Fiber Optic Cables
Stranded Loose Tube Light-Armored Cable (GYTS)
Outdoor stranded loose tube fiber optic cable with a central steel strength member and PSP armor in a PE sheath, for 2 to 144 fiber counts.
Key Features
Core construction, reinforcement and fiber count range of our stranded loose tube armored cable.
Stranded Loose Tube Design
Multiple 250μm fiber loose tubes are stranded around a central steel strength member, supporting cable cores up to 144 fibers.
Hydrolysis-Resistant High-Strength Tubes
High-strength loose tubes resist hydrolysis and are specially designed to prevent shrinkage over time.
PSP Armor Tape
A double-sided plastic-coated steel tape (PSP) is wrapped longitudinally around the cable core for crush resistance and moisture protection.
Central Steel Strength Member
A steel wire at the core center provides tensile strength, PE-sheathed on higher fiber count cables.
100% Core Filling
Tube and cable core filling compound, plus polypropylene (PP) filler rods where needed, keep the cable fully watertight and symmetrical.
2 to 144 Fiber Counts
A wide range of standard configurations to match network scale, from small distribution to high-count trunk routes.
OEM & ODM Capabilities
Custom fiber count, fiber type, sheath color and packaging tailored to your project.
Custom Fiber Count
Fiber count produced to your specified network plan, beyond the standard 2 to 144 fiber range.
Fiber Type Selection
Fiber type produced to your network specification — contact our team with your required fiber standard.
Custom Sheath Color
PE sheath color produced to your specification for project identification, beyond standard black.
Custom Length & Packaging
Long delivery lengths on wooden or steel drums, tailored to your installation and logistics requirements.
Custom Branding & Marking
Customer logo and cable surface marking printed to your brand specification.
Sampling & Volume Production
Small-batch sampling for qualification followed by scalable volume production once specifications are confirmed.
Technical Specifications
General specifications, fiber count snapshot and full mechanical parameters across all 15 configurations.
| Standard | YD/T 901-2001, IEC 60794-1 |
|---|---|
| Loose Tube | High-modulus, hydrolysis-resistant plastic, water-resistant filling compound |
| Central Strength Member | Steel wire (PE-sheathed on higher fiber count cables) |
| Armor | PSP (double-sided plastic-coated steel tape) |
| Filler Rods | Polypropylene (PP), used where tube count is reduced |
| Sheath | PE (polyethylene) |
| Storage / Operating Temperature | -40℃ to +70℃ |
| Application | Outdoor duct, direct burial-adjacent and aerial fiber networks |
| Cable Type | Fiber Count | Cable Diameter |
|---|---|---|
| GYTS-2~6 | 2~6 | 10.2mm |
| GYTS-38~48 | 38~48 | 11.2mm |
| GYTS-134~144 | 134~144 | 17.2mm |
| Custom | On Request | On Request |
| Cable Type | Fiber Count | Tubes | Fillers | Cable Diameter (mm) | Cable Weight (kg/km) | Tensile Strength Long/Short Term (N) | Crush Resistance Long/Short Term (N/100mm) | Bending Radius Static/Dynamic |
|---|---|---|---|---|---|---|---|---|
| GYTS-2~6 | 2~6 | 1 | 4 | 10.2 | 116 | 600/1500 | 300/1000 | 10D/20D |
| GYTS-8~12 | 8~12 | 2 | 3 | 10.2 | 116 | 600/1500 | 300/1000 | 10D/20D |
| GYTS-14~18 | 14~18 | 3 | 2 | 10.2 | 116 | 600/1500 | 300/1000 | 10D/20D |
| GYTS-20~24 | 20~24 | 4 | 1 | 10.2 | 116 | 600/1500 | 300/1000 | 10D/20D |
| GYTS-26~30 | 26~30 | 5 | 0 | 10.2 | 116 | 600/1500 | 300/1000 | 10D/20D |
| GYTS-32~36 | 32~36 | 6 | 0 | 10.6 | 129 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-38~48 | 38~48 | 7 | 1 | 11.2 | 141 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-50~60 | 50~60 | 5 | 1 | 11.2 | 141 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-62~72 | 62~72 | 6 | 2 | 12.0 | 159 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-74~84 | 74~84 | 7 | 1 | 13.6 | 209 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-86~96 | 86~96 | 8 | 0 | 13.6 | 209 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-98~108 | 98~108 | 9 | 1 | 15.4 | 232 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-110~120 | 110~120 | 10 | 0 | 15.4 | 232 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-122~132 | 122~132 | 11 | 1 | 17.2 | 280 | 1000/3000 | 300/1000 | 10D/20D |
| GYTS-134~144 | 134~144 | 12 | 0 | 17.2 | 280 | 1000/3000 | 300/1000 | 10D/20D |
Construction & Configuration
Layer-by-layer breakdown from the central strength member out to the PE sheath.
Fiber — 250μm in Loose Tube
250μm fibers are positioned in loose tubes made of high-modulus, hydrolysis-resistant plastic.
Tube & Core Filling Compound
Water-resistant filling compound inside each tube, plus filling in the gaps of the cable core, blocks water ingress.
Central Strength Member — Steel Wire
A steel wire at the center of the core, PE-sheathed on higher fiber count cables, is the metallic strength member the tubes strand around.
Loose Tubes (& PP Filler Rods) Stranded Around Core
Loose tubes, together with polypropylene filler rods where the tube count is reduced, are stranded around the strength member into a compact, circular core.
PSP — Plastic-Coated Steel Tape
A double-sided plastic-coated steel tape is applied longitudinally over the cable core for crush resistance and moisture protection.
PE Sheath
A polyethylene sheath completes the cable, protecting it from ultraviolet radiation in outdoor installation.
Standards & Test Documentation
Design standards, watertight design and environmental temperature ratings.
YD/T 901-2001 & IEC 60794-1
GYTS complies with the YD/T 901-2001 and IEC 60794-1 standards for stranded loose tube light-armored optical cables.
Four-Point Water Blocking
Steel central strength member, tube filling compound, 100% cable core filling and PSP armor together keep the cable watertight.
-40℃ to +70℃
Storage and operating temperature -40℃ to +70℃, with a PE sheath rated for outdoor UV exposure.
Request a Quote for Stranded Loose Tube Cable
Send us your required fiber count, fiber type, sheath color, length and quantity. Our team will review the specification and prepare a quotation for your project.