Interface A Securilite Voltek 1804 Pir With A Gjd Sapphire 1500 Mk3 Controller

[aissecur]

Hi, I have a customer who has a single GJD opal pir going to a GJD Sapphire 1500 Mk3 triggering external LED lighting..

The customer has procured a voltek 1804 PIR..

My question is,  can i also interface the voltek into the GJD controller as well as using the exisitng GJD opal pir?

 

The wiring to the Opal is 4 cores -

12v / 0V DC (2 cores),   Trigger (A)  -  single core trigger input into controller for detection & one as a photocell input (S)

The Voltek is much the same as the above with S - trigger input   L -Photocell or light level

 

If i was to rely on the Opal to control the light level into the controller (to allow relay switching of the LED lights during darkness)

Do you think the S input from the Voltek PIR  would work with the GJD controller & trigger the LED lights (When the Opal PIR had signalled darkness)

 

Thanks in advance

Nick (aissecur)

[james.wilson]

the voltek is iirc 12v normally on the S going to 0v in alarm. If you meter the gjd id assume its the same. If not you will need a t-relay to invert the Voltek S output.

[aissecur]

Hi, Many Thanks for the reply...

Good point.. I just need to find out what the GJD Opal detector outputs when in alarm... Im almost sure its  0V in alarm.. I will get the mutlimeter out when im next on the site.

A relay is a good idea.

If not using a relay i would have to check what the opal outputs when in non alarm state, as if its not 12v i fear the introduction of a Voltek pir with 12v flowing in non alarmed state may cause some internal damge to the GJD controller..

 

Thanks Nick

[james.wilson]

use a diode then to protect the existing. but its a resitive pull up to 12v on the voltek