Impairments identification module and method

An impairments identification module configured to identify impairments of telecommunications lines of a binder, wherein said impairments identification module comprises:

• a multi-mode group of modules including,
• at least one differential mode module for a respective line of said bundle configured to apply an input signal in a differential mode and adapted to measure an echo signal in a differential mode;
• and
• at least one phantom mode module for a respective pair of lines of said bundle configured to apply such input signal in a phantom mode and adapted to measure such echo signal in a phantom mode;
• and
• control means for controlling, during execution of one cycle of Single-Ended Line Testing SELT on said lines of said bundle, application of said input signal to a first module of said modules of said multi-mode group of modules and for controlling measurement from a second module of said modules of said multi-mode group of modules, said second module being different from said first module;
• and
• a processing unit configured to analyze said measured echo signal in view of said input signal for deriving therefrom impairments.