Video Settings
This dialog provides access to all of the key video settings that determine image quality and link performance.
Using automatic configurations
• | Every setting can be individually subjected to an automatic configuration |
| (click the appropriate ‘Auto’ button) or can also be manually adjusted. |
• | Use the ‘Calibrate All’ button to automatically determine the optimum |
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Threshold
The threshold is effectively a noise filter that differentiates between valid video signals and background noise or interference. This has the effect of reducing unnecessary video signals between the ServSwitch CX and the remote system, thus improving performance.
Phase
The phase setting adjusts the alignment of the host video output and the remote system video display to achieve the sharpest image.
Horizontal Position
Determines the horizontal position of the host screen image within the viewer window.
Vertical Position
Determines the vertical position of the host screen image within the viewer window.
Brightness & Contrast | Calibrate All | Display activity |
The red, green and | Click to | Indicates the level |
blue constituents of the | determine the | of video activity |
brightness and contrast | optimum settings | currently in |
can be set individually. | for all aspects of | progress. |
Alternatively, use | video the video |
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the Auto button | connection from |
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on the right side to | the host system. |
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automatically optimise |
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these for the current |
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host and connection |
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speed. |
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settings for all items. |
Note: Before using the ‘Calibrate All’ option, if possible, remove |
display (OSD) elements generated by the ServSwitch CX with IP or any other |
connected KVM switches (such as a host name label or menu). These OSD |
elements use different video rates to those of the host system(s) and can |
affect the setting of the automatic threshold value. ServSwitch CX with |
IP uses an improved calculation procedure to filter out the effect of these |
elements. However, best results are obtained when the screen contains only |
host system information. |
Note: To maximise performance, the threshold level is automatically |
increased by 50% when a slow link is detected. |
Note: When the ServSwitch CX with IP is used with one or more other |
switches, the threshold needs to be higher than 32 due to the significant |
amounts of ‘noise’ that these switches introduce. The ServSwitch CX with IP |
configuration should detect such noise and adjust the threshold accordingly. |
Setting the Threshold manually
Occasionally it can be useful to manually adjust the Threshold setting, in order to achieve a setting that best suits your particular requirements.
1Use the ‘Calibrate All’ function to ensure that all other settings are optimised.
2Click the Threshold left arrow button to decrement the setting by one and observe the ‘Display Activity’ indicator.
3Repeat step 2 until the Display Activity indicator suddenly rises to a much higher level (i.e. 50%). This will mean that you have reached the noise boundary. At this point, increment the Threshold value by 2 or 3 points to achieve an optimum setting.
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