Electronic Alarms and Home Security Devices - EOL Resistors

do I have to install a EOL Resistor on every zone ?

Door striker: I have just installed a door striker on the front door into zone 1 and com. Do I have to install a resistor in there somewhere or just straight wire to the panel ?

Where do the resistors go, there is one for the smoke Bell and EOL ????

Sorry for the dumb questions but i am finding it kind a hard to get info that i think i am looking for

Yes, you must install <i>one</i> resistor on each zone (and only one.) You do not necessarily <i>have</i> to install the resistor at the contact, but it's highly recommended. On NC (normally closed) sensors - like door/window sensors - you install the resistor in series with the loop. For NO (normally open) sensors - like smokes - you install the resistor in parallel to the loop.

The siren does not require a resistor, unless you want it supervised (not really necessary, unless it's in a vulnerable area.)

As far as the bell curcuit, If you have a DSC system, I recomend you install the resistor, If you dont, in most cases you will hear a little hum emitting from the siren, but as SafeWatch stated they are not absolutly necsessary:)
Hope this Helps!!

Yes, that's true - but it really depends on the type of siren you install. I've had 15 and 30Watt exterior sirens hum really bad and 15Watt interior sirens not at all. I think impedance has a lot to do with that too.

If you're not sure, just install the resistor - no big deal. If you have problems, definitely install the resistor.

Good luck!

Thank - you all for your info, as i am sure i will be posting a few more, and sorry for the stupid questions, i am kind a new at this stuff

ok got the first part no problem, but if i use zone 2 for all the windows in the family room (4 windows & contacts) do i need 1 resistor or 4 in the loop somewhere?

use only 1 resistor per zone ( most likely you are using a N/C loop so put the resistor in series

Kenny

So, lets be plane for a second. If i have a 1 zone alarm system and all i am hooking up is the roller for the front door this is how it is wired.

roller switch has 2 holes for wires, so i take my phone wire and put the red and black into the roller switch, then run the wire to the pannel and take the red and insert it into com and take the black wire and crimp on a resistior and then insert the other end of the resistor into zone 1 ??

Is this the basic way of wireing with resistors ??

I was talking to a guy tonight at work and he has also installed a 5015 and did not install any resistors on his wiring ! Is this not a good idea? they are supplyed right so theymust be used?

And the final question, when installing the bell resistor which wire will it go onto bell + or bell-

Thanks guys:D

( A ) What you are discribing is correct, the purpose of having the resistor is to supervise the circuit , the resistor should be placed at the furthest device from the panel, but if this is a residential system there is really no need to install them since most likely the wires are hidden in the walls and cannot be tampered with ( note if the wire is cut it will show as an open zone on the panel,or if it is armed it will cause an alarm) What typ of panel do you have ? Let me know and I will tell you where in the programming to disable the EOL's and go with N/C loops.
On the Bell (Red+) (Black -) Resistor across the two terms,
Good Luck!
Kenny

It's a DSC832 - to disable EOL turn ON option 1 in field 013. Even though it's not really necessary to use EOL's in a residential situation, it's not a bad idea either. And very easy to do.

Installing the EOL's at the panel (first of all, is not EOL - I guess it would be BOL) is essentially the same as turning on NC loops (the operation above.)

It's really up to you in the end, but having supervision is never a bad idea. If your wires get cut/chewed-on/etc. and end up getting crossed somehow (it's possible) you aren't going to know until you open the door/window it's connected to and it doesn't work.

Good luck with it!