Modular unit for stimulating performance in multi-lines digital subscriber line (xDSL) system

摘要

According to embodiments of the present invention, a multi-lines cable simulator is provided which is able to simulate also crosstalk between lines. The multi-lines cable simulator is comprised in a modular unit configured to simulate increased number of lines by means adding further modular units. According to further embodiments, the modular unit is configured to also simulate increased line length by means of adding further modular units.

主权项

1. A modular unit for simulating performance of a multi-lines cable between a Central Office (CO) and several Customer Premises Equipments (CPEs); the modular unit comprises:
a first set of n connectors and a second set of n connectors configured to connect in a first dimension the modular unit between the CO and the CPEs; a first crosstalk simulator configured to simulate crosstalk within a first bundle of n number of lines and a first length simulator configured to simulate a first predefined line length; and a third set of n connectors configured to connect the modular unit with a second modular unit in a second dimension, wherein the second modular unit comprises:
a second crosstalk simulator configured to simulate crosstalk within a second bundle of n number of lines; anda second length simulator, wherein the second length simulator is configured to simulate a second predefined line length, wherein the first crosstalk simulator is further configured to simulate crosstalk within the first bundle of n number of lines by taking into account crosstalk from the second bundle of n number of lines when the modular unit is connected to the second modular unit, wherein the second crosstalk simulator is further configured to simulate crosstalk within the second bundle of n number of lines by taking into account crosstalk from the first bundle of n number of lines when the second modular unit is connected to the modular unit, and wherein the first and second crosstalk simulators comprise a line connector for each line of the first bundle of n number of lines and the second bundle of n number of lines, each of the line connectors configured to receive alien noise injection.