- Bandwidth 20 kHz to 30 MHz
- Crest Factor greater than 5
- 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
- One-Year Warranty/Calibration.
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.