| 摘要 |
<p>The present invention refers to a method (57) and a device (25, 31, 43; 39) for testing subscriber premises equipment (21) comprising a DSL modem (19) coupled with a telecommunication line (13). In order to provide a device (25, 31, 43; 39) and method (57) that allows to detect an incorrectly connected splitter (34) without requiring any manual intervention from a service provider, it is suggested that the method (57) comprise determining (71, 95) at least one value (ADS, AUS; P) that depends on an attenuation of a signal transmitted over the telecommunication line (13) to the DSL modem (19) or received over the telecommunication line (13) from the DSL modem (19); detecting (77, 93; 105, 109, 115) depending on the value (ADS, AUS; P) that the DSL modem (19) is coupled with the telecommunication line (13) via a DSL splitter (34) in such a way that the DSL modem (19) is connected to a different connector (52) of the DSL splitter (34) than a modem connector (49) of the DSL splitter (34), which modem connector (49) is intended for being connected with the DSL modem (19); determining a loop length value (1) of the telecommunication line (13); and determining (91; 113) a threshold (THDS(l), THUS(l); THA(l)) depending on the loop length value (1), wherein the detecting (93; 115) is based on comparing (93, 94,115) the threshold (THDS(l), THUS(l); THA(l)) with the value (ADS, AUS; P).</p> |
