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How much should I untwist the pairs when I terminate the cable?

As little as practical. Keep each pair twisted until it is close to its IDC positions, then separate only what you need to dress and punch the conductors down.

Do not comb several centimetres of every pair dead straight because it looks tidy. The twists are part of how the cable controls crosstalk.

Answered by
Dave
Practical Support · Data Cabinets Direct
Termination & installation 7 relevant products

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This answer applies to 7 products in the Installation Cable range.

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Cat6 U/UTP LSZH Installation Cable – Violet – 305m Original product context Cat6 U/UTP LSZH Installation Cable – Violet – 305m SKU: DLX-C-CAB-C6-UUTP-LSZH-305 View product →

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Cat5e U/UTP LSZH Cca Installation Cable – Green – 305m Cat5e U/UTP LSZH Cca Installation Cable – Green – 305m SKU: DLX-C-CAB-C5E-UUTP-LSZH-CCA-305 View product → Cat5e U/UTP LSZH Installation Cable – Violet – 305m Cat5e U/UTP LSZH Installation Cable – Violet – 305m SKU: DLX-C-CAB-C5E-UUTP-LSZH-305 View product → Cat5e U/UTP PE External Installation Cable – Black – 305m Cat5e U/UTP PE External Installation Cable – Black – 305m SKU: DLX-C-CAB-C5E-UUTP-PE-EXT-305 View product → Cat6 U/UTP LSZH Cca Installation Cable – Green – 305m Cat6 U/UTP LSZH Cca Installation Cable – Green – 305m SKU: DLX-C-CAB-C6-UUTP-LSZH-CCA-305 View product → Cat6 U/UTP LSZH Installation Cable – Violet – 100m Cat6 U/UTP LSZH Installation Cable – Violet – 100m SKU: DLX-C-CAB-C6-UUTP-LSZH-100 View product → Cat6 U/UTP PE External Installation Cable – Black – 305m Cat6 U/UTP PE External Installation Cable – Black – 305m SKU: DLX-C-CAB-C6-UUTP-PE-EXT-305 View product →