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Question by Rudy Landa posted 30 Sep 2003 | | s-video over cat5 | I have a polycomm videoconferencing unit pushing out s-video for projector use. The configuration would be a 20' s-video cable going from the Polycomm to an s-video bulkhead connector to the wall. The run from the wall to the ceiling projecter would be 32'. The s-video cable run from the wall to the projector has not been installed yet. My understanding is that if I have high quality s-video cables, the 52' run should not be a problem for signal loss (other than what the s-video bulkhead may cause). Would running s-video signal over cat5 wiring using an s-video to cat baluns be just as good as using straight s-video cable? Would there be a visible difference in quality?
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Answer by Dmitri Abaimov posted 08 Oct 2003 | Dear Rudy,
Using baluns over CAT5 cable would make the signal even better (when running considerable distances). The balun, by balancing the signal, makes it less susceptible to EMI. However, I do not think 50-some feet will be a problem either way. Actually, you don't even need a balun for 52' run. Ortronics makes a nice passive (Straight-through, no balun) faceplate insert for S-Video. Just grab one from your cabling parts source.
It's just so much easier to install CAT5 cables than any of the specialty cables, such as S-Video, because of the (bulky) connectors that are usually installed on both ends.
Sincerely,
Dmitri Abaimov, RCDD
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