Multitube Double Jacket Indoor Cable
Multitube Double Jacket Indoor Cable - Image 2

Multitube Double Jacket Indoor Cable

  • Available in 12–144 fiber counts
  • Double jacket – LSOH outer / PE inner
  • Fibre-glass yarns as a strain relief and rodent protection
  • SZ stranded cable core,FRP central rod 
  • PBT loose tubes Ø0,067in (1,7mm) with optical fibres Fillers
  • Rodent protection
  • Designed for teletechnical ducts or directly buried
  • Fully dielectric

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General Specifications
Product type Indoor Multitube Double Jacket Cable
Jacket Material  LSOH（Low Smoke Zero Halogen） outer / PE（Polyethylene） inner
Jacket Marking Feet/Meter
Subunit Type Gel-filled
Fiber Coloring Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow,Violet, Rose, Aqua
Subunit, quantity 6 8 12
Fibers per Subunit, quantity 12
Active tubes 1-6 8 12
Total Fiber Count 12-72 96 144
Dimensions
Diameter Over Jacket 9.1 mm( 0.358 in) 10.3 mm( 0.406 in) 12.3 mm( 0.484 in)
Mechanical Specifications
Minimum Bend Radius, unloaded 136.5 mm (5.374 in) 154.5 mm (6.083 in) 184.5 mm (7.264 in)
Minimum Bend Radius, loaded 182 mm (7.165 in) 206 mm (8.110 in) 246 mm (9.685 in)
Tensile Load, Installation, maximum 2700 N（607 lbf） 3000 N (674 lbf) 3000 N (674 lbf)
Tensile Load, Operation, maximum 1300 N (292 lbf) 1500 N (337 lbf) 1300 N (292 lbf)
Compression 10 N/mm | 57.101 lb/in
Flex 15 cycles
Impact 2.94 N-m | 26.021 in lb
Twist 10 cycles
Optical Specifications, Wavelength Specifications
Fiber Type G.652.D and G.657.A1
Attenuation, maximum 0.3 dB/km @ 1,550 nm | 0.4 dB/km @ 1,310 nm
Environmental Specifications
Installation temperature -15 °C to +55 °C (+5 °F to +131 °F)
Operating Temperature -40 °C to +70 °C (-40 °F to +158 °F)
Storage Temperature -40 °C to +70 °C (-40 °F to +158 °F)
Cable Qualification Standards ANSI/ICEA S-87-640 | IEEE-1222
Packaging and Weights
Cable weight 92 kg/km (61.821 lb/kft) 107 kg/km (71.901 lb/kft) 158 kg/km (106.171 lb/kft)

  • Building Entry & Riser Backbone

  • Inter-building Campus Connectivity 

  • Duct & Cable Tray Installation 

  • Transition Free (Outdoor to Indoor) 

  • Rodent-Prone Underground Ducts 

Q1: What is the purpose of the “Double Jacket” and “All-Dielectric” design in this cable?

  • Double Jacket Protection: The combination of inner and outer jackets provides enhanced mechanical strength, crush resistance, and moisture protection. The flame-retardant Low Smoke Zero Halogen (LSZH) outer jacket meets strict indoor fire safety standards, while the inner jacket offers an added layer of core protection.

  • All-Dielectric Construction: Featuring a central Fiber Reinforced Plastic (FRP) strength member, the cable contains no metallic components. This makes it completely immune to electromagnetic interference (EMI) and eliminates the need for grounding when routed near electrical lines.

Q2: What are the physical and structural specifications of this cable?

  • Fiber Count Options: Available in standard fiber counts ranging from 12 to 144 fibers (e.g., 12–72, 96, and 144 fibers).

  • Loose Tube Structure: Employs an SZ stranded design with gel-filled PBT loose tubes to prevent water ingress, centered around a non-metallic FRP rod.

  • Rodent Protection: High-modulus glass yarns are stranded around the cable core to act as tensile strength elements and provide effective resistance against rodent bites.

Q3: What fiber type is used, and what are its optical attenuation performance standards?

  • Fiber Standards: Utilizes dual-standard single-mode optical fiber complying with both G.652.D and bend-insensitive G.657.A1 specifications, ensuring low loss over long distances and excellent flexibility for tight indoor routing.

  • Maximum Attenuation Coefficients:

    • <= 0.4 dB/km @ 1310 nm

    • <= 0.3 dB/km @ 1550 nm

Q4: What are the mechanical load limits and bend radius requirements?

  • Maximum Tensile Strength:

    • Installation (Short-Term): Up to 2700 N ~ 3000 N depending on fiber count.

    • Operation (Long-Term): Up to 1300 N ~ 1500 N.

  • Minimum Bend Radius:

    • Loaded (Dynamic/Installation): 20 x cable outer diameter (182 mm ~ 246 mm).

    • Unloaded (Static/Operation): 15 x cable outer diameter (136.5 mm ~ 184.5 mm).

Q5: What are the operating temperatures and recommended application scenarios?

  • Typical Applications:

    • Building backbone cabling, vertical risers, and horizontal cable pathways.

    • Telecommunication ducts or cable trays with high humidity or rodent risks.

    • Inter-building and data center equipment interconnections.

  • Thermal Performance:

    • Installation Temperature: -15°C to +55°C

    • Operating & Storage Temperature: -40°C to +70°C

Engineered for Reliability, Built for Trust

At Telexc, we don’t just supply hardware—we secure your global network deployment. Operating from China’s premier industrial clusters and the Tianjin logistics hub, we act as your private supply chain control tower, ensuring engineering precision and traceably consistent quality for every aerial installation.

Our Core Advantages

  • Full-Scenario Aerial Compatibility: We seamlessly bridge the gap between OSP fiber infrastructure, FTTH networks, and aerial deployment scenarios. Every component is structurally engineered to work harmoniously together, drastically increasing on-site installation efficiency.
  • Strict Engineering Standard Alignment: Our technical design loops strictly align with international benchmarks, including IEC, ITU-T, and IEEE standards. This ensures our hardware excels under extreme environmental stresses—from intense UV exposure to heavy wind and ice loads.
  • Independent Multi-Stage Quality Control: We act as your eyes on the ground. From raw material stress simulations to finished product compliance, our dedicated QC team performs rigorous multi-stage audits so you receive exactly what your engineers approved.
  • Optimized Logistics & Flexible Partnerships: Leveraging the logistics power of the Tianjin port, we guarantee reliable transit, competitive factory-direct structures, and transparent milestone tracking to keep your network projects moving forward without compromise.

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