HD CVI DVR & Security Camera Installation

HHD security cameraDCVI (High Definition Composite Video interface) is an independent and proprietary technology where it is capable of transmitting High Definition Video over standard coaxial cable. Also, HD-CVI is capable of transmitting up to 2 Megapixel video over existing coax cable infrastructures up to 1600 feet without any third party repeaters Hardware; this provides a much better solution than HD-SDI which is limited to 300 feet transmission.

HDCVI is a new camera technology that allows 720P or 1080P video signals to be transmitted over solid copper conductor coaxial RG59U cable or better. The HDCVI cameras and DVR recorders are also inexpensive when compared to IP cameras. For customers with existing CCTV systems, chances are they are using coaxial cable already and upgrading to a HDCVI system for high definition video makes more sense as it saves tremendous costs of re-running wiring and equipment cost is also lower. For customer looking for new HD camera systems, HDCVI is a great lower cost alternative to IP network cameras, and is also simpler to install as it is plug & play and requires no network configuration for each camera as in the case of IP, which is a common hurdle for many users who are not familiar with networking.HDCVI CCTV System Surveillance camera

HD-CVI uses coax cable to transmit cameras just like HD-SDI. The major key differences is that HD-CVI allows you to go further with coax. You can transmit HD-CVI up to 1500 feet using coax. This bodes well for consumers that have longer wire runs in place. HD-CVI also allows you to enter the camera OSD ( on screen display menu ) from the DVR itself. This means that you can adjust the camera settings directly from the recorder without having to manually make the changes at the camera. This helps tremendously because you do not need to get up on a ladder to adjust cameras by hand. HD-CVI also allows you to use CAT5 ( networking ) wiring with baluns to transmit video. This is something you cannot do with HD-SDI. This adds more versatility to the installation. The one downside to HD-CVI is that currently the highest resolution available is 1080p (2 Megapixel ). This really does not pose a problem to most consumers as 2 Megapixel is more than enough resolution for their needs.

HDCVI can be used with regular RG59 (Siamese Cable). This type of cable is found typically on installations where regular analog cameras are setup in place. This cable is ideal for this application because you will not need to modify anything in your cabling when adding HDCVI cameras and and HDCVI DVR.

HDCVI cameras have an extra pair of cables. These cables are color coded with a purple and white color. When connected together the video through HDCVI will stop outputting and then the camera is able to reproduce video over an analog DVR or handheld monitor. This is by design and is just intended to be used solely to adjust the camera while it is mounted and connected to a hand-held monitor.

Benefits of HDCVI

Lower Cost
Unlike HD-SDI, which posts high demands on cabling and installation; HDCVI solution inherits the same installing means of conventional analog solutions, which is of great convenience and also decrease the cost.
Smart Control
As HDCVI transmits multiple-signal (video/audio and dual-way data) over one cable, it realizes video/audio synchronized transmission and reverse-signal transmission control at the same time, such as PTZ and zoom control; which further simpli‑es the installation.   8 Camera Security Systems


1.Real-time monitoring :

It has analog output port, VGA port and HDMI port.You can use monitor or displayer to  realize surveillance function. System supports VGA/HDMI output at the same time

2.Storage function:

Special data format to guarantee data security and can avoid vicious data modification.

3.Compression format:

Support multiple-channel audio and video. An independent hardware decodes the audio and video signal from each channel to maintain video and audio synchronization.

4.Backup function:

Support backup operation via USB port (such as flash disk, portable HDD,burner).Client-end user can download the file to local HDD to backup via network.

5.Record playback function:

Support each channel real-time record independently,and at the same time itcan support search, forward play, network monitor, record search,download and etc.Support various playback modes: slow play, fast play, backward play and ‐frame by frame play. Support time title overlay so that you can view event accurate occurred time Support specified zone enlargement.

6.Network operation:

Support network remote real-time monitor, remote record search and remote PTZ control.

7.Alarm activation function:

Several relay alarm outputs to realize alarm activation and on-site light control. The alarm input port and output has the protection circuit to guarantee device safety.

8.Communication port:

RS485 port can realize alarm input and PTZ control. RS232 port can connect to keyboard to realize central control,and can also connect to PC COM to upgrade system and realize maintenance, and matrix control. Standard Ethernet port can realize network access function.

9.PTZ control:

Support PTZ decoder via RS485. Support various decode protocols to allow the PTZ to control the speed dome.

10.Intelligent operation:

Mouse operation function In the menu, support copy and paste setup function


It is to establish the mapping relationship between the LAN and the WAN viathe UPnP protocol.

Contact us

Email: support@nationalsecurityalarminstallers.com
Phone: 718-760-9305
Address: Queens, New York (USA)

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