Splitting Cable to new home addition and networking therein

Keith Bond

Honorable
Aug 31, 2013
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10,510
I have recently built an addition to my home and have wired the new addition for networking with Cat5e. I have also run networking cable from the new addition into my preexisting home. My idea was to have a 'networking closet' consolidating everything except cable tv in the preexisting house. Cable tv in the preexisting house will still have to originate from the exterior cable service contact point. I have run a length of orange RG11 from the exterior cable contact point to my addition and into my 'networking closet' where I hope to house most if not all of my electronics.

In the setup I have described I am now splitting my cable input twice. Once at the exterior cable access point, splitting primarily to the RG11 connected to the addition, and and secondarily to any TVs in the prexisting house. Second in the 'networking closet' where the RG11 ends, primarily to a modem and secondarily to cable tv in the addition.

My primary concern is the multiple splitting of the signal. How will this affect my signal and what are any suggestions to guide me in the correct direction.

My second concern is the routing of data from the 'networking closet'. If I were to use a good quality gigabit wireless router in there, I feel that its location which is in a closet within a closet in the farthest reaches of the home seperated by brick, concrete board etc... might be to much for wireless to penetrate throughout the preexisting home. Could I use a good wired router in the closet that then connects by networking cable to a wireless router more centrally located in the residence. I think that using one 'all in one' router would be ideal, however if I am correct on even high quality wireless not penetrating, could I have some suggestions on a solution or a wired router to use. Also, are there good gigabit wireless routers that use more that one wireless access point? Perhaps with the wireless antennas away from the main unit?

I even have diagrams of this if my explanation has been too vague or confusing.

Excuse my ignorance and thanks for any help.
Keith



 
Solution


You can't change the laws of physics. The best splitter money can buy still has losses. Insertion loss is usually about 1db. If I were you I would not split ahead of the distribution amp. You need as much signal as possible going in. Find a different way to plumb the house. The data is just "ones & zeros" so that should not be a problem.
Do not use more "routers" than you absolutely have to. For wired stuff just use a simple switch.

The optimum from a performance standpoint...although it will not be from a cost standpoint.

Put a cable modem as close as you possibly can to the building entrance you want this on the first splitter. I would also run the routing function here. Next assuming its all gig ports run a cable to your switch in your closet and hook everything else to this switch. Then put AP (or router running as AP) in rooms that will provide optimum coverage for wireless using your switch to connect everything together.

It may work to put the cable modem/router in the closet but it depends on the quality of the cable and splitters

 

ram1009

Distinguished
What you need for the TV network is called a distribution amplifier. There are many to choose from. Every time you "split" a TV signal you lose more than half the power. Some of it goes to what's called insertion loss. The DA will add some gain to compensate for the splitter losses. You have the right idea for the wireless network but you don't need a router, only a wireless access point or wireless switch. If you already have a router it will work but the router section won't be used.
 

Keith Bond

Honorable
Aug 31, 2013
5
0
10,510
Ram what about the two splits before the modem, will that have an effect and how much assuming I use the best splitters I can. I understand the degradation of TV signal but am confused about the amount of 'data' signal loss.
 

ram1009

Distinguished


You can't change the laws of physics. The best splitter money can buy still has losses. Insertion loss is usually about 1db. If I were you I would not split ahead of the distribution amp. You need as much signal as possible going in. Find a different way to plumb the house. The data is just "ones & zeros" so that should not be a problem.
 
Solution