Between them there are several common denominators like the fact that both have in their interior a strengthening member of sorts that can be made of stainless steel in the form of wire strands aramid yarn or gel filled sleeves.
Loose tube fiber cable.
Fiber optic cables are constructed in two ways.
Tight buffered and loose tube fiber are the two styles of constructions fiber optic cables offered.
Loose tube cables whether flooded under the jacket or water blocked with dry swellable materials protect the fibers from moisture and the long term degradation moisture can cause.
They protect the fiber core cladding and coating by enclosing everything within semi rigid protective sleeves or tubes.
From the picture below we can see that loose tube fiber holds more than one optical fiber each individually.
Their designs utilize 250µm fibers in both central multi loose tube constructions ranging in fiber counts from 2 to 288.
The configuration of loose tube cable comprises of a coated fiber placed within a loose tube which is filled with water resistant gel to protect fiber from tension and stresses caused by such harsh environment as moisture and a wide operation temperature range from thermal shock to ice loading.
Each however is designed for very different environments.
Fiber optic cable is available in many physical variations such as single and multiple conductor constructions aerial and direct burial styles plenum and riser cables etc.
Loose tube and tight buffered.
But there are two basic styles of fiber optic cable construction.
The gel within the loose tube construction stops the penetration of water and keeps it away from the fiber.
Loose tube cables the older of the two cable types are specifically designed for harsh outdoor environments.
Loose tube cables are optimized for outdoor applications.
Fiber loose tube cable belden s loose tube cables are ideal for both outdoor indoor outdoor applications including use in conduit direct burial lashed aerial trunking.