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MrRichP
new user
Reg'd: Tue
Posts: 2
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Hoping someone can confirm this for me either way please.
We have recently installed ADSL broad band. The problem we have is we only have 1 phone socket.
This socket has one phone running from it plus a splitter which then leads to 4 (!) sky boxes (These all have microfilters on them).
The broadband works fine until the extension lead which goes to the different sky boxes is connected. As soon as this is plugged in the ADSL signal drops out.
I am assuming this is because there is to many things for the phone line to handle? We Will the additon of a Ren booster on the main socket allow us to run everything?
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Nigelg
regular
Reg'd: Wed
Posts: 180
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You might try just one filter?, in your master socket, with the phone and Sky boxes all fed from the output of the single filter.
You might also try connecting the Sky boxes one by one?, and see if it's one particular one which is faulty? - modem failure is a common problem in Sky boxes.
For that matter, why do you have the boxes connected to the phone?, particularly four of them!. There's no technical reason (or requirement) for a phone connection, the only reason is contractual ones with Sky, under certain specific circumstances.
BTW, REN is basically concerned with the amount of power available for ringers in the phones, as Sky boxes don't have ringers it's not a concern. They do have a REN value on the box, but it's not actually anywhere near as high as the stated value, the REN number is determined based on both the measured value AND the number of boxes you submit for testing - if you only submit a small number of boxes you can't get a low REN value.
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GeorgeM
new user
Reg'd: Fri
Posts: 6
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I have seven phones (plus a Sky Box) together with a broadband connection. I bought a BT REN booster as I knew the max REN supported was 4 (and have potentially 9 if include Sky box and the ADSL modem).
Unfortunately, my ADSL router/modem periodically 'drops' its connection and this can be restored by disconnecting the REN booster (leaving only the broadband and 1 phone connected). Curiously, it can sometimes work happily for days with all the phones connected via the REN booster - but at other times just won't play ball when the REN booster is connected).
I was interested to learn about REN numbers. Do you think I can overcome the REN problem by switching off the ringers on my phones? (At least 2 of them have switches - and from what you say, the Sky box won't matter). If switching off the ringers will solve the problem, I could always buy one or two new phones with switchable ringers.
I was also interested in your comments about the microfilters. Does each microfilter take up some REN value? I currently have a microfilter on the main BT socket (which feeds my REN booster) plus also microfilters on each of the phone extensions. Might using just the one on the main BT socket help with the REN situation? (and would it still prevent the line noise for each extension)?
Many thanks.
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Nigelg
regular
Reg'd: Wed
Posts: 180
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I'll try and explain the system a bit?.
The incoming BT line has only two wires, they connect to pins 2 and 5 of the six pin socket used.
The BT master socket is the only one that contains any components, these are a 1.8uF capacitor between pins 2 and 3, a surge suppression component across the incoming line (pins 2 and 5), and (optionally) a 470 Kohm resistor between pins 3 and 5.
The sockets in the house are all connected together in parallel by three wires, on pins 2, 3, and 5 - although 4 or 6 core cable is usually used, the others don't normally do anything.
The 'bells' in the phones connect between pins 3 and 5, so the 'bells' are all connected in parallel as well, but all fed through the single 1.8uF capacitor in the master socket. This capacitor can only supply a certain amount of power to the 'bells', so once you get two many 'bells' connected to it then some may stop ringing, as there's not enough power for them. The amount of power each phone ringer requires is called the 'Ringer Equivilance Number' or REN.
I've never taken a micro-filter to pieces, but I see no reason why it would have any connection at all to other than pins 2 and 5 (except pin 3 will loop through on the phone side only), so REM shouldn't have any effect on ADSL?.
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SAMXPJ
new user
Reg'd: Tue
Posts: 1
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Hi Nigel, interested in the bt connections, I have just bought a three line phone off e-bay without a manual, its a audioline aub308 that uses a mains adaptor with a 9 volt dc output, do you know which connections these two wires should go to in the phone socket outlet please, thank's Sam.
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Nigelg
regular
Reg'd: Wed
Posts: 180
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Sorry, I've no idea, those sort of things often use the extra unused connections in the sockets in a non-standard way.
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MrRichP
new user
Reg'd: Tue
Posts: 2
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Well we picked up a ren booster for only 13 pounds so thought it would be worth a try. It all works fine with everything connected.
The booster seems to make a clicking sound when the phone rings though, should I be concerened about that?
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BENJ1
new user
Reg'd: Wed
Posts: 1
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Dear Nigel,
I have come across your post as I am looking for an Audlioline AUB308 phone for our office which has broken. Do you have any that you are willing to sell? We need to sort this out quickly so if you are able to please email at removed
Kind regards
Ben
Edited by Hello_There (Wed Jan 09 2008 01:23 PM)
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Hello_There
Moderator
Reg'd: Thu
Posts: 5853
Loc: Here, in my room
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Welcome to the forum Ben.
You have responded to a post from over two years ago, which understandably is out of date.
Also, this forum is for personal home users only. Please note paragraphs 9 and 10 of the forum's Rules & Guidelines and the section "Selling of Goods and Services".
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