Alcatel 7300에서 사용되는 ADSL Line Card 에 대한 설명입니다.
장비에서 지원되는 최대속도의 비밀은 이 문서에...^^

Alcatel 7300
Asymmetric DSL (ADSL) Line Card for Analog POTS (ETSI version)

The Alcatel 7300 ASAM DSL Subscriber Access Platform (ASAM) features a single board that delivers analog voice and DSL over a single copper pair.

High-speed Internet access with DSL technology

Digital subscriber line (DSL) technology is fast. Once users experience DSL speeds, they do not want to go back to dialup access. DSL achieves broadband speeds over ordinary phone lines.

With DSL, service providers can offer residential and business customers access to high bandwidth information on demand, with improved opportunities to experience streaming video, online gaming, multimedia applications, and telecommuting.

Asymmetric DSL (ADSL), the most common form of DSL, delivers multistandards-based, high-speed DSL over a single copper pair, simultaneously accommodating analog (voice) information and digital (data) information on the same line. The Alcatel ADSL solution for analog POTS ADSL is the most widely deployed form of DSL technology. Most homes and small businesses currently using DSL technology are connecting to the Internet with an ADSL line.

Typically, ADSL generates downstream speeds of up to 8 megabits per second (Mb/s) - 125 times faster than traditional 56.6 kilobits per second (kb/s) analog modems - and generates upstream speeds of up to 800 kb/s.

Alcatel's ADSL solution for analog plain old telephone service (POTS) offers providers mature ADSL equipment fully compliant with existing standards. Using Alcatel's fourth generation DynaMiTe ADSL chip set, Alcatel offers a high performance solution suitable for mass-market DSL deployment. Alcatel's solution combines the density, low power consumption, and network management capabilities providers need, with the ability to incrementally upgrade their systems while maintaining their existing installed base.

Alcatel - A world leader in DSL solutions

With the largest installed base of DSL lines in the world, Alcatel knows what it takes to help providers succeed - and Alcatel delivers it. Alcatel has a full range of DSL solutions for both home and business use.

Alcatel offers a cost-effective, flexible architecture that easily scales to meet the demands of a large-scale DSL services rollout. Alcatel takes an end-to-end systems approach to DSL, with proven solutions. Alcatel's DSL solutions allow for the introduction of new network services with a competitive edge.

Technical Summary

Features

• Adjustable speeds provide opportunities for multiple service offerings (maximum speed of 8 Mb/s downstream and 800 kb/s upstream)
  
• Asymmetric over a single copper pair
  
• Cost-effective broadband access
  
• Spectral compatibility with other DSL services
  
• Compliant with International Telecommunication Union (ITU) and American National Standards Institute (ANSI) standards, fully interoperable with standards-based customer premises equipment (CPE)
  
• Voice over DSL (VoDSL)-enabled

Services

• Bundled data and voice services
  
• Small business and home office Internet protocol (IP) connectivity
  
• Broadband Internet access
  
• Streaming audio, streaming video, gaming
  
• VoDSL, wide area network (WAN), bridging, routing, virtual private network (VPN), Classical IP (CIP) via appropriate Internet access device

Architecture

• Multi-standards based: - ITU-T G.994.1 (G.hs) - ANSI T1.413 Issue 2 - ITU-T G.992.1 Annex A (G.dmt) - ITU-T G.992.2 (G.Lite)
  
• High-end error correction via: - Reed-Solomon coding - Trellis coding (generates 3 db additional coding gain)
  
• Impulsive noise sources protection via programmable interleaving
  
• Guaranteed physical throughput via: - perator controlled mode - Rate adaptive mode (at start-up)
  
• Power consumption 1.6 W per port
  
• Dedicated splitter boards covering a wide range of impedances
  
• 12-port density evolving to 24/48-port
  
• 384 lines/rack including splitters, 576 lines/rack without splitters

ATM Functionality

• Data transport via ATM Adaptation Layer 5 (AAL5)
  
• Voice transport via ATM Adaptation Layer 2 (AAL2)
  
• Compliant with ITU-T G.114 and G.131 delay specifications

Management

• Element management layer (EML) and network management layer (NML) via Alcatel 5620 Network Manager (NM) - Connectivity via ATM network (ATM VP/VC)
  
• Service management layer (SML) via Alcatel 5740 Service Subscription Manager (SSM) - Interfacing with other (legacy) operations support systems (OSSs)
  
• Local management via craft terminal

Environmental

Standards

• ETS 300 019 1-1 Class 1.1, ETS 300 019 1-2 Class 2.3, ETS 300 019 1-3 Class 3.1 and 3.1E Emissions
  
• EN 300 386, referring to EN 55022 (Class A) and EN 61000 4-2, 4-3, 4-4, 4-5, 4-6 Dissipation
  
• Maximum 500 W per shelf Operating humidity
  
• 0% to 90 % noncondensing Operating temperature
  
• 0 C to 45 C (32 F to 113 F) Mean time between failure (MTBF)
  
• 37 years