P-661HNU Series Support Notes
23
All contents copyright © 2010 ZyXEL Communications Corporation.
Wireless FAQ
General FAQ
1. What is a Wireless LAN?
Wireless LANs provide all the functionality of wired LANs, without the need for
physical connections (wires). Data is modulated onto a radio frequency carrier
and transmitted through the ether. Typical bit-rates are 11Mbps and 54Mbps,
although in practice data throughput is half of this. Wireless LANs can be
formed simply by equipping PC's with wireless NICs. If connectivity to a wired
LAN is required an Access Point (AP) is used as a bridging device. AP's are
typically located close to the centre of the wireless client population.
2. What are the advantages of Wireless LAN?
Mobility:
Wireless LAN systems can provide LAN users with access to
real-time information anywhere in their organization. This mobility supports
productivity and service opportunities not possible with wired networks.
Installation Speed and Simplicity:
Installing a wireless LAN system can be
fast and easy and can eliminate the need to pull cable through walls and
ceilings.
Installation Flexibility:
Wireless technology allows the network to go where
wire cannot go.
Reduced Cost-of-Ownership:
While the initial investment required for
wireless LAN hardware can be higher than the cost of wired LAN hardware,
overall installation expenses and life-cycle costs can be significantly lower.
Long-term cost benefits are greatest in dynamic environments requiring
frequent moves and changes.
Scalability:
Wireless LAN systems can be configured in a variety of topologies
to meet the needs of specific applications and installations. Configurations are
easily changed and range from peer-to-peer networks suitable for a small
number of users to full infrastructure networks of thousands of users that
enable roaming over a broad area.
3. What is the disadvantage of Wireless LAN?
