Omni aux zone voltage input vice contact closure

[Desert_AIP]

Looked through the HAI developer forum and knowledgebase, read the install and user manuals, searched here and at worthington.
I can't find a definitive answer.

Is it possible to send a HI/LO voltage input to an Omni zone rather than a contact closure?

I understand I can use the zone loop number as a trigger, but is that based solely on the loop circuit voltage and resistance?

i.e. Can I hook a single wire to one side of a zone, place a resistor across the terminals, and send a HI (+12VDC) (or LO for that matter) to the zone input and use that as a NOT READY trigger?

Thanks

 

[Ernie]

HAI controllers support the use of open collector output type devices, similar to what you are referring to. In such applications, the output of the device is connected to the "+" terminal of the zone and a 1K, 1/2 resistor is strapped across the "+/-" of the zone. The resistor provideds the end-of-line secure state and when the device trips, it applies a 12VDC signal to the zone, causing the zone loop to drop to 0 (typically).

 

[JonW]

Lajaycee - where did you find this information? I too was trying to find info on using voltage inputs but could not locate anything. You mention a 12V input, but can this be done with a 5V as well? What are the tolerances of the input?

 

[Desert_AIP]

So...can I use a CM-9 occupancy sensor, which has a HI out rather than a CM-9-R relay/contact closure output?