Re: 4 wire smokes and EOL's

[CH®IS <sh@xxxxx>]

"G. Morgan" <usenet_abuse@xxxxxxxxx> wrote in message
news:50fadc13483e839753a10a4265298d5bnp@xxxxxxxxxxxxxxxxx
> CH®IS wrote:
>
>>Anyway... I'm now wondering about how to do resistors correctly when you
>>have more than one smoke (either daisy chained or home run) on a zone.  Do
>>you have a resistor in each smoke, or just one at the end.  Being a
>>normally
>>open contact (DSC 5010), it would make sense to have them in each smoke,
>>but
>>I've seen them installed both ways.
>
> All the wiring goes in parallel to the last detector, with a single
> resistor
> at the last smoke.  Also, you may need a power supervision relay if the
> smoke
> doesn't have it built in.
>
> This is really basic stuff, it sounds like you don't have the experience
> to be
> working on a fire alarm reliably.  Please have someone who knows what they
> are
> doing inspect your work.
>

This would make sense, as I don't do fire alarms.

Although now I see why you'd just have one resistor.  I was thinking since
it's an "open circuit", it's open, but it's not.  However, if they're all
home run, there's no supervision for the rest of the smokes on that zone.

- Chris