Black Box SW722A-R4 Manual De Usuario
35
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.
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
3
3
3
3
3
800 x 600 noninterlaced
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
1600 x 1280 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
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
washed out