ᐅ New installation of a video intercom system?

Created on: 16 Sep 2017 13:55
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Paulchen241
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Paulchen241
16 Sep 2017 13:55
Dear experts,

I am currently renovating parts of my house. As part of this, I want to update the intercom system. A newer video door entry system is to be installed.

The current intercom is wired with a 4*2*0.8 cable.

Question 1: What type of video intercom system can be connected here? 2-wire or 4-wire?

Question 2: Is there a wiring diagram showing how the old 4*2*0.8 cable should be connected for a 2-wire or 4-wire system?

Thank you for your help
Kaspatoo25 Sep 2017 10:10
Answer to Question 2: How to turn on the system is explained in the manufacturer’s manual. It is often also available online. You can also call the manufacturer; they are usually happy to help.

When you mention 2*4, I assume you mean 8 conductors, similar to a LAN cable. In any case, the wires are sufficient (thus answer to Question 1: both work, but do 2-wire video intercom systems even exist?).

The question remains about shielding. If you still have the option, I would recommend at least Cat6a. Video intercom systems feed into the network via the IP gateway (see respective manufacturer), then transmit, for example, video to a cordless phone like FritzFon (using DECT) or to the door station.
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Paulchen241
25 Sep 2017 11:47
Hello Kaspatoo, thanks for your information. That already helps me a lot.

Yes, the currently installed cable, to which the old door opener system is connected, has 8 conductors. If I decide, for example, on a 4-wire version, that means, as I understand it, that 4 conductors remain "unused" and are not connected. Is that correct?
Kaspatoo25 Sep 2017 12:02
Yes, as long as the audio station does not require two additional wires and possibly to control a lamp, which would also need wiring.

As I said, I would look for a product that you like, contact the manufacturer by email or phone, and then proceed once all questions are clarified.
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Tom1607
25 Sep 2017 12:15
Hello,

B&J offers the Welcome System (you can search for it online). It is a digital 2-wire connection that handles everything. This is ideal for retrofitting...

On the B&J website, there is also a configurator where you can design your system, and it automatically generates the corresponding wiring diagram.

Regards,
Tom
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Paulchen241
25 Sep 2017 15:44
Great. Thanks for your tips and advice. Then we can get started. 🙂