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Help On Intercom Wiring


Ollyc92

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Most are ac not dc but with this one i could be wrong

i Tthink that's not correct, while speech on most is DC, the call and lock release on 5 (4 + Call wire systems tend to be AC.

 

iirc BPT kit which is 4 wire (3 + 1 call wire), uses the handset ear piece as the 'ringer' which warbles when called?

 

tbh, why not simply use a mains connected intercom from the likes of Maplins or Henry;s Radio?

If you think education is difficult, try being stupid!!!!

  • 3 weeks later...

Blimey, its not a state secret.

attachicon.gifE305S PANELS Model (1).pdf

 

Tsk, I can't believe you just gave him the engineer manual....

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

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