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SERVSWITCH™ AFFINITY
The ServSwitch Affinity will support SVGA (Super VGA) video, but with original
Serv cables the video quality will decrease markedly at higher resolutions and
distances. Table 3-2 illustrates this. The distances in the table are total lengths of
CPU Cable and User Cable (but
not
Expansion Cable) measured from the CPU to
the monitor. The table assumes that one ServSwitch Affinity is between the CPU
and monitor; in a daisychained application with multiple Affinity units between the
CPU and monitor, video quality will always be lower.
This table also applies to Mac video in Affinity systems in which the Mac version
of the original Serv type CPU Cable (product code EHN215) has been installed.
Table 3-2. 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
3
3
3
3
3
800 x 600
3
3
3
2
2
1024 x 768 interlaced
3
3
2
2
2
1024 x 768 noninterlaced
3
2
2
2
2
1280 x 1024 interlaced
2
1
1
1
1
1280 x 1024 noninterlaced
2
1
1
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
