Nope, it's an IP video doorbell
Spec says 12v dc and when you look on the BG transformer spec sheet, it says 12v dc?-deleted-
could well be the problem with mis printed specification info from the manufacturer!Need a model number. Some of their range can operate using 16-24 V AC, others at 12 V DC.
From info given so far, and because of the seemingly wrong info from BG, you're trying to power a piece of dc equipment from ac.
defo not a cable issue as when it didn't work I connected a 10cm cable from the transformer directly to the doorbell! hence why then went back to testing terminals with meter. think the issue is it's actually outputting ac and not dc as the spec and I was using about 5 metered of proper bell wire.what cable are you running from the output to the bell and what distance is it. Being a camera if a fair run and using a poor cable that may be the issue check what voltage your recieving at the bell unit end. Big error often on door entry use poor cabling for vid output over a distance and it just doesnt work, some manufacturer will specify the type of cable required when for installing, this is generally ignored and they are ok until the time it doesnt run. I dont know your product but guess its a wirless vid signal so cable may not be so reliant on performance
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