How is the model of optical cable identified? Ask god for help

How is the model of optical cable identified? Ask God for help. GY communication room (field) optical cable GS communication device optical cable GH communication submarine optical cable GT communication special optical cable GJ communication room (bureau) optical cable GW communication metal-free optical cable GR communication soft optical cable GM communication mobile optical cable Note: Between the first part and the second part: the code of reinforcement (reinforcement core) refers to the component used to enhance the tensile strength of optical cable in the sheath or embedded in the sheath: unsigned-metal reinforcement component; G- metal heavy-duty reinforcement F- nonmetal reinforcement; H- nonmetallic heavy-duty reinforcing members (such as GYTA: metal reinforcing core; Part II: Codes for filling structural features in cable cores and optical cables. The structural characteristics of optical cable should indicate the main types of cable core and the derivative structure of optical cable. When it is necessary to specify several structural features of the optical cable type, it can be represented by a combination code.

Model identification of optical cable The identification method of optical cable model;

1, type

This pattern consists of five parts, each part is represented by a code name, as shown in the figure below. Among them, structural features refer to the structural features derived from cable core structure and optical cable. Gy- optical cable outside the communication room (field).

2, strengthen the component code

Reinforcing member refers to the member that enlarges or embeds the sheath inside to enhance the tensile strength of optical cable. If there are both metal and nonmetal reinforcing members, they are only expressed as structural features of metal members.

Unsigned metal reinforcing member

F—— Non-metallic reinforcing member

3. Code of characteristics of optical cable core and optical cable derivative structure

The structural characteristics of optical cable should indicate the main types of cable core and the derivative structure of optical cable. When it is necessary to pay attention to several structural features of optical cable types, it can be expressed by combination codes, which are arranged in the following order from top to bottom.

D- fiber ribbon structure S- fiber loose sleeve structure

J-optical fiber tight cover structure (unsigned)-stranded structure

X-type cable center tube (covering) structure T-type filling structure

C- self-supporting structure E- ellipse

Z- flame retardant structure

4. Sheath code

Y-type polyethylene sheath V-type PVC sheath

A- aluminum-polyethylene adhesive sheath (A sheath for short) S- steel-polyethylene adhesive sheath (S sheath for short).

Steel wire W- steel-polyethylene bonded sheath (W sheath for short)

5, the code of the outer sheath

When there is an outer protective layer, it can include part or all of the cushion layer, armor layer and outer covering layer, and its code name is represented by two groups of numbers (the cushion layer need not be represented). The first group represents the armor layer, which can be one or two digits, such as table1; The second group represents the outer cover or coat, which should be numbers.

There are several ways to identify the model of video card and how to identify it. 1 desktop properties (except WIN7)

Everest 2 GPU-Z

3 Master Lu

4 optimization master

5 device manager

Show 6 independent games.

What cable terminal? Seeking God's help is to integrate optical cables into ODF units or boxes. Follow-up: Is the joint box welded end to end? Answer: It's also a question: the 6-core all-in-one terminal only uses 3 cores, and the number of terminals is the answer: I think it should be an all-in-one question: How many cores? Brother replied: You are an engineer, so you should count as 6 cores. Workload is how many cores you integrate. Question: Does the workload count as 3 cores? Answer: It depends on how the acceptance party handles this matter, because your work has been done and you have melted 6 cores.

What's the difference between liking and loving? Ask the help of the great god. Like and love are roughly determined by the length of time and the depth of feelings. Love is the continuation of love, and love is the beginning of love, an emotional change from shallow to deep.

What are O-legs like? Ask the great god to take a closer look at it for you, and you will certainly get something. There are two ways to correct O-leg, one is leggings, and the other is surgery. Regarding the surgical treatment of O-leg, the fibula should be cut off halfway, and it can't grow completely after recovery, but it won't affect the activity in theory. Make a triangular incision on the tibia, break it completely, realign and straighten the tibia. Theoretically, it is. Be sure to use an analgesic pump after the operation, or you will die of pain, twitch and insert a catheter. It's really hard to live alone, and the week after the operation is the saddest. You can't do strenuous exercise within 2 years after operation. Whether you can do strenuous exercise in the future depends on your recovery, surgical effect and complications. Finally, the postoperative scar is very long, and it will be more obvious if it is scar constitution. First of all, you can pay attention to people who are not O-legs. Even if they stand relaxed, they will not show the shape of O-legs. But some gentle O-legs will become lighter if they are put together intentionally. Many mild O-legs can be put together with the calf when sitting, but when walking or standing relaxed, O-legs appear again. Normal people's feet are close together and the middle of their calves can be folded. Of course, some people can't. Beautiful legs. Such as models, dancers, flight attendants, pilots, soldiers and so on. For example, the flag class soldiers, in 2009, the requirements of the military parade soldiers were even higher. Their requirements were that a park card could be sandwiched between their calves. In other words, soldiers are required to stand with their legs straight and there is little space between them. If it is a mild O-leg, you can change the leg shape by leggings. Leggings are different. Leggings can tie ankles, calves and thighs, especially in mild and moderate cases, which is very obvious and has no discomfort to the body. Many flag classes and parade soldiers use leggings. Please see if you have O-legs first. If you measure the distance between your legs accurately, the standard method is to put your ankles together and then measure the maximum distance between your knees and your legs in a relaxed state. If it is about 5 to 8 cm, it is a mild to moderate O-leg. From the situation you described, there is also a gap between your thighs, which may be related to your incorrect posture since childhood, so you can leave it alone if it does not affect your life. If you love beauty, you can use leggings to correct it. Do you know that water droplets wear away? A relative and friend of mine learned to play table tennis at the age of 50 and played it every day for 1 year. Finally, he was 300 degrees short-sighted. Others say that all those who practice back flip in their early teens have practiced it. Practice as long as nothing happens, and there will be more successful cases of leggings. The key is whether the soldiers in the flag class and the parade village have this perseverance. If they want to stand on their feet, straight legs are the first factor. The causes of O-leg are very complicated, including acquired reasons and congenital reasons. Most of them are related to calcium deficiency and poor posture when I was a child. Playing football is definitely a high risk factor for O-legs. It is reported that the O-legs of football players are 20 times that of normal people. You can observe that football players are basically O-legs. At present, there are a variety of leg press movements, which have a little effect on exercise, but other than that, they have little effect. If you want to correct it, the only way is leggings or surgery. After you read it carefully, I believe it will help you. First, you should make sure that your calves are deformed and your thighs are not, but most of them are bent, so most of them are tied with calves, usually sitting on a sofa or bench with their calves together. Then, tie it with a belt, shoulder strap or waistband and other materials with poor elasticity, and tie it with force below the knee. After tying them hard, you will find that your calves can be put together. It can be straightened or bent after binding, and the time is generally about 4 hours a day. If the calf is severely bent, the number of straps can be appropriately increased. O drops that are not too serious will generally have a very obvious effect around February. First of all, the degree of O is relatively light. If your leggings are long enough, such as more than 4 hours a day, and the leggings are strong enough and tight enough, then one month will be effective. In order to prevent rebound, you can tie them up for a long time and get rid of incorrect posture, such as walking, and so on. As long as you tie them up for a long time, they will only get better and better. If the young ilium has not been completely shaped, it is promising to correct it in a short time. How to tie a straight leg can reshape the bone through external force, so you can get a straight leg through leggings. Dancers and divers like Huang Doudou and Hong Tao, most of the congenital O-legs are corrected by leggings in the later period, so you will have obvious effect if you insist on leggings. Leggings can be tied with shoulder straps, belts, cloth belts, etc. Never use a belt sold online, because it is elastic and not tightly tied, and it won't have any effect. Generally, leggings should use materials with poor elasticity. Be sure to tie the leggings tightly when you tie them. If the intensity is too small, it doesn't matter, no matter how hard it is, it will have no effect. If you are light, you can only use leggings if you want short-term effects. It's corny but practical. You can tie it with a belt or shoulder strap for about 3 hours every day. 1 It will have a very obvious effect after 2 months. At the same time pay attention to the correct posture of walking, sitting and standing. According to the physical method, the lower leg below the knee is tied with a belt, shoulder strap, cloth strap or other materials that can be tied tightly, and then the legs are tied together, and then the belt, shoulder strap and cloth strap are tied together and fixed, or the legs are tied together and fixed. If there is a gap in the middle of the thigh, one leg can be tied together, and attention must be paid to it. After being tied tightly, the gap between the legs can be narrowed or even closed, and two legs will appear. If you have time, you can tie it at night if you want to get short-term results. If O is heavier, there will be some increase effect after a draw. 1999 February correction of leggings for parade soldiers and O-leg leggings. "After training every day, my clothes are soaked, and I have to change three sets a day." In midsummer, when standing training, sweat drips down the gloves. As soon as your feet are removed, you can see a pool of water under the ground. Wu Xiaofeng said that these unimaginable scenes were very common at that time. Wu Xiaofeng still remembers the dribs and drabs in the training, but he inadvertently "exposed" a "defect" in his conversation and laughter: half of a front tooth was lost. It turned out that Wu Xiaofeng was too tired to shine at the moment in a standing training, and fell heavily to the ground, and his front teeth were knocked out by half. "I made it up for the sake of image, and then I ate it again. Forget it." In order to accomplish the mission, no one cares about gains and losses and efforts. Because he loves playing football, Wu Xiaofeng used to have some "bowlegs". This is a taboo among the officers and men who are read. According to the standard, you can put a playing card between your legs. In order to solve this problem, before going to bed every night, Wu Xiaofeng has to tie her legs tightly with a backpack belt to fall asleep. Get up more than half an hour earlier than others every morning. "Because I just got up, my legs are numb, my calves are red and swollen, and I can't get out of bed right away. I have to relax for a while. " This bundle, which took more than two months, was finally corrected. I believe the above will satisfy you. If you are satisfied, please give me a favorable comment. Thank you.

How is light produced? Ask the great god for help. The radiation of light stimulating retina can produce visual ability. The visible spectrum range of electromagnetic wave is 380 ~ 770 nm (10-9m). Light can be divided into artificial light and natural light. We can see the ever-changing multi-tone scene in the objective world because our eyes receive the light emitted, reflected or scattered by objects. Light is closely related to human life and social practice. Light source: An object that can emit light by itself is called a light source. Light sources are divided into cold light sources and hot light sources; Cold light source: it means to emit light without heating (or to generate heat at a very low temperature). Such as fireflies; Thermal light source: refers to light emitting and heating (must be high temperature heat). Such as the sun; Strictly speaking, light is a kind of radiation that can be observed by human eyes. Experiments show that light is electromagnetic radiation, and the wavelength range of this part of electromagnetic wave is about 0.77 micron of red light to 0.39 micron of purple light. Electromagnetic waves with a wavelength of more than 0.77 micron to about 1000 micron are called "infrared rays". Below 0.39 micron to about 0.04 micron is called "ultraviolet". Infrared and ultraviolet rays can't cause vision, but the existence of this luminous object can be measured and detected by optical instruments or photography. Therefore, the concept of light in optics can also be extended to infrared and ultraviolet fields. Even X-rays are considered as light, and the spectrum of visible light is only a part of the electromagnetic spectrum. Light has wave-particle duality, that is, it can be regarded as a kind of high-frequency electromagnetic wave (10/2 ~1015hz), and it can also be regarded as a particle, that is, photon for short. The speed of light replaced the platinum watch stored in the International Bureau of Metrology in Paris as the standard for defining "meter", and it was agreed that the speed of light was strictly equal to 299,792,458 m/s, which was consistent with the definition of meter and second at that time. Later, with the continuous improvement of the experimental accuracy, the numerical value of the speed of light changed, and the meter was defined as the distance traveled by light in 1/299792458 seconds. Light is one of the sources of life on earth. Light is the foundation of human life. Light is a tool for human beings to know the outside world. Light is an ideal carrier or medium of information. According to statistics, at least 90% of all information received by human senses from the outside world is transmitted through the eyes ... Light is essentially an electromagnetic wave, covering a wide range of electromagnetic spectrum (from X-rays to far infrared), but its wavelength is shorter than ordinary radio waves. Visible light visible to the naked eye is only a part of the whole electromagnetic spectrum. When a beam of light is projected on an object, it will be reflected, refracted, interfered and diffracted. Light travels in a straight line in a uniform medium. Light waves, including infrared rays, have shorter wavelengths and higher frequencies than microwaves. Therefore, it is a natural and inevitable trend to develop from microwave communication in electrical communication to optical communication. Ordinary light: Generally speaking, light is composed of many photons. Under fluorescence (ordinary sunlight, light, candlelight, etc.). ), there is no connection between photons, that is, different wavelengths, different phases, different polarization directions and different propagation directions, just like an unorganized and undisciplined photon army, all photons are stragglers and cannot act in unison. When light is reflected, the reflection angle is equal to the incident angle. On the same plane, on both sides of the normal, the light path can be reversed. Light incident obliquely from one medium to another will produce refraction. If the density of the injected medium is greater than that of the original light, the incident angle is less than the refraction angle. On the other hand, if it is less than, the incident angle is greater than the refraction angle. However, if the incident angle is zero and the refraction angle is zero, no refraction will occur. However, light refraction still occurs in the same inhomogeneous medium. Theoretically, it can be injected from one direction without refraction. However, due to the unclear boundary, it is generally divided into several levels and is not flat, so refraction will occur anyway. For example, looking at the calm lake bottom from the shore belongs to the first refraction, but seeing a mirage belongs to the second refraction. The function of convex lens and concave lens is due to the first refraction. Laser-In the new world of optics, all photons are interrelated, that is, they have the same frequency (or wavelength), phase, polarization direction and propagation direction. Laser is like a disciplined photon army, acting in unison, so it has strong combat effectiveness. This is the main reason why laser can do many things, but sunlight, light and candlelight can't.

How is XX light X practiced? Ask God to help me eat the cover every day.

Please tell me how to identify optical cables and cable sequences by color. The color sequence of optical cable is 1 blue, 2 orange, 3 green, 4 brown, 5 gray and 6 white (transparent color), with six cores and one tube. The first core of the second tube is the No.7 optical fiber of the optical cable sequence, and the first core of the third tube is the No.3 optical fiber of the optical cable sequence, regardless of the number of cores.

Optical cables-blue, orange, green, brown, gray, white, red, black, yellow, purple, pink and cyan. ..

A pair of two colors. The farthest end uses the nearest front-end core, and the last two cores are used recently.

Cable-a (main) sequence: white, red, black, yellow and purple.

B (vice) order: blue, orange, green, brown and gray.

The main and auxiliary combinations * * * form 25 pairs of lines, with white and blue as the first pair, followed by order, and purple and gray as the 25th pair. For small conductor sequences, large logarithmic cables are bound with ribbons of the above color combinations.