What is a bluetooth "stack, Is bluetooth harmful – Logitech CORDLESS DESKTOP MX 5000 LASER User Manual

Page 9

Advertising
background image

1.14 What are the Bluetooth profiles supported by Logitech products?

Logitech products support the following profiles:

Profile

Allows you to…

Human Interface Device Connect your Bluetooth HID with the system.

Object Exchange

Send and receive business cards/files between the device and

the computer.

Synchronize

Synchronize your address book on the device with the computer.

Headset

Listen to music on your Bluetooth headset.

Basic Imaging

Send pictures to the computer from the device.

Dial-up Network

Connect to the internet via GPRS.

Hard Cable Replacement Print documents on your Bluetooth printer.

Serial Port

Connect to the device's serial port.

Audio Gateway

Use the computer's speakers and mic for the device.

AV

Listen to music on your stereo headset.

Local Area Network

Connect computers wirelessly.

File Transfer

Browse the content of the device.

1.15 What is a Bluetooth "stack"?

A stack is a piece of software that is installed on your computer. It allows Bluetooth devices to be

recognized and used. Currently, a Bluetooth stack is required due to the fact that Windows XP and

Windows 2000 do not natively support Bluetooth. A Bluetooth stack is provided with all Logitech

Bluetooth desktop.

1.16 Which Bluetooth stack (software) is used in Logitech products?

The Bluetooth stack we are using is provided by Broadcom (also known as "BTW"); it allows Bluetooth

devices to be recognized and used. Logitech Desktops also support the Microsoft XP SP2 Bluetooth

stack. However, for optimal performance, we recommend you use the Bluetooth stack provided with

your product. For instance, Microsoft is not currently offering Audio support with its stack, and
therefore you are not able to connect a Bluetooth headset to your Bluetooth hub anymore.

1.17 Is Bluetooth harmful?

Wireless phones and Bluetooth devices both emit non-ionizing radiation, typically at frequencies

from 1 to 2.5 GHz. The data results on health hazards from wireless phone radiation are not

clear-cut, with some studies showing a measure of risk and some showing no problems.
But because it's a good idea to err on the side of caution in such matters, regulatory bodies have

set exposure standards. These are expressed in terms of the "specific absorption rate" (SAR), which

attempts to measure the radiation actually reaching body tissue. The U.S. and Canadian

governments have set a maximum SAR of 1.6 watts per kilogram, while the European Union

permits a slightly higher level. In the real world, emissions generally stay well below the

maximum allowed. According to data from BlackBerry-maker Research in Motion (RIMM), SARs
for GSM BlackBerry devices fall in the range of 0.25 watts per kilogram when used at your ear.

© 2005 Logitech, Inc.

Bluetooth FAQ

5

Version

2.0

Advertising