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User Guide
Wireless LAN Access Point 7250
3CRWE725075
(Model WL-455)
http://www.3com.com/
http://www.3com.com/support/en_US/productreg/frontpg.html/
Published December, 2003
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3Com Corporation Copyright © 2003 3Com Corporation. All rights reserved. No part of this documentation may be 350 Campus Drive reproduced in any form or by any means or used to make any derivative work (such as translation, Marlborough, MA transformation, or adaptation) without written permission from 3Com Corporation. 01752-3064 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation
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Contents INTRODUCTION Product Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 Security - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 Performance and Reliability - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 Manageability - - - - - - - - - - -
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Configuration Login - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26 Setting the Country Code - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26 Basic Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 27 Advanced Setup - - - - - - - - - - - - - - - - -
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TECHNICAL SUPPORT Obtaining Support for your Product - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 52 Register Your Product to Gain Service Benefits- - - - - - - - - - - - - - - - - - - - - - - - - 52 Purchase Value-Added Services - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 52 Where To Go For Help - - - - - - - - - - - - - - - - - - - - - -
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1 INTRODUCTION The 3Com® Wireless LAN Access Point 7250 supports 802.11g and 802.11b wireless users. With their flexibility and unfettered access, wireless LANs are changing the way people work. Now with 3Com’s enterprise-class wireless access points, you can build a cost-effective, reliable, secure wireless network that provides users with seamless connectivity to the Internet, company intranet, and the wired corporate network from anywhere they happen to be—conference room, cafeteria or o
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PERFORMANCE AND RELIABILITY 3Com wireless access point performance features ensure reliable and seamless connections for users wherever they roam. Automatic channel selection automatically finds the least loaded channel for interference-free communication. Auto network connect and dynamic rate shifting keep users connected through a wide variety of conditions by changing to the optimum connection speed as they move through the network. MANAGEABILITY 3Com offers a wide range of standards-bas
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• Implementing a complete wireless LAN solution, including bridges, gateways, access points and clients; Wi-Fi certification guarantees compatibility among vendors. • Providing access to hot spots in public spaces, such as coffee shops or university cafeterias. NETWORK CONFIGURATION AND PLANNING The wireless solution supports a stand-alone wireless network configuration as well as an integrated configuration with 10/100 Mbps Ethernet LANs. The wireless network cards, adapters, and access po
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INFRASTRUCTURE WIRELESS LAN The access point can also provide access to a wired LAN for wireless workstations. An integrated wired/wireless LAN is called an infrastructure configuration. A Basic Service Set (BSS) consists of a group of wireless PC users, and an access point that is directly connected to the wired LAN. Each wireless PC in this BSS can talk to any computer in its wireless group via a radio link, or access other computers or network resources in the wired LAN infrastructure vi
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Seamless Roaming File Server Desktop PC Switch Notebook with Wireless PCI Card Adapter Switch Access Point Notebook with Wireless PCI Card Adapter Access Point PC withWireless PCI Adapter TERMINOLOGY Access Point—An internetworking device that seamlessly connects wired and wireless networks. Ad Hoc—An ad hoc wireless LAN is a group of computers, each with LAN adapters, connected as an independent wireless LAN. Backbone—The core infrastructure of a network. The portion of the netwo
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EAP—Extensible Authentication Protocol, which provides a generalized framework for several different authentication methods. ESS—Extended Service Set. More than one BSS is configured to become an ESS. LAN mobile users can roam between different BSSs in an ESS (ESS-ID, SSID). Ethernet—A popular local area data communications network, which accepts transmission from computers and terminals. Infrastructure—An integrated wireless and wired LAN is called an infrastructure configuration. RADIUS—Re
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2 INSTALLING THE ACCESS POINT This equipment must be installed in compliance with local and national building codes, regulatory restrictions, and FCC rules. For the safety of people and equipment, this product must be installed by a professional technician/installer. CAUTION: Before installing, see the important warnings and cautions in “Safety Information” on page 11. ! INSTALLATION REQUIREMENTS The following items are required for installation: • Access Point 7250. • Standard detachable ant
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operating systems: Windows 98, Windows ME, Windows NT 4.0 Service Pack 6, Windows 2000, or Windows XP. It is recommended that this computer become the dedicated workstation for managing and configuring the access point and the wireless network. POWER REQUIREMENTS The access point complies with the IEEE 802.3af Power-over-Ethernet standard. It receives power over standard category 5 straight (8-wire) Ethernet cable. Installation requires the use of either the 3Com AC adapter or IEEE 802.3af
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CAUTION: The 3Com AC adapter (part number 61-0107-000) input relies on a 16A rated ! building fuse or circuit protector for short circuit protection of the line to neutral conductors. CAUTION: It is the responsibility of the installer to ensure that the Power-over-Ethernet (POE) power supply is properly connected. Connection to any ! other device, such as a standard Ethernet card or another POE supply, may result in permanent damage to equipment, electric shock, or fire. Refer to the instal
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Radio Ethernet Power For optimal performance, ensure the access point operates in temperature ranges between 0° C to 40° C (32° F to 104° F). When used with external antennas, the access point operating temperature range must be 15° C to 40° C (59° F to 104° F). NOTE: Regulatory restrictions dictate that when this device is operational, the minimal body-to-antenna distance is 1 Meter (3 Feet). BEFORE YOU BEGIN Record the access point MAC address and serial number in a safe place before the a
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CONNECTING THE STANDARD ANTENNAS The Access Point 7250 is supplied with standard detachable antennas. These should be attached before the access point is installed. If using alternate antennas, see “Selecting and Connecting a Different Antenna Model” on page 20. 1 Carefully unpack the standard detachable antennas. CAUTION: Do not handle the antenna tips, especially after they are connected to the access point, as this could lead to electrostatic discharge (ESD), which could damage ! the equi
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Radio Ethernet Power There are three ways to supply power to the access point: • Use the AC adapter included with the Access Point 7250 • Use a 3Com Integrated Power-over-Ethernet power supply. In this case, you need to supply a second Ethernet cable to connect to the wired LAN. • Connect the access point directly to your own power-over-Ethernet hub or switch, which must also comply with the IEEE 802.3af standard. • If you supply your own Ethernet cable for connecting power, be sure that it
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Radio Ethernet Power Radio Ethernet Power USING AN OPTIONAL POWER-OVER-ETHERNET INJECTOR CAUTION: To avoid damaging network equipment, make sure that the cables are connected from access point to power supply to LAN as shown above and ! described below. The Power-Over-Ethernet Injector can be located at any point between the access point and the LAN access port, wherever a convenient power outlet exists. If you supply your own Ethernet cable for connecting power, be sure that it is standard
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USING A POWER-OVER-ETHERNET LAN PORT If your LAN equipment complies with the IEEE 802.3af power-over-Ethernet standard, you can connect the access point directly to a LAN port. For example, the illustration above right shows a connection through a 3Com Ethernet Power Supply to ® a 3Com SuperStack Switch. CHECKING THE LEDS When power is connected, the access point LEDs light. The illustration and the following table describe the LEDs and their functions. Name Description Radio LED blinks red
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A A B B MOUNTING ON A WALL CAUTION: The mounting plate is designed for wall mount installation only. To avoid equipment damage and possible injury, do not use the mounting plate for a ceiling ! installation. The access point comes equipped with all the necessary hardware for mounting on a wall, including a mounting plate. For a secure installation, the mounting plate should be placed perpendicular to the floor, with the arrow pointed up, as indicated on the mounting plate, with the smooth s
