V.B.S. (Video,
Burst, Sync) |
A composite colour video signal. |
V.H.S. (Video Home
System) |
Name given to 1/2" tape format domestic video recorder. |
| V.S. (Video Sync) |
A composite monochrome video signal. |
| Varifocal |
A type of lens which enables a manual selection between two focal lengths to give the desired picture view. |
Vertical Interval
Switching |
Sequential switchers waiting until the current field has finished before they display the next camera, even though the dwell time has elapsed. |
| VEXT |
A multiplexer feature that uses a pulse generated by the VCR so that the multiplexer automatically adjusts to the VCR time lapse speed. |
Video Motion
Detection (V.M.D.) |
A system that uses the video signal from a camera to determine if there is any movement in the picture and set of an alarm. |
| VLAN (Virtual LAN) |
Devices on a LAN or LANs that are configured for communications as if they were attached to the same wire, when in reality they are located on a number of different LAN segments. |
| VXA |
Cost effective digital tape media. |
