In fiber optic communication networks, metro and access networks are key parts with unique transmission roles. Metro networks provide urban backbone transmission, while access networks deliver the critical last mile link to end users.
With distinct application requirements, the fiber optic cables adopted for each network differ greatly in design. Below, let's overview common fiber optic cable for Metro & access networks to help professionals make accurate selections and efficient deployments.
The transmission distances of Metro networks usually range from tens to hundreds of kilometers. Meanwhile, Metro networks carry large amounts of data traffic, and also installed in various harsh outdoor environments, including duct, direct buried and aerial installation.
For above reasons, fiber optic cables for Metro networks must meet strict standards, such as great mechanical strength, good moisture resistance and strong anti-interference performance. Below are the most common fiber optic cable for metro network applications. Each fiber optic cable is designed for special performance needs and different working scenarios.
ADSS cables are widely used for aerial backbone transmission in metro networks. With excellent insulation properties and strong resistance to electromagnetic interference, they can be installed on the same utility poles as high-voltage power lines. Consequently, ADSS cables are an ideal solution for routes alongside existing power lines. They make full use of existing power pole infrastructure, effectively shortening construction periods and lowering overall project costs.
As a professional manufacturer of ADSS fiber optic cables, UnitekFiber offers a diverse and comprehensive range of product options. For applications requiring pole spans of 50 to 200 meters, we provide single jacket ADSS cables. For longer pole spans, we also offer double jacket ADSS cables to meet the specific requirements.
GYTA fiber optic cables is one of the most commonly deployed optical cables for urban main communication lines. GYTA fiber optic cables feature a stranded structure with aluminum armored tape. UnitekFiber offers customized fiber counts from 2 to 288cores. GYTA fiber optic cables deliver excellent moisture resistance. GYTA fiber optic cables are lightweight for easy transportation and installation, and adapt well to various construction conditions. Widely used in metro network backbone and aggregation layer transmission, they are mainly installed via duct and aerial laying.
GYTS fiber optic cables also adopt a stranded lose tube structure. GYTS fiber optic cables are designed with steel tape armor, providing superior pressure resistance and impact resistance for enhanced protection. With a durable PE outer sheath, GYTS fiber optic cables are highly wear resistant. They can effectively withstand harsh outdoor environments and boast a long service life. GYTS fiber optic cables are mainly used for outdoor overhead in metro networks.
GYTA53 fiber optical cable have an additional layer of steel tape armored and outer PE sheath under GYTA fiber optic cable, creating a double armored, double jacket structure, providing waterproof, corrosion, anti-rodent and anti-crush. GYTA53 fiber optical cable boasts robust resistance to interference and physical damage, allowing for direct burial without the need for additional protective measures. It is primarily deployed in direct burial within Metro Networks, specifically for backbone lines in suburban areas, remote routes, and similar locations where cables must be buried directly underground.
OPGW cables integrate dual functions of optical fiber communication and power ground wire. Built with internal fiber units and high strength metal outer sheaths, they can replace conventional power ground wires to achieve integrated communication transmission and lightning protection.Mainly adopted for power communication trunk lines in metro networks, OPGW cables are installed overhead on high-voltage power poles, supporting integrated deployment of power and communication systems. They satisfy lightning protection and grounding requirements of power lines while enabling stable backbone communication transmission. OPGW cables save line resources and construction costs with strong anti-interference and lightning resistance performance.
Access network serves as the core of last mile connectivity, covering buildings, residential areas and home users. It requires compact size, easy branching, simple installation and cost efficiency rather than long distance transmission performance. Below are widely used fiber optical cables for FTTH and diverse access network.
GYXTW fiber optic cable features a central loose tube structure, resulting in a small diameter, light weight, and compact design. It typically contains 2 to 24 fiber cores, facilitating branching and installation. Primarily used for short distance transmission within the access layer, GYXTW fiber optic cable is commonly deployed in residential community fiber optic access networks, undertaking short distance distribution connections between buildings. Given its excellent performance, GYXTW fiber optic cable is highly suitable for outdoor aerial installations and is one of the most widely used fiber optic cables in residential access networks.
GJXFH & GJXH fiber optic drop cables feature flat type, compact size, light weight and excellent flexibility with high bending performance. Designed with single or dual fiber cores and fire-resistant LSZH outer sheath, GJXFH & GJXH fiber optic drop cables are ideal for indoor wall and pipeline installation. Specially developed for FTTH applications, fiber optic drop cables are mainly used for indoor home cabling from building distribution boxes to residential users, as well as short distance indoor connections. FTTH fiber optic drop cable can easily pass through walls, gaps and cable ducts with little construction damage, delivering easy installation, high construction efficiency and cost effectiveness.
Indoor/Outdoor fiber optic drop cable features with compact, lightweight, and facilitates easy fiber splicing. UnitekFiber’s Indoor/Outdoor fiber optic drop cable use high quality G.657 bend insensitive fiber, UL listed OFNR, OFNP, LSZH jackets and strong strength aramid yarn, ensuring excellent tensile, crush resistance performance for long time using. We provide tight-buffered 900um, loose tube 250um, toneable and Non-toneable fiber optic drop cables. It is widely deployed in residential equipment rooms, building low voltage shafts, and horizontal floor cabling links, enabling seamless connectivity from fiber termination boxes to indoor data centers while ensuring stable and reliable communication transmission.
Metro Network's fiber optic cables are designed for stable long distance transmission, fitting complex outdoor installations including aerial, direct-buried and pipeline laying. Typical fiber optic cable include GYTA, GYTS, GYTA53, GYTS53, ADSS and OPGW.
And, access network’s fiber optic cables feature compact size, easy deployment and cost efficiency, such as GYXTW, GJXFH, GJXH and GJFJV with convenient splicing. Proper fiber optic cable selection ensures stable network operation, lowers construction and maintenance costs, and improves deployment efficiency.
As a professional optical cable manufacturer, UnitekFiber provides a full product range covering all scenarios of metro backbone transmission and last mile access cabling, fully supporting global communication network construction. If you have any requires of fiber optic cable, please feel free to contact us via sales@unitekfiber.com.
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