Cablediagnostics - Lightware MMX4x2 Series User Manual

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5. Software Control - Lightware Device Controller
5.7.3. Cable Diagnostics

DIFFERENCE: This tool is available for the MMX4x2-HT200 model only.
The cable diagnostics is a useful tool to determine any cable-related issue in case of TPS connection. The
estimated cable length and the quality of the link are measured periodically, and the diagnostic window
shows the values in real-time. If the green bars hit the first line in the middle, they turn red. It means the
number of errors during the extension is higher than what is generally deemed acceptable. The link might be
alive, but recovering of the received data is not guaranteed.

INFO: Each bar represents a differential line in the CATx cable. The inappropriate termination of the cable
usually causes high error rates. Check the cable terminations or change the cable.
Reference Values
Value
1 - 1 Excellent image quality
-10 -9
1 Minor error, not recognizable by eyes
-8
1 Sometimes recognizable flash on a special test pattern
-7
1 -6 Small noise can be seen
1 -5 Easy to recognize image error
1 Bad image quality
-4
"Video BER < 1 " value displayed above means that on average there is 1 bad pixel after 10
-10
means the number of the bit errors is about 1 pixel in every 80 seconds.
INFO:
You can find more details about maximum twisted pair cable distances in the
Distances section.

#cablediagnostics

Explanation
pixels, which
10
Maximum Extension
Applied firmware package: v1.6.0b19 | LDC software: v2.5.13b5
MMX4x2 series – User's Manual
Table and Chart Views
Cable diagnostics can be displayed in advanced modes as well. Two ways are available: table view and chart
view. Data can be exported to a file by clicking on the Export data button.
Table view of cable diagnostics
Chart view of cable diagnostics
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