Multi Loose Tube Optical Fiber Cable

Loose tube fiber and tight buffered fiber.

Multi loose tube optical fiber cable.

Their designs utilize 250µm fibers in both central multi loose tube constructions ranging in fiber counts from 2 to 288. Multi loose tube cables in loose tube cables the coated fiber floats within a rugged abrasion resistant oversized tube which is filled with optical gel. Fiber optic cables for fttx projects single multi loose tube micro fiber optic cables with single mode optical fiber g 657a g 652d. Multi loose tube fiber optic cable cpr.

From the picture below we can see that loose tube fiber holds more than one optical fiber each individually. Both contain a type of strengthening member such as aramid yarn stainless steel wire strands or gel filled sleeves. 45 75 89 22 99 mon fri. Tight buffered and loose tube fiber are the two styles of constructions fiber optic cables offered.

Mgtsv fiber optic cable the fibers 200μm or 250μm are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water resistant filling compound. Tubes and fillers are stranded around the strength member into a compact and circular cable core. Up to 72 fiber 6 element dry core om1 om2 om3 om4 multimode or g 657a1 g 655cd single mode 250µm multi loose tube mlt rodent resistant internal or external i e duct cables with e glass strength members and low smoke zero.

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. 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. Download datasheet product updated on april 15th 2020. Each however is designed for very different environments.

Fiber optic cables are constructed in two ways. 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. The multi loose tube cable construction consists of up to 144 250µm optical fibers in 12 fiber gel filled loose tubes with fillers where appropriate sz stranded around a fiber reinforced plastic frp central strength member with waterswellable threads and waterswellable tape. Multi loose tube fibre optic cable is typically used in building backbone application networks in high risk harsh environments with high fibre counts.

A steel wire locates in the center of core as a metallic strength member. Since the tube does not have direct contact with the fiber any cable material expansion or contraction will not cause stress on the fiber.