Wiring for home security alarm - Electronic Circuits Projects Diagrams Free

hychong69 · 11th June 2008, 11:05 PM

Our house is in construction and I am looking at putting the wiring in for the security alarm myself and have it install after the house is completed. What type of wiring cable should I use for the panel, keypad, reed, PIR, internal and external alarm. Can I create a loop to connect a few PIR on the same wiring? Any advise is welcome. Thanks in advance.

mneary · 11th June 2008, 11:41 PM

Wire is cheap when the walls are open. I would home-run cat5 (or if you need it cheap, quad or twisted pair) to the alarm box from each location that you plan to have a sensor.

hychong69 · 12th June 2008, 12:06 AM

I think I will not consider CAT 5 cable as it is a bit dear. Is quad sufficient? I just had a look on the net and PIR got Relay, EOL and Tamper connections. Should I be worry about those connections?

mneary · 12th June 2008, 12:12 AM

Quad is sufficient if your sensors need 4 or fewer wires.

hychong69 · 12th June 2008, 12:34 AM

mneary, I think I'll just go for the quad for the sensors as you advised. I believe I need a 6 core for the keypad. Quad should be sufficient for both internal and external siren. Thank you for your advice.

yngndrw · 12th June 2008, 03:43 AM

PIR sensors usually require 6 cores.

* 2 for power.
* 2 for data / signal.
* 2 for anti-tamper loop.

I think the bell boxes require more than 6 cores, but can't remember.

Edit: Found something for you: DIY Alarm Install - Installing an Intruder Alarm System - Security Installer Happy birthday.

mneary · 12th June 2008, 09:17 PM

Make sure your wire to the external siren is heavy enough.

hychong69 · 1st August 2008, 12:08 AM

mneary, can you please explain "wire to external siren is heavy enough".

yngndrw, thank you for the link.

mneary · 1st August 2008, 07:13 AM

Your quad is probably 26 or 24 AWG, which is safe at 1 or 2A at most. A siren may require more current than this. Check the ratings.

Boncuk · 1st August 2008, 10:28 AM

Many ready made alarm circuits have termination resistors for each loop. To prevent false triggering shielded cable should be used for the entire field wiring. This is also prescribed by home insurance companies in Germany in order to decrease the insurance rates to be paid.

Noncompliance will lead to normal rates (the same to be paid without alarm system).

Check for your home insurance regulations concerning wiring. If you don't intend to buy an insurane you might use any conductive material for wiring.

Boncuk

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11th June 2008, 11:05 PM	(permalink)
hychong69	Wiring for home security alarm Our house is in construction and I am looking at putting the wiring in for the security alarm myself and have it install after the house is completed. What type of wiring cable should I use for the panel, keypad, reed, PIR, internal and external alarm. Can I create a loop to connect a few PIR on the same wiring? Any advise is welcome. Thanks in advance.

11th June 2008, 11:41 PM	(permalink)
mneary	Wire is cheap when the walls are open. I would home-run cat5 (or if you need it cheap, quad or twisted pair) to the alarm box from each location that you plan to have a sensor.

12th June 2008, 12:06 AM	(permalink)
hychong69	I think I will not consider CAT 5 cable as it is a bit dear. Is quad sufficient? I just had a look on the net and PIR got Relay, EOL and Tamper connections. Should I be worry about those connections? Last edited by hychong69; 12th June 2008 at 12:14 AM.

12th June 2008, 12:12 AM	(permalink)
mneary	Quad is sufficient if your sensors need 4 or fewer wires.

12th June 2008, 12:34 AM	(permalink)
hychong69	mneary, I think I'll just go for the quad for the sensors as you advised. I believe I need a 6 core for the keypad. Quad should be sufficient for both internal and external siren. Thank you for your advice.

12th June 2008, 03:43 AM	(permalink)
yngndrw	PIR sensors usually require 6 cores. * 2 for power. * 2 for data / signal. * 2 for anti-tamper loop. I think the bell boxes require more than 6 cores, but can't remember. Edit: Found something for you: DIY Alarm Install - Installing an Intruder Alarm System - Security Installer Happy birthday. Last edited by yngndrw; 12th June 2008 at 03:58 AM.

12th June 2008, 09:17 PM	(permalink)
mneary	Make sure your wire to the external siren is heavy enough.

1st August 2008, 12:08 AM	(permalink)
hychong69	mneary, can you please explain "wire to external siren is heavy enough". yngndrw, thank you for the link.

1st August 2008, 07:13 AM	(permalink)
mneary	Your quad is probably 26 or 24 AWG, which is safe at 1 or 2A at most. A siren may require more current than this. Check the ratings.

1st August 2008, 10:28 AM	(permalink)
Boncuk	Many ready made alarm circuits have termination resistors for each loop. To prevent false triggering shielded cable should be used for the entire field wiring. This is also prescribed by home insurance companies in Germany in order to decrease the insurance rates to be paid. Noncompliance will lead to normal rates (the same to be paid without alarm system). Check for your home insurance regulations concerning wiring. If you don't intend to buy an insurane you might use any conductive material for wiring. Boncuk