DC Supply Question

Hi All,

I am a newbie to this group so if there is a more appropriate place to post
these types of questions, please let me know.

Essentially, I would like to put a rocker switch inline with the 12VDC power
cable that energizes a basic surveillance camera (<1A) remotely high in the
corner of a given room. With its mounting location as high as it is, I need
to put a separate switch in there to allow the camera to be powered off as
needed (without unplugging the power cube). I have purchased a 25ft
extension power cable terminated with a 2.1mm jack on one end and a 2.1mm
plug on the other end. My goal is to simply take a small enclosure and put
a 5A rocker switch (SPST) inline on the negative DC lead of the extension
power cable.

Thus my question: I presume, given that DC flows from neg to pos, putting
the SPST switch on the neg power lead is most appropriate. I can't think
of any reason why I would need to use a DPST to switch out both the neg and
pos leads.

Any concerns with this approach?

Thanks in Advance,

--Will


.

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