In a UPnP network, advertisement is the act of one device presenting its services for another device to use. In Endura, the UPnP advertisement startup and renew intervals are set from the System Configuration tab of the Setup window.

In video security: An alarm occurs when a camera detects motion or there is a change in a physical alarm input, such as a door opening or closing.

The alarm relay is the relay used to output an alarm condition based on a specific system or event message criteria.

The alarm relay is the relay used to output an alarm condition based on a specific system or event message criteria.

Autofocus is the ability of the lens to remain in focus during zoom-in, zoom-out, and motion functions.

Abbreviation for binary digit; the smallest unit of information a computer can use. A bit is either one or zero (a high or low voltage state).

Bit rate is the number of bits that are transferred between devices in a specified amount of time, typically one second.

In NTSC and PAL video signals, the brightness information at any particular instant in a picture is conveyed by the corresponding instantaneous direct current level of active video. Brightness control should be adjusted so that the black picture content displays as true black on your monitor.

Bits per second. This is a bit rate measurement.

Bytes per second. Also abbreviated as B/s.