Intercom handset replacement

[Cobham42]

Hi guys first post here. I am in the middle of a major renovation of my flat and wanted to swap the intercom with a newer and smarter looking one. The old model is Videx smart 1 and would like to replace with fermax loft 3399. I have tried to follow the wiring diagrams and it actually works, however there is always a very very loud buzz which can be heard in the speaker in the handset and downstairs. PS I live in a block of flats.

Can anyone help please?

 

[sparkymarka]

Should have replaced with a 3101 or 3102 videx handset

 

[Cobham42]

Hi there, is this I've got not compatible???

 

[sparkymarka]

Did it come with a conversion table ? Did you try turning down the internal volume controls

 

[Cobham42]

Did it come with a conversion table ? Did you try turning down the internal volume controls

Yes both volumes to lowest setting but still ridiculous buzzing noise. Concertion table came with the box. This is how I worked out which wire goes where. On the left old handset terminals and colours, on the right new handset terminals and colours (4 white and green) still no joy

 

[sparkymarka]

Have you tried the common ground switch ?

 

[Cobham42]

Don't have a clue what you are talking about

 

[sparkymarka]

 

[Cobham42]

Oh sorry, yes I've tried both but there is always that buzz. If you send me how you would set it (which wire colour in which number slot + toggle switches) I will try again and let you know. Much appreciated

 

[sparkymarka]

Your wiring config looks correct ....universal handsets are not guaranteed to work on every system ALLWAYS use the correct replacement handset and only use these as a last resort..also best practice is to use a pair if phone cable is used on the speech lines ...eg blue and white / white and blue for speech in /out