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S-Video over Cat5E WITHOUT baluns? - Page 2

post #31 of 42
Quote:
Originally Posted by jdanielsg View Post

does anyone know anything about running 2 hdmi side by side, this is for in wall.. thanks

I can't answer your HDMI question, but as for the S-video and RCA over cat 5e, you shouldn't lose a thing. I am running VGA (Xbox 360, 720p) over about 5' of two cat 5e cables, and I have no loss of quality.
post #32 of 42
Quote:
Originally Posted by oktoberrust11 View Post

I can't answer your HDMI question, but as for the S-video and RCA over cat 5e, you shouldn't lose a thing. I am running VGA (Xbox 360, 720p) over about 5' of two cat 5e cables, and I have no loss of quality.

hey thanks for the reply, that is good to know. I am assuming u use the leviton stuff and not any special baluns or balun wallplates like from Intelix and such... So everything sounds good and looks good eh How long have u had the set up?
post #33 of 42
Quote:


and I have no loss of quality.

...that you're aware of...
post #34 of 42
Quote:
Originally Posted by jdanielsg View Post

hey thanks for the reply, that is good to know. I am assuming u use the leviton stuff and not any special baluns or balun wallplates like from Intelix and such... So everything sounds good and looks good eh How long have u had the set up?

Actually I used the Hubbell line, but very similar to the Leviton line. No special baluns, just these:

http://www.hubbell-premise.com/FTP/L...AVBrochure.pdf (bottom right of last page)

Looks good, sound is fed directly from the 360 to the receiver through an optical cable. I've had it setup this way for about a month.
post #35 of 42
Quote:
Originally Posted by Targus View Post

...that you're aware of...

Ok. No loss of quality that I can see. I was able to switch from the straight Microsoft VGA cable to over the cat 5e's in about a minute, comparing the two, and I couldn't notice anything different.

We have instaled these as well as the S-video and composite inserts quite a few times at my work, with really good success.
post #36 of 42
Quote:


We have instaled these as well as the S-video and composite inserts quite a few times at my work, with really good success.

We evaluated the performance of these connectors, using a TDR set, and laughed at the results.....you'll never find these used in professional video installations.
post #37 of 42
Quote:
Originally Posted by Targus View Post

We evaluated the performance of these connectors, using a TDR set, and laughed at the results.....you'll never find these used in professional video installations.

ok . We have installed them mainly in schools or companies connected a laptop to a projector for Powerpoint, etc. And I don't consider my 360 to 32" LCD connection a professional video installation, so, as I said, no video loss that I can see.
post #38 of 42
Quote:
Originally Posted by Targus View Post

This is a common myth. Twisted pairs do not eliminate any noise. Differential transmitters and receivers do.

QFT. Listen to this person.

Using "balanced" cable with unbalanced source/destination equipment does not magically turn them into balanced.

The advantages of true balanced circuit is their ability to reject common mode noise. Twisted cable (such as cat5) help by ensuring any noise picked up by the cable is picked up EQUALLY by both conductors so the differential receivers can reject them better. Unbalanced receivers will just happily amplify the noise that is picked up by the balanced cable, and you will have MORE interferance that if you used the proper shielded, unbalanced signalling cable.

Now, for a practical example, I tried the Leviton S-Video over cat5. I had a problem in that every time I turned on/off my ceiling fan in the room, I had a quick "interferance" show up on the TV.

So I replaced the cat5/cat5 punchdown S-video insert, and purchased a real S-video feedthru and real twin coax S-video cable. While I noticed no picture quality change (the impednace difference between the S-video cable at 75 ohm vs. the 100 ohm impedance of the cat 5 didn't seem to affect the picture quality enough to notice), the interferance was TOTALLY eliminated.

My run was/is 35 feet total.

-Alan
post #39 of 42
i just finish installing my in wall cat5e for S vide and sound. I am putting my TV on the mount today and will report back to let you guys know how it performs for short runs...
post #40 of 42
A 40 foot run is okay w/ RG6. Make sure you stay away from AC power and fluorescent fixtures. You can get EM interference. Also make sure the cables are exactly the same length.
post #41 of 42
Cat5 is a viable option. One potential problem I have experienced is Impedance mismatching between the RG6 cables in S-video or Component. On longer runs, the impedance must be matched, or you can get pretty severe attenuation. The only way to match the impedance is to order the length you want from a company that assembles the cable and verifies that the impedance is matched, or get eqpt that cost tens of thousands and try to match it yourself. With either option (cat5 vs RG6) make sure the runs are not parallel or close to runs of AC lines, fluorescent lights, RF cables, etc..
post #42 of 42
I felt I needed to add something to this thread...

I have a dedicated home-theater room, and we recently purchased a plasma for use in a hearth room near the kitchen. I installed the plasma, in the worst place for me, above the fireplace. When I built the house I ran RG6 and two CAT 5e cables above each fire place 'just in case'.

With no place to put a DVD player I researched baluns, and found Hubbells A/V line. I purchased two S-video + L/R audio baluns, which are 110 punch-down.

I installed everything yesterday. The first CAT 5 run is about 50 feet from the H/T room to my structured-wiring closet in the laundry room. The second run, from the laundry room to the fireplace where the plasma is, is about 50 feet also.

I put in the Eagles Farewell DVD to test everything. The image quality is about as good as my calibrated Pioneer Pro-530HDi, and the sound quality is as good as I can expect from the built-in speakers.

The plasma is a Panny TH42PX75U. The Hubbell baluns are the IMSR1101OW. ( I paid less than $45 for both baluns and plates locally.)

I will recommend this method to anyone desiring audio/video from a DVD to a remote location where it is simply not viable to place a DVD player near the display.
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