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[Final Draft—Nortel Confidential]
14
Preface
The access point appears as an Ethernet node and performs a routing function by
moving packets from the wired LAN to remote workstations on the wireless
infrastructure.
Radio Characteristics
For the A radio, the Access Point 2220 uses a radio modulation technique known
as Orthogonal Frequency Division Multiplexing (OFDM), and a shared collision
domain (CSMA/CA). It operates at the 5GHz Unlicensed National Information
Infrastructure (UNII) band with turbo mode. Data is transmitted over a
half-duplex radio channel operating at up to 108 Megabits per second (Mbps) in
turbo mode. The default mode is 54 Mbps.
Power over Ethernet
The Access Point 2220 supports Power over Ethernet (PoE). You need not
configure anything to access power from a IEEE 802.3af-draft-compliant switch.
To use PoE to power your Access Point 2220, plug in a cable to the RJ-45 port on
the back of the Access Point 2220 and connect the other end of the RJ-45 cable to
a switch that delivers IEEE 802.3af-draft-compliant power.
When you are using PoE, you do not require separate AC power. The Access Point
2220 draws 8.5 W.
The Access Point 2220 uses both spare and signal RJ-45 power pairs.
LED Indicators
The Access Point 2220 includes four status LED indicators, as described in the
following figure and table.
214853-A
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