vdsl2 vplus

In fact, many people hope that the 2007 3G licences will be able to distribute digital trunking licences to some of the emerging operators, such as railcom, so that even if the 2008 Olympic Games cannot replace the digital trunking system in time, So can also make the domestic digital trunking communication standards can have more powerful support and European and American standards a high and low. VDSL2 Technical Features In recent years, with the

Broadband Access Network is a frequently used access method. So I have studied the development and complementarity of broadband access networks. I would like to share with you here, hoping to help you. In recent years, with the rapid development of broadband Internet technology and broadband access network services, broadband access network users have gradually evolved from a single application of high-speed Internet access to comprehensive applications such as VoIP, IPTV, and visual communicati

communication quality of leased line users; other users can flow to GE upstream DSLAM equipment. 2) For DSLAM with FE upstream, if the number of users is less than 200, or in remote areas, the uplink resources are limited, the original uplink mode can be retained; if the number of users exceeds 200, you can merge multiple DSLAM users into one DSLAM device based on the actual situation, and use GE uplink. 3) the original use of STM-1, E1 and FE cascade DSLAM, can be removed according to the spec

, on the other hand, VDSL technology has unparalleled advantages in bidirectional symmetry and high bandwidth within a short distance, so people may look forward to VDSL technology. It can be said that the choice of the two technologies is very contradictory. In the long run, Using DMT modulation is the only way to develop VDSL technology. The compatibility between VDSL2 and ADSL2 + gives the industry a clear idea of DSL technology development: prior

resources are limited, the original uplink mode can be retained; if the number of users exceeds 200, you can merge multiple DSLAM users into one DSLAM device based on the actual situation, and use GE uplink. 3) the original use of STM-1, E1 and FE cascade DSLAM, can be removed according to the specific circumstances, and according to the above principles using different uplink networking. Because DSLAM will provide access to TriplePlay, apart from the main factor of uplink bandwidth, DSLAM also

availability and sustainable development capability. The cost is relatively low, the scale effect is obvious. The network runs stably and is not affected by the objective environment. High safety performance, strong maintenance capability. The equipment has simple structure and less intermediate links. As can be seen from the above points, wired technology has more advantages than wireless technology, especially in terms of bandwidth delivery capabilities, so the mainstream of wired techno

business broadband network, the broadband access network is undergoing profound changes. On the one hand, xDSL technology gradually from adsladsl2adsl2+ to provide a higher bandwidth VDSL2 upgrades, which also requires vdsl2dslam closer to the user side. With the increase of the number of VDSL2 Zhi, the requirement of efficient aggregation of large quantities of dslam is put forward. On the other hand, fib

There are many things worth learning about broadband access technology. Here we mainly introduce how to achieve bidirectional symmetric transmission speed of Mbps, which can be upgraded from ADSL, this section describes the use of broadband access technology to achieve stable transmission quality. Recently, NEC and NEC Magnus Communications announced that they will provide communication operators with the latest "AM3150R2" product of the "AM3100 series" Integrated

three-band standard has defined either the QAM or DMT modulation methods, as a result, there has been a long debate over the two standards, facing the choice of the two modulation methods. The QAM method is simple and easy to develop, and the DMT method is more complex. Although with the development of ADSL2 + technology, many people have doubts about the application prospects of VDSL technology, on the other hand, VDSL technology has unparalleled advantages in bidirectional symmetry and high b

than 250 M away from the end user, with a target bandwidth of 500-1000 M per household. As you are closer to the user, you can get a relatively higher bandwidth, and G. fast will be used as a gigabit access solution comparable to FTTH. Unlike previous technologies, G. fast introduces user-defined concepts at the initial stage of standard design. Traditional copper wire access technologies, both ADSL2 and VDSL2, are fixed upstream and downstream bandw

optimize the broadband access network according to the "FTTx + ADSL2 +/VDSL2" construction model. They believe that the "light-to-copper retreat" is not only time-ordered, but also space-oriented. In the early days, PON technology can target some high-end users with high bandwidth business needs, or, as a supplement to xDSL, xDSL is provided in areas with intensive SMEs to make up for the shortcomings of xDSL in these fields. After a step-by-step con

Video Introduction Tutorial videos for ASP. NET Core Web API + Angular 6 I am back-end developers, the front-end of the angular part of the relatively poor, you can directly see the code!!!! This is a live video of a small project that uses: ASP. NET Core 2.1 API Identity Server 4 Angular 6 Angular Material This project is relatively simple and suitable for the ASP. NET Core Web API and Angular beginners. The results of the project's final completion: Video Catalogue

small DSLAM applications. Supports ADSL2 +, VDSL2, POTS, LAN, SHDSL, and other types of broadband access; supports GE/FE, EPON/GPON, 10G-EPON, and many other uplink connections; supports point-to-point (P2P) and point-to-point (P2MP) applications, supports star, chain, ring and other networking methods. A lot of data is mosaic.The appearance of the previous graph is long. This is how it is split. Well, to put it bluntly, the line is from this devi

about the Chinese market. Yesterday I heard a Chinese operator talk about the IPTV deployment standards that need to be observed in mainland China. These standards may be unique in China, not in other world standards, therefore, we are very interested in this point. Standards are formulated to promote the development of the whole DSL industry. IPTV is also very important for the development of DSL, we believe that more broadband services can promote the development of DSL, so I am very encourag

unified. 2. Campus ADSL Access Solution Campus ADSL Access SolutionThe above design is mainly designed for the actual situation of the school. This solution can be applied to the network environment with ADSL Broadband. In general, there are Internet access needs in the school library, step-level classrooms, and dormitories. However, the network needs and environments in each place are different. Under normal circumstances, the library and dormitory fixed terminal and mobile device coexist, so

-333) this. width = screen. width-333 "> User network topology. Each junction box leads to four to six wiring cables. The wiring cable is connected to the incoming cable through the "cable box. Each binning box connects 4 to 12 users. Wiring cables are directly buried. The optical fiber can be laid from the center to three different locations: To the transfer box FTTN), to the distribution box FTTC) or directly to the FTTP ). The closer the optical fiber to the user, the wider the bandwidth the

technology to make breakthroughs. At present, VDSL2 has been continuously optimized, and the use of SuperMIMO technology and other multi-line bundling Technology of ultra-high bandwidth DSL has made significant technological breakthroughs, can provide higher bandwidth at a short distance, the development direction of such technology is also to better co-exist copper and optical fiber technologies. At the same time, in the mobile business field, it pr

-based softswitch network architecture. In this network architecture, the core control layer uses large-capacity Softswitch control devices: ZXSS10 SS1b, and a single set of devices can support a maximum of 6 million users; in this project, each of the two ZXSS1b hardware configurations can support 50 thousand voice users (the hardware itself can actually support 0.1 million AG voice users), and each software license has 16 thousand users; At the same time, two sets of MSG9000 are configured for

server that logs on to the network center for verification, then you can access the resources with the corresponding permissions. Then, the remote host sends encrypted information to the VPN device in the enterprise network center over the Internet. When the data packet arrives at the target VPN device, the data packet is unwrapped, and the digital signature is verified and decrypted. Remote broadband access through VPN In this solution, VPN devices choose Avaya VPN gateway products, network ce

expansion of the application scale, the cost of GPON is continuously decreasing. "So far, the large-scale application of GPON may reach a critical point. We can see that the world's major operators will basically promote or build FTTx in different forms. At the same time, as an international standard, GPON receives a large number of vendor support. From the operator's point of view, GPON, or a number of carriers already deployed on GPON are also considered. In terms of the GPON standard, the St