Glossary Terms

1080p

A set of HDTV high-definition video modes characterized by 1080 horizontal lines of vertical resolution (1920×1080 px). The p stands for progressive scanning. It is also known as Full HD (FHD), BT.709,...

Learn More

2-Way Audio

An intercom feature using both a speaker and microphone to enable audio communication in both directions between a transmitter (e.g., a camera) and a receiver (e.g., a video monitor or DVR).

Learn More

2CIF

A video resolution common to older security DVR systems that consists of 720 horizontal pixels and 240 vertical pixels (720×240). 2CIF has double the horizontal resolution as Common Intermediate Format (CIF).

Learn More

720p

A progressive HDTV signal format characterized by 720 horizontal lines of vertical resolution (1280×720 px). The p stands for progressive scanning. It has an aspect ratio (AR) of 16:9, and is also...

Learn More

Aspect Ratio

The proportional relationship between the width and the height of the display or image. It is commonly expressed as two numbers separated by a colon, e.g., a square image would have an...

Learn More

Balun

A type of transformer used to convert an unbalanced signal to a balanced one or vice versa. Baluns isolate a transmission line and provide a balanced output.

Learn More

BNC

A Bayonet Neill-Concelman or British Naval Connector (BNC) connector is a miniature quick connect / disconnect radio frequency connector used for coaxial cable.. It is commonly used for CCTV (Closed-Circuit Television) camera...

Learn More

CIF

Common Intermediate Format (CIF) is a video resolution common to Security DVR that consists of 360 horizontal pixels and 240 vertical pixels (360×240).

Learn More

Constant Bitrate (CBR)

Constant bitrate (CBR) is a term used in telecommunications, relating to the quality of service. Constant bit rate encoding means that the rate at which a codec's output data should be consumed...

Learn More

D1

A CCTV video resolution common to Security DVR that consists of 720 horizontal pixels and 480 vertical pixels (720×480).

Learn More