Software Update DSP-100 CableMeter

Note: Category 5e and higher requires ACR-F and PS ACR-F; the DSP-100 CableMeter is not capable of making these measurements. If you need to certify to category 5e, please take a look at the DTX CableAnalyzer. If all you need to do is to qualify that your existing links will support 1000BASE-T, the CableIQ may be a better choice.

How to check your current software / firmware version 

  • Connect the main and remote unit together
  • Power on the remote unit.
  • On the main unit, rotate the dial to Autotest. You will see the software / firmware version for both the main and remote units.

Downloading new software overwrites the existing test software in your test tool. You will not have access to the old version of the software.
Downloading new software erases all data stored in the test tools memory. To prevent an unexpected loss of battery power to the test tool or remote, connect the battery charger to the test tool and the remote during the downloading process.

Install the latest version of the   utility on your PC.

Updating the Main Unit
You need to get the latest version of firmware from the website, click here.

Once you have downloaded the file dsp_55.exe, run it from Windows Explorer. It will extract two files (dsp_55.dsp & sr_55.dsp) to the C:\Cblmgr directory. Connect the instrument to the PC using the supplied 9-pin to 9-pin PC interface cable. Start LinkWare on the PC.

Click on Utilties > DSP-100/2000 CableMeter > Software Update.

 When prompted for the location of the software update source file, enter the path to the C:\Cblmgr on your C drive; select dsp_55.dsp; then click on Open. When the test tool software is installed, connect the PC interface cable to your remote unit and turn the remote on.

Updating the Remote Unit
In the LinkWare window, click on Utilties > DSP-100/2000 CableMeter > Software Update. Select the file sr_55.dsp as the software update source file for the remote; then click on Open to install the new software in your remote. The update process is now complete.

Lets also check the instrument out as well.
Connect the two units together using the 15 cm (6 inch) cable1 below. If the cable is longer than 15 cm (6 inch), it will not allow you to run the Self Calibration.

Run the Self Calibration in SPECIAL FUNCTIONS. If it comes back PASS, youre ready to go. 

Self Test fails
Regrettably, the DSP-100 is no longer a repairable item as of January 2006. We try to maintain service for an instrument 5 years after it's last date of manufacture - as in the case of the DSP-100. We would like to keep you as a Fluke Networks customer. Please let us know how we can do this at