CCTV Camera Blog » MPEG4

4 Channel Digital Video Recorder – MPEG4 Compression -NTSC

admin — Tue, 24 Nov 2009 04:45:16 +0000

Sometimes only the best will do, if you need a single standalone product that can act as the heart of your surveillance system then you’re on the right page.
This DVR powerhouse is brimming with features ensuring easy integration with existing security networks as well as simple setup for new ones. With two SATA drives connected (not included) you can address 1TB (1000GB) that’s an incredible amount of space for archived recordings, and if they get full easily back up via USB or network. MPEG4 compression is completed on board to minimize disk space usage and the unit is able to encode all for channels at once, and do 2 of them with audio – simply incredible. Add a VGA monitor to the output and you have yourself a professional security station with more functions than you’ll know what to do with.
Order now from Chinavasion and be simply blown away by this great wholesale DVR.

This product uses NTSC color system

China Manufacturer Specifications
Resolution:
Monitor Output: 704 x 576
Capture: 352×288, 352×576, 704×576 Compression Standard: MPEG4 Video Signal: NTSC (525 line, 60 field / sec) Video Input
Composite Video: 1.0V p-p/75
BNC connector x 4 Video Output
Composite Video: 1.0V p-p/75
BNC Connector x 1
VGA output Audio Input: RCA x 4 Audio Output: RCA x 2 Alarm input: Non-voltage contact closure, always open or closed, 4-channel input Alarm output: Non-voltage contact closure, always open, 2-channel output Alarm
Alarm sensor input
Video detection alarm
Video loss alarm
Disc full warning Control
Compatible with PTZ- RS485 interface x 1 Backup mode
USB backup
Network backup Hard Disk
Up to two SATA 3.5 inch drives (Hard disks NOT included) Bitstream installed:
Stall seven Bitstream : 300MB/h, 400MB/h, 500MB/h, 600 MB/h. 700 MB/h, 900 MB/h
Own: 1~4000MB/h Security functions:
Data encryption + 2
Password management Power Source: DC12V 5.0A (Mains Adapter Supplied) Dimensions: 435 x 63 x 360mm MAN Ref: M7P8LTEF59L7

Other Features:

4-channel trigger input and 2-channel alarm output Alarm
Alarm sensor input
Video detection alarm
Video loss alarm
Disc full warning 4-channel synchronization of audio and video compression Multiple Inquiry Modes Built-network function, support for TCP/IP, WAN etc. It is compatible with PTZ, equipped with infrared remote control Graphical User Interface for Simple Operation Compatible with two-way intercom network

Accessories:

Manual Remote Control Software CD Power Brick Mouse
Manufacturer and Origin: China Login for Wholesale Discount Price

Visit the website: http://www.electronicschinawholesale.com
You will find much more.

Even lower prices available for you if you’re ordering in larger wholesale quantities. Get your samples first then contact us for your personal discount quotes!

If you wish to make comments or reviews about this product, login and use the product review box. Please open an inquiry ticket if you have questions regarding this product.

Current Reviews: This product was added to our catalog on Saturday 15 March, 2008.

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4 Channel Digital Video Recorder – MPEG4 Compression -PAL

admin — Mon, 23 Nov 2009 23:45:19 +0000

Sometimes only the best will do, if you need a single standalone product that can act as the heart of your surveillance system then you’re on the right page.
This DVR powerhouse is brimming with features ensuring easy integration with existing security networks as well as simple setup for new ones. With two SATA drives connected (not included) you can address up to 1TB (1000GB), that’s an incredible amount of space for archived recordings, and if they get full you can then easily back up via USB or network. MPEG4 compression is completed on board to minimize disk space usage and the unit is able to encode all for channels at once, and do 2 of them with audio – simply incredible. Add a VGA monitor to the output and you have yourself a professional security station with more functions than you’ll know what to do with.
Order now from Chinavasion and be simply blown away by this great wholesale DVR.

This product uses PAL color system

China Manufacturer Specifications
Resolution:
Monitor Output: 704 x 576
Capture: 352×288, 352×576, 704×576 Compression Standard: MPEG4 Video Signal: PAL (525 line, 50 field / sec) Video Input
Composite Video: 1.0V p-p/75
BNC connector x 4 Video Output
Composite Video: 1.0V p-p/75
BNC Connector x 1
VGA output Audio Input: RCA x 4 Audio Output: RCA x 2 Alarm input: Non-voltage contact closure, always open or closed, 4-channel input Alarm output: Non-voltage contact closure, always open, 2-channel output Alarm
Alarm sensor input
Video detection alarm
Video loss alarm
Disc full warning Control
Compatible with PTZ- RS485 interface x 1 Backup mode
USB backup
Network backup Hard Disk (3.5 inch)
Up to two SATA Drives (Hard disks NOT included) Bitstream installed:
Stall seven Bitstream : 300MB/h, 400MB/h, 500MB/h, 600 MB/h. 700 MB/h, 900 MB/h
Own: 1~4000MB/ h Security functions:
Data encryption + 2
Password management Power Source: DC12V 5.0A (Mains Adapter Supplied) Dimensions: 435 x 63 x 360mm MAN Ref: M7P8LTEF59L7

Other Features:

Accessories:

Manual Remote Control Software CD Power Brick Mouse
Manufacturer and Origin: China Login for Wholesale Discount Price

Visit the website: http://www.electronicschinawholesale.com
You will find much more.

Even lower prices available for you if you’re ordering in larger wholesale quantities. Get your samples first then contact us for your personal discount quotes!

If you wish to make comments or reviews about this product, login and use the product review box. Please open an inquiry ticket if you have questions regarding this product.

Current Reviews: 1 This product was added to our catalog on Tuesday 10 July, 2007. Reviews for: (4 Channel Digital Video Recorder – MPEG4 Compression -PAL) 4 Channel Digital Video Recorder – MPEG4 Compression -PAL It works but.. you need a lot of knowhow yourselfby Mike Eekhof – on 12/13/2008

makes a lot of noise, manual is in the most terrible non-understandable english ! Absolutly useless !
But it works though..
I have to test the network function..
The CD-rom installation files were wrong.. But I got it by mail from chinavasion.

H.264 compression versus MPEG4 compression for cctv video storage and transmission

admin — Sun, 22 Nov 2009 10:45:04 +0000

Today many security managers and business professionals are switching to digital options for their CCTV. While this represents a slightly larger investment, it also largely increases flexibility, quality and efficiency through a variety of different options and functions. One of these options is the ability to select which format to compress videos in.

On your computer you may have downloaded a variety of videos; if you look at each of these by right clicking on them and selecting ‘properties’, you will notice that some of them are different file types. These will vary from .WMV to .MPEG to .AVI and each has different properties. What this refers to is the videos’ ‘compression type’. If you consider the size (in terms of kilobites or megabites) that an image size takes up, you can imagine why it’s important that these images are somehow ‘cut down’ in order to save space when potentially millions of them are strung together to create a video. This happens at the level of the code (the language that the computer or video device reads), but can be visible in the videos’ appearances as washed out colours, lower resolutions, blurry edges or fuzzy motion. The aim here is to find a satisfactory balance between viewing quality and file size – so that you can store as much information onto a hard drive or disk as possible without sacrificing too much detail.

When recording with a DVR (digital video recorder), this works in much the same way and the videos must be compressed when they’re saved. Only in cases of CCTV, compression type is far more crucial as you’re not only dealing with larger quantities of footage (sometimes hours’ and hours’ worth) but also with delicate situations that require the highest possible frame-rates and resolutions if you are to correctly identify problems. For these reasons, when purchasing a DVR it’s highly important that you find out what compression types it supports (sometimes referred to simply as ‘video formats’) and what the different titles represent.

The two main types of compression format for digital CCTV are ‘H.264 format’ and ‘MPEG’ (AKA Motion JPEG, and by which is usually meant MPEG2). The key thing to note here however, is that H.264 format is also known as MPEG4, meaning that it is in fact an updated version of the alternate format. H.264 video compression format therefore drastically reduces both the bandwidth and storage requirements of the files by keeping them small while keeping the image quality high. Usually however this results in a lower ‘bit rate’ for the video which means that fewer ‘bits’ of information are available per second, but the method of encoding ensures that these lost ‘bits’ are unnecessary (high frequencies for example). With an average set up with four cameras at thirty frames per second and a resolution of 320 x 240 (with motion sensors), you can expect MPEG4 compression to provide 80 hours worth of footage at 20-25 gigabites.

However unlike MP2, MP4 has no government enforced standard and as such does not have universal interchange across codecs of various designs. This means that MP2 is more flexible and adaptable as well as having a higher bit rate giving it its own unique advantages. Fortunately however, today most cameras support both formats and even where they do not file conversion is often available.

Learn more about H.264 vs. MPEG4 compression for CCTV camera equipments. You can look at some CCTV options by visiting his site.