Telebyte Telebyte VxT-48

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

 Bringing products and services based on Vectoring technology to the marketplace requires repeatable testing of multiple loops. Until now, breakthroughs in

this technology have not been matched by innovations in commercially available testing solutions. The only choices have been Cable Farms where correlating test results from site to site is problematic.

Telebyte's xTalk Emulator is the world's first commercially available solution for physical layer testing of equipment that utilizes Vectoring technology. The VxT-48 offers repeatable and configurable Vectoring performance testing of up to 48 independent loops in one complete unit. Multiple units are ideal for parallel testing to ensure consistent performance from site to site. Our groundbreaking design emulates FEXT between loops 2, 4 and 6 of WT-249 (Revision 05).

• Suitable for VDSL2 Vectoring test cases
• 48 independent loops
• FEXT emulation between all loops
• Simulates WT-249 (Rev 05) Loops 2, 4, 6
• Symmetrical crosstalk matrix
• Micro-Interruptions
• Efficient automation
• Repeatabletesting
• Ideal for parallel testing
• Remotecontrol via Ethernet, RS-232, USB or User-friendly GUI
• One-YearWarranty/Calibration.

The Telebyte Model 4901 Multi-Output Noise Simulator provides 2 to 32 independent noise channels in a powerful, 4U-high industrial PC.

The modular system holds up to 8 (2 or 4-port) 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.

Line (SHDSL) Transceivers.

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Telebyte 458-3SLB Test Chassis

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The Model 458-SM-2-16 Transparent Switching Module is a transparent, electrically neutral, multiplexing/demultiplexing device that allows up to sixteen incoming lines to share (be directed to) up to two independent local loop simulator output channels, or two incoming lines to share (be directed to) up to sixteen independent local loop simulator output channels. The user may select one or two of the inputs (or outputs) out of sixteen, with the unselected paths being terminated with 100 ohms.

This powerful local loop simulator is plugged into our Model 458-3SLB (3-Slot) or 458-CC-16/458-CM (16 Slot) rack-mounted chassis where settings are controlled by RS-232, Ethernet or IEEE-488(GPIB). The modular design of Telebyte's products allows the 458-SM-2-16 to be combined with our other local loop simulator products for a wide variety of test configurations.

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• High Performance transparent solution designed to automate testing of ADSL, ADSL2, ADSL2+, & VDSL2 chip/modem/DSLAMs
   
• Bidirectional multiplexing and demultiplexing
   
• Low Crosstalk
   
• Low Insertion Loss
   
• Can be controlled remotely via RS-232, Ethernet or IEEE-488 (GPIB)
   
• Plugs into our 458 Series (16-Slot) or 458-3SLB (3-Slot) chassis
   
• One-Year Warranty/Calibration.

• Powerful yet easy to use CPE interoperability and performance testing solution.
• Ideal for DSL equipment designers, manufacturers, and resellers.
• Integrated software control of DSLAM, line simulator, and noise generator test parameters.
• Available WT-100 test profiles, possibility for customer defined test profiles.
• Up to 8 channels for test setup configuration.
• Annex A and Annex B versions available.
• Full setup options and status information
  
• Advanced GUI for simulator control.

Test Sequencer Software
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Selecting START permits access to the "Setup & Run" options shown below.

Test Selection
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Tests can be carried out in a variety of noise scenarios.

Restore from Database
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The option "Restore" allows the retrieval of all the runtime data from a previous test run.

Noise Verification Software

Verify the accuracy of noises produced by various noise generators.

Automatic Report Generation Software
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The automatic report generation module outputs DSL Forum compliant documents with a simple touch of the button

Report Generation in Progress
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Watch the test report being generated, extracting the data from the database directory.