User's Manual

BETA DRAFT
8 Altitude 300-2 Getting Started Guide
Altitude 300-2TM Wireless Port Introduction
Figure 1 shows the rear side of the
integrated antenna model of the
Altitude 300-2i
™
. The Ethernet cable is
plugged into the RJ45 jack. It supplies
both network connectivity and power to
the unit. The Altitude 300-2i
™
can be
locked by either a standard computer
cable lock inserted in to hole or a
padlock in hole.
Figure 2: Rear View Of Altitude 300-2d
TM
Radio Characteristics
The Altitude 300-2
™
has two radios. The first uses a radio modulation technique known as Orthogonal
Frequency Division Multiplexing (OFDM). It operates in the 5GHz UNII/ISM bands. Data is
transmitted over a half-duplex radio channel operating at up to 54 Megabits per sec.
The second radio has two modulation modes both using half-duplex access. The first modulation mode,
Direct Sequence Spread Spectrum (DSSS) is used with 802.11b clients. It operates up to 11 Mbps. The
second modulation, OFDM is used with 802.11g clients. Like 802.11a it operates up to 54 Mbps. These
modulations use the 2.4 GHz, ISM band. In the ISM band the Altitude 300-2
™
detects what clients are
present and selects the modulation mode.
Both UNII band and ISM band radios support antenna diversity. The Altitude 300-2i
™
has two
integrated antennas. These antennas are dual band, operating simultaneously in the 2.4 - 2.4835 GHz
and 5.15- 5.35 and 5.725 - 5.85 GHz bands. The Altitude 300-2d
™
has external antenna connectors that
that support attachable antennas that operate in the 2.4 - 2.4835 GHz and 5.25 - 5.35 and 5.725 - 5.85
GHz bands.
CAUTION
External antennas must be certified by Extreme Networks or selected by a profession installer to insure
they meet all regulatory requirements.
NOTE
The Altitude 300-2d
TM
is designed for diversity with two antenna connectors for each radio. It is import
for the proper operation of the wireless port that antennas be installed on each connector.
802.11b/g
RP-TNC
Connectors
802.11a
RP-SMA
Connectors