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Door Intercom GDX5


The Arab

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Has anyone got experience of the 4 wire GDX5 door entry/intercom systems. I have a good friend that has a faulty handset but having not used one and not being able to get my head round the fact it’s 4 wire instead of the usual 5 wire systems I’ve used can someone tell me. Can I use a normal door entry phone like a BSTL or is it only a GDX system phone that’ll work ?

 

cheers

Trade Member

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