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Model 4901 Multi-Output Noise Simulator

In Australia Phone: (03) 9023 0189

International Phone: +613 9023 0189

In Australia Fax: (03) 9700 0583

International Fax: +613 9700 0583

General Enquiry: info@telecomtest.com.au

Accounts: accounts@telecomtest.com.au

To contact us:

· 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.

 

Related Technologies: noise generator / interference simulator / adsl2+ / vdsl2 / tr-048 / tr-067 / tr-100 / wt-114 / crosstalk / noise injector / noise impairment / impulse noise / noise port / rein / shine / ice / xdsl / awgn

 

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.

Model 4901

manual | datasheet

 Home

 Chassis 3-Slot

 4901 Simulator

 Telebyte Broadband

 Chassis 16-Slot

 Line Modules

 4801 Simulator

Standards and Protocols Included in Base System  

Standard

Protocols

Mode

Mask

Rate

ADSL, ADSL2, ADSL2+

G.992.1 Annex A, B
G.992.2 Annex A
G.992.3 Annex A, B, I, J, L, M
G.992.4 Annex A, I
G.992.5 Annex A, B, I, J, M

EC
FDM

Upstream:

G.992.3 Annex J (1-9)
G.992.3 Annex L (1-2)
G.992.3 Annex M (1-9)
G.992.5 Annex J (1-9)
G.992.5 Annex M (1-9)

 

G.SHDSL bis

 

 

 

 

HDSL

 

 

 

 

ISDN

 

 

 

 

SHDSL

G.991.2 Annex A
G.991.2 Annex B

 

PSD:

Symmetric
Asymmetric

 

 

Annex A or B/Symmetric: 256, 512, 768, 1024, 1280, 1536, 2048, 2304 kbps

Annex B/Asymmetric: 768, 1536 kbps

Annex B/Asymmetric: 2048, 2304 kbps

T1

 

 

 

 

 

VDSL2

G.993.2 Annex A
G.993.2 Annex B
G.993.2 Annex C

Operating:

POTS All-digital

G.993.2 Annex A (mask 1-9)

G.993.2 Annex B (mask 1-10)

 

ETSI A

 

 

 

 

ETSI B

 

 

 

 

Euro-K

 

 

 

 

Impulse Noise Included in the Base System

REIN

SHINE

ICE

 Ordering Information

Ordering Information

Base System:

4901-PC

Telebyte 4U-High Industrial Computer

4901-NS

Universal Noise Generation Software

Choice of:

4901-AWG2 OR

4901-AWG4

 

2-Port AWG Card

4-Port AWG Card

4901-D1

Differential Mode Noise Injector

4901-D1-PS

Power Supply for 4901-D1 (supports up to 4, 4901-D1’s)

Options:

4901-AWG2

2-Port AWG Card

4901-AWG4

4-Port AWG Card

4901-D1

Differential Mode Noise Injector

4901-RM-D1

Rack Mount Kit for 4901-D1 (max 4, 4901-D1’s)

4901-N5

Noise Module for TR-048* (coming soon)

4901-N6

Noise Module for TR-067* (coming soon)

4901-N10

Noise Module for TR-100*

4901-N11

Noise Module for WT-114* (coming soon)

4901-N12

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

4901-YC

“Y” Cable Splits Output of (1) AWGx Port to (2) Noise Injectors

* Noise module requires minimum of (2) 4901-AWGx cards

Multi-Output Noise Simulator Specifications**

Bandwidth

AWGN: 20 kHz to 30 MHz

Interference Profile Accuracy

≤ 0.5 dB mean absolute error (MAE) for all Power Spectral Densities of Crosstalks

AWGN Crest Factor

≥ 5

AWGN Gap

< 10%

Output Impedance

50Ω unbalanced

Dynamic Range

95dB(-90 dBm to +5 dBm)

Remote Commands

RS-232

Included Software

Telebyte Multi-Output Noise Simulator Software

Power supply

AC 90 V to 264 V, 47 to 63 Hz

Operating Temperature Range

0 to 50 º C

Storage and Transport

-20 to 70 º C

Operating Relative Humidity

Maximum 80% for up to 31° C, decreasing linearly to 50% at 40°C

Mechanical Dimensions

4U-High Rack-Mountable Chassis

Noise Injector Specifications

Bandwidth

20 kHz to 30 MHz

Output Impedance

4kΩ Minimum (20 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 4901 Multi-Output Noise Simulator, RJ45 (2) Female Connectors for Loop Simulator (external cable provided) and for the modem.

Operating Temperature Range

0 to 50 º C

Operating Relative Humidity

Maximum 80% for up to 31° C, decreasing linearly to 50% at 40°C

Mechanical Dimensions

2.6” W x 1.4” H x 4.7” D

Power supply

AC 90 V to 264 V, 47 to 63 Hz, 10 W (supports 1-4 Noise Injectors)

Accessories

1U-High Rack Mount Kit accommodates up to 4 units. Sold separately.

* 100Ω input used when two noise injectors are combined by a “Y” cable to form a common input

** The generation of Crosstalk/RFI noises and Impulse noises must be carried out on different cards