CATV is the abbreviation of "Community antenna television", that is, sharing antenna TV.
CATV Network is the "CATV network", is an efficient and inexpensive comprehensive network, it has a wide bandwidth, large capacity, multi-function, low cost, anti-interference ability, support a variety of services to connect the advantages of thousands of households, its de
CATV Network is an efficient and inexpensive comprehensive network, it has a wide bandwidth, large capacity, multi-function, low cost, anti-interference ability, support a variety of services to connect the advantages of millions of households, its development for the development of Information superhighway laid a foundation. In recent years in China CATV Network development, the country has built more than
narrowband services, combined with Cable Modem and other technologies, it can economically access user-side broadband services. This is one of the commercial broadband service access technologies for users, namely, FTTC + HFCs ). The goal of Broadband Service Access Technology for users is to achieve FTTH at home through optical fiber, combined with the networki
. DMT divides available bandwidth into N sub-channels. Based on the data transmission capability of sub-channels, the data is dynamically allocated to each sub-channel, greatly improving the bandwidth utilization and minimizing the error code and noise, this increases the system transmission capacity. In addition, ADSL uses the New Adaptive Filtering Technology, grid encoding, and the forward correction of intertwined methods to overcome Gaussian noise interference and increase the channel capac
broadband access technology. Up to 100 users can be connected to each network line. A bidirectional amplifier must be set on each line to support uplink channels. a Cable Modem must be installed on each client, install an IP router in the front-end device. It is worth noting that the coaxial cable network can be used as a data concentrator to avoid excessively concentrated use of the router. In some cases, high-speed buffers and proxy servers can be
The wireless broadband technology has been favored by many people. Its excellent performance has become a leader in wireless technology. Even so, it also has many drawbacks. So what is the bottleneck of its development? Let's take a look at the problems in the development of wireless broadband access products.
As a new access technology, broadband wireless access
OverviewHFC (hybird Fibre coax) network refers to the combination of optical fiber coaxial network, in China has a huge scale, is China's veritable "Bai." In the front end, the information enters the optical node and completes the main transmission part by the optical fiber, and the coaxial cable is used in the user access layer. Most of the new or re-built CATV networks use this structure, the system bandwidth of 750MHz or 860MHZ, can be extended to
A Broadband Router is one of the best solutions for shared bandwidth connections. Compared with the proxy server, the Broadband Router has four advantages: first, no maintenance is required. Once the configuration is successful, no management is required; second, the operation is stable; third, no computer is required as the proxy server, this can effectively save energy and reduce costs. Fourth, some
Many friends in the dial-up connection when the broadband connection is slow and annoying, in particular, novice friends often encounter broadband connection slow but helpless, below to share how to solve the problem of slow broadband connection. First of all, we must first find the cause of the slow computer boot broadband
How to establish a broadband dial-up connection under Windows XP
1, the desktop right key " Network Neighborhood ", choose " attribute ";
2, select "
Create a new connection ";
3, follow the prompts wizard to choose the next step;
4, choose "
connect to the Internet";
5, select "
manually set my connection ";
6, select the "
User name and password required to connect
Many people do not record their own broadband account password, generally directly set up in the original router, after that can automatically dial, the Internet is very convenient. But if you buy a new router or we need to restore the original router to the factory setting, you need to reset it, you need to use the Broadband account password. If you forget the broadban
Prepare to install broadband in the relocated house. Seeing the advertisement of China Mobile at the stairway, mobile broadband can be used for one month, and only 50 RMB per month for 2 m,If you think it is inexpensive, you can call 10086 for trial registration. It is very convenient to handle. You only need to register a mobile phone number and do not need the initial installation fee.In the afternoon, th
increase the downlink transmission rate of telephone line to 6-8mbps;The VDSL access device can increase the transmission speed of the telephone line to 20Mbps.LAN (LAN) Access: User Desktop rate is generally 10/100mbps;HFC access: Need to have the two-way communication of CATV network (single need to transform to bidirectional), need to buy cmts, need to take noise restrain measure according to actual situation, need debugging more analog equipment,
The 《21Century Economic ReportItVersion, half version of the report on the recent trends of China Netcom and Tian yunning.
Opportunities for China Netcom's broadband breakthrough
As the only one of the four major carriers that has not yet logged on to the overseas capital market, China Netcom is currently far from competitive. Tian Yining said: "the past three years are the initial stage of our strategy formulation and implementation. In the next
Dialupass is a software that can view the password of a broadband dial-up account that has been saved on this computer, and supports WinXP, Win7, Win8, and Win10. The use of the method is very simple, as long as the open Dialupass, the computer saved broadband account and password will be displayed.
Routerpassview How to use Routerpassview you can view the broad
PA interface was released earlier, but has been slow to release official documentation, due to the recent customers more, close up this documentBecause PA uses the standard RADIUS authentication protocol, so users need to build a local billing, because the majority of users only hundreds of, do not say to buy a local version of the charge 5000-6000,On the single from the electricity bill, a server, the most common PC also to 120w/h,120w*24*365=1051200, that is, 1000 multi-degree electricity, to
In the previous article, we introduced the installation and configuration of wireless broadband through "wireless broadband 1X and wireless broadband 3G-Wireless Broadband User Manual 1. Next, let's talk about the wireless broadband access content and its software content.
Access network refers to the "user interface and Business node interface between the implementation of the host function of the entity." Access network basically includes transmission system, multiplexing equipment, user/network interface, digital crossover equipment, etc., usually access network transmission system according to the transmission medium into wired access and wireless access. Wireless access technology has a variety of classification methods, according to the transmission rate, th
Bandwidth speed adjustment is a technology that improves DSL performance and wired Internet connections. When broadband technology began to become popular, domestic network enthusiasts began to experiment with Cable and DSL adjustment.
The adjustment of low-speed (dial-up) Internet access performance is often not comparable to that of normal broadband connections. Although the speed adjustment of
At present, ADSL permeate every corner of our lives, whether it is enterprises, Internet cafes, or home users using ADSL to access the Internet, usually, an ADSL line can only support one computer to access the Internet, however, after using a networking device, you can implement an ADSL line to support Internet access shared by multiple computers. Generally, devices that implement the shared networking of ADSL include ADSL Modem, Broadband Router, an
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