Single-mode four-core fiber optic quota

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Single-mode 4-core fiber optic cables are widely available for FTTH, GPON, and long-distance telecommunications, with bulk purchasing options for project-based quotas.

Overview

A 4-core single-mode fiber optic cable consists of four individual optical fibers designed for high-speed, long-distance data transmission. These cables are ideal for connecting end-users to FTTH (Fiber to the Home) or GPON networks and are commonly used in telecommunications, internet, and cable TV applications . Single-mode fibers have a very thin core (approximately 8–10 microns), allowing light to travel directly with minimal signal loss, making them suitable for distances exceeding 100 km .

Construction and Features

Typical 4-core single-mode cables include:

PE or PVC outer sheath for environmental protection
Multi-strand aramid yarn for tensile strength
PBT loose tubes with jelly compound to protect fibers
Optical fibers for data transmission Some cables also feature armored designs for outdoor durability and come with flexible sheathing materials like LSZH, OFNR, or OFNP depending on installation requirements . The outer diameter is usually around 5.8 mm, with additional layers of Fiber Reinforced Plastic (FRP) and yarn for mechanical strength .

Testing and Quality Assurance

Manufacturers perform rigorous testing to ensure reliability:

Optical Time Domain Reflectometer (OTDR) tests for splice loss, length, and fault detection
Wavelength testing at 1310, 1550, and 1625 nm
Compliance with ISO9001:2015 and European quality standards These tests ensure that each cable meets high-performance standards for signal integrity and durability.

Quota and Procurement

While specific quotas depend on suppliers and project requirements, bulk purchasing options are available for quantities exceeding 1,000 units, suitable for large-scale deployments . Suppliers like Fiber4u, Jera Line, and Eland Cables offer project-based pricing and worldwide delivery, allowing organizations to secure the required number of cables for their infrastructure projects . For precise quotas, it is recommended to contact suppliers directly to confirm availability and lead times.

Applications

FTTH and GPON networks for residential and commercial connections
Telecommunications and internet backbone for long-distance data transmission
Cable TV and enterprise networks requiring high-speed, low-loss connectivity These cables are engineered to provide high data speed, low insertion loss, and long-term reliability, making them a core component of modern communication networks .

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