SMC Networks EliteConnect SMC2555W-AG2 User Manual page 109

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System Configuration
Antenna Control Method - Selects the use of both fixed antennas operating in
diversity mode or a single antenna. (Default: Diversity)
• Diversity: The radio uses both antennas in a diversity system. Select this method
when the Antenna ID is set to "Default Antenna" to use the access point's
integrated antennas.
• Right: The radio only uses the antenna on the right side (the side closest to the
access point LEDs). Select this method when using an optional external antenna
that is connected to the right antenna connector.
• Left: The radio only uses the antenna on the left side (the side farthest from the
access point LEDs). Select this method when using an optional external antenna
that is connected to the left antenna connector.
Antenna Location – Selects the mounting location of the antenna in use; either
"Indoor" or "Outdoor." Selecting the correct location ensures that the access point
only uses radio channels that are permitted in the country of operation.
(Default: Indoor)
MIC Mode – The Michael Integrity Check (MIC) is part of the Temporal Key Integrity
Protocol (TKIP) encryption used in Wi-Fi Protected Access (WPA) security. The MIC
calculation is performed in the access point for each transmitted packet and this can
impact throughput and performance. The access point supports a choice of software
or hardware MIC calculation. The performance of the access point can be improved
by selecting the best method for the specific deployment. (Default: Software)
• Hardware: Provides best performance when the number of supported clients is
less than 27.
• Software: Provides the best performance for a large number of clients on one radio
interface. Throughput may be reduced when both 802.11a and 802.11g interfaces
are supporting a high number of clients simultaneously.
Super A – The Atheros proprietary Super A performance enhancements are
supported by the access point. These enhancements include bursting, compression,
and fast frames. Maximum throughput ranges between 40 to 60 Mbps for
connections to Atheros-compatible clients. (Default: Disabled)
Beacon Interval – The rate at which beacon signals are transmitted from the access
point. The beacon signals allow wireless clients to maintain contact with the access
point. They may also carry power-management information.
(Range: 20-1000 TUs; Default: 100 TUs)
Data Beacon Rate – The rate at which stations in sleep mode must wake up to
receive broadcast/multicast transmissions.
Known also as the Delivery Traffic Indication Map (DTIM) interval, it indicates how
often the MAC layer forwards broadcast/multicast traffic, which is necessary to wake
up stations that are using Power Save mode. The default value of 2 indicates that
the access point will save all broadcast/multicast frames for the Basic Service Set
(BSS) and forward them after every second beacon. Using smaller DTIM intervals
delivers broadcast/multicast frames in a more timely manner, causing stations in
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