Profile 35b Testing Solutions

The Model 4902 Universal G.fast Noise Generator is available in two versions – portable and rack-mountable. The portable unit provides 2 to 16 independent Arbitrary Waveform Generator (AWG) outputs and includes a keyboard and built-in display. The higher-density version is rack-mountable and may be configured for 2 to 24 independent AWG outputs. User-friendly configuration software allows the user to select and build impairment models common to DSL network implementations using ADSL2 , VDSL2, VDSL2 vectoring and G.fast. A generous assortment of custom crosstalk as well as impulse noises (e.g., REIN, SHINE and PEIN) can be created. It can also generate a wide variety of interferences above 30 MHz that may impact G.fast deployments. These include background Gaussian noise, high frequency impulse noise (PEIN, SHINE), FM radio, Broadcast TV, Spark Plug Ignition noise, PLC noise, Reverse Power Feed noise and more. In addition, user-defined files in several formats (such as MATLAB. CSV and Excel) may be imported. Optional noise modules automatically setup standards-based testing for TR-114, TR-105, TR-115, TR-100 and more.  The 4902 also works with an optional stand-alone noise injector, the Model 4902-D4, for injecting independent differential mode noise on 4 channels of the CO (or CPE) side of the loop or the VxT-N48 for injecting noises up to 30 MHz over 48 channels (independent or distributed). Read more about Model 4902 Universal Noise Generator