The most reassuring thing for users is that the networking with SDH optical transmission equipment can make the network have powerful self-healing and reorganization functions. This means that if one fiber is interrupted, or if a transmitter or receiver unit fails, the system can self-hop to the backup system or detour to other fiber systems. Roundabouts are not possessed by PDH, which gives it a strong ability to conduct information itself.

In addition, because the SDH frame structure arranges 5% of the overhead bits of the signal, its network management function is particularly powerful, and it can form a unified network management system. It plays a positive role in the automation, intelligence, channel utilization, and reduction of network maintenance costs and survivability.

If Huaxia wants to build an information superhighway, it must use high-speed synchronous optical transmission (SDH) equipment and systems, and must adopt mature SDH technology. This involves the research and development of equipment, the purchase of patents, and the sharing of patents.

Although Feixun Group has developed rapidly in recent years, everyone's attention has paid more attention to the research and development of mobile communications and mobile phones, and the energy on optical transmission is relatively small, and there are not many patented technologies applied. After all, mobile devices and mobile phones are more profitable and have more users.

Now that we have finally grabbed the construction of the information superhighway from the hands of the Ministry of Posts and Telecommunications, we naturally have to adjust the focus of research and development, complete the construction of the information superhighway with quality and quantity, compete with the United States, set a model in the world, and strive for orders in this field for the future.

Some people will say that the Yankees have abundant technical reserves, many manufacturers of optical transmission equipment, and many manufacturers of optical cables, and they began to prepare for the information superhighway early, and no matter how hard China tries, it will be difficult to surpass them.

But Jiang Xinwei knew that this was not the case, because in his previous life, Huaxia had a nickname: infrastructure madness.

Half of the construction of a highway in Western European countries is three years, three years of preparation, another three years of construction, and the tenth year is possible to open to traffic, which is relatively fast, but in China three years have often begun to charge for passing vehicles.

Of course, the quality of China's highways may be average, not as good as in Western Europe, but at least they can produce benefits earlier than their reinvestment, besides, if the quality is not good, it can be improved and repaired, and it can be renovated again and again, right?

One of the most important reasons for Huaxia's rapid growth is that land is not allocated to private ownership. The speed of highway land acquisition is very fast, as long as a few nail households are done, the rest is not a problem. Moreover, Huaxia road repair can be done manually, mechanically, and manually and mechanically at the same time.

As long as the superiors do not obstruct it, the boss of the contracted construction site can also organize employees to work at night or all night, plus cut corners and use shoddy or other means, and the speed is absolutely beyond the reach of Western Europe and the United States.

If someone stares at the quality or something, and says that Huaxia can't do this or that, it's basically something that some unproductive guys say, sour. If you have the ability, you can let Western Europe and the United States try it so fast? We don't build three roads as long as they build one.

When it comes to the construction of the information superhighway, the speed of the Chinese army will be even faster. Why? Because the facilities of the information highway in the field are to lay optical cables, the procedure is basically as follows: After the project is determined, the relevant departments hold a mobilization meeting, and the contractor begins to survey and requisition the land, and then the manual and mechanical forces go into battle, and the speed of trenching is absolutely first-class.

Survey is not as troublesome as building highways or railways, as long as you roughly see whether it is suitable for fiber optic cable passing, and you can also be lazy: just go along the existing railway line, and ensure that you will not miss a major event.

After digging a trench more than one meter deep and about half a meter wide, the bottom of the trench is leveled, sand and gravel are laid, and then cement blocks are placed, and then a few or more than a dozen PVC pipes are laid, or several layers of cement pipes are placed, and then landfilled to restore the surface shape.

If it is excavated in winter, it is enough not to even alarm the owners of those fields, or to pay a little money for the compensation of the seedlings.

Long-distance multi-core optical cables are generally laid in this buried way, and there are basically no traces from the ground. It's relatively safe this way. If the overhead laying, not to mention the number of cores is too much, the cement poles, steel wires are high, but it is easy to be stolen by thieves, although the time is hung everywhere "the optical cable has no copper, it is useless to steal and cut", but the loss is still very large.

After doing this, the professional construction team began to enter the site, began to stuff one or several pipes into the optical cable, and fused the trays of fiber optic cables at intervals of several kilometers.

At this point, the construction of the information superhighway in the field is considered complete.

As long as the contractor is not too greedy and does not hand over these projects only to his acquaintances and friends, he can hire countless small contract foremen to work at the same time, and these works can be completed in a few months and at most half a year. If it is the United States and other developed countries, their land acquisition has just begun at this time, and no one knows that they will be able to acquire all the land in the Year of the Monkey.

When laying optical cables in the field, the optical transmission room can be built together, and a small computer room for dozens of kilometers is only needed in large and medium-sized cities, and the construction task is also not heavy. There are countless construction companies in Huaxia that are waiting to be fed, and as long as the contractor dares to pay for it, these construction companies can build the computer room for you 24 hours a day.

All that's left is to install the optical transmission equipment.

Many people may immediately shout: "Yes, won't Huaxia build an information superhighway that will be stuck here? Without high-speed synchronous optical transmission (SDH) equipment and systems, what kind of information superhighway is there?"

I'm sorry, but I can really say that. Without high rate, we can take low rate, without SDH, we can take PDH.

Isn't this a fake information superhighway?

Just like a highway, a twelve-lane highway is a highway, and a four-lane highway is a highway. As long as our optical transmission network can carry all the information that needs to be transmitted, isn't it?

You must know that in this era, the amount of information that can run on the optical transmission network is really not much, half of the information is still voice calls, although there is not much computer information, at this time most of the people in the morning are on the Internet to read the news, listen to songs or something, there is not much traffic at all, even if someone starts to play online games, but compared with the amount of information after the emergence of smart phones, it is not even a fraction. In the previous life, a smartphone generated more information than a factory with 1,000 people now.

This is the reason why Jiang Xinwei dared to propose to the relevant departments to build the Huaxia Information Highway before the high-speed synchronous optical transmission (SDH) equipment and system were developed: "Yankee, don't pretend to be forced. When you talk about the information superhighway so highly, you are actually just bluffing. If you dare to build, we will dare to build, and we will build much faster than you. ”

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