Application of pigtails in FTTH (1)

Preface

With the business development of the three major carriers in China, fierce and brutal market competition, broadband services have become the main battlefield for various operators to compete for. The huge demand in the Chinese market makes every operator unable to neglect, we are constantly accelerating the construction of Fiber-to-home delivery through technological innovation and lower costs.

This year, the State has introduced a three-in-one policy. The EPON technology has been widely recognized in the fiber-to-household model. The construction of optical networks in all large and medium-sized cities must be implemented using the EPON technology. At present, there are many FTTB methods used by domestic carriers. The majority of terminals are connected to ADSL using copper cables. the broadband speed is limited by the transmission distance of copper cables and cannot reach the ideal Internet access speed.

China Telecom fiber-to-home project construction and acceptance code interim) in application scenarios, terminal laying is particularly prominent in the use of leather lines and optical cables, in line with technical indicators, quality and other requirements, it effectively improves the Design and Construction Quality efficiency and ensures the stable and reliable use of the network. However, at present, all carriers have pre-deployed trunk cable. The use of trunk cable mainly belongs to the following four categories:

L-type fast connection

Quick connection plug

Cold connection

Connect the leather cable to pigtails or 86 panel.

From the current construction cost and efficiency, there are many unsatisfactory factors.

At present, there is a recommended method: pigtails can solve many problems, such as high material costs, slow engineering efficiency, unstable product performance, unreliable quality, and no budget for post-maintenance costs.

Pigtails

Overview:

After the development of technologies in the optical communication industry and the promotion of related technologies in recent years, FTTH optical fiber to the household has become the final solution for the development of optical fiber access networks. It not only meets the development requirements of optical technology in the optical field, it also meets the high-speed and large-capacity transmission requirements of users for optical network signals. In the FTTH Access Project, the mechanical bending and tensile properties of conventional indoor optical fiber cables cannot meet the requirements of FTTH optical fiber cables to households. Due to market demand, low bending radius and high strength leather cable will be widely used in FTTH optical fiber access networks.

Pigtail cable types:

Connector structure for pigtails:

Features:

◆ In-plant production, good stability and good face physics.

◆ Small bending radius, good tensile, anti-disturbance, and anti-lateral pressure performance.

◆ Easy to open and strip, easy to lay, easy to put in pipe.

◆ Small optical fiber diameter, light weight, used in indoor appearance.

◆ The pipe leather cable contains water resistance materials, which can reduce rain erosion.

◆ It can be matched with multiple on-site connectors, and the on-site construction time is short.

◆ Unique connector structure, professional production.

◆ After laying, the construction quality of the leather line can be measured on site.

◆ It is used on the user end and is easy to use for appearance, durability, and maintenance.

Technical Features:

◆ Insertion loss: ≤ 0.db

◆ Return loss: ≥50db (APC ≥60db)

◆ Optical Fiber Type: G.657 fiber 9/125um

◆ Optical Cable tensile strength: 50N

◆ Optical Cable Size: 3.1mm × 2.0mm (indoor leather); 5.1mm × 2.0mm (outdoor leather );

Pipe cord size: 8mm internal cord size 3.1mm × 2.0mm

◆ Operating temperature:-25 ℃ ~ + 70 ℃