Notebook and mobile phone infrared reception and transmission function is normal, if the notebook infrared interface is damaged, you can also buy COM port infrared converter or USB port infrared converter, about 100-200 yuan, this method is also suitable for desktop, so that desktop can also be wireless Internet access through infrared GPRS mobile phone. The phone used supports GPRS, and open GPRS mobile Internet access services in the corresponding telecommunications sector.
No, just buy a wireless card. But carriers charge extra for using a wireless card. If you are referring to the outdoors is relatively close, you can buy a wireless route to solve the problem.
If it is not in a place where there is a network, you need to buy 3-4G USB hardware network card, in the purchase of telecommunications, Unicom, mobile network card, it is similar to the small card of mobile phone, on the Internet or business department to buy, there are a few months, half or a year, package traffic. Install this small card on the USB hardware network cardAfter the driver is automatically installed, you can activate it online.
Multi-device connection: Portable WiFi usually supports multiple devices to be connected at the same time, and users can connect devices such as mobile phones, tablets, and laptops to the same network to facilitate the sharing of resources such as files and printers. Cost savings: Using portable WiFi can avoid incurring high roaming costs during travel or business trips. Users simply purchase a local data plan and enjoy high-speed Internet connections at no additional cost.
As shown in the figure, the optical fiber can not be directly connected to our Internet equipmentOn the Internet, optical fiber must use the optical signal into the electrical signal equipment, photoelectric converter (also called optical transceiver) - that is, we commonly known as the light cat. The optical signal is converted into an electrical signal by the optical cat and then connected to the Internet equipment we usually use through the network cable.
The biggest advantage of wireless Internet access equipment is the environment, does not need to be limited by the line, has a certain mobility, can be in the mobile state through wireless connection communication, construction difficulty is low, low cost. Disadvantages of wireless Internet access: wireless Internet access equipment is weak anti-interference, slow transmission rate, limited bandwidth, transmission distance is also limited, and low cost. Application: YesOnline Internet is suitable for indoor places, wireless Internet is suitable for outdoor places.
The revelation of nature IVOnce upon a time, a scientist did two such experiments. The first time, he put a frog in a cage with some live flies. After a few days, they found that the frog was still alive, and the flies were eaten by the frog. The second time, he put a frog in a cage and hung some dead flies in it. After a few days, I found that the frogs were actually starved to death, but not one fly was missing.
The revelation of nature 1 Nature has given mankind many Revelations, it is the earliest "teacher" of mankind. History gives us many good examples. Because firefliesThe foreign language abbreviation for home, the Chinese abbreviation for fiber to the home.
2, if your broadband is FTTB, then your home should be a network cable into the home directly access the router or computer and other terminals, no other equipment. If the FTTH mode is used, an optical fiber line should be pulled in from the outside, connected to the optical fiber cat, and then the network cable from the optical fiber cat into the router or computer terminal.
3, the main difference between fiber to the building (FTTB) and fiber to the home (FTTH) is the depth of fiber access. FTTB means that fiber optic lines are laid to the building or neighborhood and then through the traditionThe copper cable carries the network signal to the user's home. FTTH refers to the laying of fiber directly to the user's home, providing higher data transmission rates and more stable network connections. When choosing FTTB or FTTH, network speed is not the only factor to consider.
4, fttb, that is, optical fiber to the floor is generally EPON, most of the equipment is 9806h, f822, and ftth, ftto is GPON and EPON both. The user can see the model of the light cat, what d420, f420 and the like are EPON, e8-c class lightCats are mostly gpon, such as 8120, f620, f660 and so on.
5, FTTB: - No dial-up: In some services of China Telecom, such as "Feiyoung", after fiber to the home, users can enjoy no dial-up network connection. - Easy installation: Just install the network card on the user's computer, you can achieve 24/7 high-speed Internet access. - Rate limit: The maximum upstream and downstream rate provided by the FTTB is 10Mbps, and the bandwidth is exclusive.