Specifications - Fujitsu Lifebook T4220 User Manual

Specifications

Item
Type of network
Transfer rate
Active frequency
Number of channels
Typical operating distances**
Security
Maximum recommended number of computers to
be connected over wireless LAN (during ad hoc
connection)
* "Wi-Fi based" indicates that the interconnectivity test of the organization which guarantees the interconnectivity of
wireless LAN (Wi-Fi Alliance) has been passed.
** The communication ranges shown above will increase or decrease depending on factors such as number of walls,
reflective material, or interference from external RF sources.
*** Encryption with network key (WEP) is performed using the above number of bits, however, users can set 40 bits/
104 bits after subtracting the fixed length of 24 bits.
**** Depending on practical environments, the allowable number of computers to be connected may be decreased.
W i r e l e s s L A N U s e r ' s G u i d e
Specification
The Intel PRO/Wireless 3945ABG Network Connections WLAN
device conforms to IEEE 802.11a and 802.11b/g (Wi-Fi based)*.
The Intel PRO/Wireless4965ABGN Network Connections WLAN
device conforms to IEEE 802.11a, 802.11b/g, and 802.11n
(draft-compliant), Wi-Fi based* (Note that at the time of
publication of this document, the 802.11n standard had not yet
been ratified, and is still in draft stage.
(Automatic switching) 54 Mbps maximum data rate
■ 802.11n: 2.4 GHz or 5 GHz
802.11b/g: 2400~2473 MHz
■
■ 802.11a: 4900 ~ 5850 MHz
■ 802.11a: 8 independent channels
802.11b/g: 11 channels, 3 non-overlapping channels
■
■ 802.11n:
2.4 GHz - 3 non-overlapping channels when Channel Bonding
is not used; 2 non-overlapping channels when Channel
Bonding is used.
5 GHz - 12 non-overlapping UNII channels with or without
Channel Bonding
802.11a: 40 ft. (12 m) @ 54 Mbps; 300 ft. (91 m) @ 6 Mbps
■
802.11b: 100 ft. (30 m) @ 11 Mbps; 300 ft. (91 m) @ 1 Mbps
■
■ 802.11g: 100 ft. (30 m) @ 54 Mbps; 300 ft. (91 m) @ 1 Mbps
802.11n: Estimated double the operating distance of 802.11g
■
and 802.11a in their respective frequencies.
Encryption Types - WEP, TKIP, AES***
WPA 1.0 compliant
Encryption Key lengths Supported: 64 bits and 128 bits
802.1x/EAP
10 units or less ****
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