Extron electronic Introduction, About the GSS 100 Graphic Still Store, Features, Extron GSS

Introduction

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.

TCP/IP

Network

Graphics PC

Extron

GSS 100

Graphics Still

Store

Multiple Images
(for recall during		Presenter’s
presentations)	Projector
		Laptop

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

NBecause 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

1-2 GSS 100 Graphic Still Store • Introduction GSS 100 Graphic Still Store • Introduction 1-3