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Sunday, March 30, 2014

Fiber Optic Patch Panel



Fiber optic patch panels are also known as fiber distribution panel known . Patch panel function to terminate the fiber optic cable and the access to the individual fibers of the cable for the cross-connection . Is

Fiber patch panel can use fiber patch cable cross-connect , connect the fiber optic communication equipment or test the individual fibers in the fiber cable.

Contains A fiberglass Patchpanelin usually consists of two parts , the tray fiber adapter (Schott vessels) and the tray for FO splicing cassettes and excess fiber optic cable contains together .

If you want a more orderly cable management , you can also use a fiber patch cable management tray Use to store tidy and manage excessive fiber patch cable lengths.

Optical fibers from workstations or from other wiring closets terminate in termination boxes. The final boxes provide a patch point for a small number of connections , but large facilities will place a separate patch that serves all optical fiber cables entering and exiting . Read More

Optical Fiber Amplifiers



However, this is an inconvenient and expensive process and so it is replaced by the new optical fiber amplifier technology.

An optical fiber amplifier is an all-optical device . It is not to convert the incoming optical signal to electronic signal . Basically, you can call it an in-line laser . And an optical fiber amplifier simultaneously amplify dozens of optical channels , since they do not need to convert into electronic signals for each channel separately.

What are optical fiber amplifiers , and how do they work?

An optical fiber amplifier is a portion of an optical fiber doped with a rare earth element such as erbium or praseodymium .

The atoms of erbium or praseodymium , by high-power light ( pump laser ) are pumped into the excited state. But they are not stable in the excited state . If the optical signals are amplified by, even though the fiber , they stimulate the excited erbium atoms. The erbium atoms are excited by the high level of performance state to low power levels to jump stable state and release energy in the form of photons emitted light at the same time . The emitted photon has the same phase and wavelength of the optical input signal, thereby to amplify the optical signal.

This is a very convenient form of the amplifier for an optical fiber communication system , because an in-line amplifier , thus eliminating the need to do the optical-electrical and electrical-optical conversion process.

The pump laser wavelength and the relevant optical signal wavelengths are important parameters for the operation of fiber amplifiers . These wavelengths depend on the type of the rare - earth element is doped in the fiber , and also on the composition of the glass in the fiber.

Another important concept in the understanding of fiber amplifiers is the "profit" . Measuring the increase in gain per unit length of the fiber. Gain depends on both the materials and the operating conditions , and it varies with the wavelength for all materials.

For low input power , the output power is proportional to the reinforcement times the length of the fiber. Thus , P ( outlet) = P ( input) x gain x length

For high input powers , the gain saturation effect comes into play. To increase the input power produces less and less power , which essentially means , the amplifier of the power it needs to run to generate more power.

Saturday, March 22, 2014

Dealing With An iPad Dipped In Water



· Do not touch the power button

 

It is obvious that water and electricity are great enemies. The worst thing you can do for your iPad when it falls in water is drying with a cloth or anything and try to turn it on. At the moment the power button, it will make things worse touched. In any event, do not change the iPad . Even if you think that the drying of all parts, including the connection port with a towel will ease things, you are still wrong . Note that while the phone is at room temperature, it will take several days for the water to evaporate on the iPad .

 

· Use gel packs

 

Scientific facts have it that the heat is a good way to water evaporation. However, for your case you have to get away from heat sources, as much as you can . Blow dryers and anything else you can use to heat your iPad are not looking for solutions. Produce heat , which melts the solder on your iPad causing more damages. Therefore, two alternatives include using silica gel packages and room temperature. The good thing is that gel packs can be found in small sachets. Once you get the gel packs , get a container to put them inside. Continue putting your iPad inside the container, and expect good results.

Choosing USB Flash Drives



 

16 GB - high quality photographs have plenty of storage space and the need for a highly capable device. Documents with graphs, tables or data are also organized similar insurance you need more space. An individual music file is quite small, but an entire album may soon use up storage capacity. A 16 GB is perfect for storing MP3 files, graphics, photos, etc.

 

32 GB - large capacity files as audio and video clips are memory intensive. If you hope to save and store complex graphics, images or videos, can help to use a flash drive with at least 32 GB of storage space.

 

File transfer speeds

 

Another thing to consider with flash drives is speed file transfer . This is related to the speed of the device is able to write data to the device. Units may have different data to retrieve and write speeds. Transfer speeds are classified by megabyte per second. A high rating is definitely, the more reliable option.

BIOS-Embedded Windows 8 Product Key



Windows 8 has become a very popular operating system among Windows users. However, Microsoft has made things a little different for its users. Previously, the product key on a computer operating system had a pre - installed is printed on a sticker. For laptops, the label is placed on the bottom of the laptop near the battery compartment. On desktops, this tag could be found on the side of the computer. However, Microsoft has decided to do things a bit differently by incorporating the product key of the new Windows 8 operating system in the computer BIOS . This movement affects the user in a number of ways as there are various advantages and disadvantages.

 

Advantages of embedded product key BIOS

 

The first advantage that the user will get from this is that they do not have to look for the product key every time you need to reinstall Windows. In the past, when you reinstall the operating system, the user had to find the original key and input before proceeding with the installation. This can sometimes be difficult for some users. The Certificate of Authentication label could perform and the digits become difficult to read. In fact , the digits were sometimes too small to read . However, since the key is now integrated in the BIOS , the operating system will recognize it immediately and continue the installation without requesting this information for activation .

 

Users can be sure that they are getting genuine Windows products . In the past, people were selling pirated OS and use a generic product key . However, after a while , the user will receive a notification that your product is not original. This means that they would not get support or updates for Microsoft . However, if set in the BIOS , they will not need to obtain a generic product key from a trusted source . Read More

Wednesday, March 5, 2014

VoIP - Between On-Premise and Hosted Systems..


When it comes to VoIP , companies generally have two options : throw your own system or leave it to the experts. In premise facility offers greater control and flexibility, but require enormous Capital expenditure front, and expert staff . Hosted VoIP companies alleviates the hassle of maintaining the network and provides an extended feature of having a low price, but the customization options may be few if your business needs are very different from the average.

However there is also a third option called managed on-site VoIP offers a compromise between the other two . With VoIP managed , the service provider provides all equipment, devices , software and expertise to implement a VoIP network (similar to a hosted system ), except that all the hardware is located on the customer premises (similar to facilities in place ) .

Organizations that want to eliminate the high costs of buying expensive equipment , but still require extensive configuration options generally choose managed VoIP. Service packs typically include network monitoring, hardware and software installation , updates and changes , as well as service management . The main difference with hosted systems is that the equipment is on site offering some of the benefits :Read More