Black Box Pulsar 590A - Manual (Page 3)

3 of 3 7/12/2007
#26728 724-746-5500 blackbox.com
Bluetooth.
If you use low-power radio communications to wirelessly
link phones, computers, and other network devices over short
distances, it’s likely those devices use Bluetooth technology.
Bluetooth, named for a Danish king who ruled more than
1000 years ago, is a technology that primarily supports simple
wireless networking of personal devices and peripherals like
wireless headsets, mobile phones, and PDAs. Bluetooth
devices generally communicate at speeds less than 1 Mbps
and are divided into three power classes.
Class I Bluetooth devices are considered long-range units.
They have a range of up to 100 meters (328 ft.) and a
maximum power output of 20 dBm.
Class II Bluetooth devices have a standard range of up to
10 meters (32.8 ft.) and a maximum power output of 4 dBm.
Class III Bluetooth devices are definitely built for short-
range communication, with a range of up to 10 centimeters
(3.9 in.) and a maximum power output of 0 dBm.
Bluetooth networks feature a dynamic topology called a
piconet or PAN. These networks contain a minimum of two to
a maximum of eight Bluetooth peer devices that use protocols
that are part of Bluetooth standard. The current Bluetooth
standard is version 2.0, and it’s actually the specification’s third
version, following its 1.1 and 1.2 incarnations.
Although the Bluetooth standard uses the same 2.4-GHz
range as 802.11b and 802.11g, it’s much slower than Wi-Fi,
more limited in range, and supports fewer devices.
Technically Speaking
Recognize any of these situations?
• You wait more than 30 minutes to get through
to a vendor’s tech support.
• The so-called “tech” can’t help you or gives you
the wrong answer.
• You don’t have a purchase order number and the
tech refuses to help you.
• It’s 9 p. m. and you need help, but your vendor’s
tech support line is closed.
According to a survey by Data Communications
magazine, 90% of network managers surveyed say
that getting the technical support they need is extremely
important when choosing a vendor. But even though
network managers pay anywhere from 10 to 20% of their
overall purchase price for a basic service and support
contract, the technical support and service they receive falls
far short of their expectations—and certainly isn’t worth
what they paid.
At Black Box, we guarantee the best value and the
best support. You can even consult our Technical Support
Experts before you buy if you need help selecting just
the right component for your application.
Don’t waste time and money— call Black Box today.
Why Buy From Black Box? Exceptional Value.
Exceptional Tech Support. Period.
Item Code
Plantronics ® Pulsar ™ 590A Bluetooth Headset 69746-01