Installation guide

8 Altitude 300-2 Getting Started Guide

Introduction

Figure 1 shows the rear side of the Altitude 300-2i. Network connectivity and power are supplied to the

unit through an Ethernet cable connected to the RJ45 jack. The Altitude 300-2i can be locked by using a

standard computer cable lock inserted in to the cable lock hole or by using the padlock hole.

Figure 1: Rear View of Altitude 300-2i

Figure 2 shows the back of the Altitude 300-2d. In addition to the Ethernet RJ45 jack, standard computer

cable lock hole, padlock hole, the back of the unit includes connectors for the external antennas. The

two RP-TNC antenna connectors are used for 802.11b/g antennas and the two RP-SMA connectors are

used for 802.11a antennas. To support signal diversity, connections are provided for each radio.

Figure 2: Rear View of Altitude 300-2d

Radio Characteristics

The Altitude 300-2 includes two radios. The first radio is IEEE 802.11a-compliant and uses the

Orthogonal Frequency Division Multiplexing (OFDM) modulation technique. It operates in the 5 GHz

frequency band. Data is transmitted over a half-duplex radio channel operating at up to 54 Mbps.

The second radio supports two modulation modes using half-duplex access. Direct Sequence Spread

Spectrum (DSSS) is used with IEEE 802.11b clients and supports data rates up to 11 Mbps. OFDM is

used with IEEE 802.11g clients and supports data rates up to 54 Mbps. These two modulation modes

operate in the 2.4 GHz band frequency band. In this band the Altitude 300-2 automatically detects the

types of clients that are present and selects the modulation mode accordingly.

ALT001

Padlock Hole

Ethernet Jack

Computer Cable

Lock Hole

ALT002

802.11b/g

RP-TNC

Connectors

802.11a

RP-SMA

Connectors