How's this EOLR explanation

[IVB]

Trying to come up with a way to explain EOLR to my Security 101 class. Main reason is that so they know to ask the installer to not put them inside the panel. How's this sound?

An “end of line” resistor is a tiny electric component that alarm panel manufacturers have created to defend against thieves tampering with sensors or wires.
- They are designed to be put at the sensor side of your circuit. Make sure to ask your installer to not put the resistors inside your security panel (common practice among low-end installers) as it defeats the whole point of using them.

Technical details:
- It’s a tiny electrical component that alters the signal from the alarm panel slightly. That way, a thief cannot either simply cut the wires or use a magnet/piece of metal to make a sensor seem normal when it’s really not.

 

[CollinR]

Trying to come up with a way to explain EOLR to my Security 101 class. Main reason is that so they know to ask the installer to not put them inside the panel. How's this sound?

An “end of line” resistor is a tiny electric component that alarm panel manufacturers have created to defend against thieves tampering with sensors or wires.
- They are designed to be put at the sensor side of your circuit. Make sure to ask your installer to not put the resistors inside your security panel (common practice among low-end installers) as it defeats the whole point of using them.

Technical details:
- It’s a tiny electrical component that alters the signal from the alarm panel slightly. That way, a thief cannot either simply cut the wires or use a magnet/piece of metal to make a sensor seem normal when it’s really not.

Thats all they really need to know. The only thing I would point out is the EOL should be installed at the farthest point by wire path if you homerun your wires a series of 2 windows has the farthest point by wire path inside the controls enclosure. This isn't a bad thing, what you do not want is all of your EOLs tied in at the control for sill stuff like the primary entry door.

This doesn't protect you from a magnet style attack, that will still work.


Basically this keeps someone from climbing into your attic and locating the motions, then putting a needle through their leads making them perminently closed.

NO sensors usually smokes but can be many others MUST have the EOL tied across their contacts.

You should NEVER twist the EOL to the leads on NO sensors, if you do they can fall off the sensor and never raise a trouble code. You should just insert the leds of the EOL and the lead wires side by side untwisted.

 

[BraveSirRobbin]

OR just point them to the CocoonTech.com Glossary:

http://www.cocoontech.com/index.php?showtopic=711

You might want to also mention that this methodology will also detect any trouble with your wiring as well (shorts or opens).

 

[IVB]

oh yeah, i always forget about that.

Thanks!