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Intruder, Fire, CCTV, Emg Light, Access Control
Changing The Bell Box
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<blockquote data-quote="Richard-the-Ninth" data-source="post: 386242" data-attributes="member: 23472"><p>That is the sort of comment I would expect from some one who thinks too much like an electrician.</p><p></p><p>I am not wanting to argue, but I shall explain how it is done in an alarm panel.</p><p></p><p>+ve</p><p></p><p>-ve supply</p><p></p><p>2 wires Obvioulsy</p><p></p><p>Ringer. (makes sounder sound) you would call this the switched wire (Its a switched negative not a live or +Ve)</p><p></p><p>Strobe (makes strobe flash) you would call this the switched wire (Its a switched negative not a live or +Ve)</p><p></p><p>Tamper (tells the panel all is well)</p><p></p><p>So far we have used 4 wires, or 2 pairs, so you would assume that as this is the tamper it must use a pair of wires. It doesn't. It is infact a switched -ve from the sounder to the panel.</p><p></p><p>Now if you count the number of wires used it is 5 not 4 or 6, so the tamper is NOT using a dedicated pair of wires, it is just a switch wire. You also can NOT get a closed circuit between this and any other wire as although is a switch wire there are often a transistor or two in the way.</p><p></p><p>So my point is, that it is misleading to say to a diy person that the sounder tamper must have two wires, because it doesn't have two wires, so they could end up looking for something that is just not there.</p><p></p><p>All a diy person wants to know, is what colour wire to connect to what terminal.</p></blockquote><p></p>
[QUOTE="Richard-the-Ninth, post: 386242, member: 23472"] That is the sort of comment I would expect from some one who thinks too much like an electrician. I am not wanting to argue, but I shall explain how it is done in an alarm panel. +ve -ve supply 2 wires Obvioulsy Ringer. (makes sounder sound) you would call this the switched wire (Its a switched negative not a live or +Ve) Strobe (makes strobe flash) you would call this the switched wire (Its a switched negative not a live or +Ve) Tamper (tells the panel all is well) So far we have used 4 wires, or 2 pairs, so you would assume that as this is the tamper it must use a pair of wires. It doesn't. It is infact a switched -ve from the sounder to the panel. Now if you count the number of wires used it is 5 not 4 or 6, so the tamper is NOT using a dedicated pair of wires, it is just a switch wire. You also can NOT get a closed circuit between this and any other wire as although is a switch wire there are often a transistor or two in the way. So my point is, that it is misleading to say to a diy person that the sounder tamper must have two wires, because it doesn't have two wires, so they could end up looking for something that is just not there. All a diy person wants to know, is what colour wire to connect to what terminal. [/QUOTE]
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