Which marking identifies a limited-use communication cable suitable for dwellings and raceways?

Which marking identifies a limited-use communication cable suitable for dwellings and raceways?

• A. CM
• B. CMX
• C. CMM
• D. CMX-P

Answer: (B)

The marking on a communications cable tells you where it can be installed and what fire/usage restrictions apply. CMX identifies a limited-use communications cable, which is specifically suitable for dwellings and raceways. That makes it the right choice when the installation is in a home environment or routed through raceways, where the more general-use CM would not be restricted, and other markings correspond to different, less applicable or uncommon ratings. In short, CMX is the designation you look for when you need a limited-use cable for residential spaces and raceways.

The marking on a communications cable tells you where it can be installed and what fire/usage restrictions apply. CMX identifies a limited-use communications cable, which is specifically suitable for dwellings and raceways. That makes it the right choice when the installation is in a home environment or routed through raceways, where the more general-use CM would not be restricted, and other markings correspond to different, less applicable or uncommon ratings. In short, CMX is the designation you look for when you need a limited-use cable for residential spaces and raceways.