Subscriber Discussion

Can You Twist Twisted Pairs?

U
Undisclosed #1
Oct 21, 2016
IPVMU Certified

Stupid question.  

If you have a few category cables in a conduit, will twisting the cables around each other, (to remove excess length), affect the performance of the cable?

GR
Greg Rhoades
Oct 21, 2016
IPVMU Certified

If you're using cheap cable you could be increasing the possibility of crosstalk between the cables. I want to say you're better off putting in a junction box and putting in a service loop to remove the excess length.

U
Undisclosed #1
Oct 21, 2016
IPVMU Certified

ok, but why?

inside the cable you already have two sets of twists,

  1. the wires are twisted to form pairs
  2. the pairs are twisted to make the cable

does step 2 increase crosstalk?

if not then why would

3. twist the cables into pvc

UI
Undisclosed Integrator #2
Oct 21, 2016

This is more work than just putting a junction box up or cutting the cable to proper length and reterminating.

New discussion

Ask questions and get answers to your physical security questions from IPVM team members and fellow subscribers.

Newest discussions