TRENDnet TEW-310APB User Manual page 45

5. What is the difference between 22mbps and 11mbps wireless products? What's the
benefit of 22mbps Wireless Access Point?
The 22mbps is made possible by the new modulation method called PBCC developed by TI,
which is different from the current CCK modulation method for 11mbps. The 22mbps Wireless
Access Point offers double data rate than that of 11mbps with 20% more distance coverage. The
22mbps wireless products also operate in the 2.4GHz ISM band and they are backward
compatible with 11mbps wireless products.
6. What is Roaming?
Roaming is the ability of portable computers, e.g., Packet PC and notebook, to have consistent
and continuous data transmission/reception throughout an area covered by more than one
Wireless Access Point. In order to achieve seamless connectivity, all the wireless clients and
Access Points must be set to use the same SSID. When a user walked out of the coverage area
of one AP into another, the wireless client network device will automatically reestablish
connection with the new AP.
7. What is a MAC Address?
The Media Access Control (MAC) address is a unique number assigned by the manufacturer to
any Ethernet networking devices, e.g. a network adapter, that allows the network to identify it at
the hardware level. Unlike IP addresses, which can be changed or dynamically assigned by
the network, the MAC address of a networking device is permanent.
8. What is WEP?
Wired Equivalent Privacy (W EP) is a type of data encryption mechanism described in the IEEE
802.11 standard. The 22mbps Wireless Access Point supports 64/128/256 bit shared key for
WEP.
9. Would the information be transmitted securely in the air?
WLAN offers two layers of protection for security. First layer is on the hardware level. As
with Direct Sequence Spread Spectrum (DSSS) technology, it has the inherent security feature
of scrambling. Second of all, on the software level, the security control is made possible by
Wired Equivalent Privacy (WEP) for access control.
10. What is ISM band?
The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use
in the ISM (Industrial, Scientific and Medical) band. The 2.4GHz unlicensed ISM band is
available worldwide, which presents the opportunity for the global market of 802.11b high
speed wireless products.
11. What is 4X mode?
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