Calix Adds VDSL2 Support Across Portfolio

  • Calix
  • VDSL2
LAS VEGAS, NV - Access network equipment supplier Calix announced expansions to its portfolio to support VDSL2 with bonding (using multiple telephone lines) and, in one case, vectoring (crosstalk elimination). These additions allow telcos to make substantial increases to broadband speeds in many areas where such increases would not otherwise be cost-effective, and should also allow more telcos to add or expand video services. Calix says the price point clearly justifies deploying VDSL2 instead of ADSL.

The portfolio expansions include the following:

* Two new VDSL2 line cards for the E7-2 Ethernet Service Access Platform (a one rack unit, modular chassis-based form factor), with up to 96 VDSL2 combo ports or 48 overlay ports and support for bonding and vectoring, two 10 gigabit Ethernet ports, and two ports capable of GE or 2.5 Gbps service delivery.

* A new VDSL2 combo card for the B-Series Ethernet Service Access Nodes, featuring 48 VDSL combo ports with bonding support and ADSL2+ fallback, as well as four 10 GE ports for optimal uplink capacity in a 1RU card.

With these additions, Calix now supports a wide array of advanced DSL solutions, ranging from small fixed form factor solutions to large high-density chassis, with a variety of modular cabinet retrofits and sealed nodal solutions in between. Bonding and ADSL fallback are standard across all VDSL2 solutions on the B-, C-, and E-Series platforms and nodes.

Kevin Pope, senior vice president of product development at Calix, says, "The Calix Unified Access portfolio now provides a wide variety of VDSL2 options that can deliver speeds in excess of 100 Mbps over existing copper plant. By leveraging VDSL2 solutions across the B6, C7, or E7 today, service providers can greatly enhance their broadband service offerings quickly and cost-effectively, and leverage these same platforms if required in the future to deliver advanced fiber access services."

Early customers for the new VDSL2 cards include Horizon Telcom for the E7-2 platform and Rural Telephone/Nex-Tech for the B6 platform.

The Last Stage for Copper

Calix marketing director Geoff Burke says Calix's expanded support for VDSL2 reflects the fact that this technology is now "a solution that is easily operationally implemented and provides the most capacity you can wring out of copper - and it’s the last stage in copper." After VDSL2, he says, further network upgrades will be fiber-based.

In areas where carriers have already deployed ADSL, they can substitute VDSL2 line cards and immediately enable a 13 percent speed increase for all ADSL customers by implementing a feature called packet transfer mode. If customer modems already support VDSL (many modems are dual-mode), they can be upgraded easily to much higher speeds; if new modems are required, carriers can upgrade customers to VDSL2 on a case-by-case basis - for example, if a customer orders video service. VDSL2 allows higher speeds at most distances, and also permits bonding two pairs of telephone lines together, which automatically doubles speed. Vectoring, which removes crosstalk, enables even higher speeds. Finally, by building fiber further out into the network, carriers can achieve even greater speed increases with VDSL2.

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