Cablediagnostics - Lightware MMX4x2-HDMI User Manual

   
5. Software Control - Lightware Device Controller
5.7.3. Cable Diagnostics
DIFFERENCE:
This tool is available for 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 into red. It means
the number of the errors – during the extension – is higher than recommended. 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
Above displayed "Video BER < 1 " value 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
section.

#cablediagnostics

Explanation
pixels, which
10
Mechanical Drawings
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
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 on clicking on the Export data button.
Table view of cable diagnostics
Chart view of cable diagnostics
44