The differences between universal and distribution optical fiber cables

Novice installers may have problems with choosing which type of the cable will be optimal for a particular application. Let's focus on the single- and multi-mode cables with 8 fibers, which register the highest sales figures:

Universal cable (left) and distribution cable (right)
1. Optical fiber
2. Gel inside the central tube
3. Central tube
4. Aramid yarn
5. LSZH jacket

 

 

Universal Ultimode cables can be used in indoor and outdoor applications. The fibers are contained in central gel-filled tube. The gel in the tube is a kind of protective coating for optical fibers, which absorbs mechanical stresses and protects against environmental factors.

The universal cables are mainly intended for horizontal connections in buildings and outside buildings. Due to the small size and flexibility, the cables are ideal for installation in cable ducts. They are used in modern FTTH and FTTB systems, in server rooms, between buildings. Because of the gel-filled structure, the vertical cable runs of the cables installed in buildings should not be longer (higher) than 30 meters.

Distribution Ultimode cables belong to the "Minibreakout" category intended for applications in buildings. The fibers in tight buffers are contained in one sheath. Individual fibers are comfortably accessible, which makes it easier to install optical connectors, to make splices etc. The aramid yarn is designed to protect fibers from mechanical damage. The jacket (sheath) is made of low smoke zero halogen flame retardant poly-olefin (LSZH). Indoor distribution cables from ULTIMODE IDC series are gel-free fiber optic cables intended for horizontal and vertical connections in buildings.