Specifications

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CHAPTER 3: Installation and Preconfiguration
By contrast, coaxial cables (standard for Sun applications, required for XGA
applications, and recommended for most other applications) do much better at
maintaining video quality, as shown in Table 3-3. (For the meaning of quality
numbers 3, 2, and 1, see the bottom of the previous page.) As before, the distances
in the table are total adapter-cable lengths (not including Expansion Cable)
measured from the CPU to the monitor. Also as before, the table assumes a single
Affinity is between the CPU and monitor; if there are other chained Affinity units
as well, video quality will always be lower. (Where “interlaced” or “noninterlaced”
isn’t specified, noninterlaced video is implied.)
In some applications, if you use short runs of good cable, the Affinity might be
able to carry resolutions as high as 1600 x 1280, but we can’t guarantee this.
Table 3-3. Video quality vs. distance for coaxial cables.
Resolution
Distance 10 ft. 20 ft. 30 ft. 50 ft. 75 ft. 100 ft. 150 ft. 200 ft.
(3 m) (6.1 m) (9.1 m) (15.2 m) (22.9 m) (30.5 m) (45.7 m) (61 m)
640 x 480 33 3 3 3 3 2 2
800 x 600 33 3 3 3 3 2 2
1024 x 768 interlaced 33 3 3 3 3 2 2
1024 x 768 noninterl. 33 3 3 2 2 2 1
1280 x 1024 interlaced 32 2 2 2 1 1 1
1280 x 1024 noninterl. 32 2 1 1 1 1 1
CAUTION!
Some CPUs can’t drive or receive keyboard and mouse signals across
longer runs of coaxial cable. Consult with the manufacturers of your
CPUs before installing this cable in lengths greater than 20 ft. (6.1 m).
If all of your CPUs are IBM PC compatible, and you want to drive signals across
CPU-to-Affinity or Affinity-to-monitor distances over 100 feet (30.5 m), you might
require Station Extenders or CAT5 KVM Extenders (see Appendix B). Please call
Black Box Technical Support to discuss your application.