Platform as a Service is a computing platform (operating system and other services) provided by a provider as a service over the Internet. As an example, there is an application development environment that can be subscribed and used immediately. 

P-iris Lens helps to improve the image quality with regards to iris contrast, resolution and depth of field and keeps the best image quality at different environment of light source. It is not only particularly effective for blurred image when the light source is to strong but also allows clear view on objects from near to far from the camera. 

Built-in Power over Ethernet (IEEE 802.3af) makes installation easier, cheaper and more secure since Power over Ethernet can take advantage of UPS (uninterrupted power supply), which provides back-up power in case of a power failure. 

Power over Ethernet Switch detects that there is no power in the circuit and automatically supplies power to the connected device.