Hello, new here and I have a complicated issue. Hang in there the explanation might take a while.
So I have 11 tvs/displays and 5 sources (2 cable boxes, gaming system, dvr, and a future PC server setup. All have hdmi cables. Each display has 2 cat5e and cat6 running to it from the "source" room. My plan is to have hdmi and ir over cat6 from each of the displays that will then go to a 5in 1out hdmi splitter with ir remote. Then from there each one will go to one of the 5 devices and each device will have a 1in 11out splitter (I archived 11 out by plugging a 1in 4out into a 1in 8out splitter making 11) now here is the issue. All of the 5in 1out splitters are identical and use the same remote and frequency. I was planning on using aux cables in the "source" room to connect all ir signals to their respect locations but the signals will get mixed at the shared cable boxes. I have bought several different types of ir emmiters but I can't get ANY of them to work. Only thing that works is an aux cable replacing the emmiter. I tested the emmiters with my front facing camera on my iPhone and all emmiters are sending the signal but no matter what combination I use I can't get them to work. I have tried different cable boxes, tried it on the splitter, tried a ir receiver on the back of the cable boxes and had the emmiter pointed at that receiver. Nothing will work!! It's driving me nuts. I don't care for solving the problem with the emmiters if there is an aux solution without them mixing signals. The next thing I will try is wiring a diode in the aux cable to hopefully prevent the signal from backtracking at the cable boxes. But voltage loss will probably be to big and deplete the ir signal. I'm running out of things to try.

 

I didn't read your post yet, but I would recommend investigating IPbaseT technology from: http://auroramultimedia.com/news/ipbaset-4k-video-compression-latency-ip-distribution/

Basically an IR, 2 x HDMI, USB, Dante audio cross point switch over gigabit Ethernet.

 

OK, did a bit of reading on your post. I doubt the HDMI splitter supports the secondary channel or all the other stuff. e.g. Ethernet over HDMI.

So, yep, you may have to do your IR separate. Take a look here: http://www.keene.co.uk/infra-red/ir-distribution-extenders/ir-over-ip.html I do have some of their stuff, but not hooked up.

and at www.globalcache.com

 

OK, did a bit of reading on your post. I doubt the HDMI splitter supports the secondary channel or all the other stuff. e.g. Ethernet over HDMI.

So, yep, you may have to do your IR separate. Take a look here: http://www.keene.co.uk/infra-red/ir-distribution-extenders/ir-over-ip.html I do have some of their stuff, but not hooked up.

and at www.globalcache.com

Yes it does work, that's not the issue, everything works when wired with 3.5mm aux cables at the emmiter end. The issue is that the splitter signals will get mixed when they are joined together at the cable boxes. For example if I use the ir remote for the splitter on tv 1 to change it to input 2. Then all of the other tvs will change to input 2. And I don't want that

 

OK, did a bit of reading on your post. I doubt the HDMI splitter supports the secondary channel or all the other stuff. e.g. Ethernet over HDMI.

So, yep, you may have to do your IR separate. Take a look here: http://www.keene.co.uk/infra-red/ir-distribution-extenders/ir-over-ip.html I do have some of their stuff, but not hooked up.

and at www.globalcache.com

This is what I'm using to carry the ir and hdmi signal. The hdmi itself isn't carrying the ir signal http://m.ebay.com/itm/196ft-LKV372A...-IR-cat6e-6-3D-1080P-/311377339448?nav=SEARCH however I did try carrying the ir signal over the hdmi through the splitter and that works too

 

Does your HDMI spillter incorporate lights that you can tap for the state of the splitter, a bit of logic, so that you can route the IR based on the HDMI output selected?

This http://www.keene.co.uk/infra-red/ir-distribution-extenders/ir-over-ip/keene-ir-commander-matrix.html offers some IR routing.

They do have an adapter that will convert emitter formats. They are not all the same.

They do generally have power, signal and ground.

Take a peek here http://www.keene.co.uk/infra-red.html?p=1 and also their IR receiver adapter on page 5. I have the elatter.