SENAO NOA-3570, User Manual

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NOA-3570 User’s Guide
Chapter 1 Getting to Know Your NOA-3570 31
IEEE 802.11g Wireless LAN Standard
The NOA-3570 complies with the IEEE 802.11g wireless standard. IEEE 802.11g has several
intermediate rate steps between the maximum and minimum data rates. The IEEE 802.11g
data rate and modulation are as follows. The modulation technique defines how bits are
encoded onto radio waves.
Note: The NOA-3570 may be prone to RF (Radio Frequency) interference from other
2.4 GHz devices such as microwave ovens, wireless phones, Bluetooth enabled
devices, and other wireless LANs.
IEEE 802.11b Wireless LAN Standard
The NOA-3570 also fully complies with the IEEE 802.11b standard. This means an IEEE
802.11b radio card can interface directly with an IEEE 802.11g device (and vice versa) at 11
Mbps or lower depending on range.
The IEEE 802.11b data rate and corresponding modulation techniques are shown in the table
below.
STP (Spanning Tree Protocol) / RSTP (Rapid STP)
(R)STP detects and breaks network loops and provides backup links between switches,
bridges or routers. It allows a bridge to interact with other (R)STP -compliant bridges in your
network to ensure that only one path exists between any two stations on the network.
SSL Passthrough
SSL (Secure Sockets Layer) uses a public key to encrypt data that's transmitted over an SSL
connection. Both Netscape Navigator and Internet Explorer support SSL, and many Web sites
use the protocol to obtain confidential user information, such as credit card numbers. By
convention, URLs that require an SSL connection start with “https” instead of “http”. The
NOA-3570 allows SSL connections to take place through the NOA-3570.
Table 1 IEEE 802.11g
DATA RATE (MBPS) MODULATION
6/9/12/18/24/36/48/54 OFDM (Orthogonal Frequency Division Multiplexing)
Table 2 IEEE 802.11b
DATA RATE (MBPS) MODULATION
1 DBPSK (Differential Binary Phase Shift Keyed)
2 DQPSK (Differential Quadrature Phase Shift Keying
)
5.5 / 11 CCK (Complementary Code Keying)