Fibers are housed in a loose tube that is made of high-modulus plastic and filled with tube filling compound. The water blocking tape is applied around the central tube. Then the tubes are armored with a corrugated steel tape (CST) logitudinally. Two parallel steel wires are embeded in the outer PE jacket.
 

Fibers are housed in a loose tube that is made of high-modulus plastic and filled with tube filling compound. The water blocking tape is applied around the central tube. Then the tubes are armored with a corrugated steel tape (CST) logitudinally. Two parallel steel wires are embeded in the outer PE jacket.
 

Self-supporting drop optical cable includes central optical fiber(s) with 2 parallel steel wires as the strength members placed on both sides,and an additional strength member(steel wire). Finally a LSZH jacket is extruded outside.
 

Fibers are positioned in a loose tube that is made of high-modulus plastic and filled with tube filling compound. The water blocking tape is applied around the central tube. Then the tubes are armored with a corrugated steel tape (CST) logitudinally. Two parallel steel wires are embeded in LSZH jacket.