Title:
10GBASE-Tトランシーバのためのケーブル診断
Document Type and Number:
Japanese Patent JP2007528152
Kind Code:
A
Abstract:
A 10GBASE-T transceiver that is capable of performing cable diagnostics. The transceiver is a physical layer device (PHY) that has four transceiver sections. Each section includes an input path and an output path. The input path generally includes a receiver, an analog-to-digital converter, a far end cross talk/near end cross talk canceller section, an alien noise canceller section, and an equalizer section. The output path includes a coding and preconditioning section, a digital-to-analog converter, and a transmitter. A substantial savings can be realized by utilizing the same elements that perform data communication to perform cable diagnostics. The diagnostics might occur before a link is formed or after a link is formed and may be based on test signals only or on data signals or communications. A first PHY might perform diagnostics alone or in combination with a second PHY which is in communication with the first as a link partner.
Inventors:
Barass Hugh
Application Number:
JP2006552327A
Publication Date:
October 04, 2007
Filing Date:
February 07, 2005
Export Citation:
Assignee:
Cisco Technology Incorporated
International Classes:
H04L12/56; H04B3/02; H04B3/04; H04B3/32; H04B3/46; H04L12/413; H04L69/40
Attorney, Agent or Firm:
Masayuki Masabayashi