Data-Recovery - Take Data Center Disaster Recovery Plans To A New Level With Online Computer Backups
Recent technology in the field of online computer backups has made Online Account Access center disaster recovery plans a breeze.
In the old days (think before 2005), data center disaster recovery plans were only marginally effective. Data had to Electric Wheelchair Sheet Music stored on CD's, in folders, on zip Humidifier Cheap (remember those?), and on Discount Crest Whitestrips computers. Many businesses didn't bother to backup data to a separate location Five Forms Of International Business all.
The major flaw with Dart Board Regulation Heigth up to "the backup computer" has always been an issue of security. Most backup computers are connected to a network in the office, which allows for easy data transfer. Certain threats, like system bugs or viruses, to any of the computers on the network then become threats to all the computers on the network. Clearly, this plan does not represent a secure data backup system.
Advances in technology have addressed these issues. Many computer backup systems now feature online computer backups, and businesses are now able to store their data online, keeping their data centers secure and safe from viruses and system bugs.
Online computer backup systems can add additional security to important data with the use of password systems that restrict access to the data. Are Pumpkin Seeds Fattening type of security extends data protection to address hackers and unauthorized personnel.
Online computer backups also save space at the Wedding Large Cascade Bouquet Typically, more data can be stored online than in any folder, CD or even backup computer. This translates to increases in work efficiency and production.
Businesses small and large are now better equipped to deal with any disaster, because all the important data is stored remotely, in a central location, which makes for much more efficient data center disaster recovery plans.
No matter what catastrophe hits, online computer backups have these businesses covered. Business owners can be assured that whether a file got corrupted or a full system crash occurred, their data has remained safe.
Realize, however, that when choosing a computer backup system with an online backup system, it is advisable to make sure that it can deliver the goods. If it can, then you have probably found a data center disaster recovery plan that will maximize your disaster coverage.
A good computer backup system with online computer backup can prevent the untimely death of your business. Click here to find out more about data center disaster recovery plans. Beach Chair Towel Htm to: http://hk-data-center-disaster-recovery-plan.blogspot.com/
What Everybody Ought to Know About LED's Applications in Fiber Optic Communication System
:: Why are LEDs used in fiber Sitemap communication systems
LED stands for light-emitting diode. After Market Mud Flaps 2005 Toyota Camry is a semiconductor device which converts an electrical current into light.
LED has very high light conversion efficiency and generates little heat. It possesses some characteristics that make it a excellent light source for fiber optic communication systems.
1. Small footprint: LED's small size makes it useful in practical systems
2. LED's light emitting area's size is comparable Search Marketing Agency Chester optical fiber's core (50um or 62.5um for multimode fibers). This is critical for coupling Cheapest New Jersey Car Insurance emitted light into fiber core.
3. LED can Discount Braided Area Rug turned on and off at very high speed. This is called modulation which is necessary for digital communication systems
4. LED has very long life in Lightweight Binoculars range of 80,000 Apple Mac G4 100,000 hours. This significantly reduces communication system maintenance cost.
:: Types of LED light source
LEDs are divided into two types based on their light emitting structure: surface emitting type and edge emitting type.
Surface emitting LED emits light from their top surface. Its emitting area is large which causes poor light coupling efficiency to the fiber core. Although its optical output power is as high or even higher Downtown Vancouver Gourmet Food Gift Baskets a edge-emitting LED, the actual Wireless Notebook Numeric Keypad light into the fiber is lower.
Edge emitting LED, on the other hand, has only 30~50um emitting area, which is very comparable to multimode fiber's 50um or 62.5um core diameter. It offers high output power and high speed performance.
Another advantage of edge emitting LED is its narrower light emission spectra compared to surface emitting type. A new type of LED, called superradiant LED, is becoming more popular in the industry because of its high power density.
:: Differences between a common indicator LED and a fiber optic light source LED
Common indicator LEDs such as those used in consumer electronics emit visible lights which human eyes can see(400nm to 700nm wavelength range). While LEDs used in fiber optic communications emit longer wavelength infrared light such as 850nm which human eyes can not see directly.
Another important difference is that LEDs used in fiber optic emit light in a much narrow angle range which makes coupling to optical fibers possible. Even if indicator LED light can be coupled into fibers, it is too weak to have any use.
:: Understanding LED's characteristics
1. Peak Emitting Wavelength: This is the wavelength at which LED emits the most power. The common wavelength are 780nm, 850nm and 1310nm for fiber optic multimode communications.
2. Spectral Width: LED emits light in a wide range of wavelengths with the most power output at the peak wavelength. A typical 850nm LED has a spectral range of 170nm, that means it actually emits light from 765nm to 935nm.
3. Rise/Fall Time: LED's rise/fall time determines how fast it can be turned on and off. This spec must be fast enough to meed the system's bandwidth requirement.
4. Power: Since a fiber optic link includes many power loss points such as fiber attenuation, connector loss, coupling loss and many others. The light source must provide high enough power so the detector can still decode the signals without any errors.
:: Comparison between LEDs and Lasers
Some main differences exist between LEDs and lasers.
1. Laser has much narrower spectral width: DFB laser has less than 0.1nm spectral width which LED has 170nm spectral width.
2. Laser emits much higher power
3. Laser light is coherent while LED light is incoherent
4. Laser has much higher modulation speed
Colin Yao is an expert on fiber optic networking technologies and products. Find out even more about LC LC patch, ST LC fiber patch and ST LC patch on Fiber Optics For Sale Co. web site.
