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 x
China's ADSL access technology has developed very rapidly. So I have studied the features and applications of the ADSL access technology. I would like to share with you here, hoping it will be useful to you. The maximum downlink rate of ADSL2 is 12 Mb/s due to improved frame structure and optimized RS encoding. Because ADSL2 + uses a wider spectrum, there are more than 512 sub-carriers). When the distance i
At present, the high-bandwidth access networking mode is mainly PON-based FTTX access. The main aspects and assumptions involved in cost analysis are as follows:
Device cost of the access segment (including various access devices and lines, and average to each first-line user)
Construction cost (including construction cost and other overhead cost, Usually 30% of the total device price)
Operation and maintenance costs (generally about 8% of the total cost per year)
Regardless of the actual instal
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,
-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
division multiplexing technology to divide the ordinary telephone line into the common telephone channel, the uplink channel, the downlink channel. This avoids crosstalk between each other and provides channel-data service e1/t1, Frame Relay, IP, and ATM.Technology evolution of ADSLg.992.1 (G.DMT), g.992.2 (G.lite) is the ITU release of the first generation of ADSL standard, support uplink rate 640kbit/s to 2mbit/s, downlink 1mbit/s to 8mbit/s, effective transmission distance 3~5km. In 2002, th
filter program ...... ADSL is not symmetric, but asymmetry still has its provisions, the common standards are as follows: ITU-T G.992.1 (G. dmt) G. dmt: full speed, 8 Mbps downstream, up 1.5 Mbps ITU-T G.992.2 (G. lite) G. lite: downstream 1.5 Mbps, upstream 512 Kbps ITU-T G.994.1 (G. hs) Variable Bit Rate (VBR) ANSI T1.413 Issue #2 downlink 8 Mbps, upstream 896 Kbps and some faster update standards, but few telecom service providers currently use: ITU G.992.3/4
Re: ma5300 ADSL template parameters
Posted:
Parameter Name
Parameter description
All
Configure the ADSL transmission mode to ADSL, adsl2, and adsl2 + full compatibility mode. Supports transmission modes such as G992.1-G992.5 and t1.413.
Full Rate
Set the ADSL transmission mode to full speed. Supports transmission modes such as g992.1, g992.3, g992.5, and t1.413.
G. Hs
Set the ADSL transmission mode to G. H
. Supports HPAuto-MDIX detection and automatically adapts to cross-network cables. Supports DHCP server functions and dynamically allocates IP addresses. Supports NAT functions to allow LAN users to access the Internet at the same time and supports TFTP promotion.
Ii. mainstream wireless ADSL cats
In addition, mainstream wireless ADSL cats support ADSL2 + and provide download speeds up to 24 Mbps.
Taking China's wireless ADSL cat as an example, this c
DSL technology and services are one of the fastest growing areas of broadband networks. The development of new-generation ADSL chips has been ongoing in the process of standard formation. Different chip manufacturers adopt different strategies. At present, the ADSL2 chip has preliminary products, and more products will be launched this year.
The development of new-generation ADSL:
On the one hand, because the new generation of ADSL does not change m
required four devices to one device.
The device provides a transmission rate of 8 Mbps and 1 Mbps at full speed. In G. lite mode, the device provides a transmission rate of 1.5 Mbps and kbps. It supports HP Auto-MDIX detection and automatically adapts to the Cross-network cable. It supports DHCP server and dynamic IP Address allocation. It supports NAT, allows LAN users to access the Internet at the same time, and supports TFTP upgrade.
Ii. mainstream wireless ADSL cats
In addition, mainstream
ADSL, increase the user-side rate, and provide a network platform for streaming media applications, a solution is urgently needed to solve this problem.
The ADSL line extender developed by Chengdu Wide Area Communication Technology Co., Ltd. in China can solve the above two problems. When used in the first-generation ADSL system, the transmission distance from the general center to the client is 3.5Km (4mm-5.5 twisted pair wires) while maintaining the normal telephone service ~ 6Km (4mm. Twiste
, supporting ADSL2, ADSL2 +, and ADSL. It has four standard 10/100 Mbps Base-T Ethernet interfaces and is equipped with the MDI/MDIx 10/100 M automatic switch function to easily connect multiple computers or other switches/hubs.
ZTE's ZXDSL 831CII ADSL2 + MODEM series are also such a device with routing features that can adapt to multiple line transmission modes
Wireless AP, integrate the functions that originally required four devices to one device.
The device provides a transmission rate of 8 Mbps and 1 Mbps at full speed. In G. lite mode, the device provides a transmission rate of 1.5 Mbps and kbps. Supports HPAuto-MDIX detection and automatically adapts to cross-network cables. Supports DHCP server and dynamic IP Address Allocation. Supports NAT to allow LAN users to access the Internet at the same time. Supports TFTP upgrade.
Ii. Mainstream securi
dial the number, the gateway changes every time. The Gateway is the subnet mask after the dial. so what should we do? Look down.
◆ Install routeros (I used 2.927) with three NICs, one Intranet and two Internet .. connect the Intranet network cable so that you can access the route... modify the name of the route Nic.
◆ Add the pppoe client to the two NICs of the Internet (WAN1, WAN2). The first one is the username and password for configuring the ADSL gateway and adding the dial-up number, the s
detection and automatically adapts to cross-network cables. Supports DHCP server and dynamic IP Address Allocation. Supports NAT to allow LAN users to access the Internet at the same time. Supports TFTP upgrade.
Ii. mainstream wireless ADSL cats
In addition, mainstream wireless ADSL cats support ADSL2 + and provide download speeds up to 24 Mbps.
Taking China's wireless ADSL cat as an example, this cat integrates ADSL cat + wireless route + wired rout
allow LAN users to access the Internet at the same time. Supports TFTP upgrade.
Ii. mainstream wireless ADSL cats
In addition, mainstream wireless ADSL cats support ADSL2 + and provide download speeds up to 24 Mbps.
Taking China's wireless ADSL cat as an example, this cat integrates ADSL cat + wireless route + wired route + Wireless AP, supports ADSL2 +, built-in firewall, provides four Ethernet interfaces
In order to get rid of the PPS influence speed and BT caused slow network speed problem, sharing the Internet should be limited to speed.
When it comes to speed limits, you may think of a peer-to-peer terminator. A peer-to-peer Terminator is a software that restricts the speed of a LAN computer, and is used by many people.
Speed limit, through the unlimited router settings can also be easily done, here to introduce a speed-limiting function of the wireless router.
Wireless router with speed-l
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
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