Micro & Mini Recorders & Small Cameras

Posts Tagged ‘hardware’

Choosing a Camera for Inspection: Color or Monochrome?

Choosing a camera for inspection: Color or monochrome?

When purchasing a new suveillance system you must decide between color and monochrome cameras. Many times businesses decide on a system without understanding how the choice affects the performance. Most surveillance systems include color cameras because users feel more comfortable with color images. They are more into the aesthetics rather than performance of the system. On the other hand, some owners may want monochrome cameras because they assume they would cost less, which is not always the case. The best decision an owner can make is they must consider the strengths and weaknesses of each system so they can get the best value for their money.

 

High Resolution

A single pixel can yield only intensity information. Most color cameras determine pixel color with a combination of filters and interpolation from the intensity values of adjacent pixels. This interpolation reduces resolution. For example, the arrangement of blue and red pixel sites in a Bayer filter makes a single-imager color camera more prone to horizontal and vertical interference, particularly on objects with straight edges that follow a row or column. Therefore, designers often favor monochrome cameras when resolution is most important such as in banks and stores.

 

Owners who want their systems in both color and the highest possible resolution need another alternative, a color-imaging system that does not interpolate. In this case, three separate sensors gather three color channels of information. A separating prism placed in front of the three sensors directs the red, green, and blue light to the proper detector. While the three chip color camera present resolution that matches that of a monochrome camera, the prism and additional sensors make this system more expensive. Also, these cameras use more power than their counterpart. Finally, although the sensors in these color cameras may equal the resolution of the monochrome sensors, they are not always easily available. Many times, you can get the required resolution on a large-format single-chip color camera by choosing the lenses with an appropriately adjusted magnification.

 

Inspection Example

An inspection system that must decide whether fuses are correctly placed in an electrical harness often needs a computer to make color differentiation evaluations. Because fuses are color coded, you might be inclined to use a color camera. If the purpose requires human visual inspection on an analog monitor, a color camera would be a good choice. If the components were in color, inspectors would find it easier for them to do their job.

 

But if a computer performs the inspection where they must distinguish few colors, a monochrome camera may provide a more cost effective solution. Most image-processing algorithms process pictures to a pixel depth of 8 bits. A color camera would take the color planes from each image and analyze it in three separate color channels. A final pass-fail decision would have to compare each analysis against the others. The ensuing processing time of the images could slow down the inspection step, limiting system throughput. In this case, image-processing speed and higher resolution requirements favor a monochrome camera.

 

However, a monochrome camera cannot distinguish colors well. Significant color variations within batches of similar filters can manufacture incorrect results. To improve contrast, adding a color filter usually works. So, a filtered monochrome camera works fast and can provide sufficient contrast for two-color applications.

 

If the application involves additional colors, a monochrome camera might not be enough. Instead, inspection parameters would define each fuse as a ratio between mean pixel values in the three different color planes. Consequently, applications that do not allow cooperation on either resolution or color require a three-chip color camera; the greater processing time becomes unavoidable.

 

The obvious choice of monochrome vs color cameras for machine-vision applications is not always clear. System designers must look at the different tradeoffs such as processing time, resolution, pass/fail-decision accuracy, power consumption, and, of course, cost—to make the best decision for each situation.

 

 

 

About the Author

Mark Allen is a frequent writer security systems, fiber cabling and network cabling. www.losangelescctv.com

800-203-9841

Email: myoung@sctproducts.com

SCT Product Sales is a structured wiring & cabling communications solutions provider servicing commercial and clients throughout Southern California. Our services include but are not limited to:

Cabling Infrastructure Design, Installation & Certification

Data Cabling, Voice Wiring, Audio/Video Cable, Fiber Optic Cabling

Audio/Video

Audio Distribution, Video Distribution & Conference Table Data Systems

Button Camera System Wired Color $270 Perfect For Body Worn Surveillance On-The-Go The Mini Button Camera will replace a button on your shirt and capture color video. The Mini Button Camera includes 5 additional buttons so that all buttons on your shirt match. Connect to a DVR for easy recording and playback. The Mini Button Camera even captures video in low light situations.Includes:All necessary power supplies and battery packs are included

Licence Plate Color Camera $159 1/3" Ccd Low-light Color Camera With Auto Iris, License Plate Mounting System

« Previous12345...209210Next »

Raz-ir Industrial Thermal Camera System

RAZ-iR industrial thermal camera also known as the RAZiR intelligent infrared camera which helps locate the damages, missing insulator, improper caulking incorrectly installed materials, gaps in construction, framing, stud work, mold and water damage and many more. With cameras as such we can get the value of what we pay for. The instrument being of high cost is restricted to governments and large corporation. Size is another noticeable factor; it is knowingly one of the smallest infrared cameras. Fitted with simple controls menu’s on screen which makes it easy to use.

A USB port is used to do the down loads to or from your PC. It can store images internally and there is no need to shell money for the memory cards and stuff. As it has a built in CCD camera it can take regular images apart from the stunning thermal images. Not only used for the human issues, but also for the animals issues such as performance enhancement, soft tissue stress, vascular studs, lameness, abscesses, and infection. You will never regret buying this device as the application is limited by your imaginations. AC power, additional batteries which operate for over 2 hrs continuously per battery, image storage and more are included when we buy the device. No more drilling and breaking to find damages. Both visual and thermal images along with temperature data are automatically saved to the internal memory.

To buy the device you need to know everything about the device. The range is 8-14?m LWIR Long Wave Infrared. with an amazing field of view 25°×19° - Point and shoot imaging and Thermal Sensitivity of 1/10 degree sensitivity. Uncooled FPA micro bolometer, with image correction and full auto imaging and instant image enhancement acts like the Detector Type. The visual built in digital video with 640*480 pixels, auto balance, auto gamma, and digital zoom has CMOS sensor. It has got LCD display to show the status of battery, indication of power and sound alarm just so that the alarm can go off the moment the battery is down and for the temperature rise/fall. It weighs 0.265Kg including the battery.

It has 8 GB internal digital image storage, with the USB to download from and to PC. The Digital Camera and Infrared Camera automatically take two images in one step which are automatically stored into the inbuilt storage system. There is also an image annotation in the field for which it records your voice. It also has a radiometric calibrated temperature measurement which is pixel perfect. It also has a built in laser target pointer.

About the Author

Author- 7bInfrared Products The company is into thermal Infrared products and night vision equipment like night vision goggle, night vision binocular.infrared camera.

Hidden Color CCD Mirror Camera $99.91 - SecurityMan hidden camera mirror- Color CCD camera surveillance kit- Excellent tool for discreet surveillance in convenience stores, buses, indoor ATMs and more- Do-it-yourself- Superb video image CCD color camera- Compact design mirror and easy install

B/W Camera 1/3 CCD 420Lines 0.05Lux, Video Auto Iris 12VDC $106.4 B/W Camera 1/3 CCD 420Lines 0.05Lux, Video Auto Iris 12VDC

« Previous12345...100101Next »

Purple clay pot into Returns Process inventory of the United States in recent years various kinds of "door incident"

Recently, the reoccurrence of the U.S. domestic brands exposure gate (purple gate), because of CCTV "Weekly Quality Report" program exposed the US's and other brands including Yixing purple sand pot does not become, but the added charge and other chemical raw materials color, as real to deceive the consumer. Midea (000,527, stock it) was a big consumer reliable brand, now has tripled again in the exposed many problems, so consumers are not only the crisis of confidence in its brand.

  Purple Door

May 24 CCTV "Weekly Quality Report" program, part of the market exposure of the brand of purple pot liner material production problems, including domestic brands of beauty. Yixing purple clay pot does not contain ingredients, while China and the U.S. in the production process can also be inserted into a "pink iron, manganese dioxide," and other chemical raw materials to add color to the purple sand pot handle so shoddy, consumer fraud. Upon exposure of this issue immediately attracted national media attention, has beauty has issued an apology and said this has evidence can Returns consumption, but some consumers think the Returns are not sincere and too harsh a statement.

Standard door

In 2007, the United States in the microwave by China Association for Standardization by "domestic microwave oven steamed functional requirements and test methods" Association standard machine, hit the "development of industry standards steamed," "patent steam Pa, the industry standard" in advertising and publicity made single page in the country's supermarkets and widely disseminated. As the United States in the microwave without authorization 'Association standards' definition interchange, face changing as the 'industry standard', suspected of false advertising, unfair competition is therefore subject to Hebei, Hunan, Hubei, Jiangsu, Shandong Provincial Industrial and Commercial Bureau of the five co-investigated.

  It , Jiangsu Business News, Information Times, democracy and the rule of law several times in 10 print media, Sina, Netease, Qianlong, Xinhua and other 10 information portals and websites of many local shows since 2005 and 2010 bombings in the United States has never been broken. Large refrigerator, Air conditioning, water heater, gas stove, small microwave ovens, rice cookers, water dispenser, induction cooker, cover almost all series of U.S. products. Blast injuries to consumers also uneven.

But even frequent quality problems, the U.S. side did not pay sufficient attention, but continued through a large number of public relations, information screen to cover up problems. According to media reports, in 2008 in Guangzhou, a beautiful induction cooker consumers use a meter when blown far, was seriously injured, residents of Shenzhen, home of a United States of refrigerators also use exploded during the fire, when the families of the victims said: "You find out that we are the victims." America's answer: "You are victims, but we do not know who was the victim." Although beauty after giving the injured some compensation, but from start to finish refused to recognize their own product quality.

Leaflets door

In 2009, Anhui Gree sales company official told reporters about the events Gree encounter malicious slander: "Since Oct. 2009, in Hubei, Anhui, Henan and other places, suddenly there are some students, the city's streets and home appliances shopping malls in front of passers and customer brochures, promotional materials are printed on quality Gree how bad the accident how much text and pictures. "he told reporters," content is completely fabricated. This thing is shocked and we are angry, and this brand is the image of serious damage. "

Buy back door

July 10, 2008, "Jiangsu Economic Daily" published an article entitled "America in the microwave comprehensive than Glanz, microwave oven industry into the duopoly era." This report is reproduced by the Phoenix Financial Network, the cause of the Galanz dissatisfaction, and conducted related investigations. In the end, Glanz sent a report to the National Letter major media, accusing the U.S. of instigating appliance stores through distributors, "air and space out" to create the illusion of unrealistically high market share in order to deceive consumers.
About the Author

I am an expert from Chinese Manufacturers, usually analyzes all kind of industries situation, such as rice cooker chinese , mini wine coolers.

14 CCTV Digital Color Monitor $152.94 14" CCTV Digital Color Monitor

« Previous123456Next »

Most popular graphics card connector- DVI cable

DVI cable is connected to digital media devices complying popular Digital Video Interface technology, also known as DVI. The popular video interface technology is best suited for high resolution LCD displays and modern computer video graphics cards. As DVI format is pretty popular with computer graphics card manufacturers, most modern computers have built-in DVI cable connectors. As an option for DVI connectivity, a VGA output port is also present in a standard computer.

Until getting replaced by HDMI interface technology, DVI cables were also used for digital data transfer for HDTV and high end plasma displays. Nowadays even other multimedia devices such as DVD players have built-in DVI output.
There are three DVI formats available for use with DVI connections- DVI-D, DVI-A and DVI-I. While there is pretty significant difference in video output quality obtained, consumers can choose to use any of them. DVI-D or True Digital Video format is used to directly connect source video to a compatible digital display port. High-resolution, better image is promised with DVI-D format than what is obtained with analog signal broadcasting technology. There is no ‘backlag’ observed in DVI-D technology like analog broadcast.

High resolution analog signals are best suitable for DVI-A cables. For connecting video source to analog display such as CRT monitor, DVI-A cable is used. DVI-A cable can also be connected to VGA multimedia device as both these formats carry similar signals. Technical tests have proven that some video quality loss is observed when converting digital signal to analog signal, which is why direct digital broadcasting is recommended.

A DVI-I uses superior technology that is capable of transmitting video signals in same form (digital-to-digital and analog-to-analog). DVI cable can be connected between an analog source and digital display with the help of VGA to DVI-D converter.

The simplest way of getting a single vga to component connection to work with two compatible devices is using serial to usb products.

About the Author

Startech USB to Parallel Interface Converter $12.77 Startech ICUSB1284 USB to Parallel Interface Converter

D-link Gigabit Interface Converter $437.33 D-link DEM-310GT Gigabit Interface Converter

LED Book Lamp

Ningbo HEYU Stationery & Promotion Co., Ltd. from professional manufacturer and exporter of promotion gifts, premiums and novelty items, such as flashlights, stationery and

daily use items. Product quality is our life and good business service is our god. Our good service win many customers, which

is guaranteed by high quality, competitive price, on-time delivery, and fast and effective communications. We will keep

moving and improving so as to become stronger day by day. Our goods have been exported to EU market, the USA, Japan, South

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

America, North America, Australia and Southeast Asia. We have good expertise on logo printing and big order manufacturing. We

work eagerly on your orders. OEM/ODM projects are warmly welcome too. We anticipate to cooperating with customers from all

over the world to create a joint prosperous success in the promotional advertising field. Welcome to HEYU Stationery &

Promotion Co., Ltd. HEYU Stationery & Promotion Co., Ltd.
Company products?
1) LED Booklite,super from  bright white light,mini shape ,with clip design,ear

holder design,good for promotion gifts
2) 2)We have more styles for customer's selection,pls kindly visit our website.You are welcome.
More………Inquire now

About the Author

1http://www.lighting-china-supplier.com/

Mini Flasher 2130 LED Flashlight $8.61 Pelican Mini Flasher 2130 LED Flashlight

Mini Termination Resistor w/ LED (Female) $18.26 Maretron Mini Termination Resistor w/ LED (Female)

Smart Remote Control Hi Level

It always comes to comfort level when we talk about remote controls. Yes because it's such equipment in nowadays times that is used daily and frequently big instruments seem worthless and useless without proper remote controls due to its handling.

We are so very aware of the revolutions in remote controls, which are now called as the smart remote controls. The extra features and techniques installed in smart remote controls make it more easy to use.
Nowadays many leading companies in this field are researching and making these remote controls better to use it in a better range.

There need to be some special features that makes it a smart remote control. it is very important to have those special features to improve the technology. It is like the remote control should be having easy and understandable features to use. Too Many buttons on the remote makes the use of remote confusing and intimidating. So there need to be only those buttons which come to use. Unnecessary of them should be avoided to make it a simple.

Other feature of a smart remote control is it should be comfortable in hand. Large remote controls are not even able to be handled and they fall down or just collapse. So obviously smart remote controls should have some level of comforts. Nowadays people prefer smart remote controls of size hardly of a matchbox and can be fit in our pockets even. They can be used easily and where ever possible comfortably.

Smart remote controls require some specific features to match with the present day competition and requirements. they should be level of technique in it. The range of the remote control should be wide to have an easy access while presentation or while easy resting. One should be able to operate it even from one corner of room to another. For fulfilling this purpose technologies like wireless radio frequency, infrared or Bluetooth is even used which makes the use of these remote much faster.

The much preferred and advanced is wireless radio frequency remote control. It gives all the basic and needed features in a smart remote control. Specific extra feature like WiFi is also added by some of the name fame companies for their marketing.

It is more important to handle this remote control properly and comfortably. These modern gadgets are delicate and serve a great purpose so they should be taken care of. It can be done by having a proper cover or placing it at a proper place. A remote can be made a smart remote by using it effectively and using its features in a effective manner so that it gives the maximum output in the best possible manner.

So these features make it a smart remote control and make it smart house that uses it!

About the Author

Nir Dotan is a writer and promoter of
Smart Remote Control services, and
Toronto Smart Remote Control Local as Virtual Smart Remote Control Services.

Home Theater Controller 100 $206.94 Home Theater Controller 100

All About Heart Shaped Sunglasses - Why They're Still Hot And Who's Wearing them!

Why the popularity of heart shaped sunglasses? Stylish and different can be used to descibe these sunglasses; maybe even, wacky. You have to be outgoing to wear these sunglasses.

Heart shaped sunglasses come out every year around February for Valentine's Day. Trotting around in these sunglasses is a wonderful way to celebrate the holiday and show your love for everyone!

Celebrities from different time periods have been seen wearing heart shaped sunglasses. These celebs love all colors and sizes. Recently, heart shaped sunglasses were featured on the runway in Europe during fashion week!

Marilyn Manson put them in his music video, Heart Shaped Glasses. These unique sunglasses even have a song named after them. Go Figure!

So, why heart shaped sunglasses? The non-conventional nature of this particular sunglasses' shape is what makes this type of sunglasses. Rectangle, oval, cirlcle, square, they've all been featured as sunglass shapes. Now, Triangle shaped sunglasses may be more flashy than heart shaped sunglasses; but, it's that heart shape of heart shaped sunglasses that makes them so one-of-a-kind.

Confidence, a fashion sense, and just being fun-at-heart is needed to wear these sunglasses! Style is being unique and sometimes strange. This need to be different (which these sunglasses provide) is at the heart of the timelessness of heart shaped sunglasses.

Need to be seen? Wearing these sunglasses are going to get you seen. Because they're so strange and one-of-a-kind, heart shaped sunglasses will go in/out of style, but people will continue to wear them. These timeless heart shaped sunglasses will always be popular for years and maybe decades to come! 

About the Author

Read more articles by Molly on the celebs seen wearing designer heart sunglasses, and the best place to purchase some designer sunglasses with heart frames.

80 inch Virtual Display Video Eyewear Glasses(SOAV933) $259.41 HighlightsConnect the sunglasses theater with your media player and enjoy the video now!SpecificationVirtual Display Size : 80" Resolution : 640x480Aspect Ratio : 16:9Color Depth : 24 Bit InputViewing Angles : 32 Digonal Video Input : Composite AVVideo Input Format : NTSC/PAL/SECAM anutomatic selection3D Video Format : Not support Audio : Double-channel stereoPower Supply : Built-in rechargeable batteryBattery Duration : 3-5 HoursNet Weight : 0.08kgColor Selections : Red & SilverAccessories : 1x AV switch wiring1x User Manual1x AC Adapter

50 inch Virtual Display Video Eyewear Glasses (SOAV230-1) $154.99 HighlightsConnect the sunglasses theater with your media player and enjoy the video now!SpecificationVirtual Display Size : 50" Resolution : 320x240 Aspect Ratio : 4:3Color Depth : 24 Bit InputViewing Angles : 28 Digonal Video Input : Composite AVVideo Input Format : NTSC/PAL/SECAM anutomatic selection3D Video Format : Not support Audio : Double-channel stereoPower Supply : Built-in rechargeable batteryBattery Duration : 3-5 HoursNet Weight : 0.08kgColor Selections : Blue,Silver,Red,YellowAccessories : 1x AV switch wiring1x User Manual1x AC Adapter

« Previous123Next »

VGA Extender: Worthwhile for Transmitting High Quality Images or Video over Long Distances

VGA video can be transmitted using Cat5/5e/6 cables from a computer to a display placed up to 950 feet away with the help of VGA extenders. These devices are sometimes called VGA Boosters, signal boosters or VGA baluns. These are used to increase the signal strength from a VGA port and allow it to be passed over a Cat5/5e/6 cable.

While there are a variety of video extenders available on the market today, such as DVI extender, HDMI extender, kvm extender, Component extender, the VGA extender is still the most commonly used. The VGA over Cat5 extender is a solution comprising of local and remote units. While the former connects to the video source, the latter is connected to the extended display. Both these units are designed to ensure a rapid signal delivery. Using Cat5 cables, these devices enable separation of digital displays and the hardware running them. Despite the large distances, these devices provide crisp and sharp images with a resolution up to 1900x1200 and are designed to deliver uncompromised video quality. With the help of extenders you can keep your PC in a secure location while the video is still accessible to your customers or employees.

VGA extenders are compatible with any operating system and any video source with a VGA connection, including PCs, DVD players, VHS, DVRs and so on. Some VGA to Cat5 extenders are also available with an audio option. In addition, several models come as VGA splitter extenders with 2, 4 or 8 ports and can be controlled with optional RS232 or infrared remote. Another version of this device is also made in a wireless format. This wireless vga extender connects to any projector with a VGA/HD15 port and shares it with multiple computer monitors as well.

These extenders work with simple plug and play installation and setup and require no additional software or drivers. Provide secure access, control, and management within your enterprise infrastructure when it is necessary. Due to these features, the VGA extenders are often used in Military, financial and medical arenas. They are also being used in schools, businesses, airports, restaurants, banks and shopping malls. These extender units provide the flexibility you need for a customized digital signage installation and are therefore an ideal solution for digital signage applications.

About the Author

Eris Dicosta is an expert writer who bring the relevant information on various theme through articles, press release and news world wide. Visit to know about kvm extender and wireless vga extender.

Lasertech 8 Channel 500GB DVR Security System $629.95 The LTS 8-Camera H.264 500GB DVR Security System makes advanced technologies simple. Realtime display/record professional grade equipment designed for the do-it-yourselfer. New H.264 technology will enable smoother video stream over the Internet and with the 500GB hard drive installed will provide extra long recording time. You can monitor your properties from anywhere over the Internet or 3G mobile phone (with Windows Media or Symbian). Other features like email alert, daylight saving time function and VGA output will provide extra security and convenience. Use the LTS 8-Camera Digital Video Recording Security System to reduce the risk of theft in your home or office; know what your care-taker is doing while you are away; or monitor your business effectively from anywhere. All necessary parts and accessories are included in one package: DVR unit; 8-420TVL Sony CCD infrared cameras; 8-60-foot BNC/Power Cables, splitter cable; remote control; batteries; camera stands; software; power adapter, pre-installed 500GB hard drive.

SVAT Smart Phone Compatible H.264 DVR Security System $449.99 SVAT - Observation/Security - 4 Channel Smart Phone Compatible H.264 DVR Security System with Coaching iMenu and 4 Indoor/Outdoor Hi-Res CCD Night Vision Surveillance Cameras The SVAT Smart Phone Compatible H.264 DVR Security System (CV502-4CH) is a complete DVR security system that has all the latest features yet is very easy to use. It has been specifically designed for do-it-yourself applications. This kit includes a four channel DVR with built-in hard drive, four indoor/outdoor night vision cameras, and all accessories needed to start monitoring your property immediately. Setup is fast and hassle-free because everything you need is included and an interactive coaching menu helps you along the way. Industry-leading features like smart phone access, H.264 compression, and convenient email alerts help you maximize the system and achieve a high level of protection. What is Included? 4CH H.264 DVR with 500GB HDD 4 Indoor/Outdoor Night Vision CCD Cameras 4 x 60ft BNC Video/Power Wires for Cameras IR Remote Control (batteries included) Power Adapter for DVR Four-to-One Port Power Supply for Cameras Power Supply for Cameras 10ft RJ-45 Ethernet Cable 12ft RCA to RCA (male) Wire 6 BNC Connectors Mounting Hardware 6ft VGA Cable 4 Window Warning Stickers Quick Start Guide Software & Manual CD 1 Year Warranty Access live footage directly from your iPhone or BlackBerry Smartphone H.264 video compression lets you record over a month of footage Let the coaching iMenu teach you about the DVRs settings and features Multiple viewing options allow you to connect up to two televisions and a VGA monitor Download the BROCHURE for full details including Specifications iPhone and BlackBerry Smartphone CompatibleAccess live video footage directly from any Smartphone, including the iPhone or BlackBerry Smartphones. Your DVR can also be set to email your hand-held whenever specific activity occurs, such as motion detection. Record Over a Month of FootageThe 500GB hard drive is optimized for 24/7 surveillance and uses cutting edge H.264 compression to record over a month of video. Set to record in real time, your footage will stream flawlessly during playback. Coaching iMenuHelpful information bubbles will pop up to assist you as you scroll through different settings. Learn what each setting means so that you can configure the system to suit your needs. Connect to a TV or Monitor EasilyVGA output and spot monitoring allow you to connect to up to two televisions and a computer monitor for viewing purposes. This gives you more options when viewing the activity captured by your cameras. View Video Online with No Service FeesView your DVR's live or recorded video footage on any Internet accessible computer with Internet Explorer. Know what is happening at your home or business wherever and whenever you want. Stay Notified with Email AlertsYou can be notified of events occurring in your monitoring location. Automatically send alerts to your email address whenever motion

« Previous12345Next »

H.264 Standalone Digital Video Recorder Series

1. 16 channels of video & audio input.

2. Recording at D1(704*576) with 480fps across all channel.

3. The latest algorithm H.264(MPEG 10) technology.

4. Philips DSP processor hardware.

5. User-friendly software and OSD interface.

6. Alarm under motion, video lost, video mask.

7. Networable through IE & Client software.

8. Up to 8pcs built-in HDD for long time recording

9. Pentaplex operation: record, playback,live view, network access and backup simultaneously.

* Operation System: RTOS

* Power supply: Standard ATX Power( AC: 200~240V, or 100~120V)

* Power consume: 300W

* Video: Compression H.264(MPEG4 Part 10)

* Resolution: 704X576, 352X288

* Output Interface: 1*BNC, 1*VGA

* Alarm: 8 Ch input/4ch output

* Network: 10/100M Ethernet, LAN, WAN

* P/T/Z: support

About the Author

16-CHANNL PERPH.264 NETWORK DVR NO HD $802.94 CHANNEL VISION 16-CHANNL PERPH.264 NETWORK DVR NO HD

« Previous1234Next »

China Sourcing Report - Adapters & Power Supplies

China Sourcing Report: Adapters & Power Supplies

Accounting for nearly half of global adapters and power supplies output, China makers are generally optimistic about the line's steady growth amid the economic slowdown, albeit at a slower rate. Expanding applications in mobile phones, PCs, industrial equipment, vehicles and consumer electronics are driving production. Europe and the US are main export destinations, although makers are boosting domestic sales to make up for the recent decline in exports. ( http://www.bharatbook.com/detail.asp?id=129866&rt=China-Sourcing-Report-Adapters-Power-Supplies.html )

To forestall market saturation, suppliers offer product upgrades and replacements. Small form factors, lightweight models, high efficiency and power density, and modularization are major advancements.

This report covers adapters and power supplies, including AC converters, AC/AC and AC/DC adapters, AC/DC switching adapters, desktop power supplies, DC-DC converters, universal AC/DC adapters, chargers and power distribution units. The power supplies section features high-voltage, LED, linear-power, medical, open-frame, precision and switching models.

What you'll get

* In-depth profiles of 28 major suppliers with a comprehensive look at their manufacturing and export capability, verified contact details, and more – this information is not available anywhere else
* 98 full-color images that depict popular adapter & power supply export models, complete with product descriptions, prices, minimum order requirements and delivery times
* Verified supplier contact details of an additional 28 exporters, including names, e-mails, telephone numbers and websites
* Supplier information in tabular format to help you compare companies at a glance
* Results of the custom-designed supplier survey, which forecasts industry trends for the next 12 months
* An extensive overview of the industry discussing the main challenges facing suppliers
* An in-depth examination of the supplier base highlighting key characteristics of different types of companies
* Details of the primary production centers
* An update of the latest trends in design, R&D, materials and components
* A review of the key factors that influence the price and quality of low-end, midrange and high-end products
* Comprehensive pricing tables featuring export price ranges

Who should read this report

• CEOs, Directors, Presidents, Business Owners
• Export/ Import Managers, Sourcing Representatives, Sourcing Engineers, Supply Chain Directors, Procurement Managers, Agents
• Sales Executives & Managers, Marketing Executives & Managers, International Buyers
• Business Consultants, Investment Managers
• Anyone who needs to understand the China supply market
 

To know more and to buy a copy of your report feel free to visit : http://www.bharatbook.com/detail.asp?id=129866&rt=China-Sourcing-Report-Adapters-Power-Supplies.html

Or

Contact us at :

Bharat Book Bureau
Tel: +91 22 27578668
Fax: +91 22 27579131
Email: info@bharatbook.com
Website: www.bharatbook.com
Blog: http://bharatbookresearch.blogspot.com
Follow us on twitter: http://twitter.com/3bbharatbook

About the Author

We are the leading information aggregator, facilitates and supports the business information needs. With over 115,000 reports, you can get instant access and insights on the studies in yo for market research , corporate / strategic planning by providing the latest information in the form of reports, journals, magazines and databases on varied industries like automotive, oil and gas, shipping, textiles, pharmaceuticals, energy, banking, finance, insurance, risk management, country intelligence, consumer & durable goods, chemical and more ur areas of interest. Contact us at +91 22 27578668 / 27579438 or email info@bharatbook.com or our website www.bharatbook.com

Replacement Power Supply AC Adapter for Toshiba PA3201U-1ACA $19.19 Replacement Power Supply AC Adapter for Toshiba PA3201U-1ACA

Startech.Com Power Supply Motherboard Adapter - 6 inch $3.93 the Adapter Cable Turns Your High-end Power Supply 24-pin Male Atx Connector Into The 20-pin Female Atx Connector Needed By Most Motherboards. This Reliable Power Adapter Is Backed By Our Lifetime Warranty. *Certifications & Standards: fcc [495606] UPC: 065030803304 UNSPC: 26121636 8.75L x 5W x 0.3H 0.15 LB 0 Cubes

« Previous12345...399400Next »

Making the Right Choice While Looking for Cctv Security Camera

There are normally six things to look at before Selecting a CCTV security systems;

1. Camera Selection

2. Recording Options

3. Detection

4. Time and Date Stamping

5. Cable and Connectors

6. Camera Protection

1.0 Camera Selection

1.1 Location

Is the camera to be located indoors or outdoors? If outdoors then you need to ensure that it is appropriate for the environmental conditions that are likely to be encountered such as rain, snow, sun-glare, low light etc. Outdoor CCTV camera security systems Outdoor cameras should either be classed as weather resistant or mounted in a special enclosure to provide protection. All CCTV outdoor cameras provided by Voltek are weather resistant and the cable entry points are sealed. The leads are of sufficient length to enable connections to be made inside the building.

1.2 Light Levels

Choosing the right camera based on the amount of available light is very important for an effective security system. An ordinary colour or even monochrome camera will not give very good pictures in low light conditions although the monochrome will perform better than an equivalent colour one. Solutions available for low light conditions can include:

* B&W cameras with built in IR illumination

* Colour Day / Night cameras

* Use of additional security lighting

* Use of a separate IR illuminator in conjunction with a monochrome camera. When using IR illumination ensure that the range of the illuminators is adequate for your needs.

Light levels are usually measured in lux and although full daylight can be around 10,000 lux, dusk can be as low as 1-10 lux, complete darkness is 0 lux and side street lighting can also be less than 1 lux in some cases. The closer a camera is rated to 0 lux the better its performance in low light levels.

1.3 Colour, Black and White or Day Night Cameras

B&W cameras generally provide better image quality than colour ones at lower light levels. They are also usually cheaper than colour ones of equivalent specification. Colour cameras require the availability of good lighting and will generally provide better recognition capability. Day Night cameras provide the best of both worlds in an external environment. They operate as colour cameras during the day (or in good light conditions) and automatically change to B&W when the light levels drop. All Voltek Day Night cameras are supplied with built-in Infra-red illuminators which enable the cameras to see in darkness.

1.4 Wired or Wireless

Wireless CCTV cameras are easier to install. There is no cabling to run from the camera to the receiver and they are ideal for temporary applications, rapid deployment or where running cable is not desirable. TheDay Night wireless Security CCTV cameras cameras do however require a power source and whilst most will have the capability to be powered by batteries these do not have a very long life - a matter of hours in some cases. Wherever possible the cameras should be powered by the mains. Typical range for wireless camera systems is 100m free-space but this can reduce significantly to around 20 meters in a typical household environment. In some cases there is also the potential for interference when using wireless systems.

1.5 Visible Deterrence or Covert / Discreet Monitoring

For visible deterrence the use of larger cameras housed in traditional enclosures are ideal. For covert or discreet applications Voltek supplies Discreet or Covert Cctv Security Cameras that are:

* Very small and can be installed in covert locations, or

* In enclosures designed to disguise the presence of a camera.

Many of the cameras manufactured by Voltek are both stylish and discreet in the design of their enclosures and this makes them very suitable for domestic applications.

1.6 Audio

If the ability to monitor or record sound is important then the camera needs to have a built-in microphone. This enables one-way audio monitoring. Some cameras such as the SuperCam2 from Voltek have a 2-way speech facility that enables you to speak with your visitor without answering the door.

1.7 Camera Viewing Quality

The resolution, size and type of camera sensor will influence the quality of the viewable image.

Resolution – This is expressed as the number of television lines (TVL) that the camera is capable of producing. The higher the TVL value the greater the resolution and hence the quality of the images. A typical entry-level camera will be around 300 TVL with higher resolution cameras having a value of 400+ TVL.

Size – A larger image sensor will give a better image definition than a smaller sensor. For example, a 1/3” image sensor will produce a better image than a 1/4 ” sensor.

Type – There are 2 types of image sensor. CMOS sensors are mass-produced and used in entry-level cameras to provide cost savings. CCD sensors are used in professional CCTV cameras and provide a higher quality image.

It is important to remember that the quality of the recorder also influences the quality of the CCTV footage. For example, if you use a high-resolution camera but a low-resolution recorder then the CCTV footage that is captured will still be of low resolution.

1.8 Single Camera or Multiple Camera Systems

Do you need to protect and view a single area or multiple areas? If you are likely to require protection of additional areas at a future date then consider buying a system that can be expanded as and when required. Voltek has a range of products that will allow you to connect and use up to 4, 8 or even 16 cameras. These include:

Switchers - These are units that enable a multi-camera system to switch between the various cameras. The switching can be done in a number of ways:

* Manually by the user

* Automatic sequential switching between cameras

* Upon detection of movement by a PIR camera.

Multiple Security CCTV cameras with Switchers The cameras are connected to the switcher and the output from the switcher can be viewed on a TV or it can be connected directly to the recording device such as the VCR or DVD recorder. CCTV switchers can typically allow connection of upto 4 or 8 cameras. The Spectrum control units from Voltek also have additional built-in functionality such as automatic video activation and time and date stamp. It is important to remember however that using a switcher will only allow you to view and record one camera at a time.

Standalone DVRs - Use of digital video recorders allows single or multi-camera systems to be viewed and / or recorded simultaneously.

Voltek supplies a range of 4, 8 and 16 channel DVRs allowing you to install a very comprehensive cctv system.

PC-Based Security Systems - These make use of a PCI card that is fitted inside your computer. They will allow connection of upto 4, 8 or 16 cameras and help turn your existing PC into a sophisticated cctv system.

2.0 Recording Options

If you want to be able to record your CCTV footage then the following factors need to be taken into account:

* Maximum length of recording time required

* Quality of recording

* Method of recording:

o Continuous

o Manual

o Event Led - i.e. when your system detects motion

* Recording Equipment

o Analogue

o Digital

* Capability for storage, retrieval and transfer of cctv footage

2.1 Domestic VCR

This is a simple and low cost option that can provide good quality footage recorded in real time. VCRs can be used to provide continuous recording of up-to 8 hours or event led recording when used in conjunction with a PIR camera and a VCR activator. When using PIR cameras to carry out event led recordings you need to consider the start-up time for the VCR. For example, if the recorder takes a few seconds to actually begin recording each time it receives the signal from the camera then the event may have elapsed before it is recorded (a person walking across the camera range may have passed the field of view before the image is captured on tape). In these situations a separate PIR detector could be used to trigger the recording and overcome this problem. The other thing to bear in mind is that you cannot set the VCR to record a TV channel whilst the camera input is selected.

2.2 Domestic DVD Recorder

These operate on a similar principle to the domestic VCR but offer the additional benefits of:

* Higher quality digital recording

* Increased storage capacity

* Improved search and retrieval capability

However, for disk only recorders the start-up time before recording actually commences is generally longer than a VCR. To overcome this it is recommended that recorders with a built-in hard drive are used

2.3 Standalone Digital Video Recorders

These are rapidly becoming the most popular method of recording CCTV footage. Essentially a DVR is a standalone piece of hardware that is designed exclusively for recording CCTV footage. It has a number ofDigital Security camera recorders clear advantages over the traditional analogue systems and these include:

* Storage Capacity – Days, weeks and even months of high resolution recording is possible through use of large capacity hard drives

* Consistent Quality Recording – No deterioration of image quality no matter how many you overwrite onto the recording device or how long you store the images for

* Viewing and Retrieval – Quick and easy access of footage due to digital format

* Transfer and Storage – The digital format allows ease of transfer and storage of footage. Transfer and storage capability is further enhanced by DVRs with built-in CD writers and USB ports.

* Remote Access – Many DVRs have the capability for remote access from anywhere in the world through use of a remote PC

* Multiplexed Recording – Capability to view and record multiple cameras simultaneously.

2.4 PCI Cards

These are digital video capture cards that can be fitted inside your existing PC to allow the connection of multiple CCTV cameras. The functionality and benefits of PCI cards is very similar to that of DVRs.

3.0 Detection

Even with systems that have a very long recording capacity, it is not always desirable to record continuously. Event-led recording is a more efficient means of capturing relevant footage and can be achieved by:

3.1 PIR Movement Detectors

Some cameras have PIR detectors built-in and for those that don’t it is possible to install a separate PIR as part of the overall system. In multiple camera systems with PIRs the footage that is being displayed on screen will automatically change to the area that has detected movement.

3.2 Video Motion Detection

This is used in digital CCTV systems and works by analysing the video signal from a camera. Changes in signal are recognised as movement and subsequently used to trigger recording if required. All Voltek digital systems allow users to mark one or more rectangular areas within the display screen and only when motion is detected within these areas will the system begin recording. Where possible, use of PIR movement detection is preferable rather than video motion detection, as it more reliable particularly for external use.

4.0 Time and Date Stamping

This feature superimposes the time and date onto your CCTV footage. Having this feature can be really useful to identify when an event occurred and was recorded, particularly if the footage is to be used for evidence purposes. For domestic systems Voltek offers a separate time and date generator that can be added to your system. The Spectrum control CCTV securyty cameras has this facility already built-in. The facility is also integral to all the Voltek range of digital CCTV systems.

5.0 Cable and Connectors

Security camera wires connectors Cameras can be connected in a variety of ways. All our domestic cameras are supplied with 20m of cable and scart and / or phono plugs to connect directly into your TV, VCR or DVD recorder. All our professional cameras are supplied with 20m of cable and BNC connectors that will plug into our range of digital recorders. The Voltek camera leads can be extended upto 100m in total by the use of appropriate extension leads. Co-axial cable with a local power supply to the camera can enable the camera to be sited upto 250m away from the monitor or recording device. Detailed information on connectors and cable for each of the Voltek cameras is available on the relevant product page on the website.

6.0 Camera Protection

If your camera is likely to be a target for vandals then consider protecting it with one of Voltel wire cages is a Security camera wire cages

must. This not only saves your Security cameras from Vandalas but protects any evidences collected during the vandal acts.

We at For your Home along with Voltek really hope the following guide will help you in selecting the perfect security cameras for Your Homes and Gardens

About the Author

We at For your Home are well experienced in helping you make better homes and gardens. You are always welcome to visit our better home and garden online store at http://www.foryourhome.co.uk and our complete home security CCTV cameras systems at http://www.foryourhome.co.uk/home-security/c/1115.html

Q-see QSDT4PCRC DVR Video Capturing Device - PCI $116.15 Q-see QSDT4PCRC DVR Video Capturing Device - PCI

Qsdt4Pcrc Dvr Video Capturing Device - Pci $118.47 turn Your Desktop Pc Into Your Own Surveillance System With This Q-see Pc Based Security Solution. The Qsdt4pcrc Pci Dvr Card Uses Software H.264 Compression For Maximum Storage With Little Loss Of Quality. This Dvr Card Stores Video Directly On Your Pc Hard Drive, Records Real-time Video For Accurate Monitoring, And Offers Multiple Recording Options Including Motion Detection. *Brand Name: Q-see [BY8743] UPC: 645439228719 UNSPC: 43201500 12L x 12W x 9H 2 LB

« Previous12345...1112Next »

VGA to DVI-D Coverter Converts Analog Video Signals to Digital Video Signals

Another item available in the category of video converters is the VGA to DVI-D Converter. This device is capable of connecting your VGA video source to digital DVI monitors or projectors. By converting the hosts’ analog VGA signal to a DVI-D signal, it allows the digital display device to be connected seamlessly. Supporting video resolutions up to 1600x1200, this conversion device is compatible with single link DVI, UXGA, SXGA, XGA, SVGA and VGA.

Its key features include easy installation, requirement of no special tools or software for immediate operation and output picture adjustment of brightness, contrast, color, RGB level and H-V position. By converting VGA to DVI-D signals, it has enabled users to connect computers equipped with HD-15 video connections, to the new DVI (digital visual interface) video display format. Working methodology follows simple plug and play functionalities. By connecting the VGA cable to the input side of the converter and then connecting the DVI monitor or projector to the DVI output, signal conversion between analog to digital is made possible. It automatically detects the input resolution while the output resolution and refresh rate can be selected through the On Screen Display menu and front panel push buttons.

The VGA to DVI-D Converter box has a VGA 15 Pin HD female input connector along with a DVI-D Single Link or VGA 15 Pin HD female output connector. The other type of Video Converter mostly used is DVI-D to VGA Converter. It also has an in built auto detect feature which helps in detecting the VGA resolution coming from the PC to the DVI-D video monitor. Regulatory approvals from FCC and CE have also been given to this device. It is designed in a manner so that it has two outputs, one to connect a DVI-D monitor and one to connector a VGA monitor to a computer with VGA output. An ideal product for applications where traditional analog video graphic cards need to be connected to DVI compliant digital monitors, it ensures that the connection between the VGA to DVI-D output works.

About the Author

Jennifer Luec is an acknowledged writer in this industry.
To know more about different type of Video Converters, You should Visit, USB to DVI Converter and HDMI VGA Converter.

JAZZ VGA DIGITAL VIDEO CAMERA BLACK $29.9 JAZZ VGA DIGITAL VIDEO CAMERA BLACK

JAZZ VGA DIGITAL VIDEO CAMERA RED $33.76 JAZZ VGA DIGITAL VIDEO CAMERA RED

« Previous12345...2829Next »

Category 7 cable

I want to introduct something about LCD Cables and Micro Computer Cable. Brand Name: MEC Computer Cables Main Export Markets: Eastern Europe North America Mid East/Africa Central/South America Asia Western Europe Australasia LCD Cables and Micro Computer Cable Micro Cable, LCM Cable LCD Cables and Micro Computer Cable, Wire Harness for DSC, PDA, E-Book, Notebook (OEM/ODM) View basket Chat with supplier using: Key Specifications/Special Features: Mini-coaxial LCM cable #36 to #40 LCD-panel side: 0.5mm to 1.25mm pitch (for Hirose DF19, JAE 1.25mm pitch) for FPC connector Motherboard side: 0.5mm pitch, 20- to 50-pin connector Impedance: 45 to 50 ohms Attenuation: at 10MHz nominal, 0.53dBm Cross talk: 1MHz to 100MHz: >/= 60dB 100MHz to 400MHz: >/= 50dB Durable, precise impedance high-frequency transmission minimal signal loss ProductsMore

Category 7 cable
Category 7 cable (Cat 7), (ISO/IEC 11801:2002 category 7/class F), is a cable standard for Ethernet and other interconnect technologies that can be made to be backwards compatible with traditional Cat 5 and Cat 6 Ethernet cable. Cat 7 features even more strict specifications for crosstalk and system noise than Cat 6. To achieve this, shielding has been added for individual wire pairs and the cable as a whole.
The Cat 7 cable standard has been created to allow 10 gigabit Ethernet over 100m of copper cabling (also, 10-Gbit/s Ethernet now is typically run on Cat 6a). The cable contains four twisted copper wire pairs, just like the earlier standards. Cat 7 can be terminated either with 8P8C compatible GG45 electrical connectors which incorporate the 8P8C standard or with TERA connectors. When combined with GG45 or TERA connectors, Cat 7 cable is rated for transmission frequencies of up to 600MHz.
Category 7a
Category 7a (or Augmented Category 7) operates at frequencies up to 1000 MHz, suitable for multiple applications in a single cable including 40 Gigabit Ethernet, 100 Gigabit Ethernet, and CATV (862 MHz). Simulation results have shown that 40 Gigabit Ethernet is possible at 50 meters and 100 Gigabit Ethernet is possible at 15 meters. Mohsen Kavehrad and researchers at Pennsylvania State University believe that either 32 nm or 22 nm circuits will allow for 100 Gigabit Ethernet at 100 meters.
See also
Category 5 cable
Category 6 cable
References
^ a b "DesignCon 2009: 40/100 Gbps Transmission Over Copper". techonline. 2009-02-01. http://www.techonline.com/learning/techpaper/213001693. Retrieved on 2009-02-28.
^ "Patch cords with integrated baluns enable multi- HD video support". Cabling Installation & Maintenance. 2008-04-30. http://cim.pennnet.com/display_article/327273/27/NEWS/none/TOPST/1/Patch-cords-with-integrated-baluns-enable-multi--HD-video-support/. Retrieved on 2009-02-28.
^ "New Siemon Patch Cords with Integrated Baluns Provide Single-Outlet Support of Multiple High-Definition Video Signals". Siemon. 2008-04-28. http://www.siemon.com/us/company/press_releases/08-04-28-tera-balun.asp. Retrieved on 2009-02-28.
^ News release
^ "UPDATE: Cat-7 copper theorized to transmit 100 Gbps in excess of 100 meters using future modems". TGDaily. 2007-11-14. http://www.tgdaily.com/content/view/34854/113/. Retrieved on 2009-02-28.
De-Mystifying Cabling Specifications From 5e to 7A

v?d?eUnshielded and shielded twisted pair cabling standards
Cat 1: Currently unrecognized by TIA/EIA. Previously used for POTS telephone communications, ISDN and doorbell wiring.
Cat 2: Currently unrecognized by TIA/EIA. Previously was frequently used on 4 Mbit/s token ring networks.
Cat 3: Currently defined in TIA/EIA-568-B, used for data networks using frequencies up to 16 MHz. Historically popular for 10 Mbit/s Ethernet networks.
Cat 4: Currently unrecognized by TIA/EIA. Provided performance of up to 20 MHz, and was frequently used on 16 Mbit/s token ring networks.
Cat 5: Currently unrecognized by TIA/EIA. Provided performance of up to 100 MHz, and was frequently used on 100 Mbit/s Ethernet networks. May be unsuitable for 1000BASE-T gigabit ethernet.
Cat 5e: Currently defined in TIA/EIA-568-B. Provides performance of up to 100 MHz, and is frequently used for both 100 Mbit/s and Gigabit Ethernet networks.
Cat 6: Currently defined in TIA/EIA-568-B. Provides performance of up to 250 MHz, more than double category 5 and 5e.
Cat 6a: Currently defined in ANSI/TIA/EIA-568-B.2-10. Provides performance of up to 500 MHz, double that of category 6. Suitable for 10GBase-T.
Cat 7: An informal name applied to ISO/IEC 11801 Class F cabling. This standard specifies four individually-shielded pairs (STP) inside an overall shield. Provides performance of up to 600 MHz.
Cat 7a: An informal name applied to Amendment 1 of ISO/IEC 11801 Class F cabling. Provides performance of up to 1000 MHz. Suitable for 40 Gigabit Ethernet.
See also: TIA/EIA-568-B ? Ethernet ? 8P8C ? Ethernet crossover cable ? Twisted pair

Categories: Ethernet | Networking hardware | Signal cables | Telecommunications stubs(and so on) To get More information , you can visit some products about bore hole cable, Electrical Installation Cable, . The LCD Cables and Micro Computer Cable products should be show more here!

About the Author

himfr can provide you most popular hot products from china!

Cables To Go BNC to RJ-45 Video Balun - Network Connector - BNC, RJ-45 $18.89 Cables To Go BNC to RJ-45 Video Balun - Network Connector - BNC, RJ-45

« Previous123Next »

Standardize This! 10 Technology Messes That Need Fixing

Enough with bickering cell phone technologies, messaging systems that won't talk, incompatible file formats, and TV remotes that spread like kudzu across your coffee table. We've been dealing with some of these problems for more than a decade, and it's time for things to improve.

Here are ten technologies that cry out for standardization--tomorrow if possible, though yesterday would be even better.

What tech do you want to see standardized? Post your thoughts in the comments below.

1. One World, One Plug

Over the years I've used hundreds of chargers, plugs, AC/DC adapters, power bricks, and wall warts for my laptops, cell phones, MP3 players, digital cameras, GPS units, and other gadgets. No two were interchangeable. It's not merely stupid, it's a landfill nightmare.

USB-based AC adapters are a step forward, but you still have to deal with six kinds of USB connectors. If your camera uses a Mini-A USB charger and your smart phone is Micro-B, you're just as stranded as if they used completely unrelated chargers. You may be able to buy a "universal" charger that lets you plug in a laptop and other devices, but only if the vendor supplies adapters designed for your particular gadgets. What a pain.

What the world needs now isn't love sweet love--it's a power adapter that works with every portable device. Last year, most of the big handset makers agreed to standardize on Micro-USB chargers by 2012. (The most prominent exception? Apple, of course.) For the past three years, groups like Green Plug have been lobbying consumer electronics companies to adopt a single plug standard, but so far they have little to show for their efforts. You can add your voice to the chorus at the I Want My Green Plug site.

2. A Real Universal Remote

Like everyone I know, I have a basket crowded with remotes (including several not-so-universal "universal" ones) on my coffee table. All of them do more or less the same thing, but each one is slightly different. Does every TV, DVD, DVR, set-top box, and stereo manufacturer really need to redesign the wheel?

We need one remote that controls everything and doesn't require a 45-minute video tutorial, tedious trial-and-error experimentation, memory-hogging software, constant updating, or the services of a Home A/V specialist. That, or maybe Project Natal-like gesture recognition, so we can just wave our hands to control our A/V gear. Even better: brain implants. That way my wife and I can fight over what to watch without having to speak to each other.

3. Virtual Instruments That Rock Around the Clock

When I'm down for a virtual gig--whether I'm due to play Rock Band on the Xbox 360 or Guitar Hero III on the PS3--I want to be able to strap on my ax and go. Sadly, only a handful of guitars and drum kits work across multiple rhythm-game titles on a single console system (see this confusing chart for details--or this one, or this one). The good news? The situation is steadily improving, as Harmonix and Activision belatedly recognize the folly of playing battle of the band instruments.

Looking for virtual instruments that span not only the games but all the consoles? Shine on, you crazy diamond. You might as well wait for the Beatles to reunite.

4. A Single Data-File Format

Cross-platform compatibility? Feh. Mac and Windows PCs have coexisted for a quarter of a century, and yet people still have problems moving files between them--and that's without the commplications presented by Linux and other computing platforms. Want to move data between different types of applications or open a file stored in an older format? You'll have better luck printing it out and retyping it.

Most of the 1000+ file formats that now exist are native to a single application. We need a single editable format that all platforms can display accurately (and with full formatting) and that the user can move easily between applications. No tedious file conversions, no mystery fonts, no deciding which arcane ASCII character set to use. Just save it, send it, and open it--and no surprises inside the box.

For the past four years, the OpenDocument Format Alliance has been promoting an XML-based format that makes Office Suite documents accessible across platforms and applications. ODF enjoys endorsements from international governments and support in products like Google Docs and Open Office. But until Microsoft beefs up its support for ODF, that movement isn't going anywhere.

5. Smarter Smartphone Batteries (and Keyboards)

If your flashlight runs out of juice, you can pop down to the local Kwik-E-Mart and get some C batteries. If your TV remote conks out, Apu will happily sell you some AAs. But when your cell phone battery expires, you have to contact your handset manufacturer or carrier to get a replacement. Worse, you can't swap batteries between different handsets. Are individual cell phone models really so special that each requires its own battery technology?

The IEEE's Cell Phone Battery Working Group is set to hold its first meeting this month, primarily to improve battery life and to devise standardized packaging for smartphones, but maybe they'll seize the opportunity to address interoperability, too. Unfortunayely, considering the pace at which the IEEE usually ratifies standards, cell phone brain implants are likely to come sooner than a single-battery standard.

Cheap laptop ac adapters:

Laptop AC Adapter for dell inspiron 6000 Dell Latitude D600 Laptop AC Adapter

Laptop AC Adapter for HP Pavilion dv6000

About the Author

Battery-company.com.au is a wholesaler who sells replacement laptop batteries, TOSHIBA Satellite A100 AC Adapter, digital camera batteries, camcorder batteries, power tool batteries and battery chrgers.  All products offered in battery-company.com.au are under the warranty: 1 year warranty, 30 days money back. http://www.battery-company.com.au

Computer to DVR adapter box $71.32 - SecurityMan USB internet camera and DVR converter box- Cost-effective solution for video recording and remote monitoring over the internet- Converts wired/wireless camera(s) into internet camera(s)(not included)- Turns your PC into a DVR (Digital Video

Archos DVR Snap on - digital AV player connection adapter $59.99 MULTIMEDIA PLAYER, DVR SNAP ON,

We did not find any matches for your request.