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Four Channel Embedded Digital Video Recorder -PAL
If you’re after the highest standards in DVR equipment to look after assets or family then here it is, an excellent 4 channel DVR with Preview LCD, internal HDD capability and USB connectivity. You’ll be impressed from the get-go after you simply install your own 3.5 inch HDD (up to 200GB), and easily connect your cameras. From here this unit switches into top gear, with dual monitor ouputs, an s-video output (ideal for a TV), sensor inputs and an alarm output. Recording is possible on all channels simultaneously and in a number of different profiles so you can go all out for quality or step the resolution and frame rate down a bit for maximum recording times. All these features packed into a small, actively cooled (50mm fan) rugged steel enclosure. A powerful and but discreet product and an all-time great seller get yours today from Chinavasion at great wholesale prices with no MOQ.
Note: This unit does not come with a hard disk drive you will need to purchase this separately.
Manufacturer Specifications
1.5 Inch TFT LCD Screen
Recording Format: MPEG (AVI)
Recording Quality: Low, Normal, High
Default Frame Rate Settings: PAL: 25 Frames per Second
Recording Frame Rates: Frames per Second -25, 15, 10, 7, 5, 4, 3, 2, 1
Inputs: - 4 Channel BNC (RCA with Small Adapters) Video Camera Input - 4 Motion Sensor/Trigger Inputs
Outputs: - 4 Channel Camera Loop Back - 1 Alarm Output - 2 BNC (RCA with Small Adapters) Monitor Outputs - S-Video Output - USB Output for PC link
Power Source: 12 V DC
Dimensions: 290mm x 220mm x 52mm (L x W x H)
Manufacturer Ref: ZHBW2ME7399I
Product Notes
Local PC monitoring and backup via USB- no need to take out the hard disk
Password Protection- video captures will be safe from accidental erasure/ tampering
Tough Stackable Casing
Internal Alarm When Video Signal Lost
Power Failure Protection, Automatic Restart
Stand-Alone Operation not effected by PC Viruses etc.
Package Contents
Model CVAJM-913-PAL DVR
Manual
Power Adapter
3 X RCA cables (2 male connectors at each end)
Software CD
1 X IDE to SATA adapter
10 X BNC to RCA (female) Adapters
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Current Reviews: This product was added to our catalog on Saturday 02 December, 2006. About the Author
The Best Distributor Of Chinese Wholesale Electronics.
China Electronics Wholesale and Dropship: Gadgets, Cell Phones, Car DVD Players, Digital Cameras, Digital Camcorders, MP4 Players, MP3 Players, Spy Cameras, Security Products, PC Accessories, and more…
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Maximum Analog Resolution?
I am looking at purchasing a new monitor for my computer. I am looking at buying a CRT monitor which only has VGA and BNC connectors. It has a maximum resolution of 2048×1536.
My computer has an nVidia 7900GS. Its maximum resolution is reported as 2560×1600, which is larger. However, since I will be using a DVI->VGA converter, I want to be sure that that the video card will be able to put that resolution out over a single analog connection, and not require dual-link DVI.
Any help would be appreciated!
I dont mean that I want the monitor to match the same resolution as the video card. I want to be sure that the video card can output the monitor’s maximum resolution over its analog outputs (using DVI->VGA converter)
There shouldn’t be any issue running that high of a resolution over analog as long as the cable is well shielded. The only issue in running that resolution would be that the signal generates too much interference over the cable and the display doesn’t sync well enough.
Also, make sure that whatever resolution you send to the monitor that the monitor is capable of handling. Most new monitors simply won’t display out-of-range signals. Assuming this monitor is new enough, then if the mode is out-of-range, it should give you a black screen. Of course, if you get a black screen, it’s kind of hard to configure your computer. So, be sure that you test the resolution and refresh rate before you commit.
If you’re concerned that the monitor won’t work, see if you can take the computer there and hook it up to a demo monitor to test. Alternatively, buy it from a place that gives a 30 day money back guarantee so if it doesn’t perform as expected, you can return it.
A Simplified Approach To Cables and Cabling Terminology
We often take it for granted but the thing that makes ours an efficient electronic world is cable. The devices that we use everyday, the ones we have learned to rely on for information, entertainment and convenience, are all run through various cabling technologies. It is therefore important to know the different kinds of cable that connects these devices. By definition, a cable is a set of two or more wires that are held together and assembled to act as a single unit. Since wires are made of various metals, they conduct electric current. Keeping this in mind, they have 2 general functions – first is to power electrical devices, and the second is to conduct an electric signal. General Cable Classifications Power cables are straightforward enough; they connect your electrical or electronic devices to a main power supply in order for your device to operate. Every electrical appliance needs one; otherwise you would not even be able to turn the device on. Connecting cables that link your various devices to each other are the ones that carry a signal. For instance, your computer monitor is connected to your computer via its own connector. Signal-carrying cables can be differentiated into the type of signal that they carry. In general, these would either be analog or digital. They may also be defined further by the nature of the signal – audio, video or data. Different Types of Cables and Connectors There are many kinds of cabling used for consumer electronics. You can recognize them mostly by their various connectors. The following are some of the more common cabling technologies used in modern appliances and devices. Analog Audio. Most audio devices are multi-conductor shielded cables. The tell-tale sign is the “jack plug” connector or TRS (short for Tip-Ring-Sleeve). This is used commonly for such devices as microphones and headphones. TRS is typically a 3-conductor cabling technology but there are variations that use 2-conductor, 4-conductor and even 5-conductor connections. Apart from TRS, other connectors are used for analog audio. RCA connectors, typically colored in red and white, are very common and are usually included with most radios, DVD players and television sets. Then there are XLR connectors, which are used for professional microphones and high-end audio equipment. Digital Audio. The most common standard for this is S/PDIF (Sony/Philips Digital Interconnect Format). The signal can travel through optical fiber technology terminated by TOSLINK connectors. Otherwise, coaxial or coax – similar to the type used by Cable TV companies – can also be used. These can then be terminated by either BNC connectors or RCA connectors. Analog Video. Most video connectors come as RCA colored in yellow. This is referred to as composite format and is a consumer standard for such video-output devices as Betamax, VHS, Laserdisc, VCD and DVD players. For computer monitors, the standard was the VGA connector or the DE-15 subminiature. It is still in use today but there are monitors nowadays that are starting to use the DVI format. DE-15 is also known as HD-15 because some early HDTV units also use the connector. Others in this set include S-video and component video. The S-video terminal plug looks like the PS/2 plug used previously on pre-USB models of computer mice and keyboards. On the other hand, component video use RCA connectors for terminals but differ from standard RCA video connectors in that it integrates three connectors (typically coded in red, blue and green) in one unit. Digital Video. There are currently two standards used in the industry. The first is DVI or Digital Visual Interface and it is set to replace the VGA standard in computer monitors. The DVI-I version of this connector are compatible with VGA as well as with HDMI cable connections (using a special adapter). HDMI is the second type of connector in this category. It stands for High-Definition Multimedia Interface. HDMI cable is actually used for both audio and video signals. This is the latest cabling technology to support the most high-end electronics in the market today. Two other cable technologies are worth mentioning; these are Firewire and USB. They are digital connectors and are used mainly to capture and output audio-video as well as data between a wide range of peripheral devices and a computer. This Article is written by John C Arkin from news.printcountry.com the contributor of Printer & Printer Ink Cartridges News. More information on the subject is at A Simplified Approach To Cables and Cabling Terminology, and related resources can be found at HP 02 Ink Cartridges.
About the Author
This Article is written by John C Arkin from news.printcountry.com the contributor of <a href=http://news.printcountry.com>Printer & Printer Ink Cartridges News</a>. More information on the subject is at <a href=http://news.printcountry.com/2010/05/a-simplified-approach-to-cables-and-cabling-terminology.html>A Simplified Approach To Cables and Cabling Terminology</a>, and related resources can be found at HP 02 Ink Cartridges.
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Color Cameras are more popular, due to their clearer identifications. But, in low light conditions, B/W cameras are more ideal, because they generally require less illumination. Newer models of Day/Night cameras work as color camera during daytime and B/W at night.
2. What basic equipments are necessary to start video surveillance?
Camera body, Lens, Mount, Cable, and Power Supply.
Some cameras (like dome and bullet type cameras) come with built-in lenses. You will also need CCTV monitor (or regular TV), quad splitter or switcher to combine more than one camera, recorder (like DVR), outdoor housing case and other accessories. Wireless systems are great way to avoid cabling. Network based Web Cameras and DVRs are for remote surveillance.
3. What if I need more than one camera?
A quad splitter, 4 channel or 8 channel switcher, or multiplexer can be used to combine multiple cameras into one monitor or recorder. DVRs usually come with a built-in multiplexer.
4. Hidden Cameras
If you want a hidden camera, you have two options; you can either build one with a mini or an ultra-mini camera, or buy one. Some ultra-mini cameras are only as big as a quarter to hide more easily. Hidden cameras built-in clocks, radios, or smoke detectors are also available but are generally more costly. Please note that, in most US states, using hidden cameras with audio in a covert way is prohibited.
5. Placing cameras outdoors
You may use an outdoor housing case, with or without heater and/or blower. The heater and/or blower built-in housing cases generally require a separate power source. Some cameras are made water resistant and do not need separate housing cases. Some of these also come with removable sunshields.
6. When are infrared cameras necessary?
Economically commercialized infrared cameras, some also water-resistant to be installed outdoor, can see up to 40 to 80ft distance in total darkness. You may also use infrared illuminators, which can illuminate up to 100ft (Color cameras, unless their IR filter is removed, do not work with infrared illuminators.) Infrared cameras work as ordinary video camera during daytime. Color infrared cameras work as B/W ones at night.
7. What is an ideal angle for a lens to cover?
Widely used and recommended angle of view of the lens for surveillance purpose is 72o to 78o. Narrower will give you clearer pictures. Wide angles like 92o can cover more area but it may show distorted pictures.
8. Vari-focal vs. Zoom Lens
Focal length and focusing for vari-focal lens should be adjusted respectively while zoom lens focuses automatically when the focal length is adjusted. Manual zoom lens needs to be manually adjusted while motorized zoom lens can be controlled with a remote controller.
9. Manual Iris vs. Auto Iris
If the lighting condition changes significantly and frequently, like the sun, an auto iris lens is required. If the lighting remains same, a manual iris or a fixed iris lens is recommended. Most CCTV cameras accept DC auto iris lens while some special cameras use video auto iris lens.
10. Do I need pinhole lens?
A pinhole lens with a tiny opening can be hidden in the wall, ceiling or other objects. Some mini cameras have a built-in pinhole lens. To mount a pinhole lens to a standard camera is very expensive.
11. CCTV Monitor vs. Standard TV
If you are use only one camera, a TV (which has a RCA video input) is definitely recommended. Even for more than 1 camera, if you use a processor like a quad splitter, a switcher, or a DVR (Digital Video Recorder), a TV would be fine. But, for special features like slave video outputs (to be connected to additional monitors), alarm systems, or for multiple inputs, professional CCTV monitors work best.
12. CRT vs. LCD Monitor
Conventional CRT monitors are bulky and heavy while they are cheaper than LCD monitors which has higher resolution. If you have enough budgets and want to use one monitor for both CCTV and computer, LCD monitor is recommended. 17″ & 19″ are popular sizes for LCD monitors.
13. Monitor Input Connectors
BNC is commonly used for connecting to both CRT and LCD monitors. These days, most LCD monitors have an S-Video input as well as a 15-pin Mini D-Sub for PC Signal input.
14. Wireless vs. Wired Transmission
A wireless system is convenient in avoid cabling works, but can sometimes be affected by high voltage power lines, unseen razor waves, large machines like lathes, and metal walls. Wired transmission guarantees stable video. Coaxial cable is most used for CCTV cameras.
15. 12VDC vs. 24VAC
24VAC system is more professional and most CCTV cameras work with a 24VAC power supply. Mini cameras, dome cameras, and bullet type cameras are usually 12VDC system. Recently developed cameras have both 12VDC and 24VAC inputs.
16. Battery operated cameras
Many small sized cameras work with 12VDC battery pack; however it requires correctly matched polarity. You may also use a “power cord” (easily found at any auto parts shop) that can draw 12VDC through the car cigarette lighter.
17. Motion detection
Most DVRs now come with built-in motion detection software to trigger recording. You can program the sensitivity and detection zone. It works with any change of the pixels within the picture frame. You can also install a hardware motion detector connected to the DVRs to trigger recording.
18. Pan, Tilt, and Zoom control
A dome type camera that already has built-in PTZ is easy to install, maintain, and control. You can also control it on the computer monitor with the mouse if the PTZ system is connected on the network via a video server.
19. Time Lapse VCR vs. DVR(Digital Video Recorder)
Conventional Time Lapse VCR, despite the inconvenience in reviewing the recorded pictures, is more economical than a DVR (Digital Video Recorder). DVRs are more popular for its convenience and picture quality.
20. Remote Surveillance over the Network
Network DVR or Web Camera, connected to the Internet or LAN and assigned with an IP address, can be monitored at a remote place. DSL or T-1 line is required to be connected to the Internet.
21. HD CCTV System
As the TV Broadcasting changed to HD (High Definition) System, it’s time for HD cameras to come to the market. Still, the traditional standard resolution system does not accept HD cameras and you have homework to prepare peripheral devices such as recorders to accept the HD cameras.
About the Author
2mcctv.com 2mSolutions Security Group Provides the unique expertise to bring the perfect solutions to your commercial, educational, and governmental security necessities.
2985 S. State Hwy. 360 Suite 130 Grand Prairie Tx. 75052
