METHOD FOR TESTING VDSL LOOPS

摘要

A test procedure for a VDSL distribution loop utilizes loop prequalification based on information stored in a network database (100) in combination with field tests that are performed to confirm minimum performance capabilities of prequalified loops. During qualification, a VDSL test signal is sent on the loop, and SNR and bit error ratios are measured for desired upstream and downstream transmission rates. These measurements are compared (132) to threshold values to verify performance of the loop for VDSL use. Thus, a cost effective test process is provided which allows accurate test data collection for sensitive VDSL distribution loops without the need for any pre-provisioning of the loop, and to allow for validation of the loop configuration database (136).