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VDSL2 and Vectoring

Get the most from your
copper deployments

VDSL2 and Vectoring

Get the most from your
copper deployments

What is Vectoring?

Copper pairs cause interference with each other much like the change in signal when someone touches the TV antenna. This interference, called crosstalk causes degradation in performance that can be significant especially when a cable binder is full. In the diagram below the vectored line would be roughly the equivalent to single line performance. But as you can see the Full Binder line shows the effects of crosstalk on the performance of the VDSL2 pairs.
image_vectoring_diagram1

Vectoring

Vectoring is the process of dynamically predicting crosstalk and then canceling that crosstalk much like a pair of noise canceling headphones.  This brings the VDSL2 performance back to nearly the level of what a single VDSL2 pair would achieve. 
 

Implementing Vectoring

image_VDSL_stack

Vectoring works by predicting crosstalk across the vector control group (pairs in a binder). This requires significant processing, power and therefore typically a Vector Control Processor (VCP) is required in addition to the VDSL2 line cards to perform vectoring. 

Calix solutions support multiple configurations for vectoring which ensures cost effective solutions that scale from very small to very large vector control group. 

  • Card Level Vectoring – supports vector groups up to number of pairs on any given card, best performance when all pairs in same cable binder
  • System Level Vectoring (No VCP) – E7-2 system supports 96 pair vector control groups without requiring the VCP, all processing is handled between the 2 VDSL2 line cards in the system
  • System Level Vectoring (w/ VCP) – E7-2 system supports up to 384 pair vector control groups when a VCP-384 is utilized.  A VCP-192 is also available enabling a vector control group up to 192 pairs.
Learn More about Calix E-Series
 

Learn more about VDSL Vectoring

Identify important considerations when planning a successful vectoring deployment. Download the "Vectoring to Win" white paper.
Download Whitepaper
 

 

Calix Products Supporting Vectoring

Product Description Vectoring Group without VCP Largest Vectoring Group with VCP
E7-2 VDSL2-48 VDSL2 card with integrated POTs Splitters 48 N/A
E7-2 VDSL2-48C VDSL2 card supporting integrated VoIP 48 N/A
E7-2 VDSL2-48D VDSL2 data only card 48 N/A
E7-2 VDSL2-48 r2 VDSL2 card with integrated POTs Splitters 48 384
E7-2 VDSL2-48C r2 VDSL2 card supporting integrated VoIP 96 384
E7-2 VDSL2-48D r2 VDSL2 data only card 96 384
E5-48 VDSL2 Fixed Form factor unit with integrated splitters 48 N/A
E5-48C VDSL2 Fixed Form factor unit supporting integrated VoIP 48 N/A
E3-48 Sealed VDSL2 Unit with integrated POTs splitters 48 N/A
E3-48C Sealed VDSL2 Unit with integrated POTs splitters 48 N/A
 

Related Products

E7-2 Intelligent Modular System
E3 Gfast