The PPU solves a common problem within the security industry
by allowing light poles with timed power to be used to power
security equipment 24/7 without outages. Light poles in parking
lots and along streets make great places for security cameras,
but unfortunately are often on centrally controlled timers which
cannot be changed. During the day when it is light outside, the power
is off. Since it is imperative that security equipment such as cameras
and communication devices operate continuously, the poles which
are potentially great assets are often not used for security
locations since the costly burden of trenching a separate power
line to the pole is typically cost prohibitive. The PPU is a
cost effective solution that allows pole assets to be used
by quickly charging a deep cycle battery when AC power is
available, and in turn supplying 12V DC to the loads on a
The PPU is quite different from an outdoor UPS in that typically a UPS can only supply power to security devices such as cameras and communications equipment for 1 or 2 hours, while the PPU can handle much longer times. Depending on the load and PPU model, the PPU can continuously power loads for days. For this reason, even when power is always available at a site, the PPU is often used as an ultra UPS, capable of handling extended outages without the security devices going off line. In addition to providing clean continuous power to the security loads day after day, the PPU contains an intelligent control mechanism. This mechanism can be used to monitor loads and automatically or manually reset them if needed, report unexpected power outages, precisely adjust charging voltage based on temperature, and other similar tasks.
A single PPU normally can provide plenty of power for the typical set of security devices deployed on a pole (1 or 2 cameras and communications device). In cases where the security loads consist of many devices or devices that consume more power than is typical, two PPUs can be used together to provide consistent continuous power. Alternatively, if charge time is adequate, a single PPU-2 may suffice for high power consumption sites.