Optical transceivers have a lot of indicators, but none of them are important. A little useful is the transmission distance. Generally, the fiber optic transmitter can transmit 20-60 kilometers. If you need more distance, just replace the optical module. Then there is the connector form of the optical port, the more common is FC type (round) and SC type (square), the order is related to whether or not to match the pigtail.

1. What is meant by communication?

Telephoning is a kind of communication, and a telephone is a kind of communication equipment. The microphone of a telephone turns our voice (vibration of air) into a changing electric signal (voltage that changes with time) and sends it out, and the headset of a telephone turns the changing electric signal into the vibration of a speaker and becomes sound.

This changing electrical signal is called an analog signal, and analog signals are characterized by a changing voltage that is continuous in time.

The transmission of electrical signals is done over wires.

2. What is meant by an electrical signal?

Electrical signals are also called signals, the number of changes per second of the signal is called the frequency with Hertz (HZ) as a unit, the frequency of the signal has a high and low like the sound has a high and a low, low to high frequency range is called the frequency band, different signals have different frequency bands, on behalf of the telephone sound of the electrical signals of the frequency band is 300HZ-3400HZ, stereo audio sound frequency band is 20HZ-20000HZ ( 20,000HZ is also written 20KHZ, K means 1000, 1000K is also written 1M), electrical signals using wires to transmit the 1000K is also written 1M). 20000HZ is also written 20KHZ, K represents the meaning of 1000, 1000K is also written 1M), electrical signals using wires to transmit, with wires (the standard name is cable) to transmit the sound of the electrical signals is cable communications. The electrical signal into a light signal device called a laser, it is like a light bulb with electricity on the light, but the light it sends is a high intensity light. The wavelength is 1310 nanometers or 1500 nanometers. At the other end of the fiber is a light receiver, which turns the light signal into an electrical signal.

3. What is meant by digital signals

Analog signals can become discrete signals after sampling discrete signals become digital signals after coding. For example: sound feed".

4. what is optical communication

Two people agreed, I use a flashlight to shine on your window, if you turn on the light, I will go in, if not, I will leave. This is simple optical communication. Optical communication, is the use of changes in the presence and absence of light to transmit information.

5. Optical Communication

The light of optical communication is not ordinary light, it is laser, and the medium of light propagation in optical communication is not air, but optical fiber.

6. What are optical fiber and optical cable

Optical fiber is a glass filament, will be more than one with the optical fiber twisted together like a rope, it is called fiber optic cable fiber optic cable, you can transmit light, that is, in the optical fiber at one end of the luminous, the other end will be able to see. Very fine glass wire, although soft as plastic can be bent, but also easily broken, so the glass wire outside, but also wrapped in some coating, to strengthen the protection. And thickened to the extent that the human eye can see, this is the optical fiber. Fiber optic cables have a strong outer skin made of plastic.

7. Fiber optic cable fiber optic common sense

Fiber optic cables can be spliced together, the use of fiber optic cable fusion splicing machine, you can connect 2 fiber optic cables into 1 fiber optic cable. General fiber optic cable factory length is 2 kilometers, for 10 kilometers of the line, you have to use 5 fiber optic cables, fusion splicing 4 joints. Fiber optic cables look just like cables. Stealers steal fiber optic cables because there is no copper. Fiber optic cables can be erected with poles, buried directly in the earth, or threaded in pipes

8.What is Fiber Optic Communication

Fiber-optic communication is the process of turning the sound of a telephone into light, sending this light out at one end of a fiber-optic cable, and then turning the light into speech at the other end of the cable.The number of signals transmitted over one fiber-optic cable can be hundreds of thousands of telephone calls. The number of signals that can be transmitted over one fiber can be as many as hundreds of thousands of phone calls, and the types of signals that can be transmitted over one fiber can be as many as you want, including phone calls, images, data, and so on.

9. Optical fiber communication equipment

The equipment at both ends of a fiber optic cable is called fiber optic communication equipment. Manufacturers of fiber optic cables, and manufacturers of fiber optic communication equipment are generally separate.

Fiber optic communication equipment, including fiber optic terminals and PCM equipment, PCM equipment is a 30-channel telephone signal into a 1-channel E1 signal.

The so-called E1 signal is the standard digital interface of 2M.

10. New Optical Concept

In recent years, the manufacturer will be the complex with the optical transmitter to do together called photoelectricity combined equipment, it is also called optical transmitter. Now we say that the optical transceiver is mostly this kind of equipment.

11 .E1 interface concept

E1 interface, is currently the international standard digital signal interface commonly used. 5 flowers and 8 doors of the connection between the communication equipment, most of them are connected through the E1 port. Standard E1 port, so that different manufacturers of equipment, can be connected. E1 interface rate is 2048kbit/s, commonly known as 2M port.

12. What is the optical transceiver

Optical transceiver is a device that turns multiple E1 signals into optical signals. Optical transceiver is also called optical transmission equipment. According to the number of E1 ports, the price is different. Generally the smallest Optical Transmitter can transmit 4 E1s currently the largest Optical Transmitter can transmit 4032 E1s each E1 includes 30 phones.

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