ie exactly, does it mean the protocol is public like open source?

so it doesnt mean the protocol is open, it just means that the panel may be restricted but the peripherls cant?

It's also used to refer to products/software that are available to the trade in general.

As an example, open protocol would be standard access control kit (ACT, Paxton, PAC etc)readily available from the main Distributors as opposed to say, Innova, that was predominantly locked to Chubb.

Also applies to specifics such as cards/formats. The likes of ADT/Chubb would have their own protocol (closed protocol). Other companies would not be able to supply additional cards or extra kit.

So it basically means is the kit generally available to other installers etc rather than restricted to one installer / provider

So it basically means is the kit generally available to other installers etc rather than restricted to one installer / provider

in essence, yes.

the danger if you go "too exclusive" is the one source of supply should you have a dispute you may loose your discount or credit terms & be unable to support in yrs to come, often "exclusive" means quirky, I prefer Apollo with controls not from ADI (or wherever)

in essence, yes.

QFA Though I am surprised that this question is being asked by you James ? I thought everyone understood the principle of open/closed protocol, you've gone down in my estimation

I took it as he was leading the thread so to speak, suppose there is that other way

Edited December 21, 201015 yr by Oxo

I will admit I thought open was like royalty free. Like pelco protocol for cctv. I assumed anyone could make a sensor to customers open protocol.

I always find that if a customer is sold a closed protocol system the installer can then charge whatever they like for spares and service and the poor customer cannot shop around for more comparative prices from other reputable companies.