User Guide
32
UltraMobilePC
Infrastructure mode
The Infrastructure mode allows the UltraMo-
bilePC and other wireless devices to join a
wireless network created by an Access Point
(AP) (sold separately) that provides a central
link for wireless clients to communicate with
each other or with a wired network.
(All devices must install optional 802�11 wireless
LAN adapters�)
Ad-hoc mode
The Ad-hoc mode allows the UltraMobilePC
to connect to another wireless device. No
access point (AP) is required in this wireless
environment.
(All devices must install optional 802�11 wireless
LAN adapters�)
Wireless LAN Connection (on selected models)
The optional built-in wireless LAN is a compact easy-to-use wireless Ethernet adapter.
Implementing the IEEE 802.11 standard for wireless LAN (WLAN), the optional built-
in wireless LAN is capable of fast data transmission rates using Direct Sequence Spread
Spectrum (DSSS) and Orthogonal Frequency Division Multiplexing (OFDM) technologies.
The optional built-in wireless LAN is backward compatible with the earlier IEEE 802.11
standards allowing seamless interfacing of wireless LAN standards.
The optional built-in wireless LAN is a client adapter that supports Infrastructure and Ad-hoc
modes giving you exibility on your existing or future wireless network congurations for
distances up to 40 meters between the client and the access point.
To provide efcient security to your wireless communication, the optional built-in wireless
LAN comes with a 64-bit/128-bit Wired Equivalent Privacy (WEP) encryption and Wi-Fi
Protected Access (WPA) features.
These are examples of the UltraMobilePC
connected to a Wireless Network�
Desktop PC
PDA
UltraMobilePC
Access
Point
Desktop PC
PDA
UltraMobilePC