DSL Xpert™ - FAQ
 Below is a list of Frequently Asked Questions.  If you cannot find an answer to your question in this list, please contact our Technical Support for further assistance.

 

FAQ topics:

 

 

 

 

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General

  1. What are the minimum PC system requirements for running the DSL Xpert™ application?

  2. Which verifications and tests are done by DSL Xpert™ (regarding protocol compliance and modem behavior)?

  3. How do I edit the severity of the different events?

  4. Can we perform Automated / Remote testing with DSL Xpert™?

 

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Licensing & Supported Protocols

  1. I have purchase a new/upgraded license (e.g. added support to additional protocols like ANSI/ADSL2+) but when using the equipment I get a message that these protocols are not supported.

  2. I need to analyze a protocol which is not supported by DSL Xpert™ (ANSI/ ADSL2+/ Annex B/ Annex L). What do I need to do?

  3. Which ADSL protocols are supported by DSL Xpert™?

  4. Does DSL Xpert™ support Loop Diagnostics mode in ADSL2 / ADSL2+?

 

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Signals & Raw-data Files

  1. Can I take the sampled raw-data from DSL Xpert™ and view it in MATLAB?

  2. What is the resolution of the PSD/QLN/SNR graphs?

  3. Can the raw-data files be compressed?

  4. Can we receive all QAM Constellations transmitted during Showtime in a convenient format?

  5. Does DSL Xpert™ use a PLL to lock to the capture points or does it over-sample and without locking?

 

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Evaluating & Analyzing Products

  1. Where can we see bit swapping during show time and what information is available?

  2. How do I check if the quality of the transmitted QAM signal in Showtime is good?

  3. What is the difference between Total Data Rate and Net Data Rate displayed in the system?

 

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Problems

  1. When starting capture, I cannot set the capture time to be higher than a certain value. What should I do?

  2. Analysis takes a very long time after using "Capture Anyway". There is no problem with the PC, and its specs are higher than the minimum requirements. Why does this happen?

  3. We have the unit connected to a new PC in one location (running Windows XP, plenty of memory, disk space, processor power, etc.). We can use the PC, connect to the box and use it fine. But when we try to remotely use the software (using Windows XP Remote Desktop Connection), we get an error box popping up which says "Incompatible Requirements, Not enough colors (min 24 bits per pixel required)". The monitor is set for 32 bits per pixel.

  4. I am trying to use the raw capture data file for a software simulation of our modem. How do I extract the raw data?

  5. I'm trying to install DSL Xpert™. The OS is Win2K, and it has recent Microsoft updates and patches up to roughly a week ago. I am getting several error messages and the install process always stops.

  6. In some of the screens, Channel Analysis for example, I see characters overlapping one on top of the other. How can I fix it?

  7. With my DSLAM, we seem to go through more than one G.HS attempt, some of them fail in G.HS stage, some fail at what our CPE unit thinks is MEDELY, but it looks like by the time we get to the Channel Analysis stage the DSLAM is transmitting the G.HS C-Tones. The DSL Xpert™ seems to pick up the session from the moment of the first successful G.HS + ADSL exchange. Is there a way to pick up the unsuccessful attempts before the successful ones or to do a manual start and stop?

 

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