GMLT-SS20 Multi Loose Tube

The PAMIX GMLT-SS20 Outdoor Optical Fiber Cable is a robust, steel-armored cable engineered for demanding outdoor environments. Suitable for underground ducts, laying on cable trays, and direct buried installations, this 96-fiber multi-loose tube cable provides exceptional mechanical performance, temperature stability, and high protection against rodents.

General Construction & Application This cable is built around a heavy-duty 2.0 mm steel central strength member. It features a multi-loose tube structure made of PBT, with each tube filled with a thixotropic jelly compound and surrounded by a flooding jelly compound for complete water blocking. A 0.20 mm corrugated steel tape armor layer ensures superior rodent protection and improved crush resistance. The entire core is protected by a UV-resistant, 1.6 mm black PE outer jacket equipped with rip cords for easier cable stripping. This design prevents loose tube shrinking and ensures excellent hydrolysis resistance.

Cable Design Parameters

• Cable Type: Outdoor Steel Armored

• Fiber Type: SM G.652.D (Single Mode)

• Fiber Count: 96 fibers

• Loose Tubes: 8 tubes (PBT, 1.9 mm thickness)

• Cable Outer Diameter: 11.2 ± 0.5 mm

• Central Strength Member: 2.0 mm Steel

• Armoring: Corrugated Steel Tape (0.20 mm thickness)

• Outer Sheath: PE, Black (1.6 ± 0.1 mm thickness)

• Water Blocking: Thixotropic Jelly Compound (in tubes) + Flooding Jelly Compound (between tubes)

• Tensile Strength (Long / Short): 600 N / 1500 N

• Crush Load (Long / Short): 300 N / 1000 N/100mm

• Bending Radius (Static / Dynamic): 10D / 20D

• Operating Temperature: -40 °C to +60 °C

Optical Characteristics (SM G.652.D)

• Core / Cladding Diameter: 9 / 125 µm

• Coating Diameter: 250 µm

• Attenuation:

  • @ 1310 nm: ≤ 0.36 dB/km

  • @ 1383 nm: ≤ 0.32 dB/km

  • @ 1550 nm: ≤ 0.22 dB/km

  • @ 1625 nm: ≤ 0.24 dB/km

• Mode Field Diameter: 9.2 ± 0.4 µm (@ 1310nm) / 10.4 ± 0.8 µm (@ 1550nm)

• Zero Dispersion Wavelength: 1300 – 1324 nm

• Cable Cut-Off Wavelength (λ cc): ≤ 1260 nm

• Fiber Identification: Standard 12 colors according to EIA/TIA 598 (Blue, Orange, Green, Brown, Grey, White, Red, Black, Yellow, Violet, Pink, Aqua).

Industry Standards & Testing Manufactured and rigorously tested to meet global IEC standards, including:

• Mechanical & Environmental: IEC 60794-1-2 (E1 Tensile, E3 Crush, E4 Impact, E6 Pending, E7 Torsion, F1 Temp Cycling, F5B Water Penetration)

Ordering Information

• Article Number 1012730: PAMIX GMLT-SS20 Outdoor Optical Fiber SM G.652.D Cable 8 × 12 cores (96 Fibers), single jacket, Steel Tape