`NotE: I added this answer serveral hours ago, but for some reason it keeps refusing to post:
The issue I see you have is that many of the designs for flexibility in wiring need a central location somewhere in the house for all the outlets in the individual rooms to terminate at. It could be on the wall where your electric breaker panel is located or a different area that is convenient to where you do home computing or to provide a main control point to manage ethernet access.
It would NOT just be a wall space for a distribution/wiring panel (which is not necessarily needed), but an area that either has shelves, cabinets, or a desk for all the commutation devices. At this central termination location, the Cat-6 cables would be run through ENT (smurf-type) conduits to each of the locations where you want to have outlets for TV, ethernets.
Depending on your service provider and each one does it differently, the outside data cable coming into the central location could be a DSL, coax, ethernet, or fiber cable. If you change service provide or upgrade the service, you may have to change the cable type, so that's a good reason for having an ENT conduit for this run. It is most likely that the Access cable entry point on the outside will be located close to the electric service entry. .
You are not really looking for a distribution panel, with its static patching setup. You need a distribution point or location. The distribution location is where all the networking, splitting of service types, distribution of data can be easy managed. The switch is performing what you would be doing with the patch panel.
The COMM devices needed are the gateway modem which connects to the router. This gateway can also split out the phone line, if one is still being used. A variation of this is VoIP, which carries the telephone traffic over the internet, and thereby you are able to put telephone service out of the ethernet line. .
The TV and data service is also just as complex, and depending on the service provider, how the TV signal is brought in, split out, and transmitted to the slave cable boxes varies. The best method is a wired ethernet connection, but if you are using that “one” cable run for data, then you would have to use Wifi to provide a signal to the other TV boxes. For Xfinity, the connection to the TV Master box is coax, and from this box, the TV signal is transmittal to the slave via Wifi or over the LAN that you set up for the other TV cable boxes. The external signal may be coming in over the same coax as the internet. A special splitter is used to split and send the same signal over coax to two devices, the the modem and the main TV cable box. How all this work is specific to each service provider and the level of service they are committing to.
For data networking and providing internet connections to all the locations, the router or switch is providing this service. The router or switch is located in the central location, and the ends of the cables from the various rooms are connected here to the type of service needed.
Picture below show devices described above and how they are integrated, managed, and linked at the central location. A single ethernet cable to each location back to the central location. Alternate path to these locations would be Wifi. Devices inside the dotted box is your central distribution center. Also additional Wifi access points can be connected from the central location to strategic location in the house for better coverage.
My recommendation for your “Distribution panel” is NOT a distribution panel, but a central distribution location with a minimum 16 ports switch that can also provide Power over Ethernet. Co-located with this switch, you can have the modem/router/Wifi access point, splitters, etc. This will make it easier to connect all the devices to each other and distribute the tv or ethernet signal to all the locations that have outlets or Wifi coverage.
If you do go with a distribution patch panel, be aware that two types are being sold, EU-type that needs a Kron Tool for the punch down and the US-type that uses the 101 punch down. Even if you use the distribution panel, you will be patching all those runs to a switch, so why bother to wire up a patch panel, insert a patch cable for every location and connect to the switch. Patching panels are used in network termination rooms to easily “patch” a location/outlet to a different domain switch without having to reroute the cables.
Notes on your pre-wiring of Cat6 cable. Yes – pre-wiring all the locations back to a central point is a good ideal. Central location must be selected carefully so the selected location has space, provide ventilation, and power for all the equipment needed to distribute the data or change data types. The Cat-6 is either solid or stranded, and each type requires its own type of RJ-45 jack, the solid requires fingers that cut and pinch the wire, the stranded has piercing prongs. Normally solid is used for fixed runs like you are doing. The stranded is used for patching or connecting the outlet to the devices (flexible and allows movement). With that said, you can really use either one for the fixed run. Plenum type is only required when the cable is run through a plenum air space, not within a stud space. I do not know what an attic space is designated as.
Adding additional information based on comments and questions.
½” ENT would be adequate but ¾” at a little extra cost would be my preference. Note in my drawing the ENT stops at the place the wires go down the stud. ENT is used in the stud space to the outlet box. This allows you to push/pull cables from the attic at that location and go off in a different direction.
You do not have to provide the splitter for the coax. The proper splitter will be provided by your service provider. For the DSL cable, run Cat-6.
I believe the diagram below is what you are trying to do.
The picture below is what I believe you were originally trying to get an answer for. At various time and just recently, I had both Coax and DSL services. I wanted to make sure my new services and cable were working before terminating one of the services.
The Outlet box on the right has two slots, one for RJ45 (DSL) Service IN, and the other one is for coax Service In.
The panel on the left is for ethernet connections on the 2nd floor to a switch which distributes ethernet access to all the rooms upstairs. This was setup and configured before wifi.