The Arab Posted February 13, 2023 Share Posted February 13, 2023 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 Link to comment https://www.thesecurityinstaller.co.uk/community/topic/45491-door-intercom-gdx5/ Share on other sites More sharing options...
sixwheeledbeast Posted February 13, 2023 Share Posted February 13, 2023 (edited) Never used one, but doesn't look like the standard 4+1 that you can use pretty much any. https://doorentrydirect.com/media/product_attach_files/g/d/gdx_-_23121_-_datasheet.pdf Edited February 13, 2023 by sixwheeledbeast typo Link to comment https://www.thesecurityinstaller.co.uk/community/topic/45491-door-intercom-gdx5/#findComment-517848 Share on other sites More sharing options...
The Arab Posted February 13, 2023 Author Share Posted February 13, 2023 Thanks for the reply. That’s what I was thinking. Must be some sort of data type entry system Trade Member Link to comment https://www.thesecurityinstaller.co.uk/community/topic/45491-door-intercom-gdx5/#findComment-517850 Share on other sites More sharing options...
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