High-density armored fiber cables tailored for direct burial, sub-duct, and aerial deployments across Portugal's Central Region.
Coimbra, historically recognized as the intellectual epicenter of Portugal and a crucial economic nexus of the Centro Region, is currently undergoing an intensive digital transformation. Home to the world-renowned University of Coimbra, the iParque technology campus, and rapidly expanding biomedical and software research hubs, the municipality demands next-generation fiber-optic backbones capable of sustaining sub-millisecond latency, multi-terabit bandwidth, and extreme physical longevity.
Deploying optical communication lines in Coimbra presents unique topographical and structural challenges. The city’s historic center—featuring centuries-old stone structures, narrow subterranean conduits, and dense granite subsoil—requires fiber optic cables that possess unyielding tensile strength, crush resistance, and exceptional resistance to rodent attacks and water ingress. Concurrently, regional intercity fiber links connecting Coimbra to the Lisbon-Porto industrial corridor traverse diverse terrain, including humid river basins along the Mondego valley and high-vibration railway rights-of-way.
To satisfy these localized operational challenges, Dongguan XT Cabled Co., Ltd. supplies advanced Armored Fiber Optic Cables designed specifically for direct burial, micro-trenching, aerial figure-8 installations, and duct networks across Coimbra. Engineered to surpass ITU-T G.652.D and EN 50575 CPR standards, our metallic and non-metallic armored solutions ensure total signal integrity in harsh environment deployments.
Our heavy-duty metallic and lightweight non-metallic armored fiber cables serve critical infrastructural roles throughout Coimbra’s urban and industrial districts:
Combining high-purity silica glass cores with state-of-the-art metallic shielding and hydrostatic protection.
Longitudinally applied corrugated steel tape (PSP) or aluminum tape (APL) provides exceptional crush resistance (up to 3000N/100mm) and absolute protection against rodent bites and sharp stone pressure.
Specially formulated water-blocking compounds inside loose tubes combined with swellable water-proof tape prevent water ingress, guaranteeing core operational life exceeding 30 years.
Central strength members made of phosphated steel wire or non-metallic FRP (Fiber Reinforced Plastic) deliver extreme tensile load capability during long-distance winch pulling in underground ducts.
Understanding the exact physical and mechanical parameters is critical for network planning engineers and procurement directors in Coimbra. Below is the comparative specification benchmark for our primary export series:
| Cable Type | Armoring Structure | Core Range | Tensile Load (Long/Short Term) | Crush Resistance (Long/Short Term) | Primary Application |
|---|---|---|---|---|---|
| GYXTW | Central Loose Tube + Corrugated Steel Tape + 2 Parallel Steel Wires | 2 - 24 Cores | 600N / 1500N | 1000N / 3000N | Duct / Aerial / Micro-Trench |
| GYTA53 | Stranded Loose Tube + Aluminum Tape + Steel Tape (Double Sheath) | 2 - 288 Cores | 1000N / 3000N | 1000N / 3000N | Direct Burial / Wet Underground |
| GYTY53 | Stranded Loose Tube + PE Inner Sheath + Corrugated Steel Tape Armor | 4 - 144 Cores | 1000N / 3000N | 1000N / 3000N | Direct Burial (Rodent Heavy Zones) |
| GYTC8S | Figure-8 Self-Supporting + Corrugated Steel Tape + Integrated Messenger Wire | 2 - 144 Cores | 1500N / 4000N | 1000N / 3000N | Self-Supporting Aerial Lines |
| GYFTY | All-Dielectric Non-Metallic FRP + Stranded Loose Tube (Non-Armored) | 4 - 288 Cores | 600N / 1500N | 300N / 1000N | High-Voltage Power Lines / Duct |
From non-metallic dielectric designs to 8K HDMI armored jumpers for broadcast & data centers.
Dongguan XT Cabled Co., Ltd. is a professional manufacturer specializing in fiber optic cables and optical connectivity solutions for industrial, telecommunications, and data center applications. Established in 2012, the company is located in Dongguan, Guangdong Province, one of China's leading manufacturing hubs. With a production facility covering over 12,000 square meters and a team of more than 180 employees, XT Cabled is committed to delivering reliable, high-performance fiber optic products to customers worldwide.
The company's product portfolio includes single-mode fiber optic cables, multi-mode fiber optic cables, FTTH cables, armored fiber optic cables, outdoor fiber cables, indoor fiber cables, data center cabling solutions, industrial optical cables, and customized optical connectivity products. These solutions are widely used in telecommunications networks, broadband infrastructure, smart buildings, industrial automation systems, cloud computing facilities, and large-scale data centers.
XT Cabled operates advanced production lines and testing laboratories equipped with modern inspection instruments to ensure product consistency and compliance with international quality standards. The company follows strict quality management procedures throughout material sourcing, manufacturing, testing, and delivery processes. Its products are manufactured in accordance with recognized industry standards and are supplied to customers across North America, Europe, Southeast Asia, the Middle East, and other global markets.
In addition to standard products, XT Cabled provides OEM and ODM manufacturing services, supporting customers with customized cable structures, specifications, packaging, and branding requirements. Through continuous investment in technology, manufacturing efficiency, and customer service, Dongguan XT Cabled Co., Ltd. strives to be a trusted partner for global optical communication and network infrastructure projects.
Our production environment is optimized for high-capacity output and rigorous quality assurance. Below are glimpses into our Dongguan manufacturing facilities:
Exporting optical cables to Portugal and the broader European Union requires strict compliance with environmental and fire safety regulations. XT Cabled manufactures all fiber optic products in full compliance with European norms:
XT Cabled offers streamlined supply chain solutions directly to installation contractors and telecom operators in Coimbra. By routing shipments through major Portuguese maritime hubs such as the Port of Leixões (Porto) or Port of Lisbon, backed by swift inland bonded trucking to Coimbra, we ensure delivery lead times remain tight and predictable.
Explore our full line of loose-tube, double-sheath, figure-8, and multi-core fiber cables available for Coimbra exporters and contractors.
Expert responses regarding technical selection, environmental suitability, OEM customization, and import logistics.
Both GYTA53 and GYTY53 are double-jacketed cables optimized for direct burial. GYTA53 utilizes an inner layer of Aluminum Tape (APL) combined with an outer Corrugated Steel Tape (PSP), providing dual moisture barrier protection and high flexibility. GYTY53 uses a heavy steel tape armor beneath a durable PE sheath, making it exceptionally resistant to severe rodent attacks and high static soil loading commonly encountered near river valleys and industrial subsoils.
Yes. For indoor and universal deployment across public buildings and research centers in Coimbra, we produce LSZH (Low Smoke Zero Halogen) jacketed variants fully compliant with CPR EN 50575 standardizing Euroclasses Cca and B2ca, preventing hazardous halogen smoke emissions during fire events.
Absolutely. We offer complete OEM/ODM solutions, enabling customized fiber strand counts (1 to 288 cores), tailored outer sheath color coding, custom meter printing, specific reel lengths (2km, 4km, 6km per wooden drum), and private label logo packaging.
Standard manufacturing lead time is 7–14 days depending on order volume. Sea freight transit from Shenzhen/Guangzhou ports to Leixões or Lisbon ports takes approximately 24–30 days, followed by 1–2 days inland trucking to Coimbra. Express air freight for urgent project patches takes 5–7 business days.
Contact our senior optical cable engineers for factory-direct quotes, technical compliance drawings, and free sample reels.
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