Video Server (Encoder) = This enables an analog camera to be converted into an IP camera, able to stream digital video over an office network, phone, or ISDN connection. Therefore, an analog-based surveillance system can be upgraded and networked to function as an IP surveillance system. Video servers are particularly useful when a user has existing analog (CCTV) cameras with BNC (coaxial) cabling, that they are perfectly happy with…they just want to lose their DVR and upgrade to an NVR to gain some features, perhaps the ability to remotely monitor the system. In this scenario, you can get rid of the DVR, and plug the analog cameras into a 1,2,4,8 or 16 port server, which is then configured for your NVR system. ACTi and Axis …
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IPCS Word(s) of the Day: Video Capture Card (DVR Card)
Video Capture Card (DVR Card)= Computer cards that you can install on the motherboard of your own computer to create your own DVR. Avermedia and Geovision are two examples of Video Capture Card manufacturers.…
IPCS Word(s) of the Day: Varifocal Lens
Varifocal Lens = A camera lens in which the focus is not fixed. It can be manually or automatically adjusted.…
IPCS Word(s) of the Day: Vandal Resistant
Vandal Resistant = Cameras and other devices that are “vandal resistant” or “vandal-proof” have been manufactured in such a fashion as to make them difficult or nearly impossible to disable or disassemble.…
IPCS Word of the Day: TFTP
TFTP = Abbreviation of Trivial File Transfer Protocol, a simple form of the File Transfer Protocol (FTP). TFTP uses the User Datagram Protocol (UDP) and provides no security features.…
IPCS Word of the Day: Telephoto
Telephoto = In order to make distant objects appear larger, cameras require a telephoto lens.…
IPCS Word(s) of the Day: SDTV
SDTV = Standard definition television…
IPCS Word(s) of the Day: SD Card
SD Card= A flash memory card that provides storage on some IP cameras, digital cameras, cellphones and PDAs. SD Cards use the same 32x24mm form factor as the MultiMediaCard (MMC), but are slightly thicker (2.1mm vs. 1.4mm), and SD Card readers accept both formats. Introduced in 1999 by Panasonic, Toshiba and SanDisk, cards up to 4GB are available.…
IPCS Word of the Day: Resolution
Resolution= Refers to how much detail can be captured on a camera or displayed on a monitor. Cameras typically capture about 380 horizontal lines of resolution. High resolution analog cameras may capture 450 lines of resolution or more. High resolution IP cameras can record and stream in HD/Megapixel quality. The higher the resolution, the more detail that can be captured in a picture. The monitors and recording devices can generally handle at least as much resolution as the cameras can capture. Also remember that higher resolution images capture larger size frames (file size), and therefor, require more bandwidth to transport and more storage space to archive.…
IPCS Word(s) of the Day: Remote Surveillance
Remote Surveillance= The ability to view cameras from an alternative location. Many current DVRs have an on-board Ethernet (RJ45) part, which allow them to be “networkable,” and allow them to be viewed remotely over a WAN. All NVR systems accommodate remote surveillance.…