ZyXEL Communications ZyAIR User Manual page 31

ZyAIR LED
The blue ZyAIR LED (also known as the Breathing LED) is on when the ZyAIR is on and blinks (or
breaths) when data is being transmitted to/from its wireless stations. You may use the web configurator to
turn this LED off even when the ZyAIR is on and data is being transmitted/received.
802.11b Wireless LAN Standard
ZyAIR products containing the letter "B" in the model name, such as ZyAIR B-2000, ZyAIR B-2000 v.2,
comply with the 802.11b wireless standard.
The 802.11b data rate and corresponding modulation techniques are as follows. The modulation technique
defines how bits are encoded onto radio waves.
Data Rate (Mbps)
1
2
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The ZyAIR may be prone to RF (Radio Frequency) interference from other 2.4 GHz
devices such as microwave ovens, wireless phones, Bluetooth enabled devices,
Output Power Management
Power Management is the ability to set the level of output power.
There may be interference or difficulty with channel assignment when there is a high density of APs within
a coverage area. In this case you can lower the output power of each access point, thus enabling you to
place access points closer together.
Limit the number of Client Connections
You may set a maximum number of wireless stations that may connect to the ZyAIR. This may be
necessary if for example, there is difficulty with channel assignment due to a high density of APs within a
coverage area.
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
Getting to Know Your ZyAIR
Modulation
DBPSK (Differential Binary Phase Shift Keyed)
DQPSK (Differential Quadrature Phase Shift Keying
CCK (Complementary Code Keying)
and other wireless LANs.
ZyAIR Wireless Gateway Series User's Guide
802.11b
)
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