Bedienungsanleitung Logitech bluetooth (Seite 7 von 34) (Englisch)

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1.7 Which Bluetooth specification are Logitech products compatible with?

Our products are compatible with the Bluetooth 2.0 with Enhanced Data Rate (EDR)

specification, the latest released specification.

1.8 What is the range of Logitech Bluetooth products?

Our products support Bluetooth class II. This means they will work at least 10 meters (33 feet)

away from the receiver.

1.9 What are the differences between Wi-Fi (802.11b) and the Bluetooth

wireless technology?

Bluetooth wireless technology and Wi-Fi are complementary technologies that do different things:

• Bluetooth wireless technology is designed to replace USB cables between cell phones,

laptops, and other computing and communication devices within a 10-meter range.

• Wi-Fi is wireless Ethernet. It provides an extension or replacement of wired networks for

dozens of computing devices.

Wireless Wired

Bluetooth ↔ USB

Wi-Fi ↔ Ethernet

1.10 Will using Wi-Fi and Bluetooth technologies together cause interference?

Studies by a number of companies indicate that if the separation is more than two meters, in most

cases there is no perceptible degradation in transmitting data in either device. From two meters to

about a half-meter, there is a graceful degradation. As the devices are brought into very close

proximity, the degradation can be quite noticeable. Fortunately, this scenario only happens when

the two systems are in the same device, and in those cases, Bluetooth hardware and Wi-Fi

hardware can collaborate to dramatically improve performance. In addition, all Bluetooth desktops

from Logitech include Adaptive Frequency Hopping (AFH) technology, making them an ideal solution

for the growing number of customers who work on a wireless network, because it minimizes

interference between Bluetooth wireless technology and Wi-Fi wireless technology.

1.11 What does "Pairing" mean, and what is a Passkey?

Normally, for security reasons, two Bluetooth devices need to be initially paired before they can

exchange data. The term pairing (or bonding as it is sometimes referred to) means that two devices

are exchanging protected passkeys, enabling a higher level of security. Once the devices have been

paired, the information is stored so that you don't have to re-pair these devices a second time. Even

though devices are paired, this does not mean that they can necessarily transfer data. To do that,

they must also be connected. Once devices are paired and connected, data can be transferred and

two-way communication is enabled.

In certain instances, it makes sense to override the pairing procedure; for example when

exchanging business cards between two mobile phones it may be too cumbersome to pair using a

password. For these situations, most devices have advanced settings that allow you to pair using a

lower level of security.

Version 2.0

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