Fire alarm sensors
Archiver
Posts: 46,084
Hi to all,
I'm interested in Fire sensors protocol. I plan to design home alarm unit
with combined sensor system.
Does anybody have those data.
regards,
Damir
I'm interested in Fire sensors protocol. I plan to design home alarm unit
with combined sensor system.
Does anybody have those data.
regards,
Damir
Comments
equipment. The protocols tend to be proprietary
to the vendor, with draconian "Non-Disclosure
Agreements (NDA)" to be signed if you REALLY
need the protocol.
They do tend to use RS-485 drivers/recievers
on a party-line, if that helps. You can easily
roll-your-own protocol for your own equipment.
BUT, you should be aware that Fire sensor equipment
is definitely considered Life-Safety equipment.
If your equipment starts any fires, your fire
insurance my be void. If you want to sell any
equipment, your reliability requirements may be
too high for a Stamp-based solution.
With those disclaimers, Edwards System Technology
(EST) makes commercial fire equipment.
--- In basicstamps@yahoogroups.com, "Damir Petrinic"
<damir.petrinic@r...> wrote:
>
>
>
> Hi to all,
>
> I'm interested in Fire sensors protocol. I plan to design home
alarm unit
> with combined sensor system.
> Does anybody have those data.
>
> regards,
> Damir
I'm electronic engineer working on vessel. I have a lot of sensors from
previous fire alarm system and I would like to use them. Problem is that I
can not find any protocol data for sensors. Anyway I would like to use any
of brand name sensors for my system because I would like to design my own
system but not sensors.
Is it possible to find any protocol data about.
Thanks in advance
Damir
Original Message
From: "Allan Lane" <allan.lane@h...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, July 09, 2004 6:55 PM
Subject: [noparse][[/noparse]basicstamps] Re: Fw: Fire alarm sensors
> Hello, I've worked with commercial Fire sensor
> equipment. The protocols tend to be proprietary
> to the vendor, with draconian "Non-Disclosure
> Agreements (NDA)" to be signed if you REALLY
> need the protocol.
>
> They do tend to use RS-485 drivers/recievers
> on a party-line, if that helps. You can easily
> roll-your-own protocol for your own equipment.
>
> BUT, you should be aware that Fire sensor equipment
> is definitely considered Life-Safety equipment.
> If your equipment starts any fires, your fire
> insurance my be void. If you want to sell any
> equipment, your reliability requirements may be
> too high for a Stamp-based solution.
>
> With those disclaimers, Edwards System Technology
> (EST) makes commercial fire equipment.
>
> --- In basicstamps@yahoogroups.com, "Damir Petrinic"
> <damir.petrinic@r...> wrote:
> >
> >
> >
> > Hi to all,
> >
> > I'm interested in Fire sensors protocol. I plan to design home
> alarm unit
> > with combined sensor system.
> > Does anybody have those data.
> >
> > regards,
> > Damir
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
sensors, and ask them. If they ask you to sign
a non-disclosure, do so.
2. Second thing would be to reverse-engineer the
interface of your existing equipment. This is
harder than #1 above, but if they won't tell you,
then they won't tell you. Note while
forbidding reverse-engineering is commonly put
in software licenses, generally it is un-enforceable.
Reverse-engineering is allowed by convention.
If it was patentable, then they should have
patented it, and you could look it up, pay the
licensing fees, and use it.
If it's a trade-secret, then you are allowed to
reverse engineer it, if you can.
--- In basicstamps@yahoogroups.com, "Damir Petrinic"
<damir.petrinic@r...> wrote:
> Thanks for information,
>
> I'm electronic engineer working on vessel. I have a lot of sensors
from
> previous fire alarm system and I would like to use them. Problem is
that I
> can not find any protocol data for sensors. Anyway I would like to
use any
> of brand name sensors for my system because I would like to design
my own
> system but not sensors.
> Is it possible to find any protocol data about.
>
> Thanks in advance
> Damir
>
>
Original Message
> From: "Allan Lane" <allan.lane@h...>
> To: <basicstamps@yahoogroups.com>
> Sent: Friday, July 09, 2004 6:55 PM
> Subject: [noparse][[/noparse]basicstamps] Re: Fw: Fire alarm sensors
>
>
> > Hello, I've worked with commercial Fire sensor
> > equipment. The protocols tend to be proprietary
> > to the vendor, with draconian "Non-Disclosure
> > Agreements (NDA)" to be signed if you REALLY
> > need the protocol.
> >
> > They do tend to use RS-485 drivers/recievers
> > on a party-line, if that helps. You can easily
> > roll-your-own protocol for your own equipment.
> >
> > BUT, you should be aware that Fire sensor equipment
> > is definitely considered Life-Safety equipment.
> > If your equipment starts any fires, your fire
> > insurance my be void. If you want to sell any
> > equipment, your reliability requirements may be
> > too high for a Stamp-based solution.
> >
> > With those disclaimers, Edwards System Technology
> > (EST) makes commercial fire equipment.
> >
> > --- In basicstamps@yahoogroups.com, "Damir Petrinic"
> > <damir.petrinic@r...> wrote:
> > >
> > >
> > >
> > > Hi to all,
> > >
> > > I'm interested in Fire sensors protocol. I plan to design home
> > alarm unit
> > > with combined sensor system.
> > > Does anybody have those data.
> > >
> > > regards,
> > > Damir
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
Subject and
> Body of the message will be ignored.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
<damir.petrinic@r...> wrote:
> Thanks for information,
>
> I'm electronic engineer working on vessel. I have a lot of sensors
from
> previous fire alarm system and I would like to use them. Problem is
that I
> can not find any protocol data for sensors. Anyway I would like to
use any
> of brand name sensors for my system because I would like to design
my own
> system but not sensors.
> Is it possible to find any protocol data about.
>
> Thanks in advance
> Damir
If you are not in a rush, you can backwards engineer the protocall,
or possibly tap into the sensor data before it is put into the serial
lines.
Also, if you have the old unit, you may be able to monitor that
system to figure out the operation.
another possiblilty is to obtain an existing unit from some local
building demolition or renovation or possibly a local alarm company.
I was lucky to get some old units from a local alarm company. they
would get a new customer and remove the equipment and replace it with
their own new stuff. They would just throw away the old stuff, and
in my case, threw it away into my car.
I still have one panel that is mostly intact. the name ESL is on the
front. I have only the panel, no sensors.
Regarding liability, you will most likely not get an insurase
discount because your stuff will not be UL listed and not recognised
by the insurance company.
BUT, if you are happy with your work, it may save you and your family.
My sincearest wishes you never get a chance to test it in any real
conditions.
Dave