CommScope 1000 ft of 400 Series Plenum Ultra Low Loss Coax Cable [Discontinued]

This is bulk cable and is not terminated with ends. It cannot be used as is and must be terminated on-site. If you are looking for pre-terminated cable that can be used out of the box, please see our Pre-Terminated CommScope CNT-400-P Cable page.

CommScope CNT-400-P-1000 is 1,000 ft of 400-series plenum 50-ohm coax cable that’s ideal for medium length runs through plenum spaces or where required by code.

A plenum is a space within a building that is used by the heating, ventilation, and air conditioning system for airflow.  Typically, it is the space above a drop ceiling, but can also be below a floor.  If you have return air vents and there is not a duct attached to the back of the return air vent, it is a plenum space and plenum cables should be used.  There are other factors that can require plenum rated cable so be sure to check with your local code enforcement officer if you're unsure.

400 series cable is a 3/8” diameter cable that works well in runs that are 10 to 100 ft long.  The CNT-400-P cable features a loss of 4.63 dB per 100 ft over the lower frequencies and 7.0 dB per 100 ft over the higher frequencies that are used for cellular communications.  For runs longer than 100 ft or where you need to maximize performance, we recommend moving up to a ½” plenum cable.

The CNT-400-P cable is white.  It should only be used indoors and away from direct sunlight since the jacket is not UV resistant and will break down after long-term exposure to sunlight.

This cable is unterminated and will come on a spool.  The cable must be terminated with the proper cable connectors before it can be used.  To properly terminate 400 series cable, we recommend the following accessories:

• Cable Connectors/Terminations
• LMR-400 Prep Tool
• LMR-400 Crimp Tool

Pre-terminated cable is also available here: Pre-Terminated CommScope CNT-400-P Cable.

Bulk cable may be returned only if it is in new condition.  Any cable that has been removed from its box or spool may not be returned.