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CHAPTER 4: Operation: Hardware and Keyboard Commands
The ServSwitches will support SVGA (Super VGA) video, but with original Serv
cables the video quality will decrease markedly at higher resolutions and distances.
Table 4-2, below, illustrates this. The distances in the table are total cable lengths
measured from the CPU to the monitor. The table assumes that one ServSwitch is
between the CPU and monitor; in a cascaded application with a ServSwitch and
one or more submasters between the CPU and monitor, video quality will always be
lower.
Table 4-2. Video Quality vs. Distance for Original Serv Cables
Resolution
Distance
5' (1.5 m) 10' (3 m) 15' (4.6 m) 20' (6.1 m)
25' (7.6 m)
640 x 480 333 3 3
800 x 600 noninterlaced 333 2 2
1024 x 768 interlaced 332 2 2
1024 x 768 noninterlaced 322 2 2
1280 x 1024 interlaced 211 1 1
1280 x 1024 noninterlaced 211 1 1
1600 x 1280 noninterlaced 211 1 1
Quality 3 = Near perfect; screen defects are not conspicuous
Quality 2 = Good to very good; images are clear; there are small reflections around
text lettering depending on the color; screen defects are sometimes
conspicuous
Quality 1 = Fair to poor as distance increases; images run from slightly fuzzy to
badly smeared; text runs from fuzzy but readable to completely
washed out