DSL wiring

Shadow-Lord

Hi,

Can anyone tell me how this should be wired for DSL with a monitored alarm.

This is going to be the master socket.

Also where should the extra phone socket be wire onto this.

Solair

Shadow-Lord wrote: »

Hi,

Can anyone tell me how this should be wired for DSL with a monitored alarm.

This is going to be the master socket.

Also where should the extra phone socket be wire onto this.

Phone line : Connect it to L1 and L2 on the back plate. (S1 and S2 are for a second line)
(strip cables and loop around the terminals, leaving no bare cable exposed / touching the other terminal) - polarity doesn't actually matter, but if you have an existing eircom socket, note which was connected to L1 and L2 on that.

Extension wiring: Connect to L1 and L2 on the front plate (with the eircom logo and the 2 sockets) (Screw terminals) ignore R1 (that is only used if you're hardwiring an ancient dial telephone) Also ignore S1, S2 (used if you have a second line only)

Strip about 0.5cm and insert into screw-down terminal and tighten screw.

Alarm wiring:

This explains most of it
http://www.reci.ie/Portals/0/RECIDocuments/technicalinfo/eircominterface.pdf

The alarm wires to the punch-down / IDC connectors (the white block). You need an IDC insertion tool (you can get one in maplins [they're pretty cheap little plastic device]) to connect to these. If you use a screwdriver you will damage the terminals.

The terminals on these are basically blades, you push the cable in and they will slice into the insulation. You don't need to strip the cable. However, you do need to use standard telephone / data cable i.e. CAT5.

The terminals marked "ALARM IN" is where you connect the pair that is feeding the alarm. "ALARM OUT" is where you connect the pair coming back from the alarm.

Normally you would use CAT5 cable so you might use say the Blue pair for IN and the Green pair for out. There's no particular colour scheme, but the Blue pair is normally used as the default pair for a line.

You then snip and remove the two resistors on the back of the plate.

This should complete the circuit and allow the alarm to seize the connection and isolate the extension wiring and the phone jack on the front of the socket, while leaving the DSL port untouched.

That should sort it

With regard to extensions you can daisy chain them, or you can connect them all to a single point in a star configuration. It really doesn't matter. Any RJ11 sockets will do fine, but you're best to ensure they're of reasonable quality.

Again, Maplins has good junction boxes for this kind of thing. Do not use electrical fittings i.e. junctions meant for mains electricity as you will mess up the quality of the signal on the line / introduce noise.

jor el

This is something you should get eircom to do. The master socket, and the phone line up to that point, is their property, and interfering with it is classed as tampering with private property, and as such is illegal.

Shadow-Lord

Solair wrote: »

Phone line : Connect it to L1 and L2 on the back plate. (S1 and S2 are for a second line)

Extension wiring: Connect to L1 and L2 on the front plate (with the eircom logo and the 2 sockets) (Screw terminals) ignore R1 (that is only used if you're hardwiring an ancient dial telephone)

Alarm wiring:

This explains most of it
http://www.reci.ie/Portals/0/RECIDocuments/technicalinfo/eircominterface.pdf

The alarm wires to the punch-down / IDC connectors (the white block). You need an IDC insertion tool (you can get one in maplins [they're pretty cheap little plastic device]) to connect to these. If you use a screwdriver you will damage the terminals.

The terminals on these are basically blades, you push the cable in and they will slice into the insulation. You don't need to strip the cable. However, you do need to use standard telephone / data cable i.e. CAT5.

The terminals marked "ALARM IN" is where you connect the pair that is feeding the alarm. "ALARM OUT" is where you connect the pair coming back from the alarm.

You then snip the resistors marked AL (I think it's both resistors)

This should complete the circuit and allow the alarm to seize the connection and isolate the extension wiring and the phone jack on the front of the socket, while leaving the DSL port untouched.

Thanks for all that info, that's just what I was looking for.

Shadow-Lord

jor el wrote: »

This is something you should get eircom to do. The master socket, and the phone line up to that point, is their property, and interfering with it is classed as tampering with private property, and as such is illegal.

Do you work for Eircon.

Solair

Shadow-Lord wrote: »

Do you work for Eircon.

It's not the UK and eircom really don't give a **** provided you don't come crying to them if it goes wrong

Ireland doesn't use the complicated master-socket arrangement that is used in the UK so there is really nothing very difficult about phone wiring here. It's all quite DIY friendly.

The UK has all sorts of complications with 3rd wire ringing, polarity reversals etc etc. Our system is just like North America i.e. 2 wires carry everything and there's absolutely no fuss. It doesn't even matter which way the wires are connected, provided that they're both connected your phone and DSL will work fine!

All the eircom master socket does is allow a you to isolate your internal wiring if there's a fault so that eircom can prove that it's your problem and not theirs and invoice you accordingly

In fact, in older Irish installations i.e. those with the beige Telecom Eireann or P&T socket, there is no demarkation between internal wiring and network wiring at all. The line just comes in and the sockets are just connected to it in whatever order was most practical at the time.

Even after the introduction of the current demarkation sockets, many eircom engineers just continued to wire in extensions as normal i.e. they're often just wired straight to the line at the main junction box in the hall etc etc.

Really, I wouldn't worry about it too much as long as there's some kind of a socket on the end of the line you're fine.

The main thing is that you should absolutely never use BT master sockets on an Irish line as you can cause problems with line test facilities etc.

One word of warning:

If you are doing any telephone wiring, it's always a good idea to divert your calls to your mobile (or another phone) first. The ringing voltage is about 75V to 80V and it can give you a bit of a buzz!

*21*(phone number)# to setup
#21# to cancel.

Also never strip phone wire with your teeth LOL

jor el

Shadow-Lord wrote: »

Do you work for Eircon.

Do you?

center15

jor el wrote: »

This is something you should get eircom to do. The master socket, and the phone line up to that point, is their property, and interfering with it is classed as tampering with private property, and as such is illegal.

Actually that's incorrect 3 different Eircom engineers and Eircom customer support have stated directly to me it's actually only to the brown box that your line connects to indoors not to the main socket. Although I know it's used to be to the main line however this is not covered this far anymore.

n0brain3r

Yeah Eircom will only troubleshoot to the junction box outside your house mines under the ESB meter. I've seen this countless times with clients where Eircom will only test the line to the exterior of the premises any further is your responsibility they class it as your property.

Solair

center15 wrote: »

Actually that's incorrect 3 different Eircom engineers and Eircom customer support have stated directly to me it's actually only to the brown box that your line connects to indoors not to the main socket. Although I know it's used to be to the main line however this is not covered this far anymore.

Eircom are definitely not as strict as BT are in the UK about what a customer can or can't do with their line.

The eircom network usually starts at a small junction box which is similar in size to a bar of soap. You'll usually find this in the attic, the hallway or some other convenient location where the line enters the house. Depending on the era, it could be brown, beige, grey, rounded, square etc. It's quite obvious what it's for though.

The Eircom wiring (which looks much heavier than your typical CAT5) will terminate on lugs on one side and your internal wiring (CAT5 type stuff, or older) will start on the other pair of connectors.

In some of the newest installations the line will just terminate directly onto the back of one of the sockets described above.

There is really nothing you can do to damage the network by wiring your own extensions, so they don't worry about it too much!

It's not like a cable TV system where you could accidentally feed stuff back into the network by removing / bypassing the isolator socket / replacing it with your own.

Telephone networks local wiring systems are VERY simple ... two wires go from your phone right the way back to a line card in the local exchange and that's it.

There is ABSOLUTELY nothing amazingly special about an eircom socket compared to any other type of RJ11 socket. They have some extra (unused) circuitry which provides backwards compatibility with some very old 3rd wire ringer systems i.e. old black dial phones. This was put into the sockets so that they could be installed into older wiring in existing houses back in the 1970s/80s without having to rip out the entire old installation. Although, in reality, they did rip out the old installations completely.

There are also some jumpers which allowed them to be used for more complicated setups e.g. versions of ISDN, privacy circuits, etc. These were almost never used.

Other than that they're just a straight, simple 6-way RJ12 socket and only the centre two terminals are ever wired.

There are no complex test circuits, no lightening arrestors or anything else in these sockets.

The resistor in the socket allows the exchange's line test facility to check the line's intact even if there's no phone plugged in. This is pretty much the only purpose the master socket serves.

The newest types with the faceplates are just cleverly designed to cope with a bit of structured wiring i.e. for demarkation between the network and the end user's wiring, coping with DSL filtering for alarms and coping with ISDN analogue-digital converter boxes i.e. eircom HiSpeed.

But, 99.999% of the time they're just wired up as simple RJ11/RJ12 jacks.

Eircom sockets won't do anything to improve your DSL signal etc other than provide you with a central filter in the case of the setup that the OP is trying to put together.

They're also possibly a big higher quality than most of the cheap stuff you'll pick up in a hardware store.

jor el

center15 wrote: »

Actually that's incorrect 3 different Eircom engineers and Eircom customer support have stated directly to me it's actually only to the brown box that your line connects to indoors not to the main socket. Although I know it's used to be to the main line however this is not covered this far anymore.

Any line I've ever had, and that would be 5, have been eircom's responsibility all the way to the main socket. This was the only point of entry to the house for the phone line, apart from somewhere under the road or up a pole.

There's no way to know if this is the case for the OP, but it could well be, and tampering with it could lead to trouble. Maybe he'll be OK, but if that is eircom's then they will do all the correct wiring for him. That's why you pay line rental.

Shadow-Lord

jor el wrote: »

Any line I've ever had, and that would be 5, have been eircom's responsibility all the way to the main socket. This was the only point of entry to the house for the phone line, apart from somewhere under the road or up a pole.

There's no way to know if this is the case for the OP, but it could well be, and tampering with it could lead to trouble. Maybe he'll be OK, but if that is eircom's then they will do all the correct wiring for him. That's why you pay line rental.

This master socket is not eircoms responsibility. Theirs stops at the brown box before this.

Your line rental does not cover eircom doing the wiring of an eircom dsl filter box.
They charge around €89 for this.

Solair

They do cover you for maintenance of the socket, but basically only if it blows up ! That's not very likely

monthehoops

Hey.

I've recently gotten eFibre installed onsite and I pretty much just got the engineer to drop a cable for me and leave an NTU there so I could terminate it myself - it's a temporary site with no power when he dropped it.

The NTU is one of these:

https://us.v-cdn.net/6034073/uploads/attachments/33783/15571.jpg

My cable has blue, white, green and black wires. The blue and white are my DSL I believe. Do these go into L1 and L2 on the NTU? I couldn't seem to get anything off the DSL once I wire them into L1 & L2

What do I do with the green and black wires?

ED E

Find out which have 50v on em. They're the line. If he just did the line provide then you may not be setup at the cab yet

degsie

Beware of zombie threads!

monthehoops

ED E wrote: »

Find out which have 50v on em. They're the line. If he just did the line provide then you may not be setup at the cab yet

It's at the cab alright. Thanks!

monthehoops

degsie wrote: »

Beware of zombie threads!

I know but I thought I'd get a bollocking for not searching.