Home Page ContentPress Releases KEYMILE presents vectoring controller card for MileGate

KEYMILE presents vectoring controller card for MileGate

by david.nunes

KEYMILE presents vectoring controller card for MileGate

Hanover, December 11, 2012 – The new vectoring controller card for KEYMILE’s multi-service access platform MileGate supports system-level vectoring. It eliminates crosstalk which is a limiting factor in VDSL2 services. The purpose of vectoring is to increase the possible data rate respectively the transmission range.

Over the past few years, the amount of VDSL2 connections has increased rapidly. However, with rising numbers of subscribers in one cable bundle, data rates of 100 Mbps achievable with VDSL2 are quickly merely theoretical because of the interference that occurs. With every new customer, network operators find it harder and harder to offer a reliable high data rate. As a result, the technical advantage of VDSL2 transmission can no longer be harnessed.

Without vectoring, the 100 Mbps of the VDSL2 standard are only possible when lines are very short and without any other subscribers in the bundle. Responsible for the interference is crosstalk between each of the cables in a bundle (or more precisely far-end crosstalk FEXT), restricting the range and data rate. KEYMILE is a leading technology supplier of communications solutions for access and transmission systems. Its new vectoring controller card for its multi-service access platform MileGate successfully removes most of the interference in the cable bundle. The data rate rises and the variation of attainable data rates in the cable is decreased. Therefore, even with many subscribers and when lines are 400 m long, network operators can reach top bandwidths.

In order to obtain a good result in eliminating interference, all VDSL2 signals within a cable bundle have to be incorporated into the vectoring process in real time. This is made possible by the system level vectoring approach which integrates several VDSL2 cards into vectoring. KEYMILE’s vectoring card allows up to four 48-port VDSL2 cards to be connected with one vectoring controller card. Consequently, with one MileGate subrack up to 768 VDSL2 interfaces can be provided which are integrated into the vectoring process.

KEYMILE’s 48-port VDSL2 cards for MileGate are prepared for system level vectoring. 1.5m of these ports are already deployed and can be connected with the vectoring controller card, which will be available by beginning of 2013.


KEYMILE is a leading supplier of cutting-edge technology for communications solutions in access and transmission systems. The flexible and robust IP-based multi-service access platforms allow telecommunications providers to supply a variety of voice and data services via copper wire and optical fibre. Simultaneous availability of IP/Ethernet and TDM technology guarantees smooth migration to the Next Generation Network. Keymile systems are used for reliable data transmission in mission-critical areas of telecommunications networks used by railway companies and energy suppliers, as well as in mobile and professional mobile radio networks. The company has major business bases in Germany and Switzerland, as well as subsidiaries and partners worldwide. It has installed systems in more than 100 countries. For more information visit www.keymile.com.

Related Articles

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More