Ingeniare. Revista chilena de ingeniería
versión On-line ISSN 0718-3305
MEDINA CARRASCO, Mario y CARRASCO STERNSDORFF, Andrés. A DIAGNOSTIC TOOL FOR ASYMMETRIC DIGITAL SUBSCRIBER LINE LINKS. Ingeniare. Rev. chil. ing. [online]. 2009, vol.17, n.1, pp. 121-128. ISSN 0718-3305. doi: 10.4067/S0718-33052009000100013.
We present the CuLineAnalyzer software, a diagnostic tool for ADSL links that leverages the DMT subchannel signal-to-noise ratio (SNR) measurements made by the ATUs themselves. These measurements are read via remote access and are logged into a central server, from which they can be displayed under operator control, so the pertinent diagnosis can be performed. An important strength of this tool is that it can store measurements performed at different times for long periods, so as to detect sporadic conditions, spurious errors and line condition trends. This tool has been used successfully to monitor a bank of Alcatel SpeedTouch ADSL modems. The tool's modular design and parametric operation makes it easy to adapt it to new ADSL modem and DSLAM models.
Palabras clave : ADSL; diagnostic tools; signal-to-noise ratio.