The I/O Status is the type of alarm you have, either NO(normally open) or NC(normally closed). See Also, Alarm Input Type

The term Integrated Drive Electronics (IDE) refers not just to the connector and interface definition, but also to the fact that the drive controller is integrated into the drive, as opposed to a separate controller on or connected to the motherboard.

An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Its role has been characterized as follows: "A name indicates what we seek. An address indicates where it is. A route indicates how to get there."

An IP camera is a camera that does not require a video connection to a DVR. The camera receives its signal using wireless technology. IP cameras do require a power supply in order to function.

Ingress Protection Rating, sometimes also interpreted as International Protection Rating, classifies and rates the degree of protection provided against the intrusion of solid objects (including body parts like hands and fingers),dust, accidental contact, and water in mechanical casings and with electrical enclosures.

IR is a technology that allows for the capture of video at night and periods of darkness. Cameras with IR capability will use infrared LED’s that transmit out infrared light from the camera lens. The distance a camera can see in the dark is based on how many LED’s and the intensity of the LED’s that the camera has.