Fang Chen pressed down with his hands several times, and then suppressed the eager applause.

Looking around, seeing the eyes of this pair of eyes staring at him, Fang Chen couldn't help but slightly curl the corners of his mouth, and said slowly with a smile: "First of all, I would like to thank all the communicators here, whether you are business leaders, or experts and professors of the academy and research institutes, the promotion of the Huaxia communication industry, the birth of the 04 machine is inseparable from your hard work, it is you who have created the current Huaxia communication industry, 04 machine, brick by brick." ”

Hearing this, everyone couldn't help but move slightly, and their hearts couldn't help but feel a little proud and proud, and even looking at Fang Chen felt a lot more pleasing to the eye.

Even Wu Jiangxing nodded slightly, although the industry has always praised him, saying that he has advanced the technical level of the Huaxia communication industry for nearly 30 years in one fell swoop.

But in fact, he knows very well that the reason why he can make such outstanding achievements as 04 machine is also stepping on the shoulders of his predecessors step by step, if there are not so many teachers to build ladders for him, preaching and solving doubts, he will never be able to take off the crown of large-scale local CNC 10,000-door program-controlled machine!

After all, he didn't jump out of the cracks in the stones, and most of the knowledge he had was obtained from the teacher, and what he studied by himself was just a little bit, a little bit.

He turned his head and noticed the pride and pride on the faces of the people around him, and suddenly realized that Fang Chen didn't thank the leader first, but what did he mean by saying these words first.

This is clearly to win the hearts of all the correspondents in the country.

And why win people's hearts?

Wu Jiangxing's complexion changed suddenly, this was clearly a harbinger of the inclusion of Li Yiyuan, Yu Dahu and others, and even a foreshadowing!

At this time, Wu Jiangxing looked at Fang Chen, Li Yiyuan and the others, just like looking at a pile of dry firewood, which was about to explode, eyebrows and eyebrows, and secretly hooked up with a dog man and woman.

Fang Chen didn't notice Wu Jiangxing's eyes, after all, he didn't have clairvoyance, so it was impossible to clearly recognize Wu Jiangxing's expression among the tens of thousands of people, and he didn't even know that Wu Jiangxing was sitting there.

For him, after the acquisition of Luozhou Telephone Factory, Wu Jiangxing is a thing of the past for him.

"Next, I would like to thank all the employees of Qingtian Communications, without their hard work and efforts, without their blood and sweat, there would be no strong fruit of today's 04 machine, there is no doubt that today's glory and praise belong to them!"

Fang Chen's voice became louder and louder, and finally it was almost a hoarse scream, high-pitched and loud, the green tendons on his neck burst out, and his fist struggled to swing towards the sky!

In the next moment, a burst of thunderous applause sounded again, and the mood of the people who had just calmed down in Qingtian Communication also boiled again, for them, with Fang Chen's words, their previous efforts and hard work were not in vain.

Fang Chen didn't stop this time, but looked at everyone with a smile, in his opinion, these applause were given to them by everyone, and they deserved such applause.

After dozens of breaths, seeing that the applause was almost over, Fang Chen said with a smile: "The thanks have been completed, and then let's talk about a little business, but the biggest thing today is that the Qingtian Communication 04 machine has passed the verification of the Ministry of Posts and Telecommunications and obtained the network access license, but I don't want to talk about how good the 04 machine is, how good it is, after all, so many leaders in front have talked a lot in this regard, to be honest, I feel blushing when I praise myself." ”

As he spoke, Fang Chen pointed, and everyone on the rostrum had a mocking and ridiculous look on their faces.

Su Shuang's face turned white in an instant, he really didn't expect that when he was sitting on the rostrum, in front of the public, Fang Chen would dare to be so open-mouthed.

However, before, including him, they did not praise the 04 machine less, and this is already considered to be a small talk, with their level of speech skills, everyone is not a problem to speak for three or four hours.

Hearing this, everyone laughed in an uproar, and somehow, suddenly became interested in what Fang Chen was going to talk about next, or in the way Fang Chen spoke.

Even the reporters in the audience, who don't know how many grand ceremonies and leaders' speeches have witnessed, were stunned.

Fang Chen's eloquent, relaxed and casual attitude, they had never seen it before.

In these years, anyone who can take off the script and not read according to the manuscript given by the secretary is already very good, the dragon and phoenix among the people, and the existence of literary connotation, not to mention Fang Chen's unscrupulous now, completely a picture of my territory, I am in charge, and I can say whatever I want.

They couldn't help but look at each other, and suddenly they had the feeling that they were watching some talk shows in Xiangjiang, that is, the feeling that the host and the guests were sitting opposite each other and chatting casually.

Some people even feel extremely regretful, if they knew that Fang Chen was like this, they should have applied for it and found a host to give Fang Chen a ride, in this case, maybe the effect would be better.

The corners of Wang Taobo's mouth showed a hint of schadenfreude, secretly glad that he resisted Fang Chen's invitation and did not speak on stage, otherwise he would be one of the people Fang Chen ridiculed.

"Since I don't talk about how good the 04 machine is, I want to talk about what kind of changes will be made to the Huaxia communications industry and even the whole China after the emergence of the 04 machine. Fang Chen's expression suddenly became extremely serious.

"I am afraid that you don't know, on the basis of Professor Wu's research on the 04 machine, Qingtian Communication has made a little change, so that the 04 machine can support optical fiber transmission, instead of traditional cables, presumably everyone knows the advantages and disadvantages between cables and optical fibers, especially when contacting remote equipment. ”

Speaking of this, Fang Chen's eyes scanned the audience, but he still didn't see Wu Jiangxing, so he had to say with some regret: "I didn't find Professor Wu, but it's not important, it's not important!"

Wu Jiangxing, who was suddenly cued by Fang Chen, almost flashed to his waist, suddenly heard Fang Chen say that he was not important, and his face suddenly turned dark red, like a piece of pork liver that was about to be spoiled.

At that point just now, Fang Chen mentioned in public that it was his joy of researching the 04 machine, and he disappeared without a trace in an instant.

He still vaguely felt that he was living the belly of a gentleman with the heart of a villain, and even felt that he didn't mention whether Qingtian Communications was too petty when he held the R&D report meeting before.

But now, he didn't think so at all, and even he felt that why Fang Chen mentioned him before was just for the latter sentence, he didn't matter.

Some communication experts and scholars next to him didn't bother to pay attention to Wu Jiangxing's face, but directly fell into the shock of Fang Chen's change of communication connection from traditional cable to optical fiber.

Cables have appeared for a long time, it can be said that since humans can use electric energy, cables have appeared, and the previous switch has been upgraded for several generations, from the earliest magnet switch, vertical and horizontal switch, to the air separation switch, and the latest program-controlled switch, it can be said that the switch is developing at a rapid pace, but the connection between each other is still cable.

Compared with optical fiber, the price of cables is cheap, large-scale, and high-reliability, but as Fang Chen said, once it involves connecting remote equipment, because of resistance, there will be disadvantages such as rapid signal weakening and high maintenance technical requirements.

Compared with copper media such as cables, optical fibers have greatly improved in terms of safety, reliability and transmission performance.

In addition, the bandwidth of optical fiber transmission greatly exceeds that of copper cables, and the maximum connection distance it supports is more than two kilometers, and it also has the advantages of good anti-electromagnetic interference, strong confidentiality, fast speed, and large transmission capacity.

The only drawback is that some are too expensive and not suitable, so they have not been popularized all over the world, even if Lucent, Ericsson, Fujitsu and other international communication equipment companies still use cables, not optical fibers.

"I think it's feasible to swap cables with fiber. Li Yinan suddenly said to Ren Zhengfei very seriously.

Hearing this, Ren Zhengfei was stunned for a moment, but seeing that Li Yinan was not joking, he couldn't help but look at Fang Chen on the stage again, and then said slowly: "Then when you go back tomorrow, you will start to carry out experiments on optical fibers to see if the Qianmen machine can use optical fiber to transmit." ”

As far as he is concerned, since Fang Chen said so, and Li Yinan, the number one technical general under him, thinks so, especially the former, he really knows Fang Chen very well now, and knows that Fang Chen will never be untargeted, let alone make a big statement in public.

So the possibility of fiber optic replacing cables is more than 90%, and it's definitely worth a try.

I saw the shocked, surprised, and questioning faces below.

Although in later generations, optical fiber has indeed replaced cables, but its practical optical fiber to replace cables is not his idea, but Zheng Baoyong's idea.

As a bachelor's and master's degree in laser at Huazhong Institute of Technology, and a doctor majoring in optical communication, the idea of using optical fiber instead of cable as a switch connection material has long existed in Zheng Baoyong's head.

All Fang Chen could do was to agree and support Zheng Baoyong when he reported this idea to him.

After all, he knows very well how optical fiber replaces cables, and he also knows that in his previous life, since 1993 or 1994, Huawei began to use optical fiber under the guidance of Zheng Baoyong and Li Yinan, two chief engineers who graduated from laser majors.

And besides, the benefits of using optical fiber are indeed here, and the conditions are also held.

For the general public, it was around 2010, when the broadband rose from 2M4M to more than 50M, that they slowly became familiar with optical fiber and optical modem, but in the scientific community, optical fiber is a thing that has been invented a long time ago.

In 1870, the British physicist Tyndall went to the lecture hall of the Royal Society to give a lecture on the principle of total reflection of light, and discovered that light can bend and turn along a glass rod.

According to this principle, people later created a glass filament with high transparency and thickness like spider silk, which is as thick as spider fiber, and when the light hits the glass fiber at a suitable angle, the light advances along the curved glass fiber. Because of its ability to transmit light, it is called an optical fiber.

In 1976, the Bell Institute built the first optical fiber communication experimental system in Atlanta, using a fiber optic cable containing 144 optical fibers manufactured by the Western Electric Company. In 1980, commercial fiber optic cables made of multimode fiber began to be used on inter-local trunks and a few long-distance lines in the city. Commercial fiber optic cables made of single-mode fiber began to be used on long-distance lines in 1983. In 1988, the first transatlantic submarine cable connecting the United States with Britain and France was successfully laid, and soon the first transatlantic submarine cable was built.

In 1977, the first quartz optical fiber was developed, and in 1978, it developed its own communication optical cable, which used multi-mode optical fiber, and the core structure of the cable was stranded, and it had carried out field tests in Shencheng, Yanjing, Jiangcheng and other places, and soon after it was tried as an inter-office trunk in the city's telephone network.

Therefore, in terms of optical fiber technology, Huaxia is completely qualified, even excellent, not inferior to the world-class level.

The reason why optical fiber has not been able to replace the cable is because the cost is too expensive, and it is just a phone call, and the electrical signal transmission of the cable is completely enough.

However, once the communication equipment needs to be connected to the remote end, or to put it more clearly, when it is necessary to connect the branches in the vast land of China, scattered like stars, the disadvantages of high cable loss rate and high maintenance cost will be revealed.

If you use cables, a thick cable can be stretched for tens of kilometers to meet the needs of a village for communication use.

But you must know that only a few households in a village can afford to use a telephone, but if the cable is pulled a little thinner, the cost will not be reduced at all.

If the cable is not strong enough, the signal will not be able to be transmitted under the long journey due to the resistance, so no matter how it is calculated, the post and telecommunications bureau will not be able to recover the cost at all.

In addition, in many rural areas, there are still very scattered households.

For example, this is the case in Luozhou, the Song County under its jurisdiction is located at the northern foot of Funiu Mountain and its branches, between the Outer Mountain and the Bear's Ear Mountain, and is named because it is located in the beginning of the Song Mountain.

Basically, a hill is a small natural village, and this natural village, usually with one or twenty households, is already a large village, and it is absolutely not uncommon for a village composed of as few as three or five households.

In this case, it is certainly not possible to use the cable.

And some people in the audience have already figured out some flavor from the last sentence Fang Chen just said, connecting to remote devices.

"Brother Li, did you put forward the plan to connect villages and villages in the previous paragraph?" Yu Dahu's eyes lit up, and Li Yiyuan, who also had a happy look on his face, couldn't hide it.

The soul that was almost poked by Yu Dahu was scattered, Li Yiyuan glanced at Yu Dahu, and then said happily: "This party always has a big appetite!"