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Intruder, Fire, CCTV, Emg Light, Access Control
Replaced outside siren- connecting 'Hold-off +' makes alarm go off!
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<blockquote data-quote="Richard-the-Ninth" data-source="post: 468539" data-attributes="member: 23472"><p>I have come across relays more than once to connect sounders to the panel, just because you have never seen it done does not mean it is never done or that there is no need for it.</p><p></p><p>Some times you have to, when you have multiple sounders on a building that has a very big foot print and consequently has to have remote power supplies just for the sounders.</p><p></p><p>Then you also have mechanical sirens, they have to be connected to a relay and then to the panel as they are mains fed. (I am not saying I agree with mains sirens, but the point is you have to use a relay)</p></blockquote><p></p>
[QUOTE="Richard-the-Ninth, post: 468539, member: 23472"] I have come across relays more than once to connect sounders to the panel, just because you have never seen it done does not mean it is never done or that there is no need for it. Some times you have to, when you have multiple sounders on a building that has a very big foot print and consequently has to have remote power supplies just for the sounders. Then you also have mechanical sirens, they have to be connected to a relay and then to the panel as they are mains fed. (I am not saying I agree with mains sirens, but the point is you have to use a relay) [/QUOTE]
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Intruder, Fire, CCTV, Emg Light, Access Control
Replaced outside siren- connecting 'Hold-off +' makes alarm go off!
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