Best all to wire


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Best all to wire

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hannadock
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Feb 19, 2006, 6:56 PM

Post #1 of 9 (584 views)
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Best all to wire	Can't Post

New to forum and need your help. I have nine outlets. Comcast came out last year and placed 2 amplifiers outside and 2 over power protect devices in my house. 1 power device is to an unused outlet and 1 that has a tv with splitter. 4 of the outlets have reception but not all higher channels come in clear. Some of the lower channels are not totally clear. Here is the problem 1 outlet will not come in unless this 1 particular outlet is connected and if this particular outlet's end is off then both outlets signal is knocked out. As long as the 1 connection is not grounded to the splitter then there is a signal but not totally clear. What I mean by that is the coax and not the sheath is touching the splitter. The other tv's work fine. I'm sure I have totally confused you. Any suggestions appreciated.

twc_guy
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Feb 19, 2006, 7:08 PM

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Re: [hannadock] Best all to wire [In reply to]	Can't Post

Well, it could be a few things. If they put in 2 amps, there might either be too much signal, or not enough. I don't understand why they would put 2 amps in a house. I would place a service call into Comcast to verify the levels are where they should be.

Also, if you are having problems with some outlets, by what you had said, it sounds like a splitter is hooked up wrong. I would have Comcast come out and look at the splitters. You can try to verify that the splitters are hooked up right, but if you don't understand what is going on, let them deal with it.

They might have run a 2 way splitter behind a TV somewhere, to feed the rest of the house instead of doing all the connections downstairs (I have seen this before), it just sounds like you have a real wiring nightmare going on at your house.
I work for Time Warener Cable, and have been on the field for some time. I try to help out when I can!

hannadock
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Feb 19, 2006, 7:25 PM

Post #3 of 9 (578 views)
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Re: [twc_guy] Best all to wire [In reply to]	Can't Post

Thanks for replying so fast. The 2 amps are outside before the splitters and everything was working ok before they installed these. I was having trouble with my internet access and he said my house was too far from the pole and needed these. I did take a new cable and ran it from 1 of the tv's straight to an outlet in the amp and it works great but that was a test, don't want it hanging out my window. HA. I am thinking that these 2 outlets are grounded together somewhere under my house. Is there a good diagram somewhere on how all these outlets, amps and splitters should be wired? I only have 1 splitter and it's outside. All my cable are straight runs to the outside amps/splitters. I have looked online and can't seem to find one. Thanks again for all your help.

twc_guy
Novice

Feb 19, 2006, 8:07 PM

Post #4 of 9 (575 views)
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Re: [hannadock] Best all to wire [In reply to]	Can't Post

No Prob

Well, first off, where you think the lines are grounded, check to see if there is a splitter in between the outlets and in the basement. If there is, make sure the line coming from the basement is going into the "Line In" or "In" on the splitter, and the 2 lines running out are hooked up to the "output". It almost sounds like the splitter is backwards.

Also, check back in about 15 - 20 minutes, I am drawing up a diagram right now, and I will post the link when I am finished.

If your house is too far away, ask them if they will run a RG11 cable from the tap to the house, and that should clear up the issue with the amps.

See, with cable, it's wierd, but if there isn't enough signal, the cable won't work; but also, if there is too much signal, the cable won't work either. I know on our cable system, we have a 20db window that we can play with, from -10db to 10db, but the optimal signal is 0db.
I don't know if this makes any sense, but I'm going to try to explain it. A line amplifier boosts the signal +15db.

I'm going to take a guess on some of these levels, but hopefully, you'll see what I am trying to say

Signal out of the tap +20db (+20db)
Line Amp +15 (+35db)
Line Amp +15 (+50db)
225 Feet RG6 Cable Outside -22db (approx) (+28db)
15 Feet RG6 Cable Inside -2db (approx) (+26db)
2 way splitter -3.5db (+22.5db)

I am just throwing an example out there on what it could be. Even after the two way splitter, your signal is still +12.5db higher than it should, causing major issues.

Like I said, check back in about 15 minutes, and I'll have a link posted with a diagram for the wiring.
I work for Time Warener Cable, and have been on the field for some time. I try to help out when I can!

twc_guy
Novice

Feb 19, 2006, 8:20 PM

Post #5 of 9 (572 views)
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http://www.jasenterprisesonline.com/wire.JPG

all the connections should be made in the basement, for easy access and a central point for all the wires to go. This is a rule of thumb that we live by (Time Warner), you never amplify a HSD (High Speed Data) line, you want to dedicate the line before you amp it, because it not only throws your forward signal too high (the part where the data is brought to your computer), but it also will change the reverse signal (the part where the data goes back to the web), so you dedicate the line, then amp the other line, and from the amp, you hook another splitter (depending on how many outlets are in your house) to feed the house.

I hope this helps.
I work for Time Warener Cable, and have been on the field for some time. I try to help out when I can!

hannadock
Novice

Feb 19, 2006, 9:31 PM

Post #6 of 9 (569 views)
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Re: [twc_guy] Best all to wire [In reply to]	Can't Post

Thanks this help alot. It looks like I have 2 Electroline dropamps in the mix. The drop comes into a ERA 4100 and then out to a EDA 2400 which has 4 outputs, 1 of the outputs goes to a splitter and I hope the other goes to my cable modem. The splitter I think but not positive has the 4 outlets that the signal is not clear. I will check hopefully tomorrow, if the weather clears up, everything is outside. 1 output of the EDA 2400 goes into a Electroline power inserter in 1 room then to tv. All the unused outputs have terminators. Also the splitter has been replaced several times to rule it out. Again thanks for all your help.

hannadock
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Mar 5, 2006, 3:58 PM

Post #7 of 9 (537 views)
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I purchased a 8 port Electroline DropAMP which is not suppose to NOT interfere with my cable modem. I worked great for 3 days and now my internet stopped working. If I split off of the powered outlet like the old type it works. Electroline is closed so I will have to wait until Monday. That's alot of money for something not to work like it says. Any suggestions? thanks

comcast.tech
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May 19, 2006, 11:43 PM

Post #8 of 9 (476 views)
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Re: [hannadock] Best all to wire [In reply to]	Can't Post

TWO WORDS.......CROSS MOD!!! Reply if you care.

thefrogtree
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Jan 25, 2007, 8:43 PM

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Re: [comcast.tech] Best all to wire [In reply to]	Can't Post

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