Digital subscriber line access multiplexer for use with ethernet over VDSL transport facility
US6829252B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2000 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/40136
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital subscriber line access multiplexer (DSLAM) adapted for use with an Ethernet over Very High Speed Digital Subscriber Line (VDSL) transport facility. The DSLAM connects to a plurality of CPE devices on one end and to a high speed Ethernet link on the other. The DSLAM is adapted to receive HDLC protocol formatted VDSL frames, extract Ethernet frames therefrom and generate standard Ethernet signals for transmission overran Ethernet connection. Standard Ethernet frames are received from a Fast Ethernet input signal and encapsulated in HDLC frames for transmission over the VDSL facility to a particular CPE. The voice signal from a conventional telephone set is combined with the VDSL data signal. The combined signal is split at the DLSAM into separate voice and data signals. The Ethernet frame data is extracted from the HDLC frames and input to the Ethernet switch. The voice signal is forwarded to a conventional PBX.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.