Summary of Broadband Access Technology Learning

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 VDSL2 service device ". The access device supports ITU-T G.993.2 international standards and will be available in overseas markets from now on.

In recent years, ADSL/SHDSL and other broadband access technologies have been developed, and demand for higher transmission rates and greater service areas has become more obvious. VDSL2 can reach 4 km in terms of transmission distance, which is greatly improved compared with VDSL1, which is only 1km in the past. In addition, because it can be compatible with ADSL/ADSL2 +, the upgrade can be completed on existing devices. In the future, its development trend is immeasurable. The new product uses existing metal telephone lines to achieve high-speed broadband access technology of Mbps and high-quality transmission, meeting the needs of communication operators to build next-generation networks and provide high-reliability broadband communication services.

Features of the new product are as follows:

1. Bidirectional symmetric Mbps transmission speed, which can be upgraded from ADSL

The new product uses ADSL2 access technology to provide broadband access technology. The uplink/downlink speed can reach 100 Mbps. The client device can connect to a standard copper telephone line to accommodate 24/48 downstream ports. You can select the GPON (Gigabit Passive Optical Network) or GbE (Gigabit Eithernet) Optical access Network to connect local devices to Optical fibers. In addition, because you can connect to the existing ADSL/ADSL2 + modem, You can smoothly upgrade from the existing ADSL service.

2. Multiple features of stable transmission quality

The new product is equipped with the following functions for the deterioration of communication quality caused by crosstalk between adjacent wiring rooms and peripheral noises.

① (Impulse Noise Protection) Function
Optimize burst noises. ② Bit Switching
When an interference or disturbance occurs in a region, the transmitted data in this region can be transferred to another region to eliminate the interference impact.

③ SOS Function
When an error occurs due to sudden noises, the wiring speed decreases rapidly to avoid downtime.

④ SRA (Seamless rate adaptation) Function
Ensures the optimal speed for easing noise changes.

3. Excellent support functions

The new product is equipped with the DELT function and SELT function, which helps investigate the reasons for low wiring speed and downtime. When a fault occurs, the local server can remotely confirm the network status.

4. power-saving mode

This product is the first in the industry to comply with the European Joint Operation specifications and standards related to power consumption of broadband equipment. The energy-saving NEC plan has been released since October this year, sales activities in Europe, Asia, Australia, and Central and South America are expected to sell 60000 sets in the next three years.

For a long time, NEC has been using the "AM31 series" product of the ADSL multiplexing equipment and the "AM3100 series" product of the MSAN (Multi Service Access Node) device through the sales Bureau, it has contributed to the broadband implementation of fixed-line communication in overseas markets. At the same time, they also enjoy high praise in Japan and are praised for their high quality and stability. At present, they have achieved more than 7 million of the import performance of wiring, with the highest market share in VDSL. The new product was launched based on the advantages accumulated by NEC over the years. In the future, NEC will continue to meet various market needs in the broadband access technology field and provide the best solutions.

1. Discussion on the Development Trend of optical fiber access technology
2. Development History and prospects of broadband wireless access technology
3. Discussion on the Development Trend of wireless access technology
4. Impact of broadband access network on Smart Home
5. Three challenges for Broadband Access Networks