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Cisco Multiflex Trunk Dedicated Echo Cancellation Module

Модуль эхоподавления (MFT ECAN)
Артикул (SKU): EC-MFT-64
Цена по запросу
Cisco

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Описание товара

Подробности

Cisco® Multiflex Trunk Dedicated Echo Cancellation (MFT ECAN) Modules are dedicated resources for the Cisco Enhanced ITU-T G.168 ECAN feature, providing robust echo cancellation performance for demanding network environments. The modules are daughter cards that attach to Cisco Second-generation Multiflex Trunk Voice/WAN Interface Cards (MFT VWIC2 cards). The dedicated ECAN modules are available in 32- and 64-channel configurations, which match the requirements of the 1- and 2-port T1/E1 MFT VWIC2s, respectively.

 

  • Investment protection through a state-of-the-art echo cancellation feature
    – Enhanced ITU-T G.168 ECAN feature complies with and exceeds the performance requirements specified in the ITU-T Recommendation G.168 Digital Network Echo Cancellers (2000) standard
    – Provides future echo cancellation enhancement capability through Cisco IOS® Software upgrades
  • Increased echo cancellation effectiveness by providing capabilities and controls
    – Provides control of the echo canceller coverage through the size of the echo cancellation buffer, ranging from 8 to 64 ms (128 ms of echo cancellation coverage requires dedicated ECAN module)
    – Configures the worst-case echo return loss (ERL), ranging from 0 to 6 dB
    – Provides control over echo cancellation convergence, enabling faster convergence for multiple echo reflectors and improved double-talk detection
    – Provides control for enabling and disabling the nonlinear processor (NLP), which replaces the residual echo at the output of the echo canceller with comfort noise based on the actual background noise of the voice path
  • Improved network manageability by providing various echo cancellation performance metrics and testing capabilities
    – Reports various metrics, including combined echo return loss (ACOM), ERL, and worst-case echo return loss
    – Reports statistics for location of the largest reflector (tail) and the internal state of the G.168 ECAN feature
    – Provides test-mode support for manually freezing, thawing, and clearing the echo canceller registers

Additional benefits of the Cisco enhanced ITU-T G.168 ECAN feature when used with the Cisco dedicated ECAN modules include:

  • Additional echo cancellation effectiveness through extended capabilities and features
    – Control of the echo canceller is provided through the size of the echo cancellation buffer, ranging from 8 to 128 ms
    – Additional processing and memory resources help ensure robust echo canceller coverage independent from the echo canceller configuration or the demand placed on the general voice DSP resources

Дополнительная информация

Product Number

Product Description

Recommended ECAN Module

VWIC2-1MFT-T1/E1

1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-32

VWIC2-2MFT-T1/E1

2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-64

VWIC2-1MFT-G703

1-Port G.703 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-32

VWIC2-2MFT-G703

2-Port G.703 Multiflex Trunk Voice/WAN Interface Card
EC-MFT-64

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