P-660HWP-Dx Support Notes
All contents copyright © 2007 ZyXEL Communications Corporation.
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The speed of Wireless LAN is still relatively slower than wired LAN. The setup
cost of Wireless LAN is relative high because the equipment cost including
access point and PCMCIA Wireless LAN card is higher than hubs and CAT 5
cables.
4. Where can you find 802.11 wireless networks?
Airports, hotels, and even coffee shops like Starbucks are deploying 802.11
networks, so people can wirelessly surf the Internet with their laptops.
5. What is an Access Point?
The AP (access point also known as a base station) is the wireless server that
with an antenna and a wired Ethernet connection that broadcasts information
using radio signals. AP typically acts as a bridge for the clients. It can pass
information to wireless LAN cards that have been installed in computers or
laptops allowing those computers to connect to the campus network and the
Internet without wires.
6. What
’s the difference between IEEE802.11a/b/g?
The IEEE 802.11 is a wireless LAN industry standard, and the objective of
IEEE 802.11 is to make sure that different manufactures' wireless LAN devices
can communicate to each other. Below is a brief comparison for the
IEEE802.11 a/b/g:
Publish
Time
Frequency
Band(GHZ)
Data Rate(Mbps)
Compatibility
IEEE802.11a 1999
UNII Band
5.15~5.825
6,9,12,18,24,36,48,
54
Only work with
802.11a
devices
IEEE802.11b 1999
ISM Band
2.4~2.4835
1,2,5.5,11
-
IEEE802.11g 2001
ISM Band
2.4~2.4835
6,9,12,18,24,36,48, Backward
compatible with
