UPS maintained POE solutions

Uninterruptible Power Supply (UPS)

If you utilise power over ethernet to supply your field devices then it is very simple to utilise an uninterruptible power supply (UPS) to keep them operating through a power cut …

Traditionally, with systems such as CCTV it was quite difficult to maintain power to cameras in the event of a mains disruption. Typically the cameras in the field would have been connected to the nearest mains supply point and a local battery backup solution was needed, or perhaps (if it was a well-planned intention from day one) a central power supply was installed with sufficient batteries to feed all the cameras and power distribution cables running from that central point to each camera.

Plainly, it’s much simpler to achieve continued blackout operation via POE, simply feed the power over ethernet injectors or hub from a standard PC-type mains UPS and your CCTV system can keep operating through a power cut.

NB – don’t forget the network switch and NVR (Network Video Recorder) or PC that you’re using for recording, these will need a UPS-maintained supply too (depending on your system layout you may need multiple UPSs or might be able to keep it all running with just one).

Of course the same applies to other POE-fed solutions such as VOIP telephones or wireless networks.

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