alarm and DEOL and resistors query

[ernest_123]

Hi, i installed a ADE captive8-20 alarm with 2 RKP's a few weeks ago.

there are a total of 5 zones

each zone has one ADE dual tech PIR

I used 4 core cable for each zone - 2 wires for + and -, and the other 2 wires i connected one to the tamper terminal, the other to the detector terminal. I then bridged the 2 free terminals so as to link the tamper to the detector.

This is kind of looks like DEOL wiring in the manual.

Anyway, it works just fine which is nice - BUT,

i was looking over the manual today and noticed that i think i forgot to add a resistor in each PIR, actually it states 2 resistors for the final PIR.

My question is, do i need to add the resistors in my PIR's?


Thanks for any help, Ernest

 

[breezer]

never heard of DEOL
no idea about your panel

its working leave it alone

I can tell you that you have no tamper protection while alarm is unset.
the panel can not differentiate between alarm and tamper condition

most 4 wire systems have 2 resistors in each detector, one is called EOL the other is called fred (no, not really its called shunt)

when everything is ok the panel sees the EOL (end of line) resistor
when in alarm it sees both shunt & eol so it knows that is alarm condition, if you remove the cover it sees an infinite resistance, goes into tamper

if you short the wires it sees almost no resistance and goes into tamper

value of resistors depends on pane used

 

[ernest_123]

HI, thanks reply

DEOL is double end of line, apparently.

The reason i used 4 core cable was that i was replacing an old system (about 15yrs) and there was already 4 core cable there and would have been a pain in the butt to change it all as much of it is buried in walls. But anyway...

if you are interested, this is the panel

http://www.honeywell-security.co.uk... 2_9-04_Captiv8-20-Eng info and Ops inst.pdf

the DEOL diagram is on pg 8


I hear what you are saying about 'its working leave it alone' Im just worried i have done something wrong and its slowly frying itself...


Im not worried about tampering whilst unset.

The PIR's do have 2 connectors called EOL. Will have to look into them further. I searched on google but there seems to be little on the finer points of alarm installations - which is why i ended up here. Cheers

Thinking about it, the panel supports id plus wiring with someting called biscuits... perhaps i could try this too whilst im still in the mood.

Cheers, Ernest

 

[breezer]

you did not look at the drawing close enogh did you.

to wire it as you have you missed out the 4k7 resistors

which means as i said you have no tamper

the way they have done it is ethicaly wrong and does not comply to any standards, (unless you use latching detectors)

since in their drawing you can haveup to 4 detectors on the same cct so if it goes off which one has gone off? answer you have no idea

each detector should be on its own cct, which you should do for above reasons , also it seems a bit stupid to have 4 detectors on one cct when you have umpteen ccts available

Biscuits (the alarm ones) were invented by ADE

they are designed to have up to 30 devices on 4 wires, each biscuit has its own number and you get them in packs of 10

so long as you have each detector on its own cicuit like i said dont worry about it.

as you installed it yourself for your own benefit it dos not have to comply to aby regs either, but then again your insurance co wont like it either

alarm panes usulay go wrong strait away if you have something wrong, unless you foget to change the stnadby battery every 5 years, old batteries can cause all sorts of problems

 

[ernest_123]

er no, i didn't look closely enough

thanks for all the tips.

As for insurance, its down as no alarm so no probs there. Interestingly enough i got an online quite from direct line for my house insurance as it is with no alarm. i then went back and changed the parameters to a profesionally installed and maintained system that calls the police or something along those lines and it came out as being £3 cheaper...

I wonder if this is the same for other insurers?



Thanks again

 

[breezer]

bang on with insurance.

if you have an alarm for insurance reasons it has to be installed by a specific registered alarm co, (you choose which one from a list) you pay the alrm co an extortionate amount to install it, + any call out fees all to save £3 on your insurance

not worth the effort

If you have something of high value that i can understand, but for a domestic, no point in telling insurance co