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GSS 100 Graphic Still Store • Introduction
Introduction
GSS 100 Graphic Still Store • Introduction
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About the GSS 100 Graphic Still Store
The Extron GSS 100 is a portable graphic still store with 16 MB
of memory, into which you can load up to 6 XGA (1024 x 768)
bitmap images (*.bmp) or 32 or more (depending on the
compression rate) XGA jpeg (*.jpg) still images. The GSS can
then output them in an RGB video format. The GSS provides a
pass-through RGB video input, in addition to the stored images,
and allows you to switch the output between the input and one
of the stored images. This allows you to display a still image of
your own choosing, such as a logo, text, or a landscape, during
meeting breaks or while you load or make last minute edits to a
presentation on a laptop computer.
Extron
GSS 100
Graphics Still
Store
Multiple Images
(for recall during
presentations)
Projector
Graphics PC
Presenter’s
Laptop
TCP/IP
Network
Figure 1-1 — Typical GSS 100 application
User-selected images, including the test patterns, can be
uploaded to the GSS via its Ethernet port using the GSS’s built-
in HTML pages. The pass-through RGB input and the output
are via female BNC connectors.
The GSS provides 16 MBytes of RAM for storage, providing
room for up to 17 uploaded bitmap images. The number
of images that the GSS can accommodate depends on the
resolution of the images. The table on the next page shows the
number of *.bmp images that the GSS can accommodate, based
on several common resolutions.
Approximate image space for *.bmp files
Resolution 640x480 800x600 1024x768
Size 900 kB 1400 kB 2400 kB
Image space 17 11 6
Resolution 1280x1024 1400x1050
Size
4000 kB 4400 kB
Image space 4 3
N
Because of the variable compression schemes for *.jpg
images, there is no reliable method to calculate the
number of *.jpg images that the GSS can hold.
Progressive *.jpg images are not supported.
Bitmap (*.bmp) images must be formatted as 24-bit
RGB.
This still store is housed in a rack-mountable, 1U high, half rack-
width metal enclosure. The internal 100 VAC to 240 VAC,
50/60 Hz, 15-watt, auto switchable power supply provides
worldwide power compatibility.
Features
• 16 MB of internal memory storage — Sufficient for 6
XGA resolution (1024 x 768) *.bmp graphics, or 32 or
more *.jpg images at XGA resolution, depending on the
compression rate.
• Input pass-through mode
• Cut or dissolve switch effect between stored images
• Slide show effect automatically cycles through images
• Auto-switch mode — Automatically switches to the
selected stored image or a slide show when sync is lost on
the pass-through input.
• Rack and under-desk mountable
• Worldwide internal power supply