Arf-Gef Posted April 25, 2015 Share Posted April 25, 2015 (edited) Hey Guys, I have a few newb questions. Firstly,do I only need to put resistors at each sensor (EOL setup)? I’ve read the manual, but it doesn’t specify this… (I’m about to use a Satel Versa 10 panel.) Or is there other places in an alarm system where resistors should be put? Am I right thinking I need 1 resistor, in series, at the furthest part from the panel (for example in the housing of each sensor)? Which wire should have the resistance? (The Alarm one, in this case it’s called „NC&C”(?) NC&C both signyfy that no R is needed don't they? ) If it’s a combined sensor (PIR & glass breaking) then do both NC&C inputs need a resistance added at the end of the wire? What if the sensor has an input called „EOL”? Does that mean that the resistance is included and no need to add one to that input or that i need to put the wire with resistance into that input. Secondly, what resistance should I use? I heard of using 3.3k Ohm, DSC panels use 5.6 kOhm AFAIK others 2k2... Is that specified with each brand/panel? Is smaller resitance better? It’s mostly to learn and for DIY fun, so that’s why such a newb doesn’t get professional help.( Introduction ) Thank you very much for your help, I am getting quite confused, as you may have noticed Edited April 25, 2015 by Arf-Gef Quote Link to comment Share on other sites More sharing options...
james.wilson Posted April 26, 2015 Share Posted April 26, 2015 Depends on your panel. Different brands have different eol values. Id use the relays as separate corcuits, ie the pir treat as one device the glassbreak as another Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
PeterJames Posted April 26, 2015 Share Posted April 26, 2015 Hi Arf There is a clue in the name, End of Line, the resistors should go at the end of every circuit. The panel is looking for a resistance coming back on the circuit, one resistance for open circuit and a different resistance for closed circuit. Its to stop potential sabotage of the system whilst its in day mode, i.e system disarmed someone comes along and cuts the wire or shorts the wire, thinking that the system will still arm but wont go off when they break in when the system is armed. Of course as soon as they tamper with the wire the system will activate armed or not. Quote Link to comment Share on other sites More sharing options...
MrHappy Posted April 26, 2015 Share Posted April 26, 2015 Hi Arf Sudder.... Hi Arf-Gef Quote Mr Veritas God Link to comment Share on other sites More sharing options...
Arf-Gef Posted April 30, 2015 Author Share Posted April 30, 2015 I found out what resistors value is recommended. In case someone needs it in the future: it's supposed to be between 500 Ohm and 15 K Ohm. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted April 30, 2015 Share Posted April 30, 2015 That's a huge range Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
Arf-Gef Posted May 2, 2015 Author Share Posted May 2, 2015 I know, I was supreised...Does the wide range has any significance? (I mean does that mean sth apart from being flexible when it comes to EOL resitances )I was wondering whether it's better to put in a big or a small resistance. Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2015 Share Posted May 2, 2015 First decide on panels or panel your going to use , some allow different values on each zone some are fixed values for the particular panel Then you will see what value is best On an electronics point of view, I assume lower values example 500ohms may make things difficult to detect, faults tampers etc hence why higher values are used or no resistor with seperate tamper loop Experts may correct me here Quote Link to comment Share on other sites More sharing options...
james.wilson Posted May 2, 2015 Share Posted May 2, 2015 I found out what resistors value is recommended. In case someone needs it in the future: it's supposed to be between 500 Ohm and 15 K Ohm. depends on the panel but its prescribed. highest value i knew of castle with 13k. id assume you have misread? Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
Vince8282 Posted May 2, 2015 Share Posted May 2, 2015 Just for fun When you find what values are expected by the control panel and usually the correct resistors are supplied with the panels to be put in the detectors, check that the detectors that you are using have or have not already got the resistors built into them. If they have check that the appropriate value is selected by fitting the link/s to the correct values and of course if they have got the resistors built in you will nor require the ones that came with the panel. Quote Practice in the morning, practice at night. Practice in the evening, until you get it right. Only make sure you are practising in the right way at the right time for it. Link to comment Share on other sites More sharing options...
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