Shulou(Shulou.com)06/02 Report--

This article is reproduced from the official account "net excellent mercenary" (ID: hr_opt) on Wechat. Author: Zhuang Jiasheng.

You must not want to go out on such a hot day, blowing the air conditioner on the Internet at home, watching the high-definition IPTV and brushing the moments, but do you know how the fiber optic broadband gets to your home?

It is not easy for a thin optical fiber to enter the homes of ordinary people.

Fiber-to-home is called FTTH (Fiber To The Home), which refers to the ONU that connects the fiber to the user's home directly from the operator's OLT room.

The network between OLT computer room and ONU is called ODN (Optical Distribution Network) optical distribution network, which is composed of optical junction box, optical junction box, optical distribution box, optical cable and other equipment, providing transmission channels between OLT and ONU.

In ODN, optical cable is the lowest infrastructure of optical signal transmission, which is divided into backbone optical cable, distribution optical cable and home optical cable.

Backbone optical cable

Backbone optical cable: that is, the feeder optical cable, which refers to the section of optical cable between the end office and the optical junction box, generally using a general outdoor type of optical cable, the number of backbone optical cable cores will be more, as little as hundreds of cores, as many as hundreds of cores, or even thousands of cores.

The laying of backbone optical cable usually includes pipeline, direct burying and overhead.

Distribution fiber optic cable

Distribution optical cable: refers to the section of optical cable from the optical junction box to the optical distribution box, generally using a general outdoor type of optical cable.

The construction mode of distribution optical cable refers to the backbone optical cable. Between the buildings in the city, we can often see neatly and firmly distributed optical cables tied up along the existing pipes or outer walls.

Home optical cable

Home optical cable: it is a leather cable, which refers to a single-core or multi-core cable connected to the user's home.

Generally, butterfly-shaped optical cable is used for FTTH home optical cable, which usually has good bending performance, anti-lateral pressure, anti-distortion, simple structure, convenient stripping, and on-site end-to-end optical fiber termination function, which is also convenient for laying shafts, hidden pipes, open pipes, wire slots or indoor nailing methods in indoor environment to enhance users' satisfaction with the construction.

No matter which section of optical cable, communicators must follow strict acceptance standards during construction in order to ensure the quality of the project and provide users with higher quality service.

In ODN, optical cable connects OLT, optical junction box, optical junction box, optical distribution box and other equipment, and finally sends the optical signal to your home through various steps such as fiber separation, jumper, pick-up, testing and so on.

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The optical fiber has finally arrived at your house.

But it is not over yet, and then the broadband installation and maintenance engineers will have to complete the optical fiber connection pairs to connect your optical cat and open the client.

The general operation procedure is as follows:

Now, connect the light cat to your WiFi router and you can surf the Internet.

After long-distance transmission and forwarding by various devices, the optical fiber finally arrived at your home.

It is not easy for optical fiber to get home, but what is even more difficult is the group of communicators who build and maintain optical fiber networks.

As we know above, the ODN network is mainly distributed outdoors, and the communicators who build and maintain the ODN network have to travel to the wild for a long time. Regardless of the wind, sun, wind and rain, they must stick to the front line and protect thousands of families on the Internet.

It is hot summer, when you turn on the air conditioner while surfing the Internet at home, it is this group of people, under the scorching sun, to prop up a perfect summer for you.

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So, if you can't get on the Internet, or the speed of the network is slow, please don't worry, don't get angry, and don't complain. They will certainly take care of it for you. They are on their way. They must be busy. If you hurry, they are also in a hurry. I hope you will understand that they are working really hard.

This summer, thanks to the air conditioner, thanks to WiFi, but also to this group of people who silently support the high-speed Internet!

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