Line Driver Needed??
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Posts: 46,084
i am building a stamp powered home security system,
state machine style i think, but in any of my
projects, i have never driven this length of wire
(figure ~300' max from the base station with 24 guage
phone line along the perimeter of the room).
1) at what distance do i need to add some sort of
driver or amplifier for the signal lines? is there a
rule of thumb or a good website to reference??
2) what drivers would you then recommend???
3) anyone out there set up anything interesting other
than the usual camera, keypad entry, and door/window
switches??? i figure that as long as i am at it, i am
gonna wire up some small battery operated emergency
lighting with a relay to "sense" when the power goes
out. sure beats candles or flashlights.
anyway, if someone has some insight....fire away,
thanks.
ross
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state machine style i think, but in any of my
projects, i have never driven this length of wire
(figure ~300' max from the base station with 24 guage
phone line along the perimeter of the room).
1) at what distance do i need to add some sort of
driver or amplifier for the signal lines? is there a
rule of thumb or a good website to reference??
2) what drivers would you then recommend???
3) anyone out there set up anything interesting other
than the usual camera, keypad entry, and door/window
switches??? i figure that as long as i am at it, i am
gonna wire up some small battery operated emergency
lighting with a relay to "sense" when the power goes
out. sure beats candles or flashlights.
anyway, if someone has some insight....fire away,
thanks.
ross
__________________________________________________
Do you Yahoo!?
Faith Hill - Exclusive Performances, Videos & More
http://faith.yahoo.com
Comments
The voltage drop across this should not be a concern.
I run a 1 horsepower pump on 6 gauge 1200' total circuit footage with no
problems, 24 ga. should be able to carry a milliamp for many miles.
From: "Klutch" <klutch66@
> i am building a stamp powered home security system,
> state machine style i think, but in any of my
> projects, i have never driven this length of wire
> (figure ~300' max from the base station with 24 guage
> phone line along the perimeter of the room).
> 1) at what distance do i need to add some sort of
> driver or amplifier for the signal lines? is there a
> rule of thumb or a good website to reference??
> 2) what drivers would you then recommend???
> 3) anyone out there set up anything interesting other
> than the usual camera, keypad entry, and door/window
> switches??? i figure that as long as i am at it, i am
> gonna wire up some small battery operated emergency
> lighting with a relay to "sense" when the power goes
> out. sure beats candles or flashlights.
> anyway, if someone has some insight....fire away,
> thanks.
> ross
>
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