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Re: Tech Help!



Jim  I hope  you added a cap to that  output after the full bridge  to help
smooth the pulse also  maybe a voltage diode to level the voltage spikes to
a fixed voltage.. .
on a cheap  camera  the pulse can cause all kinds of oddities  down the
road..
RTS


"Jim Rojas" <jrojas@xxxxxxxxxxxx> wrote in message
news:hn0f66$eeh$1@xxxxxxxxxxxxxxxxxxxx
> I have been on plenty of prewires that have cat 5 running all over the
> place. It was not cost effective to replace all the cables, so I installed
> a 24VAC camera power supply, and put a full wave bridge rectifier at each
> camera. I replaced all the fuses in 24VAC supply in favor of auto
> resettable fuses. It is a little extra work, but this actually gives you
> more flexibility. I also installed resettable fuses after the rectifier.
>
> Jim Rojas
>
>
>
> Rockytsquirrel wrote:
>> if you consider  the voltage drop and loss of current over distance, you
>> will see that conductor size will have an effect on the ability of your
>> sensor/device to function properly.
>> DC does not like to travel very far before it gets tired and slows
>> down.. ;-)
>> AC does not suffer the same failings..
>>
>>
>>
>>
>> "mleuck" <m.leuck@xxxxxxxxx> wrote in message
>> news:53c87150-e9e7-4d41-a37a-61d7ef370511@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>>> On Mar 6, 1:35 pm, "Doug" <n...@xxxxxxxx> wrote:
>>>> "Spellcheck Patrol" <alarminst...@xxxxxxx> wrote in message
>>>>
>>>> news:be04f2c8-8d42-43e9-81a5-f3defeb77607@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>>>> On Mar 4, 11:27 pm, Jim <alarmi...@xxxxxxx> wrote:
>>>>
>>>> >That's where those 72 beautiful LEDs come into play. Works in 0 lux
>>>> >with an IR distance of 150 feet
>>>>
>>>> I've yet to see a low cost IR camera that in the real world performs
>>>> anywhere close to what the manufacturers specifications claim. It seems
>>>> common for the manufactures to grossly exagerate the performance of
>>>> their
>>>> LED equipped cameras.
>>>>
>>>> Doug
>>>
>>> I used to feel the same way about motion detectors
>>
>


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