What type of cable is defined as a CM cable?

What type of cable is defined as a CM cable?

• A. Shielded twisted-pair cable used outdoors
• B. An unshielded twisted-pair cable used indoors
• C. Coaxial cable for high-frequency transmission
• D. Fiber optic cable for data transmission

Answer: (B)

The term "CM cable" stands for "Communications Multiservice" cable, which is commonly associated with unshielded twisted-pair (UTP) cables that are designed for indoor use. These cables are made to meet specific safety standards, particularly related to fire hazards, and are typically used in networking applications such as Ethernet connections in homes and offices. CM cables are not suited for outdoor use because they lack the necessary materials and protection against environmental factors. This makes the classification important for installers and technicians to ensure that they choose the appropriate type of cable for the specific installation conditions. Therefore, understanding the nature and intended use of CM cables is crucial for maintaining optimal performance and safety in broadband installations.

The term "CM cable" stands for "Communications Multiservice" cable, which is commonly associated with unshielded twisted-pair (UTP) cables that are designed for indoor use. These cables are made to meet specific safety standards, particularly related to fire hazards, and are typically used in networking applications such as Ethernet connections in homes and offices.

CM cables are not suited for outdoor use because they lack the necessary materials and protection against environmental factors. This makes the classification important for installers and technicians to ensure that they choose the appropriate type of cable for the specific installation conditions. Therefore, understanding the nature and intended use of CM cables is crucial for maintaining optimal performance and safety in broadband installations.