samnaffy Posted March 31, 2009 Share Posted March 31, 2009 i have wired a scanny using EOL. I have a double front door and have two mrc on the same zone. How do i wire the two resistors to work. I have done it before but have completly forgotten. Thankyou all for your time. Link to comment Share on other sites More sharing options...
chexsec Posted March 31, 2009 Share Posted March 31, 2009 Only the last sensor in a chain should have a series (tamper) resistor fitted, all sensors have a parallel resistor across the alarm contacts. All the alarm and tamper contacts on a specific zone are wired in series. Link to comment Share on other sites More sharing options...
antinode Posted March 31, 2009 Share Posted March 31, 2009 If I remember correctly, you can't do it the conventional way on a Scanny panel (ie last contact with the 2k2 EOL and 4k7 across the reed, all the other contacts with just a 4k7 across the reed) as it does'nt like it when both doors are open. You may have to do it using the "third wire" method, where you use one 4k7 and send it across both contacts. Not the best way to do it though. Can't go to detail in the public area. Trade Member Link to comment Share on other sites More sharing options...
ian.cant Posted March 31, 2009 Share Posted March 31, 2009 You may have to do it using the "third wire" method, where you use one 4k7 and send it across both contacts. QFA Link to comment Share on other sites More sharing options...
Guest old-hand Posted March 31, 2009 Share Posted March 31, 2009 Well now we have told the 3rd wire method its no longer a secret lol Link to comment Share on other sites More sharing options...
lawandorder Posted March 31, 2009 Share Posted March 31, 2009 If you wire the 1st contact as per normal all you have to do is wire the second contact as if it were double pole wiring then wire the tamper pair in series with the pair from the 1st contact. Wire the 2nd contact pair in series with the reed on the 1st one. In other words the shunt resistor will shunt both reeds. Probably easier if you totally ignore the above and just draw it out!! The imporatnt bit is you need to run a 4 core from the 1st to the 2nd contact. Link to comment Share on other sites More sharing options...
Guest old-hand Posted March 31, 2009 Share Posted March 31, 2009 The imporatnt bit is you need to run a 4 core from the 1st to the 2nd contact. As they dont make a 3 core cable pmsl Link to comment Share on other sites More sharing options...
lawandorder Posted March 31, 2009 Share Posted March 31, 2009 As they dont make a 3 core cable pmsl well not in sizes small enought to fit in a standard smc anyways! Link to comment Share on other sites More sharing options...
Guest old-hand Posted March 31, 2009 Share Posted March 31, 2009 well not in sizes small enought to fit in a standard smc anyways! LOL Did`nt mean 6mm T&E .............. pmsl Link to comment Share on other sites More sharing options...
satsuma01 Posted April 1, 2009 Share Posted April 1, 2009 LOL Did`nt mean 6mm T&E ..............pmsl re the 6mm "If you carry your childhood with you, you never become old. Why rush to end life when happiness is in the blissfulness of childhood innocence.""We all die, the goal isn't to live forever, the goal is to create something that will." 07475071344 Link to comment Share on other sites More sharing options...
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