Is it an electric cat? What is an electric cat

Power Cat Knowledge (Principle Class).

1. What is an electric cat:

The original meaning of power cat is "power network router" (some people also call him "power line communication"), and the English abbreviation is PLC (power line communication). It is the use of the power line that transmits the current as the communication carrier, and converts any power socket under a meter circuit into a network interface, plug and play, without additional wiring, it can be interconnected with Ethernet and connected to the Internet network. This device has 56 128-bit DES or 128-bit AES data encryption protection, and takes into account the security of data transmission.

Note: The power cat itself, she does not generate the network. It is a product that extends, expands, and extends the scope and space of the network, and is a product that allows you to directly use the existing power line circuit to access the Internet without wiring cables).

2. How does the Zinwell megahertz power cat work?

PLC (Zinwell megahertz power cat) transmits signals in the frequency band range of 12m to 28m. When transmitting, the user data is modulated by using OFDM (QAM 8 16 64 256 1024, QPSK, BPSK, ROBO) modulation technology, and then transmitted on the power line. At present, the achievable communication rate is between 14M and 1G depending on the specific device.

The PLC equipment is located at the sub-office and the modem, and the central office is responsible for the communication with the internal PLC modem and the connection to the external network. During communication, the data from the user enters the modem for modulation, and is transmitted to the central office equipment through the user's distribution line, and the central office demodulates the signal and then transfers it to the external Internet network.

3. How does the Zinwell megahertz ZPL-210 power modem transmit network signals on the power line and access the Internet?

ZINWELL megahertz ZPL-210 power modem is a new way to access the Internet, that is, the network signal on the optical fiber is "modulated" to the ordinary household power socket (standard 50 60Hz AC + PLC (ZPL-210) signal = modulated signal), so that the signal is transmitted on the wire. Plug in the "Zinwell Megahertz ZPL-210 Power Cat" on the power socket, and she will demodulate and separate the network signal on the wire; Then use the network cable to connect the "ZPL-210" with the standard RJ45 interface of computers and other Internet equipment, and the Internet can be accessed.

4. Has the power cat passed the test? (Or: Is there an application standard for power cats?) Is the power cat widely used? ）

Yes, it has passed international standards.

I use the electric cat at home (the brand is Huisi Yida), the effect is good, there is no need to pull the network cable between the rooms, and you can connect it directly by plugging in the power cat. School dormitories should be the same, as long as there are electrical outlets.

The power modem itself cannot be connected to the Internet, but the equipment is interconnected, and it still needs to be used with the ADSL modem of Telecom to access the Internet.

PowerCat is a "powerline communication modem", which is a common name for modem that provides broadband Internet access through powerlines. Use existing power lines and sockets in your home or office to connect PCs, ADSL modems, set-top boxes, audio devices, monitoring devices, and other smart electrical devices to transmit data, voice, and more.

It has the characteristics of plug-and-play, and can transmit network IP digital signals through ordinary household power lines. Most of the power cats are sold in sets, one is a router, one is an extender, after the main router is plugged into the network cable, the network signal will be transmitted, and then there is a network, the extender is plugged into any location in the home, such as a wall socket, so that the extender will receive the network signal, and then convert it into a wireless signal, so that the network can be used.

The principle of the power cat

When the computer sends information, the power modem can use the modulation technology to modulate the user data appropriately, and then load the information carried by the current itself with high frequency, so that they are used on the power line for transmission, in addition, the receiving end will get the relevant signal, and after the previous modulation signal is taken out by the filter, and then the relevant demodulation is carried out.

Through such a process, the original communication signal can be obtained, and it can be transmitted to the computer or the first machine, and the information can be transmitted at one time. As the third-generation network transmission equipment, PowerCat has the characteristics of high-speed and stable network cable, and also has the convenience of wireless network.

Powerline Ethernet adapter, also known as powerline modem, commonly known as "power modem", this power line carrier communication technology modulates digital broadband signals in a certain signal frequency range and loads them into the 220V mains for transmission through "power modems". In this way, at any node within the scope of the power grid, the modulation signal in the power grid can be demodulated into the original broadband digital signal through another "power cat", so as to achieve the purpose of turning the power supply network into a broadband network, which is also called PLC technology.

2. The power modem is similar to the router in use, and the current mainstream power modem supports the wifi wireless function, which can solve the Internet access needs of smart phones, tablets and other wifi devices.

3. There are 2 power cats in a set, one main for the router and one for the extender. The main router is plugged in and connected to the network cable, and the main router has transmitted the network signal to the telecom. The telecom network at home is already available, and then the extender can be plugged into any room socket in another part of the home (in the same meter), so that the extender has received the network signal from the wire, and converted it into a wireless signal, which can be used by desktops and laptops.

It is a kind of cat that uses the power line to access the Internet, and it is still quite rarely used at present.

The power cat is mainly to solve the problems of home wiring and IPTV networking.

1. For example, if you don't want to pull a long network cable to connect to the Internet, it is very convenient to use the electric cat.

2. Some families use wireless routers, but the signal is relatively poor. At this time, you can use the electric cat.

3. Many IPTV are installed, but there is no network port in the set-top box, so it is necessary to use the power cat to connect to the Internet.

In fact, there are many uses for power cats, which can be used for home networking. ——Lechen Electric Cat is at your service.