Polycom QSX 3725-22370-001/B Manual De Usuario

To understand how an image is scaled from the QSX unit’s VGA output to another 
device, refer to the following table: 
 

640 x 480

640 x 480

640 x 480

800 x 600

800 x 600

640 x 480

1024 x 768

800 x 600

640 x 480

1024 x 768

800 x 600

640 x 480

 

 
 
In this table, if you wish to scale VGA output of the QSX from, for example, 1024x768 
to 800x600, the resulting scale will be 800x600. 
 
Note: If the resolution of the VGA Output is configured at 1280x1024, the images will 
automatically be scaled to 1024x768 for transmission. 
 
Note:  The QSX supports local display output resolutions of 1280x1024, 1024x768 and 
800x600, but not 640x480.  If the output device supports DDC, the highest resolution 
will be first selected. If output device does not support DDC, a 1024x768 resolution will 
be used. 
 
Note: The QSX output scaling option takes effect after the next presentation starts. If the 
option is changed when the QSX is in presentation, it is required to stop presentation and 
start again. 
 
When the QSX displays a remote image, it will always scale the decompressed image to 
its own local display resolution.  The resolution can be one of the following three 
resolutions: 
 
•  SXGA (1280 x 1024) 
•  XGA (1024 x 768) 

•  SVGA (800 x 600) 

 

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