HD Cameras
An HD camera sends high-definition video over coaxial cable, so it can usually replace an analog camera on the existing cabling. Record it on an HD standalone DVR.
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About HD Cameras
HD cameras send high-definition video over coaxial cable, so an analog CCTV system can usually be upgraded on its existing cabling. Videoline's HD cameras run from 1MP to 8MP in bullet, eyeball and dome housings, with infrared night vision and IP66 or IP67 weather protection. Many of the HDCVI cameras switch between CVI, TVI, AHD and standard analog (CVBS) output, and the vari-focal models have a motorized 2.7-12 mm lens with infrared up to 60 m. Two HD speed domes add 25x or 30x optical zoom and infrared up to 150 m. Record them on an HD standalone DVR.
Questions about HD Cameras
Can I upgrade analog CCTV cameras to HD without new cabling?
Yes: HD cameras send high-definition video over the same coaxial cable that analog cameras use, so an upgrade usually means new cameras and a new recorder, not new cable. Videoline's hybrid DVRs record HDCVI and analog cameras side by side, so the old cameras can be replaced a few at a time.
What do CVI, TVI, AHD and CVBS mean?
CVI (HDCVI), TVI and AHD are three competing ways of sending high-definition video over coaxial cable, and CVBS is standard-definition analog video. A DVR records only the formats it supports. Many of Videoline's HDCVI cameras, such as the HC250-IRD, switch between all four, so one camera suits a recorder built for any of them.
Should I choose a fixed-lens or a vari-focal HD camera?
Choose vari-focal when the view has to be framed or narrowed after installation, and a fixed lens when a standard wide view will do. Videoline's fixed HDCVI cameras have a 3.6 mm lens; the vari-focal models, marked Z, have a motorized 2.7-12 mm lens and infrared that reaches 60 m instead of 30 or 40 m.
Do HD cameras need a separate power supply?
Yes: unlike an IP camera powered over its network cable, an HD camera on coaxial cable usually takes its power from a separate supply. Videoline's HDCVI bullet and eyeball cameras run on 12 V DC, and the HC150Z-IRW and HC180Z-IRW also accept 24 V AC. The HC120-IRW and HC140-IRW are listed for 12 V DC or PoE.