Manual

357
Appendix E
Radio Bands
Allied Telesyn’s AT-WA7400 Wireless Access Point is capable of
operating in the 2.4GHZ (IEEE 802.11g/b) AND in the 5GHZ band (IEEE
802.11a) simultaneously. The access point is shipped with the 802.11g/b
radio enabled and is software upgradeable to operate in 802.11g/b and
802.11a. For further information about this upgrade, please contact your
Allied Telesyn sales representative.
Some of the advantages of the 802.11a option are:
 Higher performance. 802.11a can deliver data rates up to 54Mbps and
there is enough room in the 5GHz spectrum to support up to 12 access
points operating in the same area without causing interference
between access points. This equates to 432Mbps (12 X 54Mbps) total
data rate performance. With 802.11g, you have three non-overlapping
channels for setting access point frequencies, which can limit capacity.
 Less RF interference: The growing use of 2.4GHz cordless phones
and Bluetooth devices is crowding the radio spectrum within many
facilities. This significantly decreases the performance of 802.11g
wireless LANs. The use of 802.11a operating in the relatively
uncrowded 5GHz band avoids this interference.
 Ability to use the Wireless Distribution System (WDS) feature, using
the 802.11a radio for bridging to another access point while servicing
802.11g customers without using user bandwidth for the bridging
function.