HP 6930p - EliteBook - Core 2 Duo 2.8 GHz Руководство пользователя - Страница 5

Using wireless devices (select models

only)

Wireless technology transfers data across radio waves instead of wires. Your computer may be

equipped with one or more of the following wireless devices:

●

Wireless local area network (WLAN) device—Connects the computer to wireless local area

networks (commonly referred to as Wi-Fi networks, wireless LANs, or WLANs) in corporate offices,

your home, and public places such as airports, restaurants, coffee shops, hotels, and universities.

In a WLAN, each mobile wireless device communicates with a wireless router or a wireless access

point.

●

HP Mobile Broadband Module—A wireless wide area network (WWAN) device that provides

access to information wherever mobile network operator service is available. In a WWAN, each

mobile device communicates to a mobile network operator's base station. Mobile network operators

install networks of base stations (similar to cell phone towers) throughout large geographic areas,

effectively providing coverage across entire states, regions, or even countries.

●

Bluetooth® device—Creates a personal area network (PAN) to connect to other Bluetooth-enabled

devices such as computers, phones, printers, headsets, speakers, and cameras. In a PAN, each

device communicates directly with other devices, and devices must be relatively close together—

typically within 10 meters (approximately 33 feet) of each other.

Computers with WLAN devices support one or more of the following IEEE industry standards:

●

802.11b, the first popular standard, supports data rates of up to 11 Mbps and operates at a

frequency of 2.4 GHz.

●

802.11g supports data rates of up to 54 Mbps and operates at a frequency of 2.4 GHz. An 802.11g

WLAN device is backward compatible with 802.11b devices, so they can operate on the same

network.

●

802.11a supports data rates of up to 54 Mbps and operates at a frequency of 5 GHz.

NOTE:

●

802.11n supports data rates of up to 450 Mbps and may operate at 2.4 GHz or 5 GHz, making it

backward compatible with 802.11a, b, and g.

NOTE:

final specifications differ from the draft specifications, it may affect the ability of the computer to

communicate with other 802.11n WLAN devices.

For more information on wireless technology, refer to the information and Web site links provided in

Help and Support.

802.11a is not compatible with 802.11b and 802.11g.

The specifications for the 802.11n WLAN are draft specifications and are not final. If the