CommScope Trunk & Distribution Cable - Manual (Page 30)

Integrated Messenger Installation
The most cost effective and reliable coaxial installation is possible today by using CommScope’s integrated
messenger products. Both our flagship QR ® and traditional P3 ® products are available in integrated messenger
designs, built to increase your aerial plant reliability while greatly reducing your installed costs.
How Do We Increase Your Plant Reliability?
Integrated messenger plant is not susceptible to the same expansion and contraction concerns as lashed plant.
The cable web binds the coaxial cable to the strand, so the two expand and contract as a unit. This is beneficial
to the installer, since integrated messenger coaxial plant does not require the installation of expansion loops.
The expansion loop, once removed, is also removed as a failure point.
Aerially installed coaxial cable is subject to many forces. These forces are developed due to wind and ice loading,
materials expansion and contraction, and the cables own weight. Correctly installed cable will survive the brunt of
these forces for years. Vibration and wind effects can strain the cable at pole passings, but by simply separating
the cable from the strand at the pole attachment, radial cracks can be eliminated.
4.1 Integrated Messenger Installation
Overview