ASU
Cytech
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Product Description
The ASU optical fiber cable is constructed by inserting 250um fiber into a loose tube made of a high-modulus material filled with a water-repellent compound.The loose tube is provided with a water blocking material to ensure the longitudinal blocking of the cable, and two parallel glass fiber reinforced plastics(FPR) are placed beside the loose tube to extrude the polyethylene sheath to from a cable.
•Good mechanical and temperature properties;
•The loose tube material itself has good hydrolysis resistance and high strength;
•The tube is filled with a special grease to protect the fiber;
•Two FRPs ensure the tensile strength of the cable;
•PE jacket has good resistance to UV radiation;
•Small diameter,light weight and easy to lay.
Applications:Long-distance communication,inter-office communication and fiber optic cable entry
Laying method:Strong current area,Overhead
Working temperature:-40℃~+70℃;
Bend Radius: Static 12.5 times the cable diameter,
Dynamic 25 times the cable diameter.
IEC 60794-1、IEEE1224、DL/T788-2016
Fiber count | Cable Diameter(mm) | Cable Weight(KG/KM) | Max.tensile strength(N) | Max.Crush resistance(N/100m) | ||
RTS | MAT | Short Term | Long Term | |||
2-24 | 6.8-8.4 | 35-50 | ≥2000 | ≥800 | ≥2200 | ≥1000 |
ASU spec optical fiber cable.pdf
- Conduct a site survey to determine the optimal routing path.
- Ensure compliance with industry standards (e.g., TIA/EIA, ISO/IEC).
- Select appropriate fiber type (single-mode/multi-mode) and cable jacket (indoor/outdoor).
- Use proper tension control to avoid excessive bending or stretching.
- Maintain the minimum bend radius (typically 10x the cable diameter).
- Protect the cable from sharp edges using conduits or protective sleeves.
- Perform fusion splicing or mechanical splicing for low-loss connections.
- Use high-quality connectors (LC, SC, ST, etc.) and ensure proper polishing.
- Test each splice with an OTDR (Optical Time-Domain Reflectometer) for signal integrity.
- Verify insertion loss and return loss using an optical power meter.
- Document fiber routes, splice points, and test results for future maintenance.
- Check for physical damage, rodent bites, or environmental wear.
- Inspect connectors and patch panels for dust or contamination.
- Clean connectors with lint-free wipes and approved fiber cleaning solutions.
- Use protective caps on unused ports to prevent dust accumulation.
- Conduct periodic OTDR testing to detect signal degradation or breaks.
- Monitor optical power levels to identify potential issues early.
- Locate faults using OTDR traces and repair damaged sections promptly.
- Replace degraded connectors or splices to maintain optimal performance.
- Update documentation after any modifications or repairs.
- Maintain an asset log for inventory and maintenance scheduling.
By following these best practices, ASU optical fiber cables can ensure high reliability, low attenuation, and long-term performance in communication networks.
ASU optic fiber cables are mainly used in high-speed data transmission scenarios, such as urban networks, wide area networks, data centers, telecommunications networks, and outdoor environments that require long-distance and stable data transmission.
Because of its high-speed transmission and stability, ASU optic fiber cable are widely used for high-speed data exchange in cities and large-scale cross-border and regional networks, supporting the global Internet skeleton.
In data centers and telecommunications networks, ASU optic fiber cable can ensure high-speed and stable data transmission, meet high bandwidth and low latency requirements, and improve network reliability and stability.
ASU optic fiber cable are particularly suitable for outdoor long-distance communication, such as crossing rivers, valleys, lightning concentrated areas, and overhead laying in special tension environments. Its self-supporting, easy to install features, and ability to withstand harsh environments make it perform well in these situations.
In addition to the above scenarios, ASU optic fiber cable can also be applied in industrial automation, smart grids, national defense security and other fields, meeting the needs of precise and high-speed data acquisition and control, as well as power monitoring and protection.
ASU (Aerial Self-Supporting) optical fiber cables are designed for overhead installation, commonly used in telecom and broadband networks. When selecting the right ASU cable, consider the following factors:
- Single-mode (SMF) for long-distance, high-bandwidth applications.
- Multimode (MMF) for shorter distances (e.g., LANs).
- Choose the core count based on current and future capacity needs (e.g., 12-core, 24-core, 48-core).
- Central Strength Member: Typically made of steel or FRP (fiber-reinforced plastic) for tensile strength.
- Waterproofing: Look for water-blocking materials (gel-filled or dry core) to prevent moisture damage.
-Armor: Some ASU cables have additional armor (e.g., corrugated steel tape) for rodent/mechanical protection.
- ASU cables have an integrated messenger wire (usually steel or aluminum alloy) for aerial installation without extra support.
- Ensure the cable’s weight and span length match pole spacing (typically 50m–100m).
- UV-resistant sheath (often black PE or LSZH material) for outdoor durability.
- Temperature range: Ensure the cable can withstand local climate conditions (e.g., -40°C to +70°C).
- Wind/ice load: Check mechanical strength for harsh weather.
- Comply with ITU-T, IEC, or ANSI/TIA standards.
- Look for ROHS compliance and flame-retardant (LSZH) options if needed.
- Confirm compatibility with existing poles or towers.
- Choose cables with easy-splice designs (e.g., loose tube for flexibility).
- Compare manufacturers(e.g., Corning, Prysmian, Cytech).
- Balance cost with quality and warranty(e.g., 20+ years lifespan).
Key Recommendation
For most telecom projects, a single-mode ASU cable with steel messenger wire, UV-resistant sheath, and dry core is ideal for long-term reliability. Always consult technical datasheets before purchasing.
Packaging Details: Packed on drums;
Drums length: 1KM,2KM, 3KM or 4KM, as per buyers’ request
Delivery detail: 15 days
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