DTI RJ45 in/out connection
patoche50
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brupala Posted messages 111984 Registration date Status Membre Last intervention -
brupala Posted messages 111984 Registration date Status Membre Last intervention -
Hello,
having built in 2007, I fought with my electrician to have RJ45 installed instead of the classic T plug.
He still installed a T DTI at the arrival of the PTT network, directly connecting the PTT wire from the house into the DTI box. However, inside the house I have RJ45 sockets.
Issue: it has worked sometimes but now it’s been 2 months without anything.
Recently, he put a RJ45 DTI but without connecting it, telling me he would do it soon!!!!
Can anyone tell me how I should connect on this RJ45 DTI to make it work finally:
- upstream connections of the PTT cable arrival in the RJ45 DTI box
- downstream connections from the DTI to 1 (4 in the long term) RJ45 socket in the house
How can I do checks during installation? (I have a tester)
Thank you for your help, I see this forum works well!
having built in 2007, I fought with my electrician to have RJ45 installed instead of the classic T plug.
He still installed a T DTI at the arrival of the PTT network, directly connecting the PTT wire from the house into the DTI box. However, inside the house I have RJ45 sockets.
Issue: it has worked sometimes but now it’s been 2 months without anything.
Recently, he put a RJ45 DTI but without connecting it, telling me he would do it soon!!!!
Can anyone tell me how I should connect on this RJ45 DTI to make it work finally:
- upstream connections of the PTT cable arrival in the RJ45 DTI box
- downstream connections from the DTI to 1 (4 in the long term) RJ45 socket in the house
How can I do checks during installation? (I have a tester)
Thank you for your help, I see this forum works well!
Configuration: Windows XP Internet Explorer 6.0
6 réponses
Well,
while waiting to see what this DTI RJ45 looks like,
The telephone cable in the house is a standard 4 pairs cable.
Is it a 4 pairs data cable (category 5, 5E, or 6 or grade 3) or a 4 pairs telephone cable (category 3)?
The 4 pairs data cable has the pairs:
orange/white orange
green/white green
blue/white blue
brown/white brown
as indicated on your wall RJ45 sockets.
In that case, the blue/white blue pair must be connected to terminals A and B of your DTI (you can connect 4 in parallel).
If it's "standard" telephone cable, you should have the pairs:
grey/white
blue/clear or blue/pink
yellow/orange
brown/purple
In that case, you should have the white/grey pair connected to 4/5 of the RJ45 and to points A and B of the DTI.
Or, in another logic, the yellow/orange pair.
However,
in a correct installation, a wall RJ45 should be connected to another wall RJ45 located in the communication panel (patch panel) with the 4 pairs correctly connected, according to the colors indicated on both RJ45s.
Then, you use a small RJ45 patch cord between the DTI and the patch socket.
On this cord, you will connect the blue/white blue pair to points A and B of the DTI.
Otherwise, OK, I see these famous DTI RJ45: http://1.download.maison-domotique.com/michaud/VDI_michaud.pdf
These are not the ones installed by FT.
For connecting the DTI: http://goctruc.free.fr/Telephonie/Dti.html
--
and ... There you go!
while waiting to see what this DTI RJ45 looks like,
The telephone cable in the house is a standard 4 pairs cable.
Is it a 4 pairs data cable (category 5, 5E, or 6 or grade 3) or a 4 pairs telephone cable (category 3)?
The 4 pairs data cable has the pairs:
orange/white orange
green/white green
blue/white blue
brown/white brown
as indicated on your wall RJ45 sockets.
In that case, the blue/white blue pair must be connected to terminals A and B of your DTI (you can connect 4 in parallel).
If it's "standard" telephone cable, you should have the pairs:
grey/white
blue/clear or blue/pink
yellow/orange
brown/purple
In that case, you should have the white/grey pair connected to 4/5 of the RJ45 and to points A and B of the DTI.
Or, in another logic, the yellow/orange pair.
However,
in a correct installation, a wall RJ45 should be connected to another wall RJ45 located in the communication panel (patch panel) with the 4 pairs correctly connected, according to the colors indicated on both RJ45s.
Then, you use a small RJ45 patch cord between the DTI and the patch socket.
On this cord, you will connect the blue/white blue pair to points A and B of the DTI.
Otherwise, OK, I see these famous DTI RJ45: http://1.download.maison-domotique.com/michaud/VDI_michaud.pdf
These are not the ones installed by FT.
For connecting the DTI: http://goctruc.free.fr/Telephonie/Dti.html
--
and ... There you go!
Actually, the electrician temporarily connected a standard test DTI (T plug) without securing it properly to the panel. It contains a black cubic module (capacitor?) that is connected.
During my work, a board (something else?) must have fallen on it and it got disconnected. I tried to reconnect it, and it worked intermittently! Maybe a poor contact????
Here are my connections on this socket:
1. incoming PTT cable (4 wires): white and gray wires connected
2. DTI output (T) I have 8 possible connections aligned in 2 rows (A & B) of 4 terminals (1 to 4).
In the house, I have a classic Legrand RJ45 socket (Mosaic series), which I insisted on having the electrician install. He initially said he didn't know how to connect them and would look into it. Delayed in getting back to me, I had to try it myself, and it worked for a while.
It's also a terminal with 2 rows of 4 terminals with color codes this time, like blue-white/blue, same for green brown-orange.
The telephone cable in the house is a standard 4-pair cable.
The electrician recently returned to finish some electrical work and brought me a new DTI with an RJ45 socket and said he would connect it soon since he needs to come back to complete the electrical connections at the panel.
So I have 2 DTIs (T and RJ45) and the T is currently connected.
For photos, I took some last night in dim light, but they are of poor quality. I will retake them this weekend and send them to you next Monday (no internet connection at home, of course!)
Thank you for your help on this forum: I see that your technical advice is of very good quality and your responses are quick!
Have a good day and a great August 15th weekend!
Patrice
During my work, a board (something else?) must have fallen on it and it got disconnected. I tried to reconnect it, and it worked intermittently! Maybe a poor contact????
Here are my connections on this socket:
1. incoming PTT cable (4 wires): white and gray wires connected
2. DTI output (T) I have 8 possible connections aligned in 2 rows (A & B) of 4 terminals (1 to 4).
In the house, I have a classic Legrand RJ45 socket (Mosaic series), which I insisted on having the electrician install. He initially said he didn't know how to connect them and would look into it. Delayed in getting back to me, I had to try it myself, and it worked for a while.
It's also a terminal with 2 rows of 4 terminals with color codes this time, like blue-white/blue, same for green brown-orange.
The telephone cable in the house is a standard 4-pair cable.
The electrician recently returned to finish some electrical work and brought me a new DTI with an RJ45 socket and said he would connect it soon since he needs to come back to complete the electrical connections at the panel.
So I have 2 DTIs (T and RJ45) and the T is currently connected.
For photos, I took some last night in dim light, but they are of poor quality. I will retake them this weekend and send them to you next Monday (no internet connection at home, of course!)
Thank you for your help on this forum: I see that your technical advice is of very good quality and your responses are quick!
Have a good day and a great August 15th weekend!
Patrice
Patoche wrote:
For the 4 pair wire from the house, I’ll check that this evening (I’ll probably lean towards IT... to be confirmed).
For the DTI in T, I have exactly the same model as the one shown in the last photo of the link you sent me (http://goctruc.free.fr/Telephonie/Dti.html plus the black cubic module (RC module).
And I connected my wires to terminal 1 of rows A and B as shown in the photo. Is there a specific order: blue on A and white/blue on B, or the other way around?
Otherwise, could it be this RC module (which I read can cause more issues than benefits) that is causing me trouble?
For my famous RJ45 DTI, CONGRATULATIONS!!! It’s exactly the one mentioned in the Michaud documentation. I’ll send you a photo of the back via email.
My tester is out of order; I’ll buy a new one on Monday to test my cables.
Ultimately, I would like to set up a system as presented in the Michaud documentation with a multi-box communication panel, allowing me to provide TV/phone/internet in all the bedrooms and living room of the house.
Do you know the Michaud, Casanova, Legrand materials... any opinions?
or almost....
--
and ... Here we go!
For the 4 pair wire from the house, I’ll check that this evening (I’ll probably lean towards IT... to be confirmed).
For the DTI in T, I have exactly the same model as the one shown in the last photo of the link you sent me (http://goctruc.free.fr/Telephonie/Dti.html plus the black cubic module (RC module).
And I connected my wires to terminal 1 of rows A and B as shown in the photo. Is there a specific order: blue on A and white/blue on B, or the other way around?
Otherwise, could it be this RC module (which I read can cause more issues than benefits) that is causing me trouble?
For my famous RJ45 DTI, CONGRATULATIONS!!! It’s exactly the one mentioned in the Michaud documentation. I’ll send you a photo of the back via email.
My tester is out of order; I’ll buy a new one on Monday to test my cables.
Ultimately, I would like to set up a system as presented in the Michaud documentation with a multi-box communication panel, allowing me to provide TV/phone/internet in all the bedrooms and living room of the house.
Do you know the Michaud, Casanova, Legrand materials... any opinions?
or almost....
--
and ... Here we go!
personally,
I don't use this equipment, I only know this field generally in terms of principles, not practical implementation.
these are cabling equipment,
so the main criterion is ease of implementation along with the price.
the DTI testing module has much less impact than that of old installations, but you can remove it, especially if you are on total unbundling or naked ADSL, it will never be used, that's for sure.
there's no point in connecting the phone line.
PS.
you posted your email address on the forum, that's very reckless, I'm deleting your message, in any case, I will always be able to read it.
--
and ... There you go!
I don't use this equipment, I only know this field generally in terms of principles, not practical implementation.
these are cabling equipment,
so the main criterion is ease of implementation along with the price.
the DTI testing module has much less impact than that of old installations, but you can remove it, especially if you are on total unbundling or naked ADSL, it will never be used, that's for sure.
there's no point in connecting the phone line.
PS.
you posted your email address on the forum, that's very reckless, I'm deleting your message, in any case, I will always be able to read it.
--
and ... There you go!
Hello,
The DTI is installed by FT, it's the termination of their part.
Why do you have "nothing" on the current installation? That's not normal, it should work at least on the test socket of the DTI.
I've never heard of a DTI with RJ 45.
Do you have photos to describe the thing? You're not confusing it with a master filter, are you?
--
And... There you go!
The DTI is installed by FT, it's the termination of their part.
Why do you have "nothing" on the current installation? That's not normal, it should work at least on the test socket of the DTI.
I've never heard of a DTI with RJ 45.
Do you have photos to describe the thing? You're not confusing it with a master filter, are you?
--
And... There you go!
Hi,
you can connect two wires with any type of socket. What's the point?
It's true that in networking, shielded wires limit losses.
For the phone, if you don't have any special functions at the panel, you only have two wires connected.
You need to check another socket to see the order on the sockets.
It's sure that for 15m, ordinary Ft cable is sufficient. There's no need to make a big deal out of it...
you can connect two wires with any type of socket. What's the point?
It's true that in networking, shielded wires limit losses.
For the phone, if you don't have any special functions at the panel, you only have two wires connected.
You need to check another socket to see the order on the sockets.
It's sure that for 15m, ordinary Ft cable is sufficient. There's no need to make a big deal out of it...