Zyqora
In modern telecommunications, the optical network's physical layer forms the foundation of all global data exchange. The Dome Fiber Closure (also known as the vertical fiber optic joint box or vertical splice closure) acts as the critical barrier protecting delicate glass fibers from environmental threats. In aerial, underground, and direct-buried environments, maintaining optical integrity is vital to prevent signal loss and system downtime.
Driven by the worldwide expansion of 5G networks, FTTx (Fiber to the X), and hyperscale data center interconnections (DCI), optical cables are pushing further into extreme climates. The necessity for high-density, reliable, and easily deployable dome closures has grown significantly. In regions like North America, Europe, and Southeast Asia, telecommunication operators are upgrading legacy copper networks to optical fiber. This transition requires weather-resistant splicing nodes that can support hundreds of fiber splices in a compact, durable structure.
High-capacity networks require robust protective housing. Choosing industrial-grade Dome Fiber Closures prevents signal loss from moisture entry, freeze-thaw cycles, and mechanical stress.
As a specialized supplier of optical connectivity, Zyqora understands that the performance of high-speed transceivers (such as SFP, SFP+, and QSFP28 modules) depends heavily on the quality of the optical path. High-speed transceivers are sensitive to attenuation variations. Even minor signal loss caused by moisture or fiber bending inside a low-quality splice enclosure can degrade data transmission rates and increase bit error rates (BER).
Our engineering team focuses on matching high-performance transceivers with optimized fiber routing and splicing environments. By optimizing the bend radius, tray structure, and environmental sealing of the splice enclosures, Zyqora ensures that the optical path remains clear. This provides stable performance from the network core to the final subscriber drop line.
Our dome closures are designed to handle dense cable structures, ribbon cables, and traditional loose-tube configurations. This flexibility makes them a key component for telecommunication operations, industrial networks, and large-scale smart city deployments globally.
Our Dome Fiber Closures are manufactured from high-impact polypropylene (PP) modified with UV-resistant stabilizers, ensuring durability in temperature ranges from -40°C to +65°C.
Founded in 2016, Zyqora Optical Technologies Co., Ltd. is a manufacturer and supplier of optical transceivers and fiber connectivity solutions for data center, telecom, enterprise network, and cloud computing applications.
With a modern production facility covering 386 square meters, Zyqora specializes in the design, development, manufacturing, and testing of optical communication products, including SFP, SFP+, SFP28, QSFP28, QSFP-DD, OSFP, AOC, and DAC solutions. Our products are engineered to deliver reliable performance, scalability, and compatibility with mainstream networking platforms.
Quality is at the core of everything we do. Our manufacturing process is supported by comprehensive quality assurance procedures, including incoming material inspection, optical performance testing, aging tests, compatibility verification, and final product inspection. A dedicated team of 42 quality control professionals ensures that every product meets international standards and customer expectations.
As a company with both manufacturing and international trading capabilities, Zyqora has built a reliable supply network with more than 860 supply chain partners, enabling efficient sourcing, stable production, and flexible delivery schedules. Our primary customers include telecom operators, data center providers, system integrators, network equipment distributors, and enterprise IT solution providers worldwide. To support evolving market demands, we maintain a strong research and development team focused on innovation and product optimization. Zyqora offers comprehensive OEM and ODM services, including customized labeling, firmware coding, packaging design, and product specification development. Last year alone, the company successfully launched 168 new products to meet the growing requirements of next-generation network infrastructures.
Different network deployments present unique physical challenges. Our Dome Fiber Closures are designed to perform reliably in a range of environments.
Suspended on utility poles, aerial closures are subjected to high winds, solar radiation, ice loading, and temperature swings. Our dome closures are designed with UV-stable outer shells and mechanical mounting clamps. This ensures they resist cracking and maintain optical link stability under physical stress.
Underground environments are often damp and prone to flooding. In these settings, closures face pressure from standing water, chemical runoff, and biological activity. Zyqora's IP68 mechanical seal closures protect internal splices from moisture intrusion and silt buildup under pressure.
When buried directly in soil, dome closures must withstand heavy soil pressure, rock shifting, and root intrusion. The impact-resistant ribbed outer shell of our vertical splice closures prevents structural collapse and keeps the internal fibers safe from mechanical stress.
In FTTH deployments, technicians regularly open enclosures to add new drops. Our mechanical dome closures feature accessible latching mechanisms and dedicated drop cable ports. This allows technicians to perform clean routing and routing modifications without disrupting active lines.
At Zyqora, our engineering team continuously designs products for the next generation of high-density networks.