Daisy chain cable

[Cavester]

Hi,

I'm currently refurbishing my house and whilst at it running cable for a Texecom premier elite.

Can someone tell me if I can wire a Elite DT PIR and Impaq shock sensor with door contact with an 8 core cable in parallel please? I'm assuming at this point that I will daisy chain the 2 power cores and the rest will be used for the devices.

Also, am I right in thinking that the 8XP expander is powered by a single cable back to the panel? (Have also installed an 8 core alarm cable for this).

Thanks in advance!

 

[secureiam]

How do you want the devices to work?

I would always advise one device one zone.

When using EOL you need two cables for power and 2 for EOL, (keeping it simple).

the 8XP two for power and two for coms leaving 4 cores spare, shouldn't have any issues up to 100m cant see that being an issue in a domestic

 

[Cavester]

Thank you.

I want them on separate zones. So I have a single cable with 8 cores going from the panel to the PIR then looped from the PIR to the door contact (for which I would also like the Reed and Shock on separate zones). So my question is, is 8 cores enough for this?

Thanks.

 

[Cavester]

For the door contact and shock I think I need 4 cores (2x reed, 1x tamper and 1x alarm), 2 resistors (4k7 & 2k2) and 2 power.

For the PIR I think I just need 1 for alarm and 1 for tamper, 2 resistors (4k7 & 2k2) and 2 power (same cores daisy chaining to door contact for power).

So all im I'd use all 8 cores in the cable?

 

[secureiam]

wrt to the reed, if you want this on a separate zone from your shock, or do you want it be one zone with your shock or reed to activate.

 

[Cavester]

If I can have it on a separate zone but still wire everything with the 8 total cores I assume this would be best?

 

[secureiam]

depends on how you want to use it.

so I can save a zone if I just want it to alarm if the reed is active or the shock is active, but if I wanted it to start entry when a door is pened but in alarm if someone tries force then I would have them on separate zones

 

[Cavester]

Ok so if I want them on separate zones, can I do this with 8 cores for both PIR and door contact using the same 8 core cable?

 

[secureiam]

If anything goes wrong with the cable you will have no spare cores to fall back on later.

zone 1 - 2 for the reed
zone 2 - 2 for the shock 2 for power
zone 3 - 2 for the pir 2 for power

you can wire the power in parallel to the pir and shock.

It is possible to free up cores by using the 0V inside the sensors to the alarm terminal and wire back to the panel, but I don't advise that. There are details of this on the Texecom forum if you want to look.

I would always advise to start with best 1 x 8 core per alarm device, so I would have one for the PIR and one for the shock and contact.

one 8 core and all the devices on it means no spares available, then you may have to run a cable or go wireless or try and use the 0V method to free up cores and still use eol.

 

[Cavester]

Thanks for that.

I may run 2 additional as you suggest whilst I have got the chance.

 

[secureiam]

best way