6 Terminal Pir

[jonesy1982]

Hello,

I'm trying to add a new PIR to an existing system, which only uses 3 core cable.

Being Red +, Black -, and yellow for Zone trigger.

The only PIRs I can assitain are the standard 6 terminal supply (+,-), Zone (N/C), and Tamper (24hr x2).

I assumed by linking out the Tamper terminals to create a closed loop circuit and by connecting to either the N or C terminal with the yellow zone wire( with the N/C being already linked out on the circuit).

Am I correct in assuming this will work correctly when armed.

Ryan

[kka]

what panel are you using?

[james.wilson]

No im afraid that wont work, depending on your panel you may be able to connect one side of the relay to 0v, but to be honest you shouldnt run a pir on 3 cables. You need 4.

If you panel uses positive zones then they may be at 5v and you would then need to source 5v from the 12v you have.

If its a negative zone panel then it may work but is not the correct way.

James

[alterEGO]

No im afraid that wont work, depending on your panel you may be able to connect one side of the relay to 0v, but to be honest you shouldnt run a pir on 3 cables. You need 4.

If you panel uses positive zones then they may be at 5v and you would then need to source 5v from the 12v you have.

If its a negative zone panel then it may work but is not the correct way.

James

agreed, but if it is a + return it will 'work' with 12v link, although it should be 5v.

[james.wilson]

but on some panels 12v can damage the input, depends on how good the filtering is.

[alterEGO]

but on some panels 12v can damage the input, depends on how good the filtering is.

i know, but if its a 3 wire panel the best thing would be for it to get irrepairably damaged.

[james.wilson]

lol

OP your old sensor wasnt a DA comet was it? and your panel isnt an abacus?

[antinode]

Sounds like one of those cheapy Micromark/Security Master jobbies to me. If it is, your new PIR will likely not work in any configuration.

If it is an Abacus, you can re-wire with resistors (if you have them) or if you have another 3 cores, you can re-wire double pole (2 wires for alarm, 2 for tamper). Just need to swap a couple of wires in the panel/REM and turn the "split" option for the zone off in the zone programming.

[john@total]

Hello,

I'm trying to add a new PIR to an existing system, which only uses 3 core cable.

Being Red +, Black -, and yellow for Zone trigger.

The only PIRs I can assitain are the standard 6 terminal supply (+,-), Zone (N/C), and Tamper (24hr x2).

I assumed by linking out the Tamper terminals to create a closed loop circuit and by connecting to either the N or C terminal with the yellow zone wire( with the N/C being already linked out on the circuit).

Am I correct in assuming this will work correctly when armed.

Ryan

Is it a commercial or a Pub?

If it's an old system it sounds like it is one that requires I.D Biscuits (Thats what i call them). One ring around the

building with white Joint boxes with pir's shooting off in all directions is the norm with the ones i have upgraded before.

You will have to find the make of the panel, if it's new it maybe a Menvier ID panel then you can definatley get the parts.

[jonesy1982]

Thank you all for your help, unfortunatly this alarm rather cheap and has limitting features I have now got new PIRs from the manufacture Micromark. It is a MM80781 panel from B&Q.

Ryan