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Part Number: 10015006 Rev. AA
Copyright © 2006 3Com Corporation
Published February 2006

www.3Com.com

3Com Wireless LAN Mobility System

External Dual-Band 
Antenna Guide

3Com’s Wireless LAN Mobility System uses 3Com access points, along with 
wireless switches and controllers, to provide versatile and secure enterprise-level 
wireless LAN services. 3Com wireless access points can be used with external 
dual-band antennas to provide greater coverage and versatility. 3Com offers 
different antennas to meet a range of indoor and outdoor applications.

This guide describes how to select and implement 3Com external antennas for use 
with our wireless access points in a Wireless LAN Mobility System. The information 
in this guide applies to 3Com Wireless Switch v4.0 software release 2—Mobility 
System Software (MSS) v4.0.21 and Wireless Switch Manager (3WXM) v4.0.18.

Overview

To use an external antenna with your 3Com access point perform the following 
steps:

1

Select an appropriate external antenna for your access point that meets the needs 
of your installation. Refer to “Choosing a 3Com Dual-Band External Antenna”.

2

Install and connect the external antenna and access point. See “Installing an 
External Antenna and Access Point”.

3

Use the Wireless Switch Manager software (3WXM) to configure the access point 
to use the external antenna. Refer to “Configuring an AP to use an External 
Antenna”.

Summary of Contents for 3CWE591

Page 1: ...ent 3Com external antennas for use with our wireless access points in a Wireless LAN Mobility System The information in this guide applies to 3Com Wireless Switch v4 0 software release 2 Mobility System Software MSS v4 0 21 and Wireless Switch Manager 3WXM v4 0 18 Overview To use an external antenna with your 3Com access point perform the following steps 1 Select an appropriate external antenna fo...

Page 2: ...nts Table 2 lists wireless access points that can be used with a 3Com external dual band antenna When selecting an external antenna to use with your 3Com wireless access point refer to the restrictions described in Unsupported Configurations 3Com External Dual Band Antennas Table 3 lists the 3Com external dual band antennas supported by this release Table 1 3Com Wireless Switches and Controllers C...

Page 3: ...Com antenna cables provide a certified connection between the 3Com access point and the 3Com antenna The cables also provide proper connectivity between the SMA jack on the access point and the N type jack on the antenna Note that external antennas and cables are sold separately 3Com offers ultra low loss cables to maximize the performance of your wireless installation in either 2 4 GHz or 5 0 GHz...

Page 4: ...nector Figure 2 3Com AP3750 External Antenna Connectors Table 5 Supported 3Com External Antenna Cables Model No Description Length Gain Connectors 3CWE580 3Com Ultra Low Loss 6 foot Antenna Cable 1 8 m 6 ft 2 4 GHz 0 6 dBl 5 0 GHz 1 2 dBl SMA male to N type male 3CWE581 3Com Ultra Low Loss 20 foot Antenna Cable 6 1 m 20 ft 2 4 GHz 2 0 dBl 5 0 GHz 4 0 dBl SMA male to N type male 3CWE582 3Com Ultra ...

Page 5: ...ess LAN Switch Management software 3WXM Follow this procedure to select an external antenna 1 At your management console launch the 3WXM software 2 Choose an AP device from the list and select edit 3 Select the appropriate radio to which the external antenna is connected for example Radio A Radio B or Radio G see Selecting the Radio 4 In the radio attributes box select antenna type A list of suppo...

Page 6: ...dios and operates as 802 11a and 802 11b g simultaneously An external antenna can be connected to one or both antenna connectors see Figure 2 The AP7250 and AP8250 feature a single radio that operates as 802 11b g only When an external antenna is used it must be connected to the left antenna jack see Figure 3 and Figure 4 The AP8750 has dual radios and operates as both 802 11a and 802 11b g Howeve...

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