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#1
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I need to remake my internal phone wiring - the wiring I have is old
and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. What I want to do in this age of ADSL and DECT is simplify to a single master socket by the PC with the phone base station & ADSL modem/router plugged in. I understand the connections well enough - I'm going to tear everything out from the initial junction box onwards and start again. My question is this: is there any reason I shouldn't use Cat5e cable for this? I'm not going for structured cabling (tempting but I can't really justify the effort and cost of retrofitting it), but I just happen to have a lot of Cat5e cable. AFAIK it's far superior to bell wire, but is there any problem I haven't thought of? |
#2
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![]() "John Carlyle-Clarke" wrote ... I need to remake my internal phone wiring - the wiring I have is old and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. What I want to do in this age of ADSL and DECT is simplify to a single master socket by the PC with the phone base station & ADSL modem/router plugged in. I understand the connections well enough - I'm going to tear everything out from the initial junction box onwards and start again. My question is this: is there any reason I shouldn't use Cat5e cable for this? I'm not going for structured cabling (tempting but I can't really justify the effort and cost of retrofitting it), but I just happen to have a lot of Cat5e cable. AFAIK it's far superior to bell wire, but is there any problem I haven't thought of? No problems apart from it being slightly thicker over all than 'phone wire, and a bit lumpier in appearance - if it's going to be out of sight, no problem. I think the purple LSF variant's quite pretty, too... for fixed wiring, make sure it's solid core, IDCs don't take stranded reliably. Dave H. (The engineer formerly known as Homeless) |
#3
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"Dave H." wrote in
: "John Carlyle-Clarke" wrote ... I need to remake my internal phone wiring [...] My question is this: is there any reason I shouldn't use Cat5e cable for this? No problems apart from it being slightly thicker over all than 'phone wire, and a bit lumpier in appearance - if it's going to be out of sight, no problem. I think the purple LSF variant's quite pretty, too... for fixed wiring, make sure it's solid core, IDCs don't take stranded reliably. Thanks Dave. I do have some phone wire I bought some time ago, but it's very, very thin. I've heard mention of "ADSL compatible phone wire". Do you know if it really makes a difference? I can't imagine that it would be that significant compared to the 4 miles of copper between my house and the exchange, but I could be wrong. The existing wiring is surface, and I think my new stuff will be too, and I had considered that Cat5 is a bit more visible. |
#4
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John Carlyle-Clarke wrote:
Thanks Dave. I do have some phone wire I bought some time ago, but it's very, very thin. I've heard mention of "ADSL compatible phone wire". Do you know if it really makes a difference? Only to your pocket! I can't imagine that it would be that significant compared to the 4 miles of copper between my house and the exchange, Precicely... The existing wiring is surface, and I think my new stuff will be too, and I had considered that Cat5 is a bit more visible. It does not make that much difference really. If needs be you can get four lines down one cat5, so you also won't need another cable if you ever added a line. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#5
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![]() John, Something I've done which might be interesting for you too, is to have the adsl cable only connected to BT using the device described below in place of your current modem/router http://www.adslguide.org.uk/hardware...2/zoom-x5v.asp The master DECT station plugs into the back of the Zoom device and you have no telephone cable at all, but you do have VOIP on every handset in your home and garden. The handsets switch into VOIP mode at the press of a key and should the router power fail or be switched off, then the telephone reverts to standard BT connection mode. It comes ready configured for a VOIP service called Global Village, which is SIP compliant and able to talk to other SIP compliant services at no charge, though you can reconfigure for another supplier. I use Sipgate. What it won't do is get you connected to non SIP compliant services such as Skype. Jeff John Carlyle-Clarke wrote: "Dave H." wrote in : "John Carlyle-Clarke" wrote ... I need to remake my internal phone wiring [...] My question is this: is there any reason I shouldn't use Cat5e cable for this? No problems apart from it being slightly thicker over all than 'phone wire, and a bit lumpier in appearance - if it's going to be out of sight, no problem. I think the purple LSF variant's quite pretty, too... for fixed wiring, make sure it's solid core, IDCs don't take stranded reliably. Thanks Dave. I do have some phone wire I bought some time ago, but it's very, very thin. I've heard mention of "ADSL compatible phone wire". Do you know if it really makes a difference? I can't imagine that it would be that significant compared to the 4 miles of copper between my house and the exchange, but I could be wrong. The existing wiring is surface, and I think my new stuff will be too, and I had considered that Cat5 is a bit more visible. |
#7
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![]() I need to remake my internal phone wiring - the wiring I have is old and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. What I want to do in this age of ADSL and DECT is simplify to a single master socket by the PC with the phone base station & ADSL modem/router plugged in. I understand the connections well enough - I'm going to tear everything out from the initial junction box onwards and start again. My question is this: is there any reason I shouldn't use Cat5e cable for this? I'm not going for structured cabling (tempting but I can't really justify the effort and cost of retrofitting it), but I just happen to have a lot of Cat5e cable. AFAIK it's far superior to bell wire, but is there any problem I haven't thought of? The proper cable to use is to the BT CW13308 specification. Cat5E is usually OK because they are both twisted pair cables which is the crucial thing. You need to start at the BT socket. Is the master socket an NTE5 or the older Plan 1? Peter Crosland |
#8
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The proper cable to use is to the BT CW13308 specification. Cat5E is
usually OK because they are both twisted pair cables which is the crucial thing. You need to start at the BT socket. Is the master socket an NTE5 or the older Plan 1? CW 1308! Peter Crosland |
#9
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In message , Peter
Crosland writes The proper cable to use is to the BT CW13308 specification. Cat5E is usually CW1308 ?? OK because they are both twisted pair cables which is the crucial thing. Are they? I have a reel of CW1308 that's not twisted, and when I looked a few years back was unable to find a spec that said it should be twisted. -- Due to the very painful lack of quoting Google promotes, all Usenet posts originating from Google users are now deleted unseen, this means if you post from Google I won't see it. N.B. the preceding sig is copyright free, feel free to copy it. == bof at bof dot me dot uk == |
#10
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bof wrote:
In message , Peter Crosland writes The proper cable to use is to the BT CW13308 specification. Cat5E is usually CW1308 ?? OK because they are both twisted pair cables which is the crucial thing. Are they? I have a reel of CW1308 that's not twisted, and when I looked a few years back was unable to find a spec that said it should be twisted. Its not *as* twisted as cat5, but it is still twisted. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#11
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The proper cable to use is to the BT CW13308 specification. Cat5E is
usually CW1308 ??# See my correction! OK because they are both twisted pair cables which is the crucial thing. Are they? I have a reel of CW1308 that's not twisted, and when I looked a few years back was unable to find a spec that said it should be twisted. Its not *as* twisted as cat5, but it is still twisted. Assuming it really is genuine CW1308 specification and not somebody passing something else off as CW1308, it is what BT use and therefore one has to assume it is fit for purpose! Likewise if the cable you have is genuine Cat5e specification that will do as well. Using anything but a proper twisted pair cable can potentially cause problems. Bell wire is definitely a no no. Peter Crosland |
#12
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In message , John
Rumm writes bof wrote: In message , Peter Crosland writes The proper cable to use is to the BT CW13308 specification. Cat5E is usually CW1308 ?? OK because they are both twisted pair cables which is the crucial thing. Are they? I have a reel of CW1308 that's not twisted, and when I looked a few years back was unable to find a spec that said it should be twisted. Its not *as* twisted as cat5, but it is still twisted. The reel of CW108 I have has no twists (or at least the were none present in the 1m and then 2m sections I stripped back to check). Is there a spec that says CW1308 must be twisted? When I looked some years back I couldn't find one, lots of other specs for CW1308, but couldn't find anything about twists. -- Due to the very painful lack of quoting Google promotes, all Usenet posts originating from Google users are now deleted unseen, this means if you post from Google I won't see it. N.B. the preceding sig is copyright free, feel free to copy it. == bof at bof dot me dot uk == |
#13
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bof wrote:
Is there a spec that says CW1308 must be twisted? Yes, CW 1308 _is_ the BT specification. Go to the RS web site (http://rswww.com) and do a simple search for "cw1308", which will bring up a list of all the '1308 cables they sell. Click on the PDF icon against any product and you can download a copy of the actual BT spec. - CW 1308 Issue 8. Note the requirements for lay length (section 4.2) and reference to twists in section 5. -- Andy |
#14
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On 13 Jun 2006 09:15:03 GMT someone who may be "John Carlyle-Clarke"
wrote this:- What I want to do in this age of ADSL and DECT is simplify to a single master socket by the PC with the phone base station & ADSL modem/router plugged in. Assuming you have an NTE5 master socket... Do remember that only BT are supposed to touch the bottom half of the master socket (and the external wiring that connects to it). As a result it is likely to remain where it is at the moment. From that point you can do what you like. Personally I would get a filter from http://www.clarity.it/acatalog/ADSL_Installation.html and put that on the master socket. From there I would wire the filtered terminals to the telephone extension sockets and take an unfiltered pair to a suitable socket for the ADSL router. If I didn't have any cable I would probably get a reel of telephone cable and use that for the extensions. If I was putting a telephone socket beside the ADSL socket this needs two and a half pairs, say three pairs. If my telephone cable was only two pair then I might use Cat 5, simply for the extra pairs. Alternatively three pair telephone cable should be fine. Avoid sharp bends and don't staple the cable. It all depends on what cable you have in and what is available to you. As you have a lot of Cat 5 I would use that. Do stick to the standard telephone colour scheme. I would use the brown pair for the unfiltered ADSL signal, as it is not in the standard one line telephone wiring scheme. http://www.clarity.it/telecoms/adsl_faceplate.htm and http://www.clarity.it/telecoms/extensions.htm have further information. -- David Hansen, Edinburgh I will *always* explain revoked encryption keys, unless RIP prevents me http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54 |
#15
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David Hansen wrote:
cable and use that for the extensions. If I was putting a telephone socket beside the ADSL socket this needs two and a half pairs, say three pairs. If my telephone cable was only two pair then I might use Cat 5, simply for the extra pairs. Alternatively three pair telephone cable should be fine. Avoid sharp bends and don't staple the cable. Do you mean all these pairs are needed just for the phone, or something else? The UK phone system uses 3 wires, with a lot of equipment working on only 2 wires. If desired its elementary to run a 2 wire system and add a capacitor at the end to give a standard 3 wire outlet. NT |
#16
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On 14 Jun 2006 03:15:47 -0700 someone who may be
wrote this:- cable and use that for the extensions. If I was putting a telephone socket beside the ADSL socket this needs two and a half pairs, Do you mean all these pairs are needed just for the phone, or something else? My mistake, one and a half pairs. -- David Hansen, Edinburgh I will *always* explain revoked encryption keys, unless RIP prevents me http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54 |
#17
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![]() "John Carlyle-Clarke" wrote in message .. . I need to remake my internal phone wiring - the wiring I have is old and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. What I want to do in this age of ADSL and DECT is simplify to a single master socket by the PC with the phone base station & ADSL modem/router plugged in. If you intend moving your master socket, you might want to think twice about using cable that was obviously not provided by BT. uk.telecom might be a better ng. -- Michael Chare |
#18
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John Carlyle-Clarke wrote:
I need to remake my internal phone wiring - the wiring I have is old and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. What I want to do in this age of ADSL and DECT is simplify to a single master socket by the PC with the phone base station & ADSL modem/router plugged in. I understand the connections well enough - I'm going to tear everything out from the initial junction box onwards and start again. My question is this: is there any reason I shouldn't use Cat5e cable for this? None at all. |
#19
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"John Carlyle-Clarke" wrote in
: I need to remake my internal phone wiring - the wiring I have is old and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. Thanks for all the feedback. I wanted to post a diagram of my wiring for comment, but I can't find a decent free program to draw one, so I'll describe it briefly if I may. The drop wire comes down to the house, into an old GPO 4 terminal junction box. The incoming cable is four core (Black + Brown are the current A and B, and White and Orange used to be the second line). From there a 4 core cable goes immediately out of the house, round through the porch, back in and then over some walls to an 8-terminal GPO junction. This cable is badly damaged. From this, standard BT extension wires take the current line to two old style sockets, one of which is the old style master (Plan 1). Another standard cable carries the current line plus the now disconnected second line around the room to another set of wallboxes. Here there is a double new style socket for the current line, plus a defunct NTE5 for the second line. From there, one of those customer fitted plug-in extensions goes round to the PC. This is the only socket in use. What I'd like to end up with is just the new NTE5, plus the Solwise ADSL faceplace I have to go on it, next to the PC. As I say, I know how to wire this up. All other cables and junctions (apart from the first GPO one) can come out. Am I likely to get in trouble with BT for moving and changing the master socket? Would I be better to use the correct BT cable instead of Cat5e to make it look proper, as it were? |
#20
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On 17 Jun 2006 20:01:12 GMT, John Carlyle-Clarke wrote:
Am I likely to get in trouble with BT for moving and changing the master socket? Probably not but BT do have records of lines that have not been converted to NTE5. Of course you could just say they have their records crossed between the defunct line and the current one. Would I be better to use the correct BT cable instead of Cat5e to make it look proper, as it were? Yes, CW1308 is cheap and if strip all the old crap out back to that first box and put CW1308 in neatly it'll probably do wonders for your ADSL speed... (mainly due to the removal of the crap rather than cable type). It'll also look genuine to any BT bod that visits. -- Cheers Dave. pam is missing e-mail |
#21
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Dave Liquorice wrote:
It'll also look genuine to any BT bod that visits. As long as you staple it to the wall and don't use cable clips ;-) -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#22
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On Sun, 18 Jun 2006 03:23:35 +0100, John Rumm wrote:
As long as you staple it to the wall and don't use cable clips ;-) True enough, I have a proper cable stapler so tend to forget that. Clips look ugly and are slow. -- Cheers Dave. pam is missing e-mail |
#23
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"Dave Liquorice" wrote in
ll.com: Yes, CW1308 is cheap... Where can I buy it? B&Q ? What about the staples? |
#24
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John Carlyle-Clarke wrote:
"Dave Liquorice" wrote in ll.com: Yes, CW1308 is cheap... Where can I buy it? B&Q ? What about the staples? The cable, anywhere... CPC will do you a 100m roll for about £11. For the stapler (and I agree with Dave, *much* faster and neater than cable clips), try toolstation: http://www.toolstation.com/?r=p&feature=57437 (that will do cat5 and telephone style cable) -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#25
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On 18 Jun 2006 10:23:56 GMT, John Carlyle-Clarke wrote:
Yes, CW1308 is cheap... Where can I buy it? B&Q ? Yep. Shouldn't pay more than £15 for 100m of 3 pair and even that would be expensive. What about the staples? They might be harder to get hold of, though any decent electrical wholesaler should have something suitable and the gun of course. -- Cheers Dave. pam is missing e-mail |
#26
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John Carlyle-Clarke wrote:
"John Carlyle-Clarke" wrote in : I need to remake my internal phone wiring - the wiring I have is old and damaged, and also very byzantine with redundant junction boxen and sockets (I think there used to be two or more lines incoming) and extension cables running over almost every architrave in the house. Thanks for all the feedback. I wanted to post a diagram of my wiring for comment, but I can't find a decent free program to draw one, so I'll describe it briefly if I may. The drop wire comes down to the house, into an old GPO 4 terminal junction box. The incoming cable is four core (Black + Brown are the current A and B, and White and Orange used to be the second line). From there a 4 core cable goes immediately out of the house, round through the porch, back in and then over some walls to an 8-terminal GPO junction. This cable is badly damaged. From this, standard BT extension wires take the current line to two old style sockets, one of which is the old style master (Plan 1). Another standard cable carries the current line plus the now disconnected second line around the room to another set of wallboxes. Here there is a double new style socket for the current line, plus a defunct NTE5 for the second line. From there, one of those customer fitted plug-in extensions goes round to the PC. This is the only socket in use. What I'd like to end up with is just the new NTE5, plus the Solwise ADSL faceplace I have to go on it, next to the PC. As I say, I know how to wire this up. All other cables and junctions (apart from the first GPO one) can come out. Am I likely to get in trouble with BT for moving and changing the master socket? Would I be better to use the correct BT cable instead of Cat5e to make it look proper, as it were? I put an adaptor on our master socket and patched it into my cat5e structured cabling. I can patch the phone through to any room. I've currently got it patched through to the loft where my PC is and I use a splitter to connect the phone and the broadband router. Both are wireless so I can use other phones /PCs throughout the house with no extra wiring required. ChrisJ |
#27
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ChrisJ wrote in
: I put an adaptor on our master socket and patched it into my cat5e structured cabling. Structured cabling is the ideal solution, I agree, but I can't really justify the expense of retrofitting it to a house when I don't need audio/video distribution, and I have DECT phones and wireless networking is cheap. I *love* structured cabling, and I'd fit it to any new house or renovation. |
#28
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John Carlyle-Clarke wrote:
Am I likely to get in trouble with BT for moving and changing the master socket? Would I be better to use the correct BT cable instead of Cat5e to make it look proper, as it were? No. Not really. The situations is roughly - BT reserve the right to charge you to do it properly (and for consequential damage if e.g. you stuff 5KV up their phone wires and wreck the exchange), if there is a fault and its due to non standard stuff having been bodged in. - On the ground, the average BT engineer is a nice bloke, and, if supplied with coffee tea and biscuits and intelligent discussion of the World Cup, won't bat an eyelid at any installation that palpably works and is well put together. I had an incoming overhead, rewired by ME, to a 4 screw junction box and some cat 5 going from there to a pair of masters and thence to a PABX and router. When a tipper lorry took out the overhead, they replaced it more or less as was, apart from using a BT proper junction box to connect into my CAT 5..;-) |
#29
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The Natural Philosopher wrote in
: - On the ground, the average BT engineer is a nice bloke, and, if supplied with coffee tea and biscuits and intelligent discussion of the World Cup, won't bat an eyelid at any installation that palpably works and is well put together. That has been my experience too, with them even bending the rules about what is internal and what is external so as not to have BT charge me. Most of them are ex-BT people working on a contract anyway, it seems, so it's all the same to them. |
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