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"C" Programming Guide For Optimus S/R
IEEE 802.11b
802.11b Specification
Frequency Range:
Data Rate:
Connected Devices:
Protocol:
Coverage:
Max. Output Power:
Spread Spectrum:
Modulation:
Standard:
Note: All specifications are subject to change without prior notice.
IEEE 802.11b is an industrial standard for Wireless Local Area Networking
(WLAN), which enables wireless communications over a long distance.
The speed of the connection between wireless devices will vary with range and
signal quality. To maintain a reliable connection, the 802.11b system automatically
fallback from 11 Mbps to 5.5, 2 or 1 Mbps as range increases or signal quality
decreases.
2.4 ~ 2.5 GHz
11, 5.5, 2, 1 Mbps auto-fallback
1 for Ad-hoc mode (No AP)
Multiple for infrastructure mode (AP required)
IP/TCP/UDP
250 meters line-of-sight
100 mW
DSSS
DBPSK (1 Mbps), DQPSK (2 Mbps), CCK (11 Mbps)
IEEE 802.11b, interoperable with Wi-Fi devices
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