Series and Parallel Wiring With Alarm Systems Explained

[@abbasabboobaker1404]

A description of wiring a door contact and a sensor on a line

[@Mthofi]

Hi. I have 4 IR beams ( 2 receivers & 2 transmitters) that i need to connect on 1 zone. How do i do that, cause when i connect the 2 NC & 2 Common to the one fron the panel, it doesnt work.

[@AlarmSystemStore]

If they are NC they should be wired in series. May need a resistor as well if your panel requires them.

[@Mthofi]

@@AlarmSystemStore Thank you. I put them on NO and they are working. Also put a resistor on each.

[@bitshtannicajohnson6957]

*If you walk past a motion sensor normally clothed - but walk slowly past it without clothes on - would it still set off the alarm panel?*

[@AlarmSystemStore]

Clothes has no impact on a motion sensor.

[@ronpeel1878]

A passive infrared sensor detects a change of heat ( raised or lowered) within an area of vision. These areas are much like looking down a conduit tube but there are many of them ... typically 30 give or take. These ares, via the freznel lens, are directed onto the pyro-sensor, much like a camera lens onto film. When someone move in the area covered, the detected heat sourses 'dance around' the pyro sensor - These are anylized by the electronics to then trigger an alarm activation. Alarm eng. UK

[@kevportillo]

@@AlarmSystemStore Imagine if it did 🤣🤣

[@Mrcaffinebean]

@@kevportillolet’s start a rumor that they do and see if burglars start going naked 😂

[@nickieshadowfaxbrooklyn5192]

You confuse infinite resistance. Closed circuit has negligible mOhms of impedance, in boolean logic interpreted as 0; or when EOL is set, 5.6kOhms is considered 0; whereas Infinite resistance is exceedingly high value, a 100% voltage drop - an open circuit, or a dry and sober tech in-line 😂 1. Also, speaking of serial wiring, next time you have repetitive false alarms at night on a zone with 18 splices, you’ll be extra happy your installer didn’t do it, saving a couple of expanders and sleepless nights. Otherwise, good video to send new techs understand science of electrical connections.