Appendix E. Glossary
Term | Definition | |
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| |
| Setting sensitivity of motion detection for a camera determines how much | |
Sensitivity | or little movement is required before an alarm is triggered. A lower setting | |
| triggers more alarms than a higher setting. | |
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| |
Sensor | An alarm sensor is available for each camera channel. Sensors are | |
normally open (N/O), or normally closed (N/C). | ||
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| |
Spot monitor | A monitor that displays video but that does not provide access to on- | |
screen display menus. | ||
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| |
Sync video | The video camera to which recorded audio is associated. | |
channel | ||
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| |
Terminal block | A group of connectors on the rear panel of a DVR into which wires are | |
inserted that control camera position. | ||
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| |
| A scene identifier presented by the | |
Thumbnail | for video. Selecting a thumbnail displays the recorded video that starts | |
| with the thumbnail frame. | |
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| |
Tilt | To reposition a camera up or down, usually achieved with a computer | |
mouse or keyboard joystick control. | ||
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| |
USB | Universal Serial Bus. A standard serial bus used to connect external | |
devices such as a flash drive or hard disk drive to the | ||
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| |
VGA | Video Graphics Array. An analog computer video standard. | |
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| |
Zoom | To enlarge or reduce, on a continuously variable basis, the size of a | |
televised image primarily by varying lens focal length. | ||
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Dimension
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445
88
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Digital Video Recorder 120 User Guide | Digital Video Recorder 121 User Guide |