Archive for the ‘UPS’ Category

A helpful insight into Surge Protectors.

Thursday, April 29th, 2010

It’s that time of year again when thunderstorms and lightning strikes are frequent.  This post is about surge protectors and ways on how to try and protect your electrical components from surges of power and how they don’t always work for lightning strikes.

Surge protectors come in all different shapes and sizes, but some don’t function very well as surge protectors at all they are more like an extension cord with a power strip attached to it.  I’ll delve into more detail on how to make sure you find a good surge protector later.

A surge protector works by taking any “surge” of voltage over a specified voltage that lasts more than 3 nanoseconds, which are billionths of a second, and dissipating it through different methods.  One of these methods is to send that surge back to the ground line through different components inside the surge protector and then let the ground line carry it out from there.  Another method is storing the extra energy into a series of circuits that let the energy back into the main line slowly so as not to disrupt the ground line and maybe cause more problems.  Lastly there is usually a fuse installed in the main line as well as a kind of last line of defense, if the fuse blows than nothing will work.

Surges can from just about anywhere or anything that can cause a surge in electricity in the power lines.  The most people are familiar with is lightning strikes, although these are not the most common forms of power surges.  Lightning strikes nearby on power lines are the leading cause to burnt out electrical components including computer hardware.  The problem with these lightning strike surges are that they cause such a huge surge of voltage that it overpowers just about all the surge protectors made.  The best guarantee to protect yourself from this surge is the unplug your computer during a thunderstorm/lightning strike.

What to look for in a good surge protector:

  • Price: As a rule of thumb the higher the price the better the quality.
  • Underwriters Laboratories (UL): Only buy surge protectors with a UL listed sticker on it and make sure it says Transient Voltage Surge Suppressor.
  • Clamping Voltage: This is the voltage at which the surge protector will dissipate the surge.  The lower the number the better. EX: 400 V is good.
  • Energy absorption/dissipation: This is given in Joules and it states how much energy it can absorb before it fails completely.  The higher the number the better. EX: 200 to 400 Joules is good.  600 and higher is Excellent.
  • Response Time: This is how fast the surge protector responds to the surge.  Look for one under 1 nanosecond

With these facts in mind you should be able to find yourself a good surge protector from any store that sells them.  Some surge protectors come with a guarantee that they will protect your electronic equipment from burning out or they will replace them, but these are usually more expensive.  If you have any questions about where to buy a good surge protector or if you already have a good one, contact us at Computer Troubleshooters.  Also for more information and how the nitty gritty details of a surge portector works go to this website:

http://electronics.howstuffworks.com/surge-protector.htm

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The Importance of Battery Backups

Tuesday, August 11th, 2009

The Importance Of Battery Backups
Small businesses face a variety of technology threats.  From power-failure induced data loss to electrical spikes
that damage computers and other sensitive office equipment, small businesses battle numerous challenges.
Statistics reveal there’s a high likelihood an organization will go out of business immediately if data is lost. The
odds of a business failing within two years, when critical business data is lost, increase to 90%. Further, recovering
data from damaged systems is expensive and time consuming.

Fortunately, battery backup devices—also known as uninterruptible power supplies (UPS)—provide protection
from several of these risks, including:

1. Data corruption or loss resulting from inadvertent power outages.

2. Damage to expensive computer equipment from brownouts, surges and spikes.

3. Network-connected system and peripheral surge related damage.

UPSes also provide an opportunity for potential energy savings.

As you assess your business’ technology needs and requirements, we hope you find this report on the
importance of battery backups—and the role these devices play in preserving data and empowering business
continuity—valuable to your organization. Read on to learn how appropriate battery backups help
empower business continuity.

Data loss is perhaps the greatest small business technology threat. When computers are abruptly turned
off, either due to inadvertent power outages, thunderstorms, electrical circuit failure, brownouts, spikes
or myriad other issues, the potential for data loss and corruption arises.
Workstation and server hard disks, too, can suffer catastrophic failures if struck by electrical surges. Data loss
and corruption may result. In addition to system downtime, organizations can lose customer, client and supplier
goodwill—not too mention sales— if unable to complete orders, deliver goods and services or even respond effectively to clients and inquiries while technicians work to recover data from backups and return an organization
to normal operation.

In many cases, power protection can be justified by looking at the consequences of not having it. Several hours of professional work can be lost with just one brownout, due to a computer crashing before the work can be saved to disk.

There’s much at risk. According to an April 28, 2008 SmallBizTechnology.com report, the DriveSavers data recovery service claims 43% of companies that suffer data loss never resume operation. Worse, 90% of the organizations that suffer data loss go out of business within two years. Even for those businesses that survive, the ICSA estimates that a single data loss event costs 19 days of productivity.  Quality battery backup systems provide small businesses with a cost-efficient method of protecting themselves from the inadvertent power outages that can trigger data loss. Properly configured, UPSes can power computers during electrical outages lasting a fraction of a second all the way up to several hours. Typically it’s best to plan sufficient run time to enable saving open files and safely shutting down the system until consistent electric service is restored.

Often small businesses face costly outages and downtime as a result of ruined equipment. With systems
unable to access critical data, organizations can find themselves without the business information
required to power everyday operations.

The culprit?
Inconsistent electrical supply and spikes can render expensive computers, servers and other network equipment useless. The electronic components inside systems are very sensitive to electrical fluctuations. UPS devices use a variety of methods, including standby, line-interactive and on-line technologies, to help condition the electricity systems receive.

A single surge can prove devastating to equipment and data. The consequences of lost or corrupted data
quickly add up, even if the data can be restored from a recent backup.

Not only do organizations face the prospect of having to replace failed or damaged equipment, but
costly downtime as well while technical staff members race to obtain replacement equipment, repair
failed components, recover data from the backup and otherwise strive to return an organization to
regular operation. Unfortunately the process can take days, if not longer.

Small businesses can take several simple steps to help protect equipment from damage and loss. While
no method is foolproof, Computer Troubleshooters recommends the following strategies for minimizing
electrical threats:

  • Connect computers using high quality battery backups. Simple inexpensive power strips, while common, provide no protection from electrical surges and lightning strikes. While direct lightning strikes may destroy a battery backup and connected equipment, properly registered devices with the appropriate safeguards often include warranties from such damage.
  • Ensure the battery backup provides sufficient power. Inexpensive battery backups typically provide approximately 350 volt amps and 200 watts of power. While that might be sufficient for powering a single basic desktop computer, a more potent UPS is required to power servers or power-hungry desktops. For example, many small business servers and network equipment may require 600 watts or more and 750 volt-amps or greater to adequately meet system electrical requirements.
  • Connect equipment properly. Battery backups are often unboxed and plugged in. Without proper cable connections and software installation and configuration, these devices may provide no additional protection from inadvertent shutdowns and data loss and corruption.

Despite their best efforts—including purchasing a quality UPS and properly installing and configuring
battery backup software—many small businesses still encounter surge- and spike-related trouble. In
many cases the network is to blame.

Lightning strikes don’t discriminate. Electrical surges can follow any path into a building or office, including the circuits that connect an organization to the Internet: cable, DSL and T1 lines.
Such strikes travel these circuits into a home or facility and can destroy every device in their path.
Since PCs, servers and other network equipment (including switches and firewalls) are typically connected to one
another via physical Ethernet cabling, each connected device becomes subject to damage.

To protect against such threats, organizations should insist on deploying battery backups that provide network surge
protection. When purchasing a battery backup, ensure the unit you select provides surge protection from lightning strikes and a warranty should lightning-related damage occur. If the battery backup model you select does not include lightning safeguards, couple basic battery backups with effective surge protectors to help mitigate the risk lightning strikes pose.

What type of network protections should you seek?
Home office users and small businesses should select UPS and surge protector models that safeguard
telephone/fax, DSL and/or cable connections to protect against strikes entering an office and damaging
multiple systems simultaneously (or to at least have warranty protection in place should such damage
occur).

While a relatively new trend, some battery backups actually include energy-conserving technology. New
models from APC, for example, actively monitor energy consumption and electrical activity while also
providing surge-arresting capabilities. When the unit senses that equipment plugged into its
master/controlled outlets are idle, the battery backup powers
down those devices to conserve energy.

Further, new Earth-friendly battery backups such as APC’s Back-UPS ES750G (pictured below) are designed for desktop computers and include network surge protection. These devices are designed to consume fivetimes
less energy than comparable models. As a result, these battery backups can not only protect against data loss and electrical surge damage, but help pay for themselves in as little as two years. Other manufacturers offering energy-conserving battery backups include CyberPower, whose GreenPower UPS technology claims to significantly reduce UPS system power consumption. Those savings add up, as a 2007 Frost and Sullivan UPS Industry study shows the cumulative cost savings to customers is “remarkable.” With ever-increasing energy costs, organizations that deploy battery backups (particularly multiple units) receive not only line conditioning protections and data safeguards,
but also the opportunity to significantly lower electrical energy bills.

Still have questions? Contact Computer Troubleshooters for assistance selecting and
installing battery backups that best meet your needs. Visit www.ctstcroix.com to contact us.

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