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Post by lurcher on Apr 1, 2023 17:21:05 GMT 1
A few years ago, while fixing a telephone fault, an engineer installed a new external and an internal junction box. I would like to open the internal one to make some wiring improvements. I am hoping one of the members has some experience on this particular box and could give me the procedure to open it without any damage. The photo of the box should appear in my post. I would be grateful if you can offer some advice before I use my usual techniques with the possibility of damaging the box. Thank you.  |
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JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 2,014
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Post by JohnnyD on Apr 1, 2023 17:23:31 GMT 1
Mine doesn't look like that ....sorry, its the older screw type, is it just click on and you prise it off (look for a niche in the plastic somewhere on the seam)
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Post by lurcher on Apr 1, 2023 17:32:10 GMT 1
Thanks JD, my old one was like that and I was in and out a few times. I will first look at the round centre piece which rotates and may open to access test points. Then it will be an attempt to lever off the whole outer cover and I hope it will give me full access to the terminals. It is tricky to find a suitable time as we are always on the Internet. It will happen soon but I will need to pick up a few items from Brico to put my plan into action.
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Post by amandaj on Apr 1, 2023 17:58:06 GMT 1
I searched 'comment ouvrir boitier dti test' and found a video that suggested putting a screwdriver in a niche at the top (as said by JohnnyD) and prising it open. Box was similar to yours but not exactly the same.
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Le-Dolly
Member
La Souterraine (23) depuis '05.
Posts: 570
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Post by Le-Dolly on Apr 1, 2023 19:14:07 GMT 1
We have installed several tens of dozens of DTI boxes, but that example is different to any I have seen before. The usual method for opening is to squeeze the sides together to free the internal 'clamps'. With yours placed hard to the wall I would try the same technique, but squeezing the top and bottom and pull forwards.
Bon courage.
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Post by lurcher on Apr 1, 2023 20:27:52 GMT 1
Thanks everyone for your comments. I have found several videos of DTIs and they all have different internal layouts but as you have all suggested, it is a screwdriver in slot process to open them. The round, rotating window just reveals the rj45 test socket. The reason for needing access is to disconnect two unwanted cables which are part of the obsolete multiple feeds for non-wireless phones around the house. I must make the system more reliable.
I will report next week when the job is complete.
Thanks afain
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Post by lurcher on Apr 2, 2023 11:54:13 GMT 1
Today I opened the box. As expected it was easy once I stood on a stool, got closer and spotted the sign to press inwards and pull. Two unwanted cables were positioned inside the box but were not connected. I had intended to disconnect them. I now have the task of finding a short cut through, or around, an 50cm stone wall which is between the incoming box and the phone/router on the other side.
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Le-Dolly
Member
La Souterraine (23) depuis '05.
Posts: 570
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Post by Le-Dolly on Apr 2, 2023 12:09:00 GMT 1
Today I opened the box. As expected it was easy once I stood on a stool, got closer and spotted the sign to press inwards and pull. Two unwanted cables were positioned inside the box but were not connected. I had intended to disconnect them. I now have the task of finding a short cut through, or around, an 50cm stone wall which is between the incoming box and the phone/router on the other side. Wot I said. |
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Post by lurcher on Apr 2, 2023 12:13:26 GMT 1
Here is a view of the interior. No surprises in the box.
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Post by lurcher on Apr 2, 2023 12:27:18 GMT 1
Yes, I had noted your advice. You even spotted that it was hard up against one wall and that was indeed a nuisance. The squeezing points are on the two vertical sides so I was restricted to squeezing only the open side and just added a wriggle to pull it open. There was a decent amount of flexibility and I failed to destroy the outer cover. |
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Post by pcpa on Apr 2, 2023 16:30:28 GMT 1
During a recent demolition session with club hammers and crowbars I gently removed the old style France Telecom DTI, the type dating from the Jules Verne era, blimey they certainly knew how to make tough plastic those days and which would not degrade or harden with exposure to UV, it took all of my strength and determination to break the cover off and chselling would not loosen the back from the wall, it needed the big crowbar which eventually pulled out the screws and rawlplugs rather than break the plastic around them.
Todays offerings probably wont last any longer than the soles of my hiking boots or slippers, both of which decomposed before any wear had taken place.
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Post by robertarthur on Apr 3, 2023 12:44:16 GMT 1
@ pcpa, interesting those old junction boxes, provided by France Télécom, the French State, don't even dare to touch....  Inside two little gas discharge tubes as a tiny parafoudre system, trying to get voltage spikes into earth with a twisted pair of copper wires outside. The modern boxes (DTI) allow the Orange technicians to test the quality of their line: inserting a T or RJ45 plug disconnect the house wiring and the telephone line, from the local exchange, sees only a so called module RC, a resisitor/capacitor combination. The old three legged modules had a tendency to pick uo a lot of stray noise. No problem for the old school low frequency voice only signals, but in modern days able to do a lot of harm to your high frequency adsl signals. Slowing downloads, sync problems or almost no signal at all. And they could be hiding in almost every phone socket. Removing them is not a bad idea, more information about yesterday's French telephone wirng. |
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