cable and push it over the BNC connector and folded braiding as far as possible. Use the crimping tool to crimp the ferrule to the BNC connector in the form of a 0.32-inch hex.
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