Which type of cable is commonly used for direct buried outside plant applications?

The armored loose tube cable is specifically designed for direct buried outside plant applications due to its robust construction. This type of cable features a loose tube design that protects the individual fibers from environmental factors such as temperature variations and moisture, while the armor provides additional mechanical protection against physical damage from soil movement, rocks, and rodents. This makes it highly suitable for installation in harsh outdoor conditions where durability and resilience are crucial.

Loose tube cables, while also effective, lack the added protection of armor, making them less ideal for direct burial. Single mode and multimode cables refer to the types of fibers used but do not inherently imply protection against external threats. Thus, the armored loose tube cable is the preferred choice for ensuring the longevity and reliability of fiber optic installations in outdoor environments.