Underwater Steel Wire Armored Direct Buried Fiber Optic Cable

GYTA33 steel wire fiber optic cable is not only for direct burial, climbing and other harsh environments, but also for shallow rivers and ocean basin communication link laying. GYTA33 armored optical fiber cable is with loose tube technology which makes the fibers good secondary excess length and allows the fibers free movement in the tube. These features keep the fiber stress free while the cable is subjected for longitudinal stress. Optimum mechanical protection such as high tensile, crush and impact resistant performances are achieved by the steel wire armor and the double jacket structure.


  • Full cross-section water-blocking structure to ensure good water-blocking and moisture resistance.
  • The loose tube is filled with special ointment for key protection of fiber.
  • The phosphate wire center stiffening member is of high modulus and corrosion resistance.
  • Double-sided vertically-clad laminated corrugated aluminum tape with thin round steel wire armor ensures mechanical resistance to compression, tensile, and ballistic performance, and meets the application requirements of climbing direct burial and underwater laying.


River; Shallow waters; Direct buried

Looking for More Submarine Fiber Cables Choices?

Are you looking for more choices in submarine fiber optic cables? Check out our Submarine Fiber Cables for seamless networking. If you need fiber cables that are custom-made for your specific needs, take a look at our Custom Fiber Cables section for personalized connectivity solutions.

Cable Cores


Fiber per Tube


Cable Sheath

Dual Polyethylene

Dielectric Strength Member

Steel Wire

Additional Strength Member

PE Coated Steel Tape

Loose Tube Diameter


Drum length

500m,1000m & 2000m(±3%)

Installation Temperature Range

-40℃ to 70℃ (-40°F to 158°F )

Operation Temperature Range

-30℃ to 70℃ (-22°F to 158°F )

Storage/Transport Temperature Range

-40℃ to 70℃ (-40°F to 158°F )

Crush Resistance

Short Term (4000 N/100mm); Long Term (8000 N/100mm)

Min. bending radius

Without Tension (10.0×ODmm); Under Max Tension (20.0×ODmm)

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