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Old 19th July 2021, 13:12   #1
macafee2
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Default RJ45 to RJ11 help required

from what i understand RJ45 is a Lan connection and has 8 wires. RJ11 is smaller and only has 4 wires.

If I have a device with RJ45 can I convert to somehow RJ11?

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Old 19th July 2021, 13:34   #2
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No, why would you want to?


RJ11 is for telecoms/ telephone. RJ45 is for LAN / network cables/ router connections.
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Old 19th July 2021, 14:14   #3
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bit of an update, my socket is RJ11 size, small and has 8 wires.
Plugging into it with the other end of the cable being an RJ45 socket and plugging an RJ45 lan cable into the hub does not give me internet. I think the RJ45 to RJ11 cable that I bought only has 4 wires at the RJ11 end. No Idea about the RJ45 end.


The house I have just got has a bank of 6 RJ45 sockets and in places around the house there are I thought RJ11 sockets. Plug into an RJ11 then from the bank of RJ45 into the hub and hay presto internet... or so I thought. So it seems I may want RJ45 8 wire plug to RJ11 8 wire plug.

Not sure what the difference is between cat 5 and telephone wire.

can I get 8 wire Lan/RJ45 plug to RJ11 8 wire plug ?

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Old 19th July 2021, 14:25   #4
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Quote:
Originally Posted by macafee2 View Post
bit of an update, my socket is RJ11 size, small and has 8 wires.

RJ11 supports a maximum of 6 wires/pins, but the middle four are the only ones normally used. They are the plug which normally plugs into the phone end of the flexible phone lead for telecoms, it is also the type of plug which feeds the broadband telephone wire into routers. The other four ports on a router, the LAN ports, are RJ45.
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Old 19th July 2021, 15:36   #5
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Quote:
Originally Posted by HarryM1BYT View Post
RJ11 supports a maximum of 6 wires/pins, but the middle four are the only ones normally used. They are the plug which normally plugs into the phone end of the flexible phone lead for telecoms, it is also the type of plug which feeds the broadband telephone wire into routers. The other four ports on a router, the LAN ports, are RJ45.
but Harry, my RJ11 has 8 wires and 8 "pins" . If it not RJ11 or RJ45, what is it?

I'll add a picture in a few moments

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Attached Images
File Type: jpg RJ45 n RJ11.jpg (120.8 KB, 47 views)
File Type: jpg rj11.jpg (120.8 KB, 44 views)

Last edited by macafee2; 19th July 2021 at 15:43..
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Old 19th July 2021, 15:50   #6
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Is this the answer? https://www.amazon.co.uk/Longsw-Netw...a-780656214928

That way I have RJ45 at my appliance, at the wall by the appliance, at the bank of outlets by the hub and the hub.


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Old 19th July 2021, 19:12   #7
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Quote:
Originally Posted by macafee2 View Post
but Harry, my RJ11 has 8 wires and 8 "pins" . If it not RJ11 or RJ45, what is it?

I'll add a picture in a few moments

macafee2
An RJ61 plug takes 8 cables which I think is the same size plug as an RJ11.
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