Changing Cat5e pre installed from phone line to ethernet

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May 28, 2018
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Ok so I am changing my pre installed cat5e from phone line to ethernet.

I am changing the face plate as well as the jacks.

I’ve bought a switch that I will put in the basement that will connect all these wall adapters.

My question is if I connect a wall adapter to the cat5e in the wall and then an Ethernet cable from that wall adapter to the router. Will that give my switch internet? Or would I need a coupler to connect the wire in the wall and a new cat5e to the router?

I can do either one but I don’t have wall face plate for the coupler
 
Also if the electrician did a good job these cables would be somewhere connected and one cable from the connection to the box outside. I just need to find that connection point somehow and put a switch there.

The only thing is everything is in the walls so I can’t follow any of the wires anywhere without breaking stuff. If you have an alternative solution please let me know.
 


At some point, something has to come out of the wall to connect to some service.

If they are "connected" somewhere, and then a single cable leads to the telco termination box on the outside of your house....this does not bode well for using that wiring for ethernet.

If you take off a couple of the room wall plates...what wiring leads off from that?
2 wires, 4, 8?
 


That link has nothing to do with your house wiring.
 
Ok so I found about 7 cat5e cables in the basement wall and and added rj45 adapters to the other end. When I went upstairs and counted the phone jacks there’s about 2 in each room so there’s about 11. So I changed the keystone jack and wall plates for both jacks in the room with the router. Then I connected an Ethernet from those to the router and the switch or router does not show connection/green light in those ports. Wires are going through walls to basement so can’t verify which one is which. Also both the keystone jack and rj45 adapters connected are in the B wiring thing. Did I do something wrong or these wires were not a part of the 7 I found? Is there anything I need to do like add a extender instead of keystone jack and connect to router? Or the wire from basement connected to keystone and a separate enternet connected to the jack/keystone to router should give the switch internet?
 
Wiring will need to be A. B was used by very old AT&T systems, is now out of use there, but is still somewhat used in patch wires if using 2x pc's and the primary is the source of internet for the second.

Finding each wire going to what room is relatively simple. Connections are open-ended until used, so all it takes is a piece of wire in a connector, tie all the wires together. Make sure every other jack is unplugged. Then use a multi-meter set to continuity on each of any 2 wires in each cat5. The wire that beeps is the one plugged into your jumper. Then label the cat5, move the jumper to another room and check the other 6. This'll tell you what wire goes where.
 
Ok so ur saying I need to follow A for both to get any type of signal?

This is what I am using for the rj connectors.

https://serverfault.com/questions/12681/how-to-wire-up-a-rj45-socket-with-cat-5-cable

And this for the keystone jack. I’m using the B one based off of YouTube videos and pic on side is jacks.

https://www.amazon.com/Cable-Matters-25-Pack-Keystone-Punch-Down/dp/B00IO3HGUM


So I have cat 5e cable in the basement connected to switch and the other side to the keystone jack in a room in the B config on both sides. Then a Ethernet bought from the store connected to the jack and router. Shouldn’t this provide internet/connection to switch from router?

All my cat 5e are connected to switch in the basement but the switch does not show any green light. If a keystone jack is connected on the other side it should show a connection?
 
Wire is wire, it could care less about color codes. All that's important is that things are all the same. So if you use B for your infrastructure, use B on both ends. You can use A patch cables with B infrastructure as both ends match up electrically, regardless of color.

What you did say was there was a bunch of wires in the basement. You need to make sure you have 2 things. First, the right wire. Second is that wire in the room must be a direct connection, if it's a branch where only 2 pair was hooked up, you'll be missing the other 2 pair, so won't get your connection at the switch.
 
So I cannot connect the cat5e in the wall that’s connected to switch and router to keystone jack and then use a second cat5e from there to router to get the switch internet? The wire in the wall is not long enough to reach the router itself. I do have a coupler. Can I use that and extend the wire in the wall and connect it to the router?

So what you saying in I cannot have a keystone jack in between router and switch?
 
So if I did wiring correct on both sides it seems like I didn’t find the cable that was going to the room with the router. Just ordered the cable tester and start verifying where these cables go to. Also will open another portion of plywood in the basement to verify if there are any additional cables