FTTD – Fiber To The Desktop, Advantages and Applications

September 8, 2021

The application of optical fiber is gradually extending from the backbone or computer room to desktop and residential users, the FTTD (fiber to the desktop), which means that more and more users who do not understand the characteristics of optical fiber are beginning to come into contact with optical fiber systems.

What are the significance of Fiber To The Desktop and what factors should be paid attention to in FTTD system design?


The relationship between “fiber to desktop” and copper cable is complementary and indispensable in the application of horizontal subsystem. Optical fiber has its unique advantages, such as long transmission distance, stable transmission, free from electromagnetic interference, high support bandwidth and no electromagnetic leakage.


These characteristics make fiber optic cable play an irreplaceable role of over copper cable in some specific environments:


When the transmission distance of information points is greater than 100 meter, if copper cable is selected, it is necessary to add repeaters or increase network equipment and weak current rooms, thereby increasing costs and hidden troubles. The use of fiber optic cable can easily solve this problem.

Electromagnetic Interference

There are a large number of electromagnetic interference sources in specific working environment (such as factory, hospital, air conditioning room, power room, etc.), and optical fiber can operate stably in these environments without electromagnetic interference.

Confidential Information

There is no electromagnetic leakage in the optical fiber FTTD system, so it is very difficult to detect the signal transmitted in the optical fiber. It is a good choice in places with high confidentiality requirements (such as military, R & D, audit, government and other industries).


In the environment with high demand for bandwidth, optical fiber is a good choice when it reaches more than 1G.


Optical fiber is getting closer to user terminals. Therefore, when designing the communication system and selecting products, we should fully consider the current and future application requirements of the system, use compatible systems and products, facilitate maintenance and management as much as possible, and adapt to the ever-changing actual situation on the site and user installation requirements.

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Tony Lau is technical manager and co-founder at HOC. He loves writing about content optical fiber communications, specializes in fiber optic cables, FTTH turnkey solutions, ADSS cable, and ODN networks.

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