Telebyte Model 4902 G.fast Universal Noise Generator

Model 4902 Gfast universal noise generator

Main Features

G.hn Access Wave-2 & Gfast Testing

Bandwidth 10 kHz to 300MHz

Suitable for wide range of applications including VDSL2 Vectoring and G.fast testing

Crest Factor greater than 5

High degree of accuracy

Noise Floor below -166dBm/Hz (when using low noise mode injector)

Expandable, modular design

High-density version holds up to 6 (2 or 4-port) AWG cards for a maximum of 24 AWG outputs

Portable version holds up to 4 (2 or 4-port) AWG cards for a maximum of 16 AWG outputs

Inject crosstalk and impulse noise combined

Independent control of each AWG output

Select from common crosstalk types such as ADSL, VDSL2, and G.fast

Impulse noises such as REIN, SHINE, PEIN, and Switching Power Supply noise

Specify NEXT, FEXT and number of disturbers

Add in RFI and AWGN (at variable levels)

Specify impedance, sampling rate and DUT location

Optional Noise Modules setup and run all tests in standard automatically

Design custom loops with Loop Configuration Editor

Save custom noise files or entire configurations to repeat tests with ease and accuracy

Import MATLAB (.mat), CSV, or Excel (.xls) noise files

Remote control via Ethernet

Adjust Amplitude of Crosstalk and Impulse noise

G.fast Specific Noise

Background Gaussian Noise (Piecewise Flat, Colored)

High Frequency Impulse Noise (PEIN, SHINE)

PLC Noise

RFI (FM, Broadcast TV)

Spark Plug Ignition Noise

Reverse Power Feed Noise Download pdf

product overview

-20 kHz to 300 MHz Noise Generator for Realistic G.hn Wave-2 & Gfast Testing

-Up to 24 Independent Noise Ports

-AWGN Dynamic Range-90 dBm/Hz to -160 dBm/Hz in 1dB steps (when using low noise mode injector)

Gfast technology promises to bring a wealth of new opportunities to Service Providers as well as manufacturers of DPUs, CPE Modems and Chipsets. This exciting new technology allows for a more efficient use of existing copper infrastructure by utilizing the spectrum above 30 MHz and by cancelling the crosstalk between pairs within a cable. This increases data rates far beyond current levels, making bandwidth-intensive applications such as IPTV and Triple Play available in many areas where it was not possible before.

The Model 4902 Universal Gfast 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 Gfast. 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 Gfast deployments. These include background Gaussian noise, high frequency impulse noise from the AC electrical wiring (REIN) and other types of impulse noise (PEIN, SHINE & WHINE), 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.

Used by the UNH-IOL (University of New Hampshire Interoperability Laboratory) for Broadband Forum Gfast Certification Program testing.

The Model 4902-D4-120-TPD provides four channels of independent differential mode noise injection.

Model 4902-2-300-COAX 2-Channel 300 MHz COAX Noise Injector

Model 4902-2-300L-TPD 2-Channel Differential Mode Noise Injector for twisted pair with low noise mode

Ordering Options

Model Number Description

4902-Portable Telebyte Portable computer w/built-in display & keyboard.
Includes Noise Generation Software.
Accepts 1-4, 4902-AWGx cards.

4902-HD Telebyte High-Density, rack-mountable computer.
Includes Noise Generation Software.
Accepts 1-6, 4902-AWGx cards.

4902-AWG2-300 2-Port AWG Card - 600 MS/s, supports 1 kHz to 300MHZ

4902-AWG4-300 4-Port AWG Card - 600 MS/s, supports 1 kHz to 300MHZ

4902-AWG2-30 2-Port AWG Card – 60 MS/s, supports 1 kHz to 30 MHz

4902-AWG4-30 4-Port AWG Card – 60 MS/s, supports 1 kHz to 30 MHz

4902-D4-120 4-Channel Differential Mode Noise Injector (10 kHz to 120 MHz)

4902-2-300L-TPD 2-Channel Differential Mode Noise Injector (20 kHz to 300 MHz) for Twisted Pair Cable. Interface is CAT6 RJ45 Connector. Includes low noise mode.

4902-2-300-COAX 2-Channel Coax Cable Noise Injector (20 kHz to 300 MHz) for Coaxial Cable. Interface is Coax F-Type Connector

VxT-N48 48-Channel AWGN Generator/Injector (20 kHz to 30 MHz)

4901-D1-Micro
1-Channel Differential Mode Noise Injector (1 kHz to 30 MHz) Plus Micro Interrupts

4902-N6 Optional Noise Module for TR-067

4902-N10 Optional Noise Module for TR-100

4902-N11 Optional Noise Module for TR-114

4902-N12 Optional Japanese Noise Library – Including TCM-ISDN Noise Files, SHDSL NTT Noise Files; Half, Single & Double ADSL Disturbers NTT Noise Files; 3-Band, 4-Band & 6-Band VDSL NTT Noise Files

4902-N16 Optional Noise Module for TR-105

4902-N17 Optional Noise Module for TR-115

4902-N18 Optional Noise Module for G.shdsl

4902-N21 Optional Noise Module for G.fast IR-337

4902-N22 Optional Noise Module for Gfast WT-380

Specifications

4902-Portable Specifications

Remote Commands Telnet

Included Software
Telebyte Universal G.fast Noise Generator Software

Power supply
AC 90 V to 264 V, 47 to 63 Hz

Operating Temperature Range 0 to 50 º C

Operating Relative Humidity 5% - 95% non-condensing

Mechanical Dimensions DxWxH: 9.5" D x 13.5" W x 17.5" H

Weight
32 lbs

Connectors 10 USB 3.0 Ports, 4 USB 2.0 Ports (2 front), 2 RJ-45 Gigabit LAN

Display
Integrated 17.3-in WUXGA+ (1920 x 1080) display

4902-HD Specifications

Remote Commands Telnet

Included Software
Telebyte Universal G.fast Noise Generator Software

Power supply
AC 90 V to 264 V, 47 to 63 Hz

Operating Temperature Range 0 to 50 º C

Operating Relative Humidity
5% - 95% non-condensing

Mechanical Dimensions DxWxH: 19.5" D x 16.8" W x 7.0" H

Weight
32 lbs

Connectors
10 USB 3.0 Ports, 2 eSATA Ports, 2 RJ-45 Gigabit LAN

4902-AWGx-30 Specifications

Bandwidth
1 kHz to 30 MHz

Noise Outputs
4902-AWG2-30: 2
4902-AWG4-30: 4

Interference Profile Accuracy
≤ 0.5 dB mean absolute error (MAE) for Crosstalk PSD

AWGN Crest Factor
> 5

AWGN Gap
< 10%

Output Impedance
50Ω unbalanced

SMB Connectors
4902-AWG2-30: 2
4902-AWG4-30: 4

4902-AWGx-300 Specifications

Bandwidth
1 kHz to 300 MHz

Noise Outputs
4902-AWG2-300: 2
4902-AWG4-300: 4

Interference Profile Accuracy
≤ 0.5 dB mean absolute error (MAE) for Crosstalk PSD

AWGN Crest Factor
> 5

AWGN Gap
< 10%

Output Impedance
50Ω unbalanced

SMA Connectors
4902-AWG2-300: 2
4902-AWG4-300: 4

4902-D4-120 Noise Injector Specifications

Bandwidth 20 kHz to 120 MHz continuous frequency response of signal path

Injection Type Differential Mode

Insertion Loss of Noise Injection Path Differential Mode 0 dB ± 0.5dB

Maximum RMS Output +5 dBm into 50 Ω

Crest Factor Greater than 5

Noise Floor Below -150 dBm/Hz as measured at the output of the noise injector

Connectors SMA: (2) Female Connectors per channel for Independent Differential Mode noise from 4902-Portable or 4902-HD

8 Cat6 RJ-45 Connectors on front (2 Input/Outputs for each channel)

Micro Interruptions Location: On any single channel

Method: Type-1, Type-2, or Type-3 as defined in
TR-249 Issue 1

Interrupt Time: 5ms to 100ms in 1-ms increments

4901-D1-Micro Specifications

Bandwidth
1 kHz to 30 MHz

Input Impedance
50Ω unbalanced (100Ω unbalanced)

Output Mode
Differential, balanced

Noise Floor
Below –145 dBm/Hz as measured at the output of the noise injector

Insertion Loss
13.0/35 dB ± 0.5 dB

Connectors
SMB Female Connector for 4902-Portable or 4902-HD, RJ45 (2) Female Connectors for Loop Simulator (external cable provided) and for the modem.

Micro Interruptions
·         Method: Type-1 as defined in TR-249 Issue 1
·         Interrupt Time: 1ms to 250ms in 1-ms increments

4902-2-300-COAX Specifications

Bandwidth 20 kHz to 300 MHz continuous frequency response of signal path

Injection Type Single Ended

Insertion Loss of Noise Injection Path 0 dB ± 0.5dB

Maximum RMS Output +5 dBm

Crest Factor Greater than 5

Noise Floor Below -150 dBm/Hz as measured at the output of the noise injector

Connectors SMA: (3) Female Connectors per channel for Independent Differential Mode noise from 4902-Portable or 4902-HD;

4 F-Type Coax Connectors on front (2 Input/Outputs for each channel)

4902-2-300L-TPD Specifications

Bandwidth 20 kHz to 300 MHz continuous frequency response of signal path

Injection Type Differential Mode

Insertion Loss of Noise Injection Path Differential Mode 0 dB ± 0.5dB

Maximum RMS Output +5 dBm

Noise Floor Below -166 dBm/Hz as measured at the output of the noise injector (with the low noise mode enabled)

AWGN Dynamic Range -90 dBm/Hz to -160 dBm/Hz in 1dB steps

Connectors -SMA: (3) Female Connectors per channel for Independent Differential Mode noise from 4902-Portable or 4902-HD;

-4 Cat6 RJ-45 Connectors on front (2 Input/Outputs for each channel)


Specifications are subject to change without notice. Made in USA.

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Model Number	Description
4902-Portable	Telebyte Portable computer w/built-in display & keyboard. Includes Noise Generation Software. Accepts 1-4, 4902-AWGx cards.
4902-HD	Telebyte High-Density, rack-mountable computer. Includes Noise Generation Software. Accepts 1-6, 4902-AWGx cards.
4902-AWG2-300	2-Port AWG Card - 600 MS/s, supports 1 kHz to 300MHZ
4902-AWG4-300	4-Port AWG Card - 600 MS/s, supports 1 kHz to 300MHZ
4902-AWG2-30	2-Port AWG Card – 60 MS/s, supports 1 kHz to 30 MHz
4902-AWG4-30	4-Port AWG Card – 60 MS/s, supports 1 kHz to 30 MHz
4902-D4-120	4-Channel Differential Mode Noise Injector (10 kHz to 120 MHz)
4902-2-300L-TPD	2-Channel Differential Mode Noise Injector (20 kHz to 300 MHz) for Twisted Pair Cable. Interface is CAT6 RJ45 Connector. Includes low noise mode.
4902-2-300-COAX	2-Channel Coax Cable Noise Injector (20 kHz to 300 MHz) for Coaxial Cable. Interface is Coax F-Type Connector
VxT-N48	48-Channel AWGN Generator/Injector (20 kHz to 30 MHz)
4901-D1-Micro	1-Channel Differential Mode Noise Injector (1 kHz to 30 MHz) Plus Micro Interrupts
4902-N6	Optional Noise Module for TR-067
4902-N10	Optional Noise Module for TR-100
4902-N11	Optional Noise Module for TR-114
4902-N12	Optional Japanese Noise Library – Including TCM-ISDN Noise Files, SHDSL NTT Noise Files; Half, Single & Double ADSL Disturbers NTT Noise Files; 3-Band, 4-Band & 6-Band VDSL NTT Noise Files
4902-N16	Optional Noise Module for TR-105
4902-N17	Optional Noise Module for TR-115
4902-N18	Optional Noise Module for G.shdsl
4902-N21	Optional Noise Module for G.fast IR-337
4902-N22	Optional Noise Module for Gfast WT-380

4902-Portable Specifications
Remote Commands	Telnet
Included Software	Telebyte Universal G.fast Noise Generator Software
Power supply	AC 90 V to 264 V, 47 to 63 Hz
Operating Temperature Range	0 to 50 º C
Operating Relative Humidity	5% - 95% non-condensing
Mechanical Dimensions	DxWxH: 9.5" D x 13.5" W x 17.5" H
Weight	32 lbs
Connectors	10 USB 3.0 Ports, 4 USB 2.0 Ports (2 front), 2 RJ-45 Gigabit LAN
Display	Integrated 17.3-in WUXGA+ (1920 x 1080) display

4902-HD Specifications
Remote Commands	Telnet
Included Software	Telebyte Universal G.fast Noise Generator Software
Power supply	AC 90 V to 264 V, 47 to 63 Hz
Operating Temperature Range	0 to 50 º C
Operating Relative Humidity	5% - 95% non-condensing
Mechanical Dimensions	DxWxH: 19.5" D x 16.8" W x 7.0" H
Weight	32 lbs
Connectors	10 USB 3.0 Ports, 2 eSATA Ports, 2 RJ-45 Gigabit LAN

4902-AWGx-30 Specifications
Bandwidth	1 kHz to 30 MHz
Noise Outputs	4902-AWG2-30: 2 4902-AWG4-30: 4
Interference Profile Accuracy	≤ 0.5 dB mean absolute error (MAE) for Crosstalk PSD
AWGN Crest Factor	> 5
AWGN Gap	< 10%
Output Impedance	50Ω unbalanced
SMB Connectors	4902-AWG2-30: 2 4902-AWG4-30: 4

4902-AWGx-300 Specifications
Bandwidth	1 kHz to 300 MHz
Noise Outputs	4902-AWG2-300: 2 4902-AWG4-300: 4
Interference Profile Accuracy	≤ 0.5 dB mean absolute error (MAE) for Crosstalk PSD
AWGN Crest Factor	> 5
AWGN Gap	< 10%
Output Impedance	50Ω unbalanced
SMA Connectors	4902-AWG2-300: 2 4902-AWG4-300: 4

4902-D4-120 Noise Injector Specifications
Bandwidth	20 kHz to 120 MHz continuous frequency response of signal path
Injection Type	Differential Mode
Insertion Loss of Noise Injection Path	Differential Mode 0 dB ± 0.5dB
Maximum RMS Output	+5 dBm into 50 Ω
Crest Factor	Greater than 5
Noise Floor	Below -150 dBm/Hz as measured at the output of the noise injector
Connectors	SMA: (2) Female Connectors per channel for Independent Differential Mode noise from 4902-Portable or 4902-HD 8 Cat6 RJ-45 Connectors on front (2 Input/Outputs for each channel)
Micro Interruptions	Location: On any single channel Method: Type-1, Type-2, or Type-3 as defined in TR-249 Issue 1 Interrupt Time: 5ms to 100ms in 1-ms increments

4901-D1-Micro Specifications
Bandwidth	1 kHz to 30 MHz
Input Impedance	50Ω unbalanced (100Ω unbalanced)
Output Mode	Differential, balanced
Noise Floor	Below –145 dBm/Hz as measured at the output of the noise injector
Insertion Loss	13.0/35 dB ± 0.5 dB
Connectors	SMB Female Connector for 4902-Portable or 4902-HD, RJ45 (2) Female Connectors for Loop Simulator (external cable provided) and for the modem.
Micro Interruptions	· Method: Type-1 as defined in TR-249 Issue 1 · Interrupt Time: 1ms to 250ms in 1-ms increments
4902-2-300-COAX Specifications
Bandwidth	20 kHz to 300 MHz continuous frequency response of signal path
Injection Type	Single Ended
Insertion Loss of Noise Injection Path	0 dB ± 0.5dB
Maximum RMS Output	+5 dBm
Crest Factor	Greater than 5
Noise Floor	Below -150 dBm/Hz as measured at the output of the noise injector
Connectors	SMA: (3) Female Connectors per channel for Independent Differential Mode noise from 4902-Portable or 4902-HD; 4 F-Type Coax Connectors on front (2 Input/Outputs for each channel)
4902-2-300L-TPD Specifications
Bandwidth	20 kHz to 300 MHz continuous frequency response of signal path
Injection Type	Differential Mode
Insertion Loss of Noise Injection Path	Differential Mode 0 dB ± 0.5dB
Maximum RMS Output	+5 dBm
Noise Floor	Below -166 dBm/Hz as measured at the output of the noise injector (with the low noise mode enabled)
AWGN Dynamic Range	-90 dBm/Hz to -160 dBm/Hz in 1dB steps
Connectors	-SMA: (3) Female Connectors per channel for Independent Differential Mode noise from 4902-Portable or 4902-HD; -4 Cat6 RJ-45 Connectors on front (2 Input/Outputs for each channel)