Noise Floor less than -145 dBm/Hz (as measured at the output of the noise injector)
Expand system as needed
Add up to 6 AWG cards (2-Port and/or 4-Port) for a maximum of 24 Ports
Employ up to 48 noise injectors using “Y” cables to split output from 1 AWGx port to 2 noise injectors
Create a wide variety of noise combinations
High degree of accuracy
Independent control of each port
Select from common crosstalk types such as ISDN, HDSL, T1, ADSL, G.SHDSL bis, SHDSL and VDSL2
Impulse noises such as REIN and SHINE
North American and European units of measure
Specify NEXT, FEXT and number of disturbers
Add in RFI and AWGN (at variable levels)
Specify impedance, sampling rate and DUT location
Graphical representation of noise PSD
Integrate with Telebyte WLS
Save custom noise files to repeat tests with ease and accuracy
User-Defined Crosstalk Feature using MATLAB (.mat) or Excel (.xls) files
Calibration through specification of injector insertion loss
Remote control via RS-232
The Telebyte Model 4901 Multi-Output Noise Simulator provides 2 to 24 independent noise channels in a convenient, 4U-high unit. The system holds up to 6 AWG cards, each of which can be configured with either 2 or 4 channels.
This powerful solution is easily expanded by adding more 2 or 4-port AWG cards and companion noise injectors. The system includes user-friendly configuration software allowing the user to select and build a wide variety of impairment models common to DSL network implementations.
Common crosstalk types available include ADSL2+, VDSL2 and many more. The user-defined crosstalk feature allows specification of a target PSD on the DSL line. Using either MATLAB (.mat) or Excel (.xls) files, the user supplies the target PSD in dBm/Hz and corresponding frequency values.
This feature produces crosstalk with the desired PSD on the DSL line and, optionally, any combination of RFI tones. No additional PC required.