RJ45 to RJ11 (phone connector)

rubyrara

Morning folks....just looking for some help in sourcing a RJ45 (network cable) to RJ11 (regular phone line) connector. My flat is all pre-wired for home network, but it requires this connector to plug in my ADSL splitter.

I have tried Maplin, Staples, Office and all the other peripherals shops I can think of but to no avail. Had a quick look on the net aswell.

The last one I saw was a small white box about 5cm long with the RJ45 in one end to plug into the wall and a hole in the other end for my ADSL filter to plug into.

Any help gratefully received!

SteveJH200

Just do a search on ebay - this is what I found in seconds:

http://www.ebay.co.uk/itm/BROADBAND-MODEM-RJ45-RJ11-1M-LEAD-CABLE-WHITE-/300592496413?pt=UK_Computing_CablesConnectors_RL&hash=item45fcb57f1d

robmar0se

Its possible but most unlikely. Ethernet RJ45 requires 8 wires to operate properly, whereas RJ11 is a 4 wire system (of which only 2 are normally required). You can use Cat5/6 cable for phones as you just need 2 wires to connect the phone for home systems.

So assuming you want to use ADSL, you will need an eight wire system, so any adapter from rj45 to rj11 wont work.

The normal connection is microfilter into BT type socket, rj11 phone cable into filter to router, then rj45 from router to PC/laptop.

It would be wrong to have a house prewired for a network using rj11 sockets. I would remove one of the rj11 faceplates and check the wiring, if it is telephone cable then it isn't a home network, if it is cat5 cable then you would be better off changing the faceplates for rj45.

Also check where the phone enters the house/flat, there should be an NTE5 master socket (some older dwellings don't have these). Are the rj11 sockets connected to the master? If so it is a simple extension system - many countries other than the UK use rj11 plug/sockets for their domestic phones (if the previous residents were from abroad, this might explain why you have rj11 sockets)

ddoris

Doesn't a "splitter" plug into a phone socket ? Not a network, lan, socket.
You usually get a cable with the modem , but there are loads via google.

rubyrara

There is a master socket where the phone comes into the flat, to which my ADSL splitter is in now, with the phone and modem plugged in. However, its in a storage cupboard hence not too handy for answering the phone. That has the usual phone type connector. However, the connector in the living room where I want my phone and router to be is a RJ45 faceplate. A converter apparently came with the property but have no clue where it is now.

Whats a CAT5 cable?

robmar0se

Cat5 = http://en.wikipedia.org/wiki/Category_5_cable

You can run the phone over the rj45/cat5 cable network - never done it myself - not sure if/how you can simultaneously run the adsl network over it at the same time. You would need a couple of the cable adapters posted by another above.

Best way to resolve yr problem with the phone is to get a cordless phone with at least one satellite.

DVardysShadow

rubyrara wrote: »

There is a master socket where the phone comes into the flat, to which my ADSL splitter is in now, with the phone and modem plugged in. However, its in a storage cupboard hence not too handy for answering the phone. That has the usual phone type connector. However, the connector in the living room where I want my phone and router to be is a RJ45 faceplate. A converter apparently came with the property but have no clue where it is now.

Whats a CAT5 cable?

RJ45 is not a regular phone line connector in this country. The BT connectors are not part of the RJ series. So is it really RJ45 you require?

If it is RJ45, which is 8 pins, an RJ11 [4 pins] will plug straight in, but whether the wiring is correct is another issue.

TimothyEBaldwin

ADSL requires only one pair, which is normally shared with traditional telephone. robmar0se is confusing ADSL with Ethernet.

If your RJ45 socket is wired to another RJ45 socket, as is most common then I would expect any matching pairs of adapters to work. Are you confusing RJ11 with British Standard BS6312, which is normally used for telephone wall sockets in the UK?

CountryGoose

Really need to understand what "wired for a home network means".

Do you have a socket in one room which is connected to another by network cable and terminated in boxes with RJ45s? Or do you have loads of sockets, one in each room that come back to a central location with a "patch panel", that looks a little like an old telephone exchange with rows of RJ45 sockets.

I suspect that you have the former and you should be able to get away with a couple of these:

http://www.amazon.co.uk/Socket-RJ45-Secondary-Telephone-Adapter/dp/B0021JNY38

and one of these from the output of the ADSL Filter to the first adapter

http://www.amazon.co.uk/BT-Plug-Cable-meter---TEL-59/dp/B0013731GO/ref=sr_1_10?s=electronics&ie=UTF8&qid=1314621099&sr=1-10

Plug one in each RJ45 and assuming they are connected in a straight line, you'll be OK.

robmar0se

TimothyEBaldwin wrote: »

ADSL requires only one pair, which is normally shared with traditional telephone. robmar0se is confusing ADSL with Ethernet.

If your RJ45 socket is wired to another RJ45 socket, as is most common then I would expect any matching pairs of adapters to work. Are you confusing RJ11 with British Standard BS6312, which is normally used for telephone wall sockets in the UK?

I think everyone is getting confused. I believe you said that you have the nt5e box in you closet with the router attached, which isn't very convenient for the phone system. You also said that you have a system of RJ45 sockets around the house, and you wanted to know if you could use these for your phones?

If we get down to the pratical aspect rather than arguing semantics, there is one piece of info missing in your query, and that is how you intend to connect to the net, do we assume that your router is in the closet and you connect via wireless, or do you plan to use the ethernet network for the net as well? If the latter and you want to use the ethernet network for the net and phone, I haven't done this, guess it can be done, but may need extra hardware/software - anyone care to comment? Frankly as I said before it might be easier just to get a cordless phone.

If you do connect wirelessly, then again theyou could use a cordless phone, or you could try a couple of the adapters mentioned by Steve AH200 and try piggy backing on your rj45 cabling.

[Deleted User]

If you're pro, you can splice the CAT5E cable and use only 2 of the unused (PoE) strands for your POTS.